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Sample records for asme fluids engineering

  1. Proceedings of FEDSM99 3rd ASME/JSME Joint Fluids Engineering Conference

    E-print Network

    Sussman, Mark

    Proceedings of FEDSM99 3rd ASME/JSME Joint Fluids Engineering Conference July 18-23, 1999, San- tions the jet rarely consists of a single drop. Typically, the lead drop exits the nozzle of the device of the nozzle, through the formation of the lead and satellite droplets, to the eventual coalescence of some

  2. 1 Copyright 2013 by ASME Proceedings of the ASME 2013 Fluids Engineering Summer Meeting

    E-print Network

    Yang, Jianming

    state to a vapor due to a reduction in pressure. For example the flow around a lifting surface and a hydrofoil with cavitation. A parametric investigation of the effect of the vapor pressure and constants-of-fluid scalar g gravity vector mass flux between phases n normal vector p pressure pvap vapor pressure

  3. 1 Copyright 2010 by ASME Proceedings of ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting and

    E-print Network

    Yang, Jianming

    ]. The forces on the cylinder, air-water interface topology including run-up on the front face of the cylinder by a coupled level set and volume-of-fluid (CLSVOF) method [5]. A ghost fluid methodology is adopted to handle

  4. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences &

    E-print Network

    Williams II, Robert L.

    -dof linkages, cams, and gear trains, such as the Ross-yoke Stirling engine mechanism shown in Figure 1 trains. #12;2 Copyright © 2010 by ASME Figure 1. Ross-Yoke Stirling Engine Mechanism www.ent.ohiou.edu/~urieli/stirling/engines1 Copyright © 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical

  5. 1 Copyright 2010 by ASME ASME 2010 International Mechanical Engineering Congress and Exposition

    E-print Network

    Van de Ven, James D.

    processes and a conceptual Liquid Piston Stirling Engine are immediate applications. Proposed is a thin1 Copyright © 2010 by ASME -DRAFT- ASME 2010 International Mechanical Engineering Congress was an inspiration for the BHEX concept. He draws connections between optimal engineering design and #12;2 Copyright

  6. Proceedings of ASME 2009 2009 ASME International Mechanical Engineering Congress and Exposition

    E-print Network

    Van de Ven, James D.

    of the liquid piston includes the fluidyne Stirling engine, also used for water pumping [2-4]. A preliminary1 Proceedings of ASME 2009 2009 ASME International Mechanical Engineering Congress Mechanical Energy and Power Systems Lab Department of Mechanical Engineering Worcester Polytechnic Institute

  7. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences &

    E-print Network

    Shu, Lily H.

    engineering problems, has been identified as a promising method of concept generation. However1 Copyright © 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2010 August 15-18, 2010, Montreal

  8. Proceedings of the ASME 2012 Fluids Engineering Division Summer Meeting July 8-12, 2012, Puerto Rico, USA

    E-print Network

    Apte, Sourabh V.

    OF NATURAL STREAMS Kevin Drost School of Mechanical, Industrial and Manufacturing Engineering Oregon State of Mechanical, Industrial and Manufacturing Engineering Oregon State University Corvallis, Oregon 97331 Email focuses on stream dead zones. Charac- terized by slower flow and recirculation, dead zones are naturally

  9. Proceedings of ASME IMECE 2008 ASME International Mechanical Engineering Congress and Exposition

    E-print Network

    Massachusetts at Amherst, University of

    Proceedings of ASME IMECE 2008 ASME International Mechanical Engineering Congress and Exposition OF PARATHYROID HORMONE TO CHANGES IN PLASMA IONIZED CALCIUM IN HUMANS Rajiv P. Shrestha Design and Analysis of Control Systems Laboratory Department of Mechanical and Industrial Engineering University of Massachusetts

  10. 1 Copyright 2012 by ASME Proceedings of the ASME 2012 International Design Engineering Technical Conferences &

    E-print Network

    Shai, Offer

    1 Copyright © 2012 by ASME Proceedings of the ASME 2012 International Design Engineering Technical OF GEAR TRAIN SYSTEMS Terushkin Maria School of Mechanical Engineering Tel Aviv University Tel Aviv decomposition and synthesis of gear train systems. A graph of gear trains, widely reported in the literature

  11. 1 Copyright 2009 by ASME Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and

    E-print Network

    Herrmann, Jeffrey W.

    line design have increased our understanding of product family design [3]. One aspect that has not been1 Copyright © 2009 by ASME Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2009 August 30 - September 2, 2009

  12. 1 Copyright 2009 by ASME Proceedings of the 2009 ASME International Design Engineering Technical Conferences and Computers and

    E-print Network

    Michalek, Jeremy J.

    Engineering & Public Policy Carnegie Mellon University jmichalek@cmu.edu ABSTRACT Plug-in hybrid electric and oil dependency, as compared to fuel cell vehicle and hydrogen-powered vehicles, because the technology1 Copyright © 2009 by ASME Proceedings of the 2009 ASME International Design Engineering Technical

  13. 1 Copyright 2007 by ASME Proceedings of the ASME 2007 International Design Engineering Technical Conferences & Computers and

    E-print Network

    Michalek, Jeremy J.

    1 Copyright © 2007 by ASME Proceedings of the ASME 2007 International Design Engineering Technical Vegas, Nevada, USA DETC2007/DAC-34884 A GAME-THEORETIC APPROACH TO FINDING MARKET EQUILIBRIA firm- level objectives into engineering design optimization models by further enlarging the scope

  14. Proceedings of IMECE2004 2004 ASME International Mechanical Engineering Congress

    E-print Network

    Bobrow, James E.

    that is actuated by an induction motor via a planetary gear system [4]. ARTHuR has two linear motors and a two barProceedings of IMECE2004 2004 ASME International Mechanical Engineering Congress AnaheimDepartment of Mechanical and Aerospace Engineering University of California, Irvine 2Brain Research Institute

  15. 1 Copyright 2014 by ASME Proceedings of the ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering

    E-print Network

    1 Copyright © 2014 by ASME Proceedings of the ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering OMAE2014 June 8-13, 2014, San Francisco, California, USA OMAE2014 and cheaper platforms. Additionally this locates high maintenance systems close to the ocean surface thus

  16. 1 Copyright 2014 by ASME Proceedings of the ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering

    E-print Network

    1 Copyright © 2014 by ASME Proceedings of the ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering OMAE2014 June 8­13, 2014, San Francisco, California USA OMAE2014-3]. Several developers have deployed scaled devices in the open ocean, and there have been a few full

  17. 1 Copyright 2014 by ASME Proceedings of the ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering

    E-print Network

    Bruneau, Steve

    1 Copyright © 2014 by ASME Proceedings of the ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering OMAE2014 June 8-13, 2014, San Francisco, California, USA OMAE2014, 2 C-CORE Centre for Arctic Resource Development St. John's, NL, Canada Ian J. Jordaan Memorial

  18. Proceedings of DETC'01 2001 ASME Design Engineering Technical Conferences

    E-print Network

    Tsao, Tsu-Chin

    applications related, for example, to the analysis and design of highway and railway bridges, cableProceedings of DETC'01 2001 ASME Design Engineering Technical Conferences September 9-12, 2001 mass model is noted in that it fails to predict stresses in the bridge structure. Results of numerical

  19. Proceedings of ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting and 8th International Conference on Nanochannels, Microchannels, and Minichannels

    E-print Network

    Yang, Jianming

    - face immersed-boundary/level-set method is presented. A non- iterative strong coupling scheme] was used for interface tracking with the ghost fluid method for the treatment of interface jump conditions

  20. Accelerator System Model (ASM) user manual with physics and engineering model documentation. ASM version 1.0

    SciTech Connect

    1993-07-01

    The Accelerator System Model (ASM) is a computer program developed to model proton radiofrequency accelerators and to carry out system level trade studies. The ASM FORTRAN subroutines are incorporated into an intuitive graphical user interface which provides for the {open_quotes}construction{close_quotes} of the accelerator in a window on the computer screen. The interface is based on the Shell for Particle Accelerator Related Codes (SPARC) software technology written for the Macintosh operating system in the C programming language. This User Manual describes the operation and use of the ASM application within the SPARC interface. The Appendix provides a detailed description of the physics and engineering models used in ASM. ASM Version 1.0 is joint project of G. H. Gillespie Associates, Inc. and the Accelerator Technology (AT) Division of the Los Alamos National Laboratory. Neither the ASM Version 1.0 software nor this ASM Documentation may be reproduced without the expressed written consent of both the Los Alamos National Laboratory and G. H. Gillespie Associates, Inc.

  1. Proceedings of the ASME 2011 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Michalek, Jeremy J.

    of a single new product [1-2] have progressed to account for issues such as product-line design and preference1 Proceedings of the ASME 2011 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2011 August 29-31, 2011, Washington, DC, USA DETC2011

  2. Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Papalambros, Panos

    in Feit [14], where the author proposed a design of experiments in place of D-optimal designProceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers Conjoint analysis from marketing has been successfully in- tegrated with engineering analysis in design

  3. 77 FR 3073 - American Society of Mechanical Engineers (ASME) Codes and New and Revised ASME Code Cases...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-23

    ... Register on June 21, 2011 (76 FR 36232). The final rule amended the NRC's regulations to incorporate by... INFORMATION: The NRC published a final rule in the Federal Register on June 21, 2011 (76 FR 36232), amending... 10 CFR Part 50 RIN 3150-AI35 American Society of Mechanical Engineers (ASME) Codes and New...

  4. Proceedings of ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Rand, Richard H.

    Proceedings of ASME 2009 International Design Engineering Technical Conferences & Computers is exhibited whenever the sys- tem's behavior is dependent at least in part on its history. Many technological of delay-differential equations, that of a microbubble cloud under acoustic forcing. This system

  5. Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Awtar, Shorya

    biology. The two major processes involved in protein production are transcription and translation. DuringProceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers with stochastic delay are investigated. We assume that the delay may take finitely many different values and its

  6. Proceedings of DETC'98 1998 ASME Design Engineering Technical Conferences

    E-print Network

    Papalambros, Panos

    @umich.edu ABSTRACT Computational models in engineering often use a range of analysis functions within the same models. For example, simulating the performance of an internal combustion engine may include a thermodynamic and combustion simulation to model combustion, a computational fluid dynamics code to model

  7. 1 Copyright 2009 by MSU Proceedings of the ASME 2009 International Mechanical Engineering Congress & Exposition

    E-print Network

    Ghosh, Ruby N.

    1 Copyright © 2009 by MSU Proceedings of the ASME 2009 International Mechanical Engineering of Civil Engineering 3. Department of Mechanical Engineering East Lansing, MI 48824 ABSTRACT The goal material thermal decomposition. The long term goal of the research will be to impact structural fire safety

  8. 1 Copyright 2011 by ASME RETHINKING DESIGN: THE FORMAL INTEGRATION OF ENGINEERING

    E-print Network

    Lewis, Kemper E.

    1 Copyright © 2011 by ASME RETHINKING DESIGN: THE FORMAL INTEGRATION OF ENGINEERING INNOVATION. This paper proposes a set of new "innovation for engineers" guidelines that are defined and used along approach that generates innovation. Consequently, this paper focuses on engineering innovation only

  9. 1 Copyright 2011 by ASME EXPLORING MARKETING TO ENGINEERING INFORMATION MAPPING IN MASS

    E-print Network

    Lewis, Kemper E.

    1 Copyright © 2011 by ASME EXPLORING MARKETING TO ENGINEERING INFORMATION MAPPING IN MASS relation mechanisms that connect the domains of marketing, engineering, and distribution have caused the marketing and engineering domains is complicated by the lack of proven tools and methodologies that allow

  10. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences &

    E-print Network

    Papalambros, Panos

    to high-fidelity, "blackbox" simulations, in the form: #12;2 Copyright © 2010 by ASME -200000 -150000, such as a lookup table. Note that Eq. (1) implies that zi = f(yi), where f is the blackbox simulation. To use

  11. 77 FR 3073 - American Society of Mechanical Engineers (ASME) Codes and New and Revised ASME Code Cases...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-23

    ...various editions and addenda to the ASME Boiler and Pressure Vessel (B&PV) Code...b)(6) of this section: The ASME Boiler and Pressure Vessel Code, Section III...and 1 CFR part 51. Copies of the ASME Boiler and Pressure Vessel Code, the ASME...

  12. Proceedings of the ASME 28th International Conference on Ocean, Offshore and Arctic Engineering

    E-print Network

    Frey, Pascal

    Proceedings of the ASME 28th International Conference on Ocean, Offshore and Arctic Engineering-mail: frederic.alauzet@inria.fr ABSTRACT Engineering offshore problems require a continuous progress of conceivable sim- ulations handled by the numerical platform. Mostly, two approaches can be applied

  13. Proceedings of DETC'99 1999 ASME Design Engineering Technical Conferences

    E-print Network

    Papalambros, Panos

    often sees benefits through reduction of inventory (Baker et al. (1986), Gerchak et al. (1988)), reduction in the proliferation of differ- 1 Copyright © 1999 by ASME #12;ent parts (Martin and Ishii (1996)), reduction in the de- sign lead-in time for products (Ulrich (1995)), ease of designing for new market niches

  14. The 6th ASME-JSME Thermal Engineering Joint Conference March 16-20, 2003

    E-print Network

    Yuen, Walter W.

    , transient thermal response of the insulation tile subjected to an external radiant flux is generated and other commercial thermal insulation systems. Until now, the common design practice in the insulationThe 6th ASME-JSME Thermal Engineering Joint Conference March 16-20, 2003 Copyright © 2003 JSME TED

  15. Proceedings of DETC'04 2004 ASME Design Engineering Technical Conferences and

    E-print Network

    Williams II, Robert L.

    Proceedings of DETC'04 2004 ASME Design Engineering Technical Conferences and Computers spatial design with a closed-form forward pose kinematics solution. Applications include automated. INTRODUCTION Cable-suspended robots (CSRs) are a type of parallel manipulator wherein the end-effector link

  16. Proceedings of IDETC/CIE 2005 ASME 2005 International Design Engineering Technical Conferences &

    E-print Network

    Lewis, Kemper E.

    , that later failures in the design or success of the product are unlikely to be traced to this issueProceedings of IDETC/CIE 2005 ASME 2005 International Design Engineering Technical Conferences CAN A HOUSE WITHOUT A FOUNDATION SUPPORT DESIGN? Andrew Olewnik Graduate Research Assistant Department

  17. Proceedings of the ASME 28th International Conference on Ocean, Offshore and Arctic Engineering

    E-print Network

    Smith, Ryan N.

    Proceedings of the ASME 28th International Conference on Ocean, Offshore and Arctic Engineering) is expected to operate in an ocean in the presence of poorly known disturbance forces and moments, with the disturbances being initial errors in the state of the AUV. INTRODUCTION Oceans cover three-fourths of the earth

  18. Proceedings of ASME 2006 ASME 2006 International Mechanical Engineering Congress and Exposition, Winter Annual

    E-print Network

    &M University College Station, Texas 77843-3141 ABSTRACT In order to build a reliable constitutive model. Lagoudas Department of Aerospace Engineering Texas A&M University College Station, Texas 77843-3141 Email: lagoudas@aero.tamu.edu Bjoern Kiefer Alica J. Broederdorf Department of Aerospace Engineering Texas A

  19. Mechanical Energy and Power Systems Laboratory Mechanical Energy and Power Systems Laboratory Proceedings of the ASME 2009 International Mechanical Engineering Conference and

    E-print Network

    Van de Ven, James D.

    in the past, re- cent developments in Stirling engine technology utilizing rolling diaphragm seals piston Stirling [2] engine, it was decided that a rolling diaphragm seal could be used to effectively Proceedings of the ASME 2009 International Mechanical Engineering Conference and Exposition ASME/IMECE 2009

  20. Mechanical Engineering ME 3720 FLUID MECHANICS

    E-print Network

    Panchagnula, Mahesh

    Mechanical Engineering ME 3720 FLUID MECHANICS Pre-requisite: ME 2330 Co-requisite: ME 3210) to develop an understanding of the physical mechanisms and the mathematical models of fluid mechanics of fluid mechanics problems in engineering practice. The basic principles of fluid mechanics

  1. Proceedings of ASME 2012 Internal Combustion Engine Division Spring Technical Conference May 69, 2012, Torino, Piemonte, Italy

    E-print Network

    Stefanopoulou, Anna

    Proceedings of ASME 2012 Internal Combustion Engine Division Spring Technical Conference ICES 2012 and comparisons with data from a single-cylinder engine indicate that, at high CV, the evolution of combustion but the evo- lution of the combustion phasing is governed by the interactions between engine cycles

  2. Atmospheric fluid bed cogeneration air heater experiment. Task 1.3, ASME Code certification testing

    SciTech Connect

    Bynum, J.E.; Ellis, F.V.; Roberts, B.W.

    1990-02-28

    The AFB Cogeneration Air Heater Experiment is a testing program under contract with the Department of Energy through Westinghouse Electric Corporation to obtain data for designing a coal-fired circulating fluidized bed cogeneration plant producing steam, electricity, and hot air for an applicable industrial customer. The hot air portion of the system involves a fluid bed heat exchanger which gives up heat to air cooled tubes. Clean compressed air enters the tubes at 520F and is heated to 1500F. The proposed material for the heat exchanger tubes is Type 304H Stainless Steel. The AFB unit will be designed by the rules specified in Section I or Section VIII, Division 1 of the ASME Boiler and Pressure Vessel Code which includes tables of maximum allowable stresses for various materials as a function of temperature. For Type 304H Stainless Steel, the allowable stress values in the Code are only given to a maximum temperature of 1500F. To heat air inside the heat exchanger tubes to 1500F, the outside metal temperature will obviously exceed that level. Therefore, the purpose of this subtask is to obtain data required to apply for Code certification of TP 304H SS at metal temperatures up to 1650F. A series of tensile and creep-rupture tests were conducted on Type 304H Stainless Steel bar with the objective of extending the allowable stress tables in the ASME Boiler and Pressure Vessel Code for this material from 1500F to 1650F. Material representing five heats of 3/4-inch diameter bar was procured for which three heats were selected for the test program. Final heat selection was based on chemical analysis, metallographic structure, room-temperature tensile properties, and short-term creep-rupture screening tests.

  3. 1 Copyright 2014 by ASME Proceedings of the ASME 2014 International Design Engineering Technical Conferences &

    E-print Network

    Nawratil, Georg

    OF INVOLUTE-GEAR PAIRS WITH SKEW AXES Giorgio Figliolini Department of Civil & Mechanical Engineering gears with skew axes. In the case at hand, we show that the AS is an orthogonal helicoid whose axis a) lies in the cylindroid and b) is normal to the instant screw axis of one gear with respect to its

  4. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences &

    E-print Network

    Shu, Lily H.

    @mie.utoronto.ca *Corresponding author email Dept. of Mechanical & Industrial Engineering University of Toronto 5 King's College of biomimetic design in the literature. Furthermore, an almost infinite amount of potential analogies in biology is yet to be explored, as biological knowledge is quickly expanding (Rebholz- Schuhmann et al. 2005

  5. 1 Copyright 2009 by ASME Proceedings of the ASME 2009 International Design Engineering Technical Conferences

    E-print Network

    Shu, Lily H.

    University of Toronto L.H. Shu* (shu@mie.utoronto.ca) Dept. of Mechanical & Industrial Engineering University been achieved, there lies an almost infinite amount of potential analogies in biology yet to be explored, as biological knowledge sources are quickly expanding (Rebholz- Schuhmann et al. 2005

  6. 1 Copyright 20xx by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences &

    E-print Network

    Feeny, Brian

    , Quebec, Canada DRAFT-DETC2010-28049 BALANCING ENERGY TO ESTIMATE DAMPING IN A FORCED OSCILLATOR shows a base-excited, dual-damped oscillator with an ideal massless compliant contact is presented WITH COMPLIANT CONTAFCT Jin-Wei Liang Department of Mechanical Engineering Ming Chi University of Technology

  7. Proceedings of DETC2001 2001 ASME Design Engineering Technical Conferences

    E-print Network

    Rand, Richard H.

    as stationary, traveling or rotating. This type of behavior is comparable to various experimen- tal observations made by other investigators on vertically driven fluids or sand. 1 Introduction Parametrically). Three recent works have treated the dynamics of equation (1) with only one spatial dimension x (Rand

  8. Proceedings of FEDSM2010 ASME 2010 Fluids Engineering Summer Meeting

    E-print Network

    Hidrovo, Carlos H.

    utilize heat pipes for managing heat loads. Due to their passive nature, heat pipes are also ideal for compact electronics. However, it is theorized that current heat pipe technology is not capable of handling to resolve the cooling issue associated with heat pipes promptly [4]. Heat Pipe Limitations Since heat pipes

  9. Submitted for Publication to Journal of Fluids Engineering ASME Transactions

    E-print Network

    Aguilar, Guillermo

    Stain (PWS) birthmarks [2]) as well as cosmetic surgery (e.g., hair [3] and tattoo [4] removal cooling (CSC) is an auxiliary procedure to dermatologic laser surgery which consists of pre Dermatological laser surgery is the treatment of choice for vascular lesions (e.g., hemangiomas [1] and Port Wine

  10. Best-paper award winner, ASME Computers in Engineering Conference, 1994. REDUCING SETUP COST BY AUTOMATED GENERATION OF REDESIGN SUGGESTIONS

    E-print Network

    Nau, Dana S.

    of func- tionality, manufacturability, cost and other life-cycle factors. The speed and e cacyBest-paper award winner, ASME Computers in Engineering Conference, 1994. REDUCING SETUP COST BY AUTOMATED GENERATION OF REDESIGN SUGGESTIONS Diganta Das Mechanical Engr. Dept. and Institute for Systems

  11. Proceedings of ASME-FED 2006 2006 ASME Fluids Engineering Summer Conference

    E-print Network

    Smith, Barton L.

    .4:1 in the spanwise direction and 3:1 in the cross-stream direc- tion. Turbulence is managed by a single bank.85 atm) is drawn through the facility by a frequency-controlled centrifugal blower. The inlet contracts 1 of the turbulence management is confirmed through hot wire mea- surements at y = z = 0 (the span-wise and cross

  12. Stirling engine with air working fluid

    DOEpatents

    Corey, John A. (North Troy, NY)

    1985-01-01

    A Stirling engine capable of utilizing air as a working fluid which includes a compact heat exchange module which includes heating tube units, regenerator and cooler positioned about the combustion chamber. This arrangement has the purpose and effect of allowing the construction of an efficient, high-speed, high power-density engine without the use of difficult to seal light gases as working fluids.

  13. 1 Copyright 2014 by ASME Proceedings of the 4th

    E-print Network

    Hu, Hui

    1 Copyright © 2014 by ASME Proceedings of the 4th Joint US- European Fluids Engineering Division and attachment would occur inside each dimple. In comparison with those of a conventional channel flow with flat techniques, such as internal convective cooling and film cooling on the blade exterior, in order to increase

  14. Review and Application of ASME NOG-1 and ASME NUM-1-2000

    NASA Technical Reports Server (NTRS)

    Lytle, Bradford P.; Delgado, H. (Technical Monitor)

    2002-01-01

    The intent of the workshop is to review the application of the ASME Nuclear Crane Standards ASME NOG-1 and ASME NUM-1-2000. The ASME Nuclear Crane standards provide a basis for purchasing overhead handling equipment with enhanced safety features, based upon accepted engineering principles, and including performance and environmental parameters specific to nuclear facilities.

  15. Under Review for Publication in ASME J. Solar Energy Engineering SOL-12-1058 Life Estimation of Pressurized-Air Solar-Thermal Receiver Tubes

    E-print Network

    Cortes, Corinna

    for a Brayton-cycle engine are challenging, and lack a large body of operational data unlike steam plants. WeUnder Review for Publication in ASME J. Solar Energy Engineering SOL-12-1058 Life Estimation estimates showed that the Brayton engine's turbine inlet temperature needs to be at least 1100 K

  16. Using Computers in Fluids Engineering Education

    NASA Technical Reports Server (NTRS)

    Benson, Thomas J.

    1998-01-01

    Three approaches for using computers to improve basic fluids engineering education are presented. The use of computational fluid dynamics solutions to fundamental flow problems is discussed. The use of interactive, highly graphical software which operates on either a modern workstation or personal computer is highlighted. And finally, the development of 'textbooks' and teaching aids which are used and distributed on the World Wide Web is described. Arguments for and against this technology as applied to undergraduate education are also discussed.

  17. Fundamentals of Engineering (FE) Exam Fluid Mechanics Review

    E-print Network

    Provancher, William

    Fundamentals of Engineering (FE) Exam Fluid Mechanics Review Steven Burian Civil & Environmental Engineering March 22, 2013 #12;Morning (Fluid Mechanics) A. Flow measurement B. Fluid properties C. Fluid and mechanical energy balance B. Hydrostatic pressure C. Dimensionless numbers (e.g., Reynolds Number) D. Laminar

  18. Fluid mechanics phenomena in microgravity; ASME Winter Annual Meeting, Anaheim, CA, Nov. 8-13, 1992

    NASA Technical Reports Server (NTRS)

    Siginer, Dennis A. (editor); Weislogel, Mark M. (editor)

    1992-01-01

    This paper is the first in a series of symposia presenting research activity in microgravity fluid mechanics. General topics addressed include two-phase flow and transport phenomena, thermo-capillary flow, and interfacial stability. Papers present mathmatical models of fluid dynamics in the microgravity environment. Applications suggested include space manufacturing and storage of liquids in low gravity.

  19. 1 Copyright 2014 by ASME Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and

    E-print Network

    Shu, Lily H.

    Amanda Chou, L.H. Shu* Dept. of Mechanical and Industrial Engineering University of Toronto, 5 King horizontal surface may result from an enclosure but include a ventilation grill, as with some dehumidifiers such as ventilation, or if on top of heaters, may constitute fire hazards. Yet casual removal of common affordances

  20. Proceedings of the ASME 2012 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Yang, Maria

    -70468 AN APPROACH FOR REVEALED CONSUMER PREFERENCES FOR TECHNOLOGY PRODUCTS: A CASE STUDY OF RESIDENTIAL SOLAR PANELS Heidi Q. Chen Mechanical Engineering Massachusetts Institute of Technology Cambridge of Technology Cambridge, Massachusetts 02139 Email: tomonori@mit.edu Maria C. Yang Mechanical Engineering

  1. Proceedings of the ASME 2013 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Papalambros, Panos

    among driving modes, namely, the power distribution schemes in their planetary gear (PG) transmissions" of the planetary gear (PG) transmis- sion determine the distribution of power among engine, motors and output shaft

  2. Proceedings of the ASME 2010 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Feeny, Brian

    -48219 IN-PLANE NONLINEAR DYNAMICS OF WIND TURBINE BLADES Venkatanarayanan Ramakrishnan & Brian F. Feeny Dynamics Systems Laboratory: Vibration Research Department of Mechanical Engineering Michigan State- ential equation includes nonlinear terms due to nonlinear cur- vature and nonlinear foreshortening

  3. 1 Copyright 2004 by ASME Proceedings of DETC'04

    E-print Network

    Herrmann, Jeffrey W.

    engineering, life cycle considerations. INTRODUCTION Developing successful new products requires the ability by people on the manufacturing line and those servicing the product. The knowledge compartmentalization1 Copyright © 2004 by ASME Proceedings of DETC'04 ASME 2004 Design Engineering Technical

  4. Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Papalambros, Panos

    consumer behavior. We assume consumers seek to maximize their expected utility, and the demand (or choice and Information in Engineering Conference IDETC/CIE 2009 August 30-September 2, 2009, San Diego, California, USA of methods for examin- ing econometric models of consumer demand for their suitability in product design

  5. Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Papalambros, Panos

    application to con- sumer purchase behavior: How can we obtain high prediction accuracy in a consumer and Information in Engineering Conference IDETC/CIE 2014 August 17-20, 2014, New York, United States DETC2014 improvement in prediction accuracy on a binary preference task by properly transforming the original consumer

  6. The ASM Ground Model Method as a Foundation of Requirements Engineering

    E-print Network

    Börger, Egon

    . 1 This does not preclude the automation of key tasks of application design, once such tasks have been identified as recurring patterns. The situation can be compared to the automization of proof concepts ASMs are particularly well suited as a scientific foundation for satis- factory ground models

  7. H. J. Sutherland, "Frequency Domain Analysis of the Fatigue Loads on Typical Wind Turbine Blades," J. of Solar Energy Engineering, Transactions of ASME, Vol. 118, November, 1996,

    E-print Network

    ," J. of Solar Energy Engineering, Transactions of ASME, Vol. 118, November, 1996, pp. 204H. J. Sutherland, "Frequency Domain Analysis of the Fatigue Loads on Typical Wind Turbine Blades-211. FREQUENCY DOMAIN ANALYSIS OF THE FATIGUE LOADS ON TYPICAL WIND TURBINE BLADES Herbert J. Sutherland Wind

  8. 78 FR 37848 - ASME Code Cases Not Approved for Use

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-24

    ...DG-1233, ``ASME Code Cases not Approved for Use.'' This regulatory guide lists the American Society of Mechanical Engineers (ASME) Code Cases that the NRC has determined not to be acceptable for use on a generic basis. DATES:...

  9. Last Name First Name 17th International Conference on Coastal Engineering Sydney 23-28 March

    E-print Network

    to Theoretical Fluid Mechanics Lighthill James 42 An Introduction to Coastal Geomorphology Pethick John 43 Regression Analysis Draper N. 52 ASME Steam Tables 1967 53 Automated Coastal Engineering System User's Gude

  10. Daniel Attinger Iowa State University Department of Mechanical Engineering, 2025 Black, Ames, Iowa 50011-2161

    E-print Network

    Attinger, Daniel

    Annual Review in Fluid Mechanics Journal for Micromechanics and Microengineering Applied Physics Letters IMECE conferences Journal of Fluid Mechanics ASME Journal of Fluid Engineering Journal of Forensic6105 Transport Phenomena at the Microscale Fall 2010 MECE E3100 Introduction to Mechanics of Fluids

  11. Tracing Injection Fluids in Engineered Geothermal Systems

    NASA Astrophysics Data System (ADS)

    Rose, P. E.; Leecaster, K.; Mella, M.; Ayling, B.; Bartl, M. H.

    2011-12-01

    The reinjection of produced fluids is crucial to the effective management of geothermal reservoirs, since it provides a mechanism for maintaining reservoir pressures while allowing for the disposal of a toxic byproduct. Tracers are essential to the proper location of injection wells since they are the only known tool for reliably characterizing the flow patterns of recirculated fluids. If injection wells are placed too close to production wells, then reinjected fluids do not have sufficient residence time to extract heat from the reservoir and premature thermal breakthrough results. If injection wells are placed too far away, then the reservoir risks unacceptable pressure loss. Several thermally stable compounds from a family of very detectable fluorescent organic compounds (the naphthalene sulfonates) were characterized and found to be effective for use as geothermal tracers. Through batch-autoclave reactions, their Arrhenius pseudo-first-order decay-rate constants were determined. An analytical method was developed that allows for the laboratory determination of concentrations in the low parts-per-trillion range. Field experiments in numerous geothermal reservoirs throughout the world have confirmed the laboratory findings. Whereas conservative tracers such as the naphthalene sulfonates are effective tools for indicating interwell flow patterns and for measuring reservoir pore volumes, 'reactive' tracers can be used to constrain fracture surface area, which is the effective area for heat extraction. This is especially important for engineered geothermal system (EGS) wells, since reactive tracers can be used to measure fracture surface area immediately after drilling and while the well stimulation equipment is still on site. The reactive properties of these tracers that can be exploited to constrain fracture surface area are reversible sorption, contrasting diffusivity, and thermal decay. Laboratory batch- and flow-reactor experiments in combination with numerical simulation studies have served to identify candidate compounds for use as reactive tracers. An emerging class of materials that show promise for use as geothermal and EGS tracers are colloidal nanocrystals (quantum dots). These are semiconductor particles that fluoresce as a function of particle size. Preliminary laboratory experimentation has demonstrated that these thermally stable, water-soluble particles can serve as conservative tracers for geothermal applications. Likewise, they show promise as potential reactive tracers, since their surfaces can be modified to be reversibly sorptive and their diameters are sufficiently large to allow for contrasts in diffusivity with solute tracers.

  12. Fluid thrust control system. [for liquid propellant rocket engines

    NASA Technical Reports Server (NTRS)

    Howell, W. L.; Jansen, H. B.; Lehmann, E. N. (inventors)

    1968-01-01

    A pure fluid thrust control system is described for a pump-fed, regeneratively cooled liquid propellant rocket engine. A proportional fluid amplifier and a bistable fluid amplifier control overshoot in the starting of the engine and take it to a predetermined thrust. An ejector type pump is provided in the line between the liquid hydrogen rocket nozzle heat exchanger and the turbine driving the fuel pump to aid in bringing the fluid at this point back into the regular system when it is not bypassed. The thrust control system is intended to function in environments too severe for mechanical controls.

  13. 78 FR 37848 - ASME Code Cases Not Approved for Use

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-24

    ... COMMISSION ASME Code Cases Not Approved for Use AGENCY: Nuclear Regulatory Commission. ACTION: Draft... public comment draft regulatory guide (DG), DG-1233, ``ASME Code Cases not Approved for Use.'' This regulatory guide lists the American Society of Mechanical Engineers (ASME) Code Cases that the NRC...

  14. Proceedings of IMECE 2003 2003 ASME International Mechanical Engineering Congress & Exposition

    E-print Network

    Barth, Eric J.

    applications draw energy from an essentially limitless reservoir of power (i.e., from a power plant). In many the resistance to fluid flow. Therefore, ideally, a fluid powered system need only draw the minimum required reservoir to collect the exhaust air rather than being vented to atmosphere to be used as an auxiliary low

  15. ADDRESSING ENVIRONMENTAL ENGINEERING CHALLENGES WITH COMPUTATIONAL FLUID DYNAMICS

    EPA Science Inventory

    This paper discusses the status and application of Computational Fluid Dynamics )CFD) models to address environmental engineering challenges for more detailed understanding of air pollutant source emissions, atmospheric dispersion and resulting human exposure. CFD simulations ...

  16. 1 Copyright 2004 by ASME Proceedings of IMECE 2004

    E-print Network

    Barth, Eric J.

    -stroke, two-stroke, and turbofan engines. These engines provide useful power and energy densities, but do1 Copyright © 2004 by ASME Proceedings of IMECE 2004 2004 ASME International Mechanical Engineering Li Eric J. Barth Kevin B. Fite Michael Goldfarb Department of Mechanical Engineering Vanderbilt

  17. Proceedings of IMECE 2005 2005 ASME International Mechanical Engineering Congress Exposition

    E-print Network

    Bahrami, Majid

    = convection heat transfer coefficient, W/m2 K k = fluid thermal conductivity, W/mK L = sampling length, m mabs-11, 2005, Orlando, FL, USA IMECE2005-79902 CONVECTIVE HEAT TRANSFER OF LAMINAR, SINGLE-PHASE FLOW IN RANDOMLY ROUGH MICROTUBES M. Bahrami1 , M. M. Yovanovich2 , and J. R. Culham3 Microelectronics Heat

  18. 1 Copyright 2002 by ASME Proceedings of DETC'02

    E-print Network

    Lewis, Kemper E.

    Design, Genetic Algorithms 1. INTRODUCTION In the design of today's increasingly complex engineering1 Copyright © 2002 by ASME Proceedings of DETC'02 ASME 2002 Design Engineering Technical Conferences and Computers and Information in Engineering Conference Montreal, Canada, September 29-October 2

  19. Lehigh Valley Chapter, ASM International ASM Materials Camp -Lehigh Valley for High School Students

    E-print Network

    Gilchrist, James F.

    Lehigh Valley Chapter, ASM International ASM Materials Camp - Lehigh Valley for High School in helping talented high school sophomores and juniors (next year's juniors and seniors) learn more about by faculty members in the Materials Science and Engineering Department. The high school students we've had

  20. Proceedings of IMECE 2002 2002 ASME International Mechanical Engineering Congress and Exposition

    E-print Network

    Papalambros, Panos

    performed for both propulsion systems. Lead-acid batteries only were considered for the hybrid char- acteristics. The latter are predicted by analytical and simulation models developed appropriately. This article is an extension to previous work: the engine is now included at the bottom level, several battery

  1. Proceedings of DETC'03 ASME 2003 Design Engineering Technical Conferences and

    E-print Network

    Herrmann, Jeffrey W.

    , design for produc- tion, product design, concurrent engineering INTRODUCTION Successful new product supply chain to production line. The performance of these systems is disregarded because it is considered system performance. For example, does the production line have enough capacity to achieve the desired

  2. The 6th ASME-JSME Thermal Engineering Joint Conference Mar 16-20, 2003

    E-print Network

    Yuen, Walter W.

    front position and flame spreading velocity of the ASTM LIFT test are generated The heat flux from MODEL ON FLAME SPREADING OVER MATERIALS C. W. LEUNG Department of Building Services Engineering: flame spreading, radiation, LIFT test, cone calorimeter ABSTRACT Flame spreading is a very important

  3. CorrespondingAuthor:RajatMittal;mittal@jhu.edu To Appear in ASME Journal of Biomechanical Engineering

    E-print Network

    Mittal, Rajat

    Washington University 2Mechanical Engineering, Johns Hopkins University Keywords: arm pull, freestyle movements of the swimmers' arms (sculling) in freestyle (Brown and Counsilman (1971), Counsilman (1971 and suggested that drag forces dominated thrust in all swimming strokes except for in the breaststroke. Ito et

  4. Proceedings of DETC'02 ASME 2002 Design Engineering Technical Conferences and Computers and

    E-print Network

    Saitou, Kazuhiro "Kazu"

    -mail:{nlyu,kazu}@umich.edu corresponding author ABSTRACT This paper presents a method for systematically decomposes product geometry distortion of the front door panel geometry, where spot-welded joints are modeled as torsional springs. First, the structure can be built in one piece. To build complex structures in one piece, however, engineers need

  5. Proceedings of IMECE 2003 2003 ASME International Mechanical Engineering Congress and RD Expo

    E-print Network

    Bahrami, Majid

    conductance, W/m2 K Hmic = microhardness, GPa H0 = c1 (0 /m)c2 , GPa k = thermal conductivity, W/mK L = length steel 1Ph.D. Candidate, Department of Mechanical Engineering. 2Associate Professor, Director

  6. MSME with depth in Fluid Mechanics The primary areas of fluid mechanics research at Michigan State University's Mechanical Engineering

    E-print Network

    Feeny, Brian

    MSME with depth in Fluid Mechanics The primary areas of fluid mechanics research at Michigan State Mechanics The MSME degree program for fluid mechanics is based around two graduate-level foundation courses offered through the Department of Mechanical Engineering (ME). These courses are ME 830 Fluid Mechanics I

  7. MSME with depth in Fluid Mechanics The primary areas of fluid mechanics research at Michigan State University's Mechanical Engineering

    E-print Network

    Feeny, Brian

    June 2006 MSME with depth in Fluid Mechanics The primary areas of fluid mechanics research Mechanics The MSME degree program for fluid mechanics is based around two graduate-level foundation courses offered through the Department of Mechanical Engineering (ME). These courses are ME 830 Fluid Mechanics I

  8. Proceedings of the 5th Joint ASME/JSME Fluids Engineering Conference

    E-print Network

    is the fastest growing source of energy in the world today, with an average growth rate for the past 10 years of nearly 30% per year [1]. Although the contribution of wind to the world electrical energy consumption-generated COE is currently competitive only at the higher-wind sites that tend to be far from population centers

  9. Proceedings of FEDSM'02 2002 ASME Fluids Engineering Division Summer Meeting

    E-print Network

    Daripa, Prabir

    µg = viscosity of the gas phase µl = viscosity of the liquid phase = kinematic viscosity Subscripts b = break c = characteristic l = liquid g = gas r = first derivative with respect to r rr = second liquid films can be produced on smooth solid surfaces either by the action of gravity on station- ary

  10. Proceedings of FEDSM2007 2007 5th ASME-JSME Fluids Engineering Conference

    E-print Network

    Smith, Barton L.

    connection. The total configuration along with the case has an approximate gross weight of 390 lbs and works to run on minimal power and be light weight. The final cluster design was based on the Intel R Quad- Core

  11. Proceedings of HTFED04 2004 ASME Heat Transfer/ Fluids Engineering Summer Conference

    E-print Network

    McDonough, James M.

    thermal wave speed, ms-1 G Phonon-electron coupling factor, Wm-3 K-1 J Laser fluence, Jm-2 S EnergyB Boltzmann constant Lx,Ly Width and height of the film, m ne Number density of free electrons per unit volume is the effective mean free path l divided by the phonon speed (Vs, speed of sound). In the absence of relaxation

  12. Liquid rocket engine fluid-cooled combustion chambers

    NASA Technical Reports Server (NTRS)

    1972-01-01

    A monograph on the design and development of fluid cooled combustion chambers for liquid propellant rocket engines is presented. The subjects discussed are (1) regenerative cooling, (2) transpiration cooling, (3) film cooling, (4) structural analysis, (5) chamber reinforcement, and (6) operational problems.

  13. Introduction ASMs contractes

    E-print Network

    Marckert, Jean-François

    le nombre de -1 Florent Le Gac, LaBRI 27 Janvier 2011 Florent Le Gac, LaBRI Comptage d'ASMs selon le Perspectives et r´esum´e Florent Le Gac, LaBRI Comptage d'ASMs selon le nombre de -1 #12;Introduction ASMs'ASMs avec k -1 4 Perspectives et r´esum´e Florent Le Gac, LaBRI Comptage d'ASMs selon le nombre de -1 #12

  14. 1 Copyright #### by ASME Proceedings of IMECE'04

    E-print Network

    Espinosa, Horacio D.

    ), the electrostatic force is balanced by the elastic force from the deflection of the CNT cantilever. The CNT1 Copyright © #### by ASME Proceedings of IMECE'04 2004 ASME International Mechanical Engineering DEVICE: CONCEPT AND MODELING Changhong Ke and Horacio D. Espinosa * Department of Mechanical Engineering

  15. 1 Copyright #### by ASME Proceedings of DETC `01

    E-print Network

    Saitou, Kazuhiro "Kazu"

    the new product without making significant changes to a product line and fixturing, is not very high1 Copyright © #### by ASME Proceedings of DETC `01 ASME 2001 Design Engineering Technical Conferences and Computers and Information in Engineering Conference Pittsburgh, Pennsylvania, September 9

  16. 1 Copyright 2001 by ASME Proceedings of DETC'01

    E-print Network

    Lewis, Kemper E.

    1 Copyright © 2001 by ASME Proceedings of DETC'01 ASME 2001 Design Engineering Technical Conferences and Computers and Information in Engineering Conference Pittsburgh, PA, September 9-12, 2001 DETC@eng.buffalo.edu ABSTRACT In this paper we present an approach for increasing the efficiency of a hybrid Genetic

  17. 1 Copyright 2001 by ASME Proceedings of DETC'01

    E-print Network

    Lewis, Kemper E.

    1 Copyright © 2001 by ASME Proceedings of DETC'01 ASME 2001 Design Engineering Technical Conferences and Computers and Information in Engineering Conference Pittsburgh, PA, September 9-12, 2001 DETC2001/DAC-21094 EFFECTIVE GENERATION OF PARETO SETS USING GENETIC PROGRAMMING John Eddy Graduate

  18. 1 Copyright 2001 by ASME Proceedings of DETC'01

    E-print Network

    Shu, Lily H.

    describes efforts towards generalizing biomimetic concept generation in engineering design. Biomimetic1 Copyright © 2001 by ASME Proceedings of DETC'01 ASME 2001 Design Engineering Technical TOWARDS BIOMIMETIC CONCEPT GENERATION V. Vakili, L.H. Shu* Life-Cycle Design Laboratory Dept

  19. Introduction to Computational Fluid Dynamics 424512 E #5-rz maj 2015 bo Akademi Univ -Chemical Engineering

    E-print Network

    Zevenhoven, Ron

    ://users.abo.fi/rzevenho/kursRZ.html#FPS Introduction to Computational Fluid Dynamics 424512 E #5- rz maj 2015 Åbo Akademi Univ - Chemical Engineering - Chemical Engineering Thermal and Flow Engineering - Biskopsgatan 8, 20500 Turku 3/70 Fluid flow around 2015 Åbo Akademi Univ - Chemical Engineering Thermal and Flow Engineering - Biskopsgatan 8, 20500 Turku

  20. Proceedings of the 2008 ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference

    E-print Network

    Michalek, Jeremy J.

    structure. However, when consumer preferences are heterogeneous, the behavior of competitors and retailers and Information in Engineering Conference IDETC/CIE 2008 August 3-6, 2008, New York City, New York, USA DETC2008 profit predicted by consumer choice simulations. These approaches treat competitors and retailers

  1. Fluid geochemistry applications in reservoir engineering (vapour-dominated systems)

    SciTech Connect

    D'Amore, F.; Celati, R.; Calore, C.

    1982-01-01

    Fluid geochemistry has proved to be a valid tool for analyzing the processes occurring in geothermal reservoirs. The major effort is now invested in developing conceptual and quantitative models for chemical and physical processes that could produce the observed variations in fluid composition. These models are an effective complement to the classical methods of reservoir engineering in field development and exploitation. The fields in which the geochemical methods seem to be most effective are listed. Previous work in the field, as well as current development of research conducted on gas composition, is discussed and reviewed.

  2. Circulating fluid bed technology within Combustion Engineering Inc.

    SciTech Connect

    Treff, P.J.; Maitland, J.E.

    1995-12-31

    As the worldwide trend for more flexible, cost-effective CFB technology continues as an alternative to pulverized coal and combined cycle steam generation, Combustion Engineering Inc. has drawn on original scientific work and the operating history of numerous BFBs and CFBs worldwide as reported in publicly available literature to introduce many product enhancements for its next generation of circulating fluid bed boilers. The issues of in-furnace surface versus external fluid bed heat exchanger applicability, cyclone and loop seal design, refractory system design and operating requirements, and the suitability of regenerative air heaters for CFB applications will be among the topics discussed in this paper as Combustion Engineering Inc. answers the challenge to continuously advance CFB steam generation.

  3. Introduction to Computational Fluid Dynamics 424512 E #2 -rz maj 2015 bo Akademi Univ -Chemical Engineering

    E-print Network

    Zevenhoven, Ron

    .zevenhoven@abo.fi Introduction to Computational Fluid Dynamics 424512 E #2 - rz maj 2015 Åbo Akademi Univ - Chemical Engineering Dynamics 424512 E #2 - rz maj 2015 Åbo Akademi Univ - Chemical Engineering Thermal and Flow Engineering Introduction to Computational Fluid Dynamics 424512 E #2 - rz maj 2015 Åbo Akademi Univ - Chemical Engineering

  4. 1 Copyright 2001 by ASME Planar Cable-Direct-Driven Robots,

    E-print Network

    Williams II, Robert L.

    2001/DAC-21145 Proceedings of the 2001 ASME Design Technical Conferences 27th Design Automation://www.ent.ohiou.edu/~bobw #12;2 Copyright © 2001 by ASME Proceedings of DETC2001 2001 ASME Design Engineering Technical Padova, ITALY ABSTRACT A hybrid parallel/serial manipulator architecture is introduced where

  5. ASME Code Efforts Supporting HTGRs

    SciTech Connect

    D.K. Morton

    2012-09-01

    In 1999, an international collaborative initiative for the development of advanced (Generation IV) reactors was started. The idea behind this effort was to bring nuclear energy closer to the needs of sustainability, to increase proliferation resistance, and to support concepts able to produce energy (both electricity and process heat) at competitive costs. The U.S. Department of Energy has supported this effort by pursuing the development of the Next Generation Nuclear Plant, a high temperature gas-cooled reactor. This support has included research and development of pertinent data, initial regulatory discussions, and engineering support of various codes and standards development. This report discusses the various applicable American Society of Mechanical Engineers (ASME) codes and standards that are being developed to support these high temperature gascooled reactors during construction and operation. ASME is aggressively pursuing these codes and standards to support an international effort to build the next generation of advanced reactors so that all can benefit.

  6. ASME Code Efforts Supporting HTGRs

    SciTech Connect

    D.K. Morton

    2010-09-01

    In 1999, an international collaborative initiative for the development of advanced (Generation IV) reactors was started. The idea behind this effort was to bring nuclear energy closer to the needs of sustainability, to increase proliferation resistance, and to support concepts able to produce energy (both electricity and process heat) at competitive costs. The U.S. Department of Energy has supported this effort by pursuing the development of the Next Generation Nuclear Plant, a high temperature gas-cooled reactor. This support has included research and development of pertinent data, initial regulatory discussions, and engineering support of various codes and standards development. This report discusses the various applicable American Society of Mechanical Engineers (ASME) codes and standards that are being developed to support these high temperature gascooled reactors during construction and operation. ASME is aggressively pursuing these codes and standards to support an international effort to build the next generation of advanced reactors so that all can benefit.

  7. ASME Code Efforts Supporting HTGRs

    SciTech Connect

    D.K. Morton

    2011-09-01

    In 1999, an international collaborative initiative for the development of advanced (Generation IV) reactors was started. The idea behind this effort was to bring nuclear energy closer to the needs of sustainability, to increase proliferation resistance, and to support concepts able to produce energy (both electricity and process heat) at competitive costs. The U.S. Department of Energy has supported this effort by pursuing the development of the Next Generation Nuclear Plant, a high temperature gas-cooled reactor. This support has included research and development of pertinent data, initial regulatory discussions, and engineering support of various codes and standards development. This report discusses the various applicable American Society of Mechanical Engineers (ASME) codes and standards that are being developed to support these high temperature gascooled reactors during construction and operation. ASME is aggressively pursuing these codes and standards to support an international effort to build the next generation of advanced reactors so that all can benefit.

  8. 1 Copyright 2003 by ASME Proceedings of DETC2003

    E-print Network

    Williams II, Robert L.

    1 Copyright © 2003 by ASME Proceedings of DETC2003 2003 ASME Design Engineering Technical. INTRODUCTION Cable-direct-driven robots (CDDRs) are a type of parallel manipulator wherein the end instead of hydraulic-cylinder legs. In this system, gravity ensures that cable tension is maintained

  9. 1 Copyright 1998 by ASME Proceedings of DETC'98

    E-print Network

    Shu, Lily H.

    Requirements are assigned to different Basic Functional Requirements; 5) Basic Design Matrix, Single Quality Design Matrix and Cross Quality Design Matrix are generated to study and evaluate design concepts from1 Copyright © 1998 by ASME Proceedings of DETC'98 1998 ASME Design Engineering Technical

  10. 1 Copyright 2004 by ASME Proceedings of DETC'04

    E-print Network

    Sobek II, Durward K.

    is independently assessed for client satisfaction and design quality. We use factor analysis to group common, Design Process Productivity, Design Quality, Design Process Model. INTRODUCTION Product development1 Copyright © 2004 by ASME Proceedings of DETC'04 ASME 2004 Design Engineering Technical

  11. 1 Copyright 2003 by ASME Proceedings of DETC 2003

    E-print Network

    Yang, Maria

    There are numerous qualitative factors in the design process that can contribute to a design's success or failure, "quantity yields quality." This practice has been widely adopted in product design and development1 Copyright © 2003 by ASME Proceedings of DETC 2003 2003 ASME Design Engineering Technical

  12. 1 Copyright 2007 by ASME Proceedings of HT2007

    E-print Network

    Maruyama, Shigeo

    1 Copyright © 2007 by ASME Proceedings of HT2007 2007 ASME-JSME Thermal Engineering Summer Heat-Aligned Single-Walled Carbon Nanotubes (VASWNT) has been studied. Observations through Scanning Electron Microscopy (SEM) showed a clear metal-dependence of the deposition layer structure on top of the VASWNT

  13. 46 CFR 53.01-3 - Adoption of section IV of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...Adoption of section IV of the ASME Boiler and Pressure Vessel Code. 53...CONTINUED) MARINE ENGINEERING HEATING BOILERS General Requirements § 53.01-3 Adoption of section IV of the ASME Boiler and Pressure Vessel Code....

  14. 46 CFR 52.01-2 - Adoption of section I of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Adoption of section I of the ASME Boiler and Pressure Vessel Code. 52...CONTINUED) MARINE ENGINEERING POWER BOILERS General Requirements § 52.01-2 Adoption of section I of the ASME Boiler and Pressure Vessel Code....

  15. 46 CFR 53.01-3 - Adoption of section IV of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...Adoption of section IV of the ASME Boiler and Pressure Vessel Code. 53...CONTINUED) MARINE ENGINEERING HEATING BOILERS General Requirements § 53.01-3 Adoption of section IV of the ASME Boiler and Pressure Vessel Code....

  16. 46 CFR 53.01-3 - Adoption of section IV of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Adoption of section IV of the ASME Boiler and Pressure Vessel Code. 53...CONTINUED) MARINE ENGINEERING HEATING BOILERS General Requirements § 53.01-3 Adoption of section IV of the ASME Boiler and Pressure Vessel Code....

  17. 46 CFR 52.01-2 - Adoption of section I of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... Adoption of section I of the ASME Boiler and Pressure Vessel Code. 52...CONTINUED) MARINE ENGINEERING POWER BOILERS General Requirements § 52.01-2 Adoption of section I of the ASME Boiler and Pressure Vessel Code....

  18. 46 CFR 53.01-3 - Adoption of section IV of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...Adoption of section IV of the ASME Boiler and Pressure Vessel Code. 53...CONTINUED) MARINE ENGINEERING HEATING BOILERS General Requirements § 53.01-3 Adoption of section IV of the ASME Boiler and Pressure Vessel Code....

  19. 46 CFR 53.01-3 - Adoption of section IV of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Adoption of section IV of the ASME Boiler and Pressure Vessel Code. 53...CONTINUED) MARINE ENGINEERING HEATING BOILERS General Requirements § 53.01-3 Adoption of section IV of the ASME Boiler and Pressure Vessel Code....

  20. 46 CFR 52.01-2 - Adoption of section I of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... Adoption of section I of the ASME Boiler and Pressure Vessel Code. 52...CONTINUED) MARINE ENGINEERING POWER BOILERS General Requirements § 52.01-2 Adoption of section I of the ASME Boiler and Pressure Vessel Code....

  1. 76 FR 11191 - Hazardous Materials: Adoption of ASME Code Section XII and the National Board Inspection Code

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-01

    ...Society of Mechanical Engineers' (ASME) Boiler and Pressure Vessel Code, Section XII (2010 Edition) and the National Board of Boiler and Pressure Vessel Inspectors' National...2010 (ANPRM; 75 FR 80765). The ASME Boiler and Pressure Vessel Code, Section...

  2. 46 CFR 52.01-2 - Adoption of section I of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Adoption of section I of the ASME Boiler and Pressure Vessel Code. 52...CONTINUED) MARINE ENGINEERING POWER BOILERS General Requirements § 52.01-2 Adoption of section I of the ASME Boiler and Pressure Vessel Code....

  3. 46 CFR 52.01-2 - Adoption of section I of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Adoption of section I of the ASME Boiler and Pressure Vessel Code. 52...CONTINUED) MARINE ENGINEERING POWER BOILERS General Requirements § 52.01-2 Adoption of section I of the ASME Boiler and Pressure Vessel Code....

  4. Washington State University Vancouver Mech 303 Fluid Mechanics Mechanical Engineering Fall 2013 Syllabus

    E-print Network

    Washington State University Vancouver Mech 303 Fluid Mechanics Mechanical Engineering Fall 2013 Syllabus 1 Fluid Mechanics Course: Mech 303, Fluid Mechanics, 3 Credits Prerequisite: Dynamics (Mech 212: VECS 105 Textbook: Fundamentals of Fluid Mechanics, 7 th Edition By Munson, Okiishi, Huebsch

  5. 1 Copyright 2006 by ASME Proceedings of IDETC/CIE 2006

    E-print Network

    Chen, Wei

    the design perspective, a good model is considered as the one that can provide the discrimination (good1 Copyright © 2006 by ASME Proceedings of IDETC/CIE 2006 ASME 2006 International Design Engineering MODELS IN ENGINEERING DESIGN Wei Chen1 , Ying Xiong Department of Mechanical Engineering Northwestern

  6. Investigations to determine whether Section XI of the ASME (American Society of Mechanical Engineers) Boiler and Pressure Vessel Code should include PLEX (plant life extension) baseline inspection guidance

    SciTech Connect

    Bustard, L.D.

    1988-01-01

    A plant life extension (PLEX) issue repeatedly mentioned is whether special PLEX supplemental inspection requirements should be added to Section XI of the ASME Boiler and Pressure Vessel Code. To assist the ASME answer this question, the DOE Technology Management Center performed an industry survey to assess whether there was a technical consensus regarding the desirability and scope of a supplemental PLEX baseline inspection. This survey demonstrated the lack of an initial industry consensus. In response to the survey results, ASME has formed a task group to investigate various PLEX supplemental inspection strategies and to assess their value and liabilities. The results of the survey and initial task group activities are reviewed.

  7. Faculty of Engineering/LTH General syllabus for third-cycle studies in Fluid Mechanics

    E-print Network

    Faculty of Engineering/LTH General syllabus for third-cycle studies in Fluid Mechanics TEMMVFST amended 10 March 2014 (reg. no U 2014/214). 1. Subject description Fluid Mechanics includes theoretical (LIF), etc. Successful research within Fluid Mechanics requires good understanding of fundamental

  8. Centre Hydraulic Power Supply Unit University of Saskatchewan -Mechanical Engineering Fluid Power and Controls

    E-print Network

    Saskatchewan, University of

    Centre Hydraulic Power Supply Unit University of Saskatchewan - Mechanical Engineering ­ Fluid Power and Controls ID: FP0003 Rev: 001 Date: May 31, 2010 Page: 1 of 7 Centre Hydraulic Power Supply;Centre Hydraulic Power Supply Unit University of Saskatchewan - Mechanical Engineering ­ Fluid Power

  9. ENGINEERING Professional Organizations

    E-print Network

    Acton, Scott

    ENGINEERING Professional Organizations: National Society of Professional Engineers (NSPE) Virginia Society of Professional Engineers (VSPE) American Society of Civil Engineers (ASCE) American Society of Mechanical Engineers (ASME) Institute of Electrical and Electronics Engineers (IEEE) American Institute

  10. 1 Copyright 2009 by ASME Proceedings of ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting and 8th

    E-print Network

    Bahrami, Majid

    utilized in applications such as electronics cooling, aerospace, MEMS, medical and biomedical devices [1. Micro-porous channels also have potential applications in filtration, detection of particles, and #12

  11. 1 Copyright 2010 by ASME Proceedings of ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting and 8th

    E-print Network

    Bahrami, Majid

    -plane permeability of gas diffusion layers (GDLs) of proton exchange membrane fuel cells. In this approach-plane permeability of GDL as a function of porosity and the fiber diameter. Keywords: PEM fuel cell, In-plane gas of the GDL. For example, the gas permeability reduces as a result of the cell compression while the thermal

  12. ASME Material Challenges for Advanced Reactor Concepts

    SciTech Connect

    Piyush Sabharwall; Ali Siahpush

    2013-07-01

    This study presents the material Challenges associated with Advanced Reactor Concept (ARC) such as the Advanced High Temperature Reactor (AHTR). ACR are the next generation concepts focusing on power production and providing thermal energy for industrial applications. The efficient transfer of energy for industrial applications depends on the ability to incorporate cost-effective heat exchangers between the nuclear heat transport system and industrial process heat transport system. The heat exchanger required for AHTR is subjected to a unique set of conditions that bring with them several design challenges not encountered in standard heat exchangers. The corrosive molten salts, especially at higher temperatures, require materials throughout the system to avoid corrosion, and adverse high-temperature effects such as creep. Given the very high steam generator pressure of the supercritical steam cycle, it is anticipated that water tube and molten salt shell steam generators heat exchanger will be used. In this paper, the ASME Section III and the American Society of Mechanical Engineers (ASME) Section VIII requirements (acceptance criteria) are discussed. Also, the ASME material acceptance criteria (ASME Section II, Part D) for high temperature environment are presented. Finally, lack of ASME acceptance criteria for thermal design and analysis are discussed.

  13. 1 Copyright 2005 by ASME Proceedings of IDETC/CIE 2005

    E-print Network

    Saitou, Kazuhiro "Kazu"

    1 Copyright © 2005 by ASME Proceedings of IDETC/CIE 2005 ASME International Design Engineering Technical Conferences & Computers and Information in Engineering Conference September 24-28, 2005, Long AND A CO-EVOLUTIONARY GENETIC ALGORITHM Karim Hamza and Kazuhiro Saitou§ Department of Mechanical

  14. Proceedings of the ASME 2011 International Mechanical Engineering Congress & Exposition November 11-17, 2011, Denver, Colorado, USA

    E-print Network

    Camci, Cengiz

    block structured/body fitted grid, a state of the art tran- sitional flow implementation, and realistic-P01 )/(0.5V2 x1 ). CPt Total pressure coefficient; (P02 -P01 )/(0.5U2 m). k Turbulence kinetic energy Shear stress transport. TKE Turbulence kinetic energy. INTRODUCTION The fluid flow through a turbine

  15. Computational fluid dynamic design of rocket engine pump components

    NASA Technical Reports Server (NTRS)

    Chen, Wei-Chung; Prueger, George H.; Chan, Daniel C.; Eastland, Anthony H.

    1992-01-01

    Integration of computational fluid dynamics (CFD) for design and analysis of turbomachinery components is needed as the requirements of pump performance and reliability become more stringent for the new generation of rocket engine. A fast grid generator, designed specially for centrifugal pump impeller, which allows a turbomachinery designer to use CFD to optimize the component design will be presented. The CFD grid is directly generated from the impeller blade G-H blade coordinates. The grid points are first generated on the meridional plane with the desired clustering near the end walls. This is followed by the marching of grid points from the pressure side of one blade to the suction side of a neighboring blade. This fast grid generator has been used to optimize the consortium pump impeller design. A grid dependency study has been conducted for the consortium pump impeller. Two different grid sizes, one with 10,000 grid points and one with 80,000 grid points were used for the grid dependency study. The effects of grid resolution on the turnaround time, including the grid generation and completion of the CFD analysis, is discussed. The impeller overall mass average performance is compared for different designs. Optimum design is achieved through systematic change of the design parameters. In conclusion, it is demonstrated that CFD can be effectively used not only for flow analysis but also for design and optimization of turbomachinery components.

  16. 1 Copyright 2014 by ASME FLAMMABLE LIQUID FIRE CONSEQUENCE MODELING

    E-print Network

    Barkan, Christopher P.L.

    1 Copyright © 2014 by ASME FLAMMABLE LIQUID FIRE CONSEQUENCE MODELING Jesus Aguilar Serrano, Mohd Rapik Saat, Ph.D. Rail Transportation and Engineer Center - RailTEC Department of Civil and Environmental Engineering University of Illinois at Urbana-Champaign Newmark Civil Engineering Laboratory 205 N

  17. Proceedings of ASME 2011 5th International Conference on Energy Sustainability & 9th Fuel Cell Science, Engineering

    E-print Network

    Bahrami, Majid

    -ION BATTERY PACKS FOR HYBRID AND ELECTRIC VEHICLES Peyman Taheri Mechatronic Systems Engineering School-ion) batteries are favored in hybrid-electric vehicles and electric vehicles for their outstanding power char electrical contact resistance EV electric vehicle F force [N] HEV hybrid-electric vehicle I electrical

  18. Testing of the Multi-Fluid Evaporator Engineering Development Unit

    NASA Technical Reports Server (NTRS)

    Quinn, Gregory; O'Connor, Ed; Riga, Ken; Anderson, Molly; Westheimer, David

    2007-01-01

    Hamilton Sundstrand is under contract with the NASA Johnson Space Center to develop a scalable, evaporative heat rejection system called the Multi-Fluid Evaporator (MFE). It is being designed to support the Orion Crew Module and to support future Constellation missions. The MFE would be used from Earth sea level conditions to the vacuum of space. The current Shuttle configuration utilizes an ammonia boiler and flash evaporator system to achieve cooling at all altitudes. The MFE system combines both functions into a single compact package with significant weight reduction and improved freeze-up protection. The heat exchanger core is designed so that radial flow of the evaporant provides increasing surface area to keep the back pressure low. The multiple layer construction of the core allows for efficient scale up to the desired heat rejection rate. The full scale MFE prototype will be constructed with four core sections that, combined with a novel control scheme, manage the risk of freezing the heat exchanger cores. A sub-scale MFE engineering development unit (EDU) has been built, and is identical to one of the four sections of a full scale prototype. The EDU has completed testing at Hamilton Sundstrand. The overall test objective was to determine the thermal performance of the EDU. The first set of tests simulated how each of the four sections of the prototype would perform by varying the chamber pressure, evaporant flow rate, coolant flow rate and coolant temperature. A second set of tests was conducted with an outlet steam header in place to verify that the outlet steam orifices prevent freeze-up in the core while also allowing the desired thermal turn-down ratio. This paper discusses the EDU tests and results.

  19. 46 CFR 57.02-2 - Adoption of section IX of the ASME Code.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING WELDING AND BRAZING General Requirements § 57.02-2...accordance with section IX of the ASME (American Society of Mechanical Engineers) Code, as limited, modified, or...

  20. The low temperature differential Stirling engine with working fluid operated on critical condition

    SciTech Connect

    Naso, V.; Dong, W.; Lucentini, M.; Capata, R.

    1998-07-01

    The research and development of low temperature differential Stirling engine has a great potential market since a lot of thermal energy at low temperature can supply it and the cost of this kind of engine is lower than general Stirling engine. The characteristics of low compression ratio and low differential temperature Stirling engine may be satisfied with working fluid compressed on critical conditions. By combining two phase heat transfer with forced convective flow in compression space and through the regenerator in the engine, a new heat transfer coefficient emerges capable of absorbing and releasing high heat fluxes without the corresponding low temperature increase. The current analysis focuses on the study of Stirling engines with working fluid compressed on critical conditions, thus at two-phase heat transfer in compression space and regenerator of the engine under forced convective flow conditions.

  1. 1 Copyright 2014 by ASME Proceedings of the 4th Joint US-European Fluids Engineering Division Summer Meeting

    E-print Network

    Hu, Hui

    the cylinder model. Keywords: Passive jet flow control; suppression of alternating vortex shedding; vortex-induced-vibration; wake flows behind circular cylinders. INTRODUCTION Vortex-induced-vibrations (VIVs) of circular cables to control the fluctuating amplitudes of the vortex-induced vibrations of cable models. Glezer and Amitay

  2. Proceedings of The ASME 2012 Fluid Engineering Summer Meeting July 8-12, 2012, Puerto Rico, USA

    E-print Network

    Apte, Sourabh V.

    - geneities such as flue gas, coal particles, fly ash, and char. These heterogeneities can best be described stochastically. In pulverized coal combustion, these heterogeneities include particulate such as coal, fly-ash WITH APPROXIMATED COAL TYPE PARTICULATE Mathew Cleveland Lawrence Livermore National Lab. 7000 East Ave. Livermore

  3. An Innovative Improvement of Engineering Learning System Using Computational Fluid Dynamics Concept

    ERIC Educational Resources Information Center

    Hung, T. C.; Wang, S. K.; Tai, S. W.; Hung, C. T.

    2007-01-01

    An innovative concept of an electronic learning system has been established in an attempt to achieve a technology that provides engineering students with an instructive and affordable framework for learning engineering-related courses. This system utilizes an existing Computational Fluid Dynamics (CFD) package, Active Server Pages programming,…

  4. 1 Copyright 2007 by ASME Proceedings of IDETC/CIE 2007

    E-print Network

    Yang, Maria

    design trade-offs include utility theory originally developed by von Neumann and Morgenstern [11 Copyright © 2007 by ASME Proceedings of IDETC/CIE 2007 ASME 2007 International Design Engineering-world case example. Key words: design preferences, concept selection, design process INTRODUCTION One way

  5. Andresen, B., Salamon, P., and Belry, R. S., 1977, "Thermodynamics in Finite Time: Extremals for Imperfect Engines," J. Chem. Phys., Vol. 66, pp. 1571-

    E-print Network

    Zhang, Yuwen

    , H., 1992, "Performance Analysis of OTEC Plants at Off-Design Conditions: Ammonia as Working Fluid of a Closed-Cycle OTEC System," ASME JOURNALOFSOLARENERGYENGINEERING,Vol. 112, pp. 247-256. Wu, C., 1987, "A Performance Bound for Real OTEC Heat Engines," Ocean Engng., Vol. 14, pp. 349-354. Yuan, Z., and Michaelides

  6. Thirteenth symposium on energy engineering sciences: Proceedings. Fluid/thermal processes, systems analysis and control

    SciTech Connect

    1995-11-01

    The DOE Office of Basic Energy Sciences, of which Engineering Research is a component program, is responsible for the long-term mission-oriented research in the Department. Consistent with the DOE/BES mission, the Engineering Research Program is charged with the identification, initiation, and management of fundamental research on broad, generic topics addressing energy-related engineering problems. Its stated goals are: (1) to improve and extend the body of knowledge underlying current engineering practice so as to create new options for enhancing energy savings and production, for prolonging useful life of energy-related structures and equipment, and for developing advanced manufacturing technologies and materials processing with emphasis on reducing costs with improved industrial production and performance quality; and (2) to expand the store of fundamental concepts for solving anticipated and unforeseen engineering problems in the energy technologies. The meeting covered the following areas: (1) fluid mechanics 1--fundamental properties; (2) fluid mechanics 2--two phase flow; (3) thermal processes; (4) fluid mechanics 3; (5) process analysis and control; (6) fluid mechanics 4--turbulence; (7) fluid mechanics 5--chaos; (8) materials issues; and (9) plasma processes. Selected papers are indexed separately for inclusion in the Energy Science and Technology Database.

  7. MSc in Mechanical Engineering Modelling Fluid Mechanics Specialization

    E-print Network

    Levente, Buttyán

    . Development of an axial fan of long throw. Visualisation of water coning in the model of an oil production SUBJECT DATA SHEET AND REQUIREMENTS last modified: 5th December 2013 FLOW MEASUREMENTS ÁRAMLÁSTANI Mechanics Dr. Jen Miklós SUDA assistant professor Dept. of Fluid Mechanics Márton BALCZÓ assistant research

  8. Bone tissue engineering: the role of interstitial fluid flow

    NASA Technical Reports Server (NTRS)

    Hillsley, M. V.; Frangos, J. A.

    1994-01-01

    It is well established that vascularization is required for effective bone healing. This implies that blood flow and interstitial fluid (ISF) flow are required for healing and maintenance of bone. The fact that changes in bone blood flow and ISF flow are associated with changes in bone remodeling and formation support this theory. ISF flow in bone results from transcortical pressure gradients produced by vascular and hydrostatic pressure, and mechanical loading. Conditions observed to alter flow rates include increases in venous pressure in hypertension, fluid shifts occurring in bedrest and microgravity, increases in vascularization during the injury-healing response, and mechanical compression and bending of bone during exercise. These conditions also induce changes in bone remodeling. Previously, we hypothesized that interstitial fluid flow in bone, and in particular fluid shear stress, serves to mediate signal transduction in mechanical loading- and injury-induced remodeling. In addition, we proposed that a lack or decrease of ISF flow results in the bone loss observed in disuse and microgravity. The purpose of this article is to review ISF flow in bone and its role in osteogenesis.

  9. Proceedings of the ASME/BATH 2013 Symposium on Fluid Power & Motion Control October 6-9, 2013, Sarasota, Florida, USA

    E-print Network

    ), precision actuators. Imaging modalities like computed tomography (CT) and magnetic resonance imaging (MRI.webster@vanderbilt.edu ABSTRACT Magnetic resonance imaging (MRI) offers many benefits to image-guided interventions, including can be designed free of magnetic and electrical components. However, there are no fluid power

  10. ADDRESSING ENVIRONMENTAL ENGINEERING CHALLENGES WITH COMPUTATIONAL FLUID DYNAMICS

    EPA Science Inventory

    In the field of environmental engineering, modeling tools are playing an ever larger role in addressing air quality issues, including source pollutant emissions, atmospheric dispersion and human exposure risks. More detailed modeling of environmental flows requires tools for c...

  11. 14 CFR 25.1182 - Nacelle areas behind firewalls, and engine pod attaching structures containing flammable fluid...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    14 Aeronautics and Space 1 2011-01-01 2011-01-01...firewalls, and engine pod attaching structures containing flammable fluid...25.1182 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION...and engine pod attaching structures containing flammable...

  12. 14 CFR 25.1182 - Nacelle areas behind firewalls, and engine pod attaching structures containing flammable fluid...

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    14 Aeronautics and Space 1 2010-01-01 2010-01-01...firewalls, and engine pod attaching structures containing flammable fluid...25.1182 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION...and engine pod attaching structures containing flammable...

  13. Proceedings of the ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems

    E-print Network

    Shapiro, Benjamin

    SIMULATIONS OF CHAIN FORMATION AND RESTRUCTURING DYNAMICS IN A MAGNETORHEOLOGICAL FLUID Steve G. Sherman Derek, Maryland, 20742 ABSTRACT Magnetorheological fluids consist of micron sized iron par- ticles mixed Re Reynolds Number 1 Copyright c 2011 by ASME #12;INTRODUCTION Magnetorheological (MR) fluids

  14. 6. Fluid mechanics: fluid statics; fluid dynamics

    E-print Network

    Zevenhoven, Ron

    1/96 6. Fluid mechanics: fluid statics; fluid dynamics (internal flows, external flows) Ron and Flow Engineering | 20500 Turku | Finland 2/96 6.1 Fluid statics Åbo Akademi University | Thermal and Flow Engineering | 20500 Turku | Finland #12;3/96 Fluid statics, static pressure /1 Two types

  15. CONTENT KNOWLEDGE (Declarative Knowledge and Technical Skills): Students will demonstrate a broad knowledge of fundamental and applied engineering subjects: fluid

    E-print Network

    Fernandez, Eduardo

    Department of OCEAN & MECHANICAL ENGINEERING B.S. OCEAN ENGINEERING #12;COMMUNICATION SKILLS: The students will demonstrate good oral and written communication skills which are required in engineering practice and teamwork knowledge of fundamental and applied engineering subjects: fluid and solid mechanics, dynamics, hydrostatics

  16. The role of computational fluid dynamics in aeronautical engineering

    NASA Astrophysics Data System (ADS)

    Kishimoto, Takuji; Uchida, Takashi

    1988-12-01

    Numerical analyses by solving Euler/Navier-Stokes Equations has been used in practical aeronautical engineerings. Here, the results of two dimensional Navier-Stokes analyses of a multiple slotted flap, and a three dimensional wing design problem using Euler analyses are shown.

  17. 14 CFR 25.1182 - Nacelle areas behind firewalls, and engine pod attaching structures containing flammable fluid...

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... pod attaching structures containing flammable fluid lines. 25.1182 Section 25.1182 Aeronautics and..., and engine pod attaching structures containing flammable fluid lines. (a) Each nacelle area... fluid lines, must meet each requirement of §§ 25.1103(b), 25.1165 (d) and (e), 25.1183, 25.1185(c),...

  18. 14 CFR 25.1182 - Nacelle areas behind firewalls, and engine pod attaching structures containing flammable fluid...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... pod attaching structures containing flammable fluid lines. 25.1182 Section 25.1182 Aeronautics and..., and engine pod attaching structures containing flammable fluid lines. (a) Each nacelle area... fluid lines, must meet each requirement of §§ 25.1103(b), 25.1165 (d) and (e), 25.1183, 25.1185(c),...

  19. Non-Newtonian Granular Fluids: Simulation and Theory Engineering Mechanics Unit, Jawaharlal Nehru Center for Advanced Scientific Research

    E-print Network

    Luding, Stefan

    Non-Newtonian Granular Fluids: Simulation and Theory M. Alam Engineering Mechanics Unit, Jawaharlal properties of granular fluids are probed via event-driven simulations of the inelastic hard-sphere model. We find that granular fluids support large normal stress differences for the whole range of densities

  20. NonNewtonian Granular Fluids: Simulation and Theory Engineering Mechanics Unit, Jawaharlal Nehru Center for Advanced Scientific Research

    E-print Network

    Luding, Stefan

    Non­Newtonian Granular Fluids: Simulation and Theory M. Alam Engineering Mechanics Unit, Jawaharlal properties of granular fluids are probed via event­driven simulations of the inelastic hard­sphere model. We find that granular fluids support large normal stress differences for the whole range of densities

  1. Fusion Engineering and Design 82 (2007) 22172225 Integrated thermo-fluid analysis towards helium flow

    E-print Network

    Abdou, Mohamed

    2007-01-01

    the ITER test blanket module (TBM) warrants the need of extensive computer aided engineering (CAE strategy for the TBM, namely the exit temperature of coolant, overall pressure drop, uniformity for carrying out complex thermo-fluid analysis using the complete three dimensional CAD models of the TBM

  2. East Hydraulic Power Supply Unit University of Saskatchewan -Mechanical Engineering Fluid Power and Controls

    E-print Network

    Saskatchewan, University of

    East Hydraulic Power Supply Unit University of Saskatchewan - Mechanical Engineering ­ Fluid Power and Controls ID: FP0004 Rev: 001 Date: May 31, 2010 Page: 1 of 7 East Hydraulic Power Supply and Test Bench. Approved By: Primary Contact: Doug Bitner Rm: 1B15.1 966-5462 Secondary Contact: #12;East Hydraulic Power

  3. HYPower Hydraulic Power Supply Unit University of Saskatchewan -Mechanical Engineering Fluid Power and Controls

    E-print Network

    Saskatchewan, University of

    HYPower Hydraulic Power Supply Unit University of Saskatchewan - Mechanical Engineering ­ Fluid Power and Controls ID: FP0002 Rev: 002 Date: May 31, 2010 Page: 1 of 7 Hydraulic Power Supply (HYPower-5462 Secondary Contact: #12;HYPower Hydraulic Power Supply Unit University of Saskatchewan - Mechanical

  4. Computational fluid dynamics applied to flows in an internal combustion engine

    NASA Technical Reports Server (NTRS)

    Griffin, M. D.; Diwakar, R.; Anderson, J. D., Jr.; Jones, E.

    1978-01-01

    The reported investigation is a continuation of studies conducted by Diwakar et al. (1976) and Griffin et al. (1976), who reported the first computational fluid dynamic results for the two-dimensional flowfield for all four strokes of a reciprocating internal combustion (IC) engine cycle. An analysis of rectangular and cylindrical three-dimensional engine models is performed. The working fluid is assumed to be inviscid air of constant specific heats. Calculations are carried out of a four-stroke IC engine flowfield wherein detailed finite-rate chemical combustion of a gasoline-air mixture is included. The calculations remain basically inviscid, except that in some instances thermal conduction is included to allow a more realistic model of the localized sparking of the mixture. All the results of the investigation are obtained by means of an explicity time-dependent finite-difference technique, using a high-speed digital computer.

  5. ASM Materials Camp -Lehigh Valley

    E-print Network

    Gilchrist, James F.

    . Address: (Street or P.O. Box) City State Zip Country 3. Email Address (most communication will be sent provide name of ASM member and your relationship: Name of ASM Member Relationship D. Are you related member and your relationship: Name of Carpenter Technology Member Relationship E. Attach a copy of most

  6. 46 CFR 52.01-2 - Adoption of section I of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... (incorporated by reference; see 46 CFR 52.01-1), as limited, modified, or replaced by specific requirements in... 46 Shipping 2 2011-10-01 2011-10-01 false Adoption of section I of the ASME Boiler and Pressure...) MARINE ENGINEERING POWER BOILERS General Requirements § 52.01-2 Adoption of section I of the ASME...

  7. 46 CFR 52.01-2 - Adoption of section I of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... (incorporated by reference; see 46 CFR 52.01-1), as limited, modified, or replaced by specific requirements in... 46 Shipping 2 2012-10-01 2012-10-01 false Adoption of section I of the ASME Boiler and Pressure...) MARINE ENGINEERING POWER BOILERS General Requirements § 52.01-2 Adoption of section I of the ASME...

  8. 46 CFR 52.01-2 - Adoption of section I of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... (incorporated by reference; see 46 CFR 52.01-1), as limited, modified, or replaced by specific requirements in... 46 Shipping 2 2013-10-01 2013-10-01 false Adoption of section I of the ASME Boiler and Pressure...) MARINE ENGINEERING POWER BOILERS General Requirements § 52.01-2 Adoption of section I of the ASME...

  9. 46 CFR 52.01-2 - Adoption of section I of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... (incorporated by reference; see 46 CFR 52.01-1), as limited, modified, or replaced by specific requirements in... 46 Shipping 2 2014-10-01 2014-10-01 false Adoption of section I of the ASME Boiler and Pressure...) MARINE ENGINEERING POWER BOILERS General Requirements § 52.01-2 Adoption of section I of the ASME...

  10. Inhomogeneity of fluid flow in Stirling engine regenerators

    SciTech Connect

    Jones, J.D. )

    1989-10-01

    The literature relating to inhomogeneity of flow regenerators is briefly reviewed. It is noted that, in contrast to other applications of regenerators, relatively little attention has been paid to the consequences of flow inhomogeneity for thermal regeneration in Stirling cycle machines. The construction of regenerator capsules for a large stationary Stirling engine is described. A test rig is developed to measure the gas velocity profile across the face of the packed regenerator capsules under steady flow conditions. Measured flow profiles for a number of different matrix materials and construction techniques are presented, and it is noted that stacked-mesh regenerator matrices tend to display marked inhomogeneities of flow. The consequences of flow inhomogeneity for flow friction and regenerator effectiveness are analyzed theoretically, and approximate formulae deduced. One method for reducing flow inhomogeneity in stacked-screen matrice

  11. Controlling health risks from workplace exposure to metalworking fluids in the United Kingdom engineering industry.

    PubMed

    Stear, Martin A

    2003-11-01

    On October 15, 2002, the United Kingdom (UK) Health and Safety Executive (HSE) launched new guidance for the engineering industry, aimed at reducing health risks from metalworking fluids (MWFs). This guidance was the culmination of many years of work on this subject. In the early 1990s, the UK occupational exposure standards (OES) for oil mist were 5 mg/m(-3) 8-hour time-weighted average (TWA), and 10 mg/m(-3) short-term exposure limit (STEL). This was only applicable to highly refined mineral oil mists and there was no exposure limit for water-mix MWFs (emulsions, semi-synthetics, and synthetics). HSE therefore undertook to review the existing exposure limit for neat mineral oil mists (neat oils are fluids that contain highly refined mineral oils and additives, and are used neat without mixing with water) and consider developing one for water-mix MWFs. This led to the development of new air-sampling methods, a comprehensive survey, and the development of new good practice guidance in the place of statutory exposure limits. This new good practice guidance has been endorsed and launched with the help of relevant industry supplier, employer, and employee associations. The guidance builds on the philosophy of tackling health risks as a holistic approach; for example, not just tackling mist control through the use of ventilation, but also fluid selection, fluid delivery, and fluid management (fluid management means to effectively manage all aspects of the fluid, from storage and stock preparation to sump cleaning and fluid disposal, etc.). Tools, such as laminated task sheets, are provided to make it user friendly. It also demonstrates the business benefits from this approach, that managing your MWFs effectively can reduce the incidence of ill health, reduce fluid and disposal costs, increase tool life, and improve machining performance. PMID:14555440

  12. High-pressure rocket engine turnaround duct computational fluid dynamics analysis

    NASA Astrophysics Data System (ADS)

    Cox, G. B., Jr.

    1984-10-01

    Current and projected high-pressure, staged-combustion rocket engine designs, such as the XLR129 and space shuttle main engine (SSME), introduced a type of turnaround duct flowpath wherein the turnaround is accompanied by an increase in mean radius and a decrease in fluid velocity through a subsequent diffuser. This turnaround duct flowpath is needed in the rocket engine to conduct high-pressure turbopump turbine discharge gases toward the main injector while maintaining a compact turbomachinery and powerhead flowpath. Current experience in the SSME shows that this type of turnaround duct can experience flow separation with an attendant increase in flow turbulence levels. Advances in computational fluid dynamics techniques over the last decade produced a number of codes which are applicable to the analysis and prediction of flow field behavior within such ducts. A version of the TEACH code developed at Pratt & Whitney Engineering Division was used to analyze three representative turnaround duct configurations. The study included the effects of fluid properties, inlet velocity flowfields, solution grid mesh size, and numerical solution algorithm upon calculated flow. Results include flow streamline comparisons, velocity profiles, and calculated total pressure losses. The results showed that turnaround ducts of the type studied can exhibit separation but that appropriately designed turnaround ducts can be made to function without suffering from internal flow separation.

  13. Optimization of new magnetorheological fluid mount for vibration control of start/stop engine mode

    NASA Astrophysics Data System (ADS)

    Chung, Jye Ung; Phu, Do Xuan; Choi, Seung-Bok

    2015-04-01

    The technologies related to saving energy/or green vehicles are actively researched. In this tendency, the problem for reducing exhausted gas is in development with various ways. Those efforts are directly related to the operation of engine which emits exhausted gas. The auto start/stop of vehicle engine when a vehicle stop at road is currently as a main stream of vehicle industry resulting in reducing exhausted gas. However, this technology automatically turns on and off engine frequently. This motion induces vehicle engine to transmit vibration of engine which has large displacement, and torsional impact to chassis. These vibrations causing uncomfortable feeling to passengers are transmitted through the steering wheel and the gear knob. In this work, in order to resolve this vibration issue, a new proposed magnetorheological (MR) fluid based engine mount (MR mount in short) is presented. The proposed MR mount is designed to satisfy large damping force in various frequency ranges. It is shown that the proposed mount can have large damping force and large force ratio which is enough to control unwanted vibrations of engine start/stop mode.

  14. Thermal/Fluid Analysis of a Composite Heat Exchanger for Use on the RLV Rocket Engine

    NASA Technical Reports Server (NTRS)

    Nguyen, Dalton

    2002-01-01

    As part of efforts to design a regeneratively cooled composite nozzle ramp for use on the reusable vehicle (RLV) rocket engine, an C-SiC composites heat exchanger concept was proposed for thermal performance evaluation. To test the feasibility of the concept, sample heat exchanger panels were made to fit the Glenn Research Center's cell 22 for testing. Operation of the heat exchanger was demonstrated in a combustion environment with high heat fluxes similar to the RLV Aerospike Ramp. Test measurements were reviewed and found to be valuable for the on going fluid and thermal analysis of the actual RLV composite ramp. Since the cooling fluid for the heat exchanger is water while the RLV Ramp cooling fluid is LH2, fluid and thermal models were constructed to correlate to the specific test set-up. The knowledge gained from this work will be helpful for analyzing the thermal response of the actual RLV Composite Ramp. The coolant thermal properties for the models are taken from test data. The heat exchanger's cooling performance was analyzed using the Generalized Fluid System Simulation Program (GFSSP). Temperatures of the heat exchanger's structure were predicted in finite element models using Patran and Sinda. Results from the analytical models and the tests show that RSC's heat exchanger satisfied the combustion environments in a series of 16 tests.

  15. Thermal/Fluid Analysis of a Composite Heat Exchanger for Use on the RLV Rocket Engine

    NASA Technical Reports Server (NTRS)

    Nguyen, Dalton; Turner, Larry D. (Technical Monitor)

    2001-01-01

    As part of efforts to design a regeneratively cooled composite nozzle ramp for use on the reusable vehicle (RLV) rocket engine, a C-SiC composite heat exchanger concept was proposed for thermal performance evaluation. To test the feasibility of the concept, sample heat exchanger panels were made to fit the Glenn Research Center's cell 22 for testing. Operation of the heat exchanger was demonstrated in a combustion environment with high heat fluxes similar to the RLV Aerospike Ramp. Test measurements were reviewed and found to be valuable for the on-going fluid and thermal analysis of the actual RLV composite ramp. Since the cooling fluid for the heat exchanger is water while the RLV Ramp cooling fluid is LH2, fluid and therma models were constructed to correlate to the specific test set-up. The knowledge gained from this work will be helpful for analyzing the thermal response of the actual RLV Composite Ramp. The coolant thermal properties for the models are taken from test data. The heat exchanger's cooling performance was analyzed using the Generalized Fluid System Simulation Program (GFSSP). Temperatures of the heat exchanger's structure were predicted in finite element models using Patran and Sinda. Results from the analytical models and the tests show that RSC's heat exchanger satisfied the combustion environments in a series of 16 tests.

  16. 1 Copyright 2007 by ASME A LEARNING ALGORITHM FOR OPTIMAL INTERNAL COMBUSTION

    E-print Network

    Papalambros, Panos

    1 Copyright © 2007 by ASME A LEARNING ALGORITHM FOR OPTIMAL INTERNAL COMBUSTION ENGINE CALIBRATION-4256, Email: amaliko@umich.edu ABSTRACT Advanced internal combustion engine technologies have increased combustion engine calibration, fuel economy 1. INTRODUCTION The growing requests for better performance

  17. Power enhancement of heat engines via correlated thermalization in a three-level “working fluid”

    NASA Astrophysics Data System (ADS)

    Gelbwaser-Klimovsky, David; Niedenzu, Wolfgang; Brumer, Paul; Kurizki, Gershon

    2015-09-01

    We explore means of maximizing the power output of a heat engine based on a periodically-driven quantum system that is constantly coupled to hot and cold baths. It is shown that the maximal power output of such a heat engine whose “working fluid” is a degenerate V-type three-level system is that generated by two independent two-level systems. Hence, level degeneracy is a thermodynamic resource that may effectively double the power output. The efficiency, however, is not affected. We find that coherence is not an essential asset in such multilevel-based heat engines. The existence of two thermalization pathways sharing a common ground state suffices for power enhancement.

  18. Power enhancement of heat engines via correlated thermalization in a three-level “working fluid”

    PubMed Central

    Gelbwaser-Klimovsky, David; Niedenzu, Wolfgang; Brumer, Paul; Kurizki, Gershon

    2015-01-01

    We explore means of maximizing the power output of a heat engine based on a periodically-driven quantum system that is constantly coupled to hot and cold baths. It is shown that the maximal power output of such a heat engine whose “working fluid” is a degenerate V-type three-level system is that generated by two independent two-level systems. Hence, level degeneracy is a thermodynamic resource that may effectively double the power output. The efficiency, however, is not affected. We find that coherence is not an essential asset in such multilevel-based heat engines. The existence of two thermalization pathways sharing a common ground state suffices for power enhancement. PMID:26394838

  19. Power enhancement of heat engines via correlated thermalization in a three-level "working fluid".

    PubMed

    Gelbwaser-Klimovsky, David; Niedenzu, Wolfgang; Brumer, Paul; Kurizki, Gershon

    2015-01-01

    We explore means of maximizing the power output of a heat engine based on a periodically-driven quantum system that is constantly coupled to hot and cold baths. It is shown that the maximal power output of such a heat engine whose "working fluid" is a degenerate V-type three-level system is that generated by two independent two-level systems. Hence, level degeneracy is a thermodynamic resource that may effectively double the power output. The efficiency, however, is not affected. We find that coherence is not an essential asset in such multilevel-based heat engines. The existence of two thermalization pathways sharing a common ground state suffices for power enhancement. PMID:26394838

  20. Neutron imaging of hydrogen-rich fluids in geomaterials and engineered porous media: A review

    NASA Astrophysics Data System (ADS)

    Perfect, E.; Cheng, C.-L.; Kang, M.; Bilheux, H. Z.; Lamanna, J. M.; Gragg, M. J.; Wright, D. M.

    2014-02-01

    Recent advances in visualization technologies are providing new discoveries as well as answering old questions with respect to the phase structure and flow of hydrogen-rich fluids, such as water and oil, within porous media. Magnetic resonance and x-ray imaging are sometimes employed in this context, but are subject to significant limitations. In contrast, neutrons are ideally suited for imaging hydrogen-rich fluids in abiotic non-hydrogenous porous media because they are strongly attenuated by hydrogen and can "see" through the solid matrix in a non-destructive fashion. This review paper provides an overview of the general principles behind the use of neutrons to image hydrogen-rich fluids in both 2-dimensions (radiography) and 3-dimensions (tomography). Engineering standards for the neutron imaging method are examined. The main body of the paper consists of a comprehensive review of the diverse scientific literature on neutron imaging of static and dynamic experiments involving variably-saturated geomaterials (rocks and soils) and engineered porous media (bricks and ceramics, concrete, fuel cells, heat pipes, and porous glass). Finally some emerging areas that offer promising opportunities for future research are discussed.

  1. Movement of geothermal fluid in the Cerro Prieto field as determined from well log and reservoir engineering data

    SciTech Connect

    Halfman, S.E.; Lippmann, M.J.; Zelwer, R.

    1982-01-01

    A hydrogeologic model of the Cerro Prieto geothermal field in its undisturbed state, developed on the basis of well log and reservoir engineering data, is discussed. According to this model, geothermal fluid enters the field from the east through a deep (>10,000 ft) sandstone aquifer which is overlain by a thick shale unit which locally prevents the upward migration of the fluid. As it flows westward, the fluid gradually rises through faults and sandy gaps in the shale unit. Eventually, some of the fluid leaks to the surface in the western part of the field, while the rest mixes with surrounding colder waters.

  2. MEMBERS ONLY | Join | Renew | Shop | About | Contact Us | Home ASME.ORG > News & Public Policy > Press Releases > Research Begun on New Fuel Cell Type

    E-print Network

    , the magazine reports on a fuel cell that cleans domestic wastewater while producing electrical energy. This new Engineering. To view the entire article, "From Foul to Fuel," visit the ASME Web site at www.asme.org. Founded Program Task Group · A17 TGs on Use of Elevators by Firefighters and Occupant Egress · A17 Hydraulic

  3. Design of a new engine mount for vertical and horizontal vibration control using magnetorheological fluid

    NASA Astrophysics Data System (ADS)

    Phu, D. X.; Choi, S. B.; Lee, Y. S.; Han, M. S.

    2014-10-01

    This paper presents a new design of a magnetorheological fluid (MR) mount for vibration control considering both vertical forces and horizontal moments such as are met in various engine systems, including a medium high-speed engine of ship. The newly designed mount, called a MR brake mount, offers several salient benefits such as small size and relatively high load capacity compared with a conventional MR engine mount that can control vertical vibration only. The principal design parameters of the proposed mount are optimally determined to achieve maximum torque with geometric and spatial constraints. Subsequently, the proposed MR mount is designed and manufactured based on the optimized design parameters. It is shown from experimental testing that the proposed mount, which combines MR mount with MR brake, can produce the desired force and torque to reduce unwanted vibration of a medium high-speed engine system of ship subjected to both vertical and horizontal exciting motions. In addition, it is verified that there is no large difference between experiment results and simulation results that are obtained from an analytical model derived in this work.

  4. Proceedings of the ASME/JSME 2011 8th Thermal Engineering Joint Conference March 13-17, 2011, Honolulu, Hawaii, USA

    E-print Network

    Chen, Yong P.

    -17, 2011, Honolulu, Hawaii, USA AJTEC2011-44521 THERMAL RECTIFICATION IN GRAPHENE AND CARBON NANOTUBE Thermal Engineering Joint Conference AJTEC2011 March 13-17, 2011, Honolulu, Hawaii, USA AJTEC2011

  5. Amniotic Fluid-Derived Stem Cells for Cardiovascular Tissue Engineering Applications

    PubMed Central

    Petsche Connell, Jennifer; Camci-Unal, Gulden; Khademhosseini, Ali

    2013-01-01

    Recent research has demonstrated that a population of stem cells can be isolated from amniotic fluid removed by amniocentesis that are broadly multipotent and nontumorogenic. These amniotic fluid-derived stem cells (AFSC) could potentially provide an autologous cell source for treatment of congenital defects identified during gestation, particularly cardiovascular defects. In this review, the various methods of isolating, sorting, and culturing AFSC are compared, along with techniques for inducing differentiation into cardiac myocytes and endothelial cells. Although research has not demonstrated complete and high-yield cardiac differentiation, AFSC have been shown to effectively differentiate into endothelial cells and can effectively support cardiac tissue. Additionally, several tissue engineering and regenerative therapeutic approaches for the use of these cells in heart patches, injection after myocardial infarction, heart valves, vascularized scaffolds, and blood vessels are summarized. These applications show great promise in the treatment of congenital cardiovascular defects, and further studies of isolation, culture, and differentiation of AFSC will help to develop their use for tissue engineering, regenerative medicine, and cardiovascular therapies. PMID:23350771

  6. Synthesis and Engineering Materials Properties of Fluid Phase Chemical Hydrogen Storage Materials for Automotive Applications

    SciTech Connect

    Choi, Young Joon; Westman, Matthew P.; Karkamkar, Abhijeet J.; Chun, Jaehun; Ronnebro, Ewa

    2015-09-01

    Among candidates for chemical hydrogen storage in PEM fuel cell automotive applications, ammonia borane (AB, NH3BH3) is considered to be one of the most promising materials due to its high practical hydrogen content of 14-16 wt%. This material is selected as a surrogate chemical for a hydrogen storage system. For easier transition to the existing infrastructure, a fluid phase hydrogen storage material is very attractive and thus, we investigated the engineering materials properties of AB in liquid carriers for a chemical hydrogen storage slurry system. Slurries composed of AB and high temperature liquids were prepared by mechanical milling and sonication in order to obtain stable and fluidic properties. Volumetric gas burette system was adopted to observe the kinetics of the H2 release reactions of the AB slurry and neat AB. Viscometry and microscopy were employed to further characterize slurries engineering properties. Using a tip-sonication method we have produced AB/silicone fluid slurries at solid loadings up to 40wt% (6.5wt% H2) with viscosities less than 500cP at 25°C.

  7. 1 Copyright 2003 by ASME IMPROVING LIFE CYCLE ASSESSMENT BY INCLUDING SPATIAL, DYNAMIC AND PLACE-

    E-print Network

    of Mechanical Engineering Georgia Institute of Technology Atlanta, GA 30332-0405 USA Patrick J. Newcomb cycle - from "cradle to grave." The environmental impacts of products ranging from milk to petrol have of impact categories and weighting schemes. Proceedings of DETC'03 ASME 2003 Design Engineering Technical

  8. Modeling Potential Carbon Monoxide Exposure Due to Operation of a Major Rocket Engine Altitude Test Facility Using Computational Fluid Dynamics

    NASA Technical Reports Server (NTRS)

    Blotzer, Michael J.; Woods, Jody L.

    2009-01-01

    This viewgraph presentation reviews computational fluid dynamics as a tool for modelling the dispersion of carbon monoxide at the Stennis Space Center's A3 Test Stand. The contents include: 1) Constellation Program; 2) Constellation Launch Vehicles; 3) J2X Engine; 4) A-3 Test Stand; 5) Chemical Steam Generators; 6) Emission Estimates; 7) Located in Existing Test Complex; 8) Computational Fluid Dynamics; 9) Computational Tools; 10) CO Modeling; 11) CO Model results; and 12) Next steps.

  9. Ming-Chia Daniel LAI Mechanical Engineering Department

    E-print Network

    Yu, Sheng-Tao

    of Mechanical Engineering (ASME), Fellow Technical Associate of Internal Combustion Engine Division (ICED Engineering, Engine Combustion, Energy Conversion, Alternative Energy Technology; Optical diagnostics) Combustion and Fuel committee, International Gas Turbine Institute. (IGTI) American Institute of Aeronautics

  10. 46 CFR 52.01-2 - Adoption of section I of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 2 2010-10-01 2010-10-01 false Adoption of section I of the ASME Boiler and Pressure Vessel Code. 52.01-2 Section 52.01-2 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING POWER BOILERS General Requirements § 52.01-2 Adoption of section I of the ASME Boiler and Pressure Vessel Code. (a) Main...

  11. 1 Copyright 2012 by ASME Proceedings of the ASME 2012 Summer Heat Transfer Conference

    E-print Network

    Bahrami, Majid

    , #12;2 Copyright © 2012 by ASME is convective heat transfer coefficient and is thermal conductivity1 Copyright © 2012 by ASME Proceedings of the ASME 2012 Summer Heat Transfer Conference HT2012 July CONVECTIVE HEAT TRANSFER FROM VERTICALLY-MOUNTED RECTANGULAR INTERRUPTED FINS Golnoosh Mostafavi MASc

  12. Boundary layer stability and transition to turbulence; Proceedings of the Symposium, ASME and JSME Joint Fluids Engineering Conference, 1st, Portland, OR, June 23-27, 1991

    NASA Astrophysics Data System (ADS)

    Reda, D. C.; Reed, H. L.; Kobayashi, R.

    The papers presented at the conference provide an overview of current research related to the mechanisms of the laminar-turbulent transition. The principal topics discussed include receptivity, bypass mechanisms, curvature, three-dimensionality, nonlinearities, breakdown, and control. Papers are included on linear and nonlinear receptivity to vortical free-stream disturbances; initiation of boundary-layer disturbances by nonlinear mode interactions; stability and transition to turbulence of thin liquid film flow along a rotating disk; and turbulent intermittency measurements for turbomachinery flows.

  13. 1 Copyright 2004 by ASME PHASE-FIELD SIMULATION OF SOLIDIFICATION WITH DENSITY CHANGE

    E-print Network

    Beckermann, Christoph

    1 Copyright © 2004 by ASME PHASE-FIELD SIMULATION OF SOLIDIFICATION WITH DENSITY CHANGE Ying Sun@engineering.uiowa.edu ABSTRACT Phase-field models of solidification with convection often assume the existence of a single flow to a solidification front induced by a density difference between the solid and liquid

  14. Constitution Organization: ASME Date: 5 September, 2014

    E-print Network

    Firestone, Jeremy

    Constitution Organization: ASME Date: 5 September, 2014 Preamble We, the students at the University, or sexual orientation. #12;Constitution Organization: ASME Date: 5 September, 2014 Article IV Officers. The build master will coordinate with other universities for construction competitions. #12;Constitution

  15. Amniotic Fluid-Derived Stem Cells for Cardiovascular Tissue Engineering Applications

    E-print Network

    Petsche Connell, Jennifer

    Recent research has demonstrated that a population of stem cells can be isolated from amniotic fluid removed by amniocentesis that are broadly multipotent and nontumorogenic. These amniotic fluid-derived stem cells (AFSC) ...

  16. Engineered diamond nanopillars as mobile probes for high sensitivity metrology in fluid

    NASA Astrophysics Data System (ADS)

    Andrich, P.; de Las Casas, C. F.; Heremans, F. J.; Awschalom, D. D.; Aleman, B. J.; Ohno, K.; Lee, J. C.; Hu, E. L.

    2015-03-01

    The nitrogen-vacancy (NV) center`s optical addressability and exceptional spin coherence properties at room temperature, along with diamond`s biocompatibility, has put this defect at the frontier of metrology applications in biological environments. To push the spatial resolution to the nanoscale, extensive research efforts focus on using NV centers embedded in nanodiamonds (NDs). However, this approach has been hindered by degraded spin coherence properties in NDs and the lack of a platform for spatial control of the nanoparticles in fluid. In this work, we combine the use of high quality diamond membranes with a top-down patterning technique to fabricate diamond nanoparticles with engineered and highly reproducible shape, size, and NV center density. We obtain NDs, easily releasable from the substrate into a water suspension, which contain single NV centers exhibiting consistently long spin coherence times (up to 700 ?s). Additionally, we demonstrate highly stable, three-dimensional optical trapping of the nanoparticles within a microfluidic circuit. This level of control enables a bulk-like DC magnetic sensitivity and gives access to dynamical decoupling techniques on contactless, miniaturized diamond probes. This work was supported by DARPA, AFOSR, and the DIAMANT program.

  17. Evaluation of space shuttle main engine fluid dynamic frequency response characteristics

    NASA Technical Reports Server (NTRS)

    Gardner, T. G.

    1980-01-01

    In order to determine the POGO stability characteristics of the space shuttle main engine liquid oxygen (LOX) system, the fluid dynamic frequency response functions between elements in the SSME LOX system was evaluated, both analytically and experimentally. For the experimental data evaluation, a software package was written for the Hewlett-Packard 5451C Fourier analyzer. The POGO analysis software is documented and consists of five separate segments. Each segment is stored on the 5451C disc as an individual program and performs its own unique function. Two separate data reduction methods, a signal calibration, coherence or pulser signal based frequency response function blanking, and automatic plotting features are included in the program. The 5451C allows variable parameter transfer from program to program. This feature is used to advantage and requires only minimal user interface during the data reduction process. Experimental results are included and compared with the analytical predictions in order to adjust the general model and arrive at a realistic simulation of the POGO characteristics.

  18. System and method for improving performance of a fluid sensor for an internal combustion engine

    DOEpatents

    Kubinski, David (Canton, MI); Zawacki, Garry (Livonia, MI)

    2009-03-03

    A system and method for improving sensor performance of an on-board vehicle sensor, such as an exhaust gas sensor, while sensing a predetermined substance in a fluid flowing through a pipe include a structure for extending into the pipe and having at least one inlet for receiving fluid flowing through the pipe and at least one outlet generally opposite the at least one inlet, wherein the structure redirects substantially all fluid flowing from the at least one inlet to the sensor to provide a representative sample of the fluid to the sensor before returning the fluid through the at least one outlet.

  19. Overview of heat transfer and fluid flow problem areas encountered in Stirling engine modeling

    NASA Technical Reports Server (NTRS)

    Tew, Roy C., Jr.

    1988-01-01

    NASA Lewis Research Center has been managing Stirling engine development programs for over a decade. In addition to contractual programs, this work has included in-house engine testing and development of engine computer models. Attempts to validate Stirling engine computer models with test data have demonstrated that engine thermodynamic losses need better characterization. Various Stirling engine thermodynamic losses and efforts that are underway to characterize these losses are discussed.

  20. Overview of heat transfer and fluid flow problem areas encountered in stirling engine modeling

    SciTech Connect

    Tew, R.C. Jr.

    1988-02-01

    NASA Lewis Research Center has been managing Stirling engine development programs for over a decade. In addition to contractual programs, this work has included in-house engine testing and development of engine computer models. Attempts to validate Stirling engine computer models with test data have demonstrated that engine thermodynamic losses need better characterization. Various Stirling engine thermodynamic losses and efforts that are underway to characterize these losses are discussed.

  1. The Engineering Societies & Continuing Education.

    ERIC Educational Resources Information Center

    Professional Engineer, 1979

    1979-01-01

    Gives a description of what the major engineering societies (ASCE, ASME, AICHE, and IEEE) are doing in the area of continuing education. The description includes the short courses, their costs, duration, type and scope of the content. (GA)

  2. First Microbial Community Assessment of Borehole Fluids from the Deep Underground Science and Engineering Laboratory (DUSEL)

    NASA Astrophysics Data System (ADS)

    Moser, D. P.; Anderson, C.; Bang, S.; Jones, T. L.; Boutt, D.; Kieft, T.; Sherwood Lollar, B.; Murdoch, L. C.; Pfiffner, S. M.; Bruckner, J.; Fisher, J. C.; Newburn, J.; Wheatley, A.; Onstott, T. C.

    2010-12-01

    Fluid and gas samples were collected from two flowing boreholes at the 4100 (1,250 m) and 4850 ft (1478 m) levels of the former Homestake Gold Mine in Lead, South Dakota. Service- and flood water samples were also collected as comparative benchmarks. With a maximum depth of 8,000 ft, (2,438 m), this mine currently hosts the Sanford Laboratory and is the proposed location for the US Deep Underground Science and Engineering Laboratory (DUSEL). The uncased 4100L hole is a legacy of mining; whereas, the cased 4850 hole was drilled in 2009 in support of large cavity construction. Both were packered or valved to exclude mine air and sampled anaerobically using aseptic technique. Physical measurements, aquatic and dissolved gas chemistry, cell counts, and microbial community assessments (SSU rRNA libraries) were performed on all samples. This study represents the first at Sanford Lab/DUSEL specifically focused on the deep biosphere rather than mine microbiology. Fluids from the two holes differed markedly, with that from 4100L being characterized by NaHCO3 and 4850 by Na2SO4. pH values of 8.2 vs. 7.5, conductivities (?S) of 1790 vs. 7667 and alkalinities (mg/L) of 767 vs. 187 were obtained from 4100L and 4850, respectively. As expected, the deeper 4850L hole had the higher temperature (38 vs. 30 oC). Neither had measureable nitrate, but both had similar dissolved organic C (DOC) concentrations (0.8 vs. 0.9 mg/L). Sulfate was present at 337 vs. 4,470 mg/L in 4100L and 4850L. Major dissolved gases were N2 (91 and 81 vol%), O2 (12 and 16 vol%) and CH4 (0.07 and 3.35 vol%) in 4100L and 4850L. The ?13C of CH4 was -51 and -56.7 permil in 4100L and 4850, respectively. The uncorrected 14C age of DIC was calculated at 25,310 (+/- 220) and 47,700 (+/-3,100) years for the two fluids. Cell counts were 5.9e3 and 2.01e5 in 4100L and 4850. Microbial community structure was diverse in both holes and distinct from that of service water. A large proportion of rRNA library clones were Proteobacteria and closely related to known or expected aerobes including: Thiobacillus, Siderooxidans, Leptothrix, Hydrogenophaga, Pseaudomonas, Methylomonas and Thiothrix, consistent with possible mine water or air contamination. Conversely, Deltaproteobacteria and Firmicute clones, often very closely related to others detected from deep mine or sediment habitats, suggests a deep subsurface component as well. Archaeal clones from 4100L were dominated by a deeply-branching clade with no cultivated representatives; whereas, those from 4850 were mostly related to known methanogens (e.g. Methanolobus). Collectively, this dataset suggests mixed end-member or deeply-sourced water partially overprinted by mine-related artifacts. However, until more is known concerning the deep hydrogeology of this system, it will be difficult to ascertain indigenous from impacted microbial communities in DUSEL.

  3. Testing of the Engineering Model Electrical Power Control Unit for the Fluids and Combustion Facility

    NASA Technical Reports Server (NTRS)

    Kimnach, Greg L.; Lebron, Ramon C.; Fox, David A.

    1999-01-01

    The John H. Glenn Research Center at Lewis Field (GRC) in Cleveland, OH and the Sundstrand Corporation in Rockford, IL have designed and developed an Engineering Model (EM) Electrical Power Control Unit (EPCU) for the Fluids Combustion Facility, (FCF) experiments to be flown on the International Space Station (ISS). The EPCU will be used as the power interface to the ISS power distribution system for the FCF's space experiments'test and telemetry hardware. Furthermore. it is proposed to be the common power interface for all experiments. The EPCU is a three kilowatt 12OVdc-to-28Vdc converter utilizing three independent Power Converter Units (PCUs), each rated at 1kWe (36Adc @ 28Vdc) which are paralleled and synchronized. Each converter may be fed from one of two ISS power channels. The 28Vdc loads are connected to the EPCU output via 48 solid-state and current-limiting switches, rated at 4Adc each. These switches may be paralleled to supply any given load up to the 108Adc normal operational limit of the paralleled converters. The EPCU was designed in this manner to maximize allocated-power utilization. to shed loads autonomously, to provide fault tolerance. and to provide a flexible power converter and control module to meet various ISS load demands. Tests of the EPCU in the Power Systems Facility testbed at GRC reveal that the overall converted-power efficiency, is approximately 89% with a nominal-input voltage of 12OVdc and a total load in the range of 4O% to 110% rated 28Vdc load. (The PCUs alone have an efficiency of approximately 94.5%). Furthermore, the EM unit passed all flight-qualification level (and beyond) vibration tests, passed ISS EMI (conducted, radiated. and susceptibility) requirements. successfully operated for extended periods in a thermal/vacuum chamber, was integrated with a proto-flight experiment and passed all stability and functional requirements.

  4. Mechanics of granular-frictional-visco-plastic fluids in civil and mining engineering

    NASA Astrophysics Data System (ADS)

    Alehossein, H.; Qin, Z.

    2013-10-01

    The shear stress generated in mine backfill slurries and fresh concrete contains both velocity gradient dependent and frictional terms, categorised as frictional viscous plastic fluids. This paper discusses application of the developed analytical solution for flow rate as a function of pressure and pressure gradient in discs, pipes and cones for such frictional Bingham-Herschel-Bulkley fluids. This paper discusses application of this continuum fluid model to industrial materials like mine and mineral slurries, backfills and fresh concrete tests.

  5. ChE260 Fluid Flow Otto H. York Department of Chemical, Biological & Pharmaceutical Engineering

    E-print Network

    Haimovich, Alexander

    on Static Fluids, Manometry, Head 2 Molecular Transport, Newton's Law of Viscosity, Shear Viscosity, Non-Newtonian. Prerequisites/Corequisites by Topic: Calculus (prerequisite), Material Balances (prerequisite), Thermodynamics

  6. Risk based ASME Code requirements

    SciTech Connect

    Gore, B.F.; Vo, T.V.; Balkey, K.R.

    1992-09-01

    The objective of this ASME Research Task Force is to develop and to apply a methodology for incorporating quantitative risk analysis techniques into the definition of in-service inspection (ISI) programs for a wide range of industrial applications. An additional objective, directed towards the field of nuclear power generation, is ultimately to develop a recommendation for comprehensive revisions to the ISI requirements of Section XI of the ASME Boiler and Pressure Vessel Code. This will require development of a firm technical basis for such requirements, which does not presently exist. Several years of additional research will be required before this can be accomplished. A general methodology suitable for application to any industry has been defined and published. It has recently been refined and further developed during application to the field of nuclear power generation. In the nuclear application probabilistic risk assessment (PRA) techniques and information have been incorporated. With additional analysis, PRA information is used to determine the consequence of a component rupture (increased reactor core damage probability). A procedure has also been recommended for using the resulting quantified risk estimates to determine target component rupture probability values to be maintained by inspection activities. Structural risk and reliability analysis (SRRA) calculations are then used to determine characteristics which an inspection strategy must posess in order to maintain component rupture probabilities below target values. The methodology, results of example applications, and plans for future work are discussed.

  7. 46 CFR 54.01-2 - Adoption of division 1 of section VIII of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 2 2010-10-01 2010-10-01 false Adoption of division 1 of section VIII of the ASME Boiler and Pressure Vessel Code. 54.01-2 Section 54.01-2 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING PRESSURE VESSELS General Requirements § 54.01-2 Adoption of division 1 of section VIII of the ASME Boiler...

  8. TOPICAL REVIEW: Overview of the lattice Boltzmann method for nano- and microscale fluid dynamics in materials science and engineering

    NASA Astrophysics Data System (ADS)

    Raabe, D.

    2004-11-01

    The article gives an overview of the lattice Boltzmann method as a powerful technique for the simulation of single and multi-phase flows in complex geometries. Owing to its excellent numerical stability and constitutive versatility it can play an essential role as a simulation tool for understanding advanced materials and processes. Unlike conventional Navier-Stokes solvers, lattice Boltzmann methods consider flows to be composed of a collection of pseudo-particles that are represented by a velocity distribution function. These fluid portions reside and interact on the nodes of a grid. System dynamics and complexity emerge by the repeated application of local rules for the motion, collision and redistribution of these coarse-grained droplets. The lattice Boltzmann method, therefore, is an ideal approach for mesoscale and scale-bridging simulations. It is capable to tackling particularly those problems which are ubiquitous characteristics of flows in the world of materials science and engineering, namely, flows under complicated geometrical boundary conditions, multi-scale flow phenomena, phase transformation in flows, complex solid-liquid interfaces, surface reactions in fluids, liquid-solid flows of colloidal suspensions and turbulence. Since the basic structure of the method is that of a synchronous automaton it is also an ideal platform for realizing combinations with related simulation techniques such as cellular automata or Potts models for crystal growth in a fluid or gas environment. This overview consists of two parts. The first one reviews the philosophy and the formal concepts behind the lattice Boltzmann approach and presents also related pseudo-particle approaches. The second one gives concrete examples in the area of computational materials science and process engineering, such as the prediction of lubrication dynamics in metal forming, dendritic crystal growth under the influence of fluid convection, simulation of metal foam processing, flow percolation in confined geometries, liquid crystal hydrodynamics and processing of polymer blends.

  9. 1 Copyright #### by ASME Proceedings of ASME National Heat Transfer Conference

    E-print Network

    Kim, Jungho

    1 Copyright © #### by ASME Proceedings of ASME National Heat Transfer Conference: Las Vegas, NM University of Maryland College Park, MD 20742 ABSTRACT A technique for determining the heat transfer on the far surface of a wall based on measuring the heat transfer and temperature on the near wall

  10. Proceedings of the ASME 2013 Pressure Vessels & Piping Division / HP-2 Conference ASME/PVP 2013

    E-print Network

    Faraon, Andrei

    Proceedings of the ASME 2013 Pressure Vessels & Piping Division / HP-2 Conference ASME/PVP 2013 July 14-18, 2013, Paris, France PVP2013-97148 ON THE ADEQUACY OF SHELL MODELS FOR PREDICTING STRESSES@caltech.edu ABSTRACT This paper analyzes the adequacy of shell models for pre- dicting stresses and strains in thick

  11. A wide array of research opportunities Fluid Dynamics and Aerospace Engineering

    E-print Network

    / Computational Fluid Dynamics Robotics and Control Vision-based Control / Stratified Control Systems / Kinematics://www.nd.edu/~amebio] Design Automation Laboratory [ http://www.nd.edu/~nddal] Robotics and Dynamic Systems Laboratory [ http

  12. 78 FR 37721 - Approval of American Society of Mechanical Engineers' Code Cases

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-24

    ...to the mandatory American Society of Mechanical Engineers (ASME) Boiler and Pressure...Approval of American Society of Mechanical Engineers' Code Cases'' (RIN...Guide Development Branch, Division of Engineering, Office of Nuclear Regulatory...

  13. Technology-based education in thermo-fluids and heat transfer engineering: A status report for 1998

    SciTech Connect

    Aichimayr, H.T.; Kulacki, F.A.; Simon, T.W.; Strykowski, P.J.

    1999-07-01

    The growth of the Internet and the availability of easy to use computational, graphical, and visualization tools has opened a new era for instruction in thermal-fluids engineering and heat transfer. This paper presents a snap shot of current instructional strategies and software/Web-based materials in use across a variety of engineering schools. The survey indicates that Web-based materials are becoming more interactive in nature, and are more deeply embedded in the educational process and the formation of the curriculum. Material presented on the Web and in stand-alone educational software is taking on a modular structure, which increases its utility, and the formats of Web pages for instruction are beginning to display common features. Based on the results of the survey, the authors suggest a development structure for future Web-sites and curricular organization.

  14. 1 Copyright 2009 by ASME Proceedings of PVP2009

    E-print Network

    Tijsseling, A.S.

    -filled pipes with closed ends. At the pipe ends, pressure waves in the liquid interact with stress waves pipe velocity, zu , and axial pipe stress, z , are 1 0 f V P t z + = , (1) Proceedings of the ASME1 Copyright © 2009 by ASME Proceedings of PVP2009 2009 ASME Pressure Vessels and Piping Division

  15. Heat Transfer and Fluid Dynamics Measurements in the Expansion Space of a Stirling Cycle Engine

    NASA Technical Reports Server (NTRS)

    Jiang, Nan; Simon, Terrence W.

    2006-01-01

    The heater (or acceptor) of a Stirling engine, where most of the thermal energy is accepted into the engine by heat transfer, is the hottest part of the engine. Almost as hot is the adjacent expansion space of the engine. In the expansion space, the flow is oscillatory, impinging on a two-dimensional concavely-curved surface. Knowing the heat transfer on the inside surface of the engine head is critical to the engine design for efficiency and reliability. However, the flow in this region is not well understood and support is required to develop the CFD codes needed to design modern Stirling engines of high efficiency and power output. The present project is to experimentally investigate the flow and heat transfer in the heater head region. Flow fields and heat transfer coefficients are measured to characterize the oscillatory flow as well as to supply experimental validation for the CFD Stirling engine design codes. Presented also is a discussion of how these results might be used for heater head and acceptor region design calculations.

  16. Comparisons between measurement and analysis of fluid motion in internal combustion engines

    SciTech Connect

    Witze, P.O.

    1981-10-01

    The Engine Combustion Technology Project was created for the purpose of promoting the development of advanced piston engine concepts by the development of techniques to measure, analyze, and understand the combustion process. The technologies emphasized in the project include laser-based measurement techniques and large-scale computer simulations. Considerable progress has already been achieved by project participants in modeling engine air motion, fuel sprays, and engine combustion phenomena. This milestone report covers one part of that progress, summarizing the current capabilities of multi-dimensional computer codes being developed by the project to predict the behavior of turbulent air motion in an engine environment. Computed results are compared directly with experimental data in six different areas of importance to internal combustion engines: (1) Induction-generated ring-vortex structures; (2) Piston-induced vortex roll-up; (3) Behavior of turbulence during compression; (4) Decay of swirling flow during compression; (5) Decay of swirling flow in a constant volume engine simulator; (6) Exhaust-pipe flow. The computational procedures used include vortex dynamics, rapid distortion theory, and finite difference models employing two-equation and subgrid-scale turbulence models. Although the capability does not yet exist to predict the air motion in an engine from its geometric configuration alone, the results presented show that many flowfield sub-processes can be predicted given well-specified initial and boundary conditions.

  17. 46 CFR 53.01-3 - Adoption of section IV of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... reference; see 46 CFR 53.01-1) as limited, modified, or replaced by specific requirements in this part. The...) MARINE ENGINEERING HEATING BOILERS General Requirements § 53.01-3 Adoption of section IV of the ASME Boiler and Pressure Vessel Code. (a) Heating boilers shall be designed, constructed, inspected,...

  18. 46 CFR 53.01-3 - Adoption of section IV of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... reference; see 46 CFR 53.01-1) as limited, modified, or replaced by specific requirements in this part. The...) MARINE ENGINEERING HEATING BOILERS General Requirements § 53.01-3 Adoption of section IV of the ASME Boiler and Pressure Vessel Code. (a) Heating boilers shall be designed, constructed, inspected,...

  19. 46 CFR 53.01-3 - Adoption of section IV of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... reference; see 46 CFR 53.01-1) as limited, modified, or replaced by specific requirements in this part. The...) MARINE ENGINEERING HEATING BOILERS General Requirements § 53.01-3 Adoption of section IV of the ASME Boiler and Pressure Vessel Code. (a) Heating boilers shall be designed, constructed, inspected,...

  20. 46 CFR 53.01-3 - Adoption of section IV of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... reference; see 46 CFR 53.01-1) as limited, modified, or replaced by specific requirements in this part. The...) MARINE ENGINEERING HEATING BOILERS General Requirements § 53.01-3 Adoption of section IV of the ASME Boiler and Pressure Vessel Code. (a) Heating boilers shall be designed, constructed, inspected,...

  1. 46 CFR 53.01-3 - Adoption of section IV of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... reference; see 46 CFR 53.01-1) as limited, modified, or replaced by specific requirements in this part. The...) MARINE ENGINEERING HEATING BOILERS General Requirements § 53.01-3 Adoption of section IV of the ASME Boiler and Pressure Vessel Code. (a) Heating boilers shall be designed, constructed, inspected,...

  2. Yoram Halevi2 Mechanical Engineering Department,

    E-print Network

    Ray, Asok

    components in complex dynamicalprocesses like advanced aircraft, spacecraft, and autonomous manufacturing scenarios of ICCS. 1 Introduction Complex dynamical processes like advanced aircraft, spacecraftYoram Halevi2 Asok Ray Mem. ASME Mechanical Engineering Department, The Pennsylvania State

  3. Teaching Computer-Aided Design of Fluid Flow and Heat Transfer Engineering Equipment.

    ERIC Educational Resources Information Center

    Gosman, A. D.; And Others

    1979-01-01

    Describes a teaching program for fluid mechanics and heat transfer which contains both computer aided learning (CAL) and computer aided design (CAD) components and argues that the understanding of the physical and numerical modeling taught in the CAL course is essential to the proper implementation of CAD. (Author/CMV)

  4. Department of Mechanical Engineering The Application of Fluid Power to Meet the Needs of Surgical Robotics

    E-print Network

    Wu, Mingshen

    Robotics Devin R. Berg1, Perry Y. Li1, Arthur G. Erdman1, Tianhong Cui1, and Timothy P. Kinney2 1Department of Minnesota, Minneapolis, MN Introduction Robotic surgery promises to produce continued development of a novel fluid powered robotic surgical platform. Unlike current robotic instruments in which a robot

  5. Globally Distributed Engineering Teams in Computational Fluid Dynamics and in Product Development 

    E-print Network

    Schmidt, Susanne R.

    2010-10-12

    Globally distributed engineering teams are a reality in globally operating companies. However, research on teams is often done by psychologists, with a focus on general team building and working processes, and seldom on ...

  6. A method for certification of FRP piping fabricators for ASME B31.3 systems

    SciTech Connect

    Andersen, K.D.

    1996-07-01

    Cost-effective FRP piping is often the material of choice for transport of corrosive chemicals. Plant Managers and Engineers have great concern about the integrity of FRP piping joints and the safety of these systems. A specification requirement, in the bid documents, that all fabricators be Certified by the FRP piping manufacturer is a method to promote successful fabrication. A method is proposed, which is in accordance with ASME B31.3 Piping Code, to train and certify fabricators.

  7. A new cascade-less engine operated from subsonic to hypersonic conditions: designed by computational fluid dynamics of compressible turbulence with chemical reactions

    NASA Astrophysics Data System (ADS)

    Naitoh, Ken; Nakamura, Kazushi; Emoto, Takehiro

    2010-12-01

    By using our computational fluid dynamic models, a new type of single engine capable of operating over a wide range of Mach numbers from subsonic to hypersonic regimes is proposed for airplanes, whereas traditional piston engines, turbojet engines, and scram engines work only under a narrower range of operating conditions. The new engine has no compressors or turbines such as those used in conventional turbojet engines. An important point is its system of super multijets that collide to compress gas for the transonic regime. Computational fluid dynamics is applied to clarify the potential of this engine. The peak pressure at the combustion center is over 2.5 MPa, while that just before ignition is over 1.0 MPa. The maximum power of this engine will be sufficient for actual use. Under the conditions of higher Mach numbers, the main intake passage located in front of the super multijet nozzles, takes in air more. That results in a ram or scramjet engine for supersonic and hypersonic conditions.

  8. Gas engine bottoming cycles with ammonia-water mixtures as working fluid

    SciTech Connect

    Jonsson, M.; Thorin, E.; Svedberg, G.

    1999-07-01

    Gas engines and diesel engines can be used for power generation in small-scale industrial and utility power plants. A bottoming cycle recovering heat from the exhaust gas, charge air, jacket water and lubrication oil can increase the power output of a gas or diesel engine power plant. The current study investigates ammonia-water power cycles as bottoming cycles to natural gas fired gas engines. The engines used in the calculations are 16V25SG and 18V34SG from Wartsila NSD. The configurations of the bottoming processes have been changed in order to achieve better temperature matching in the heat exchangers. The ammonia-water cycles have been compared to a simple Rankine steam cycle. All cycles have been optimized to give maximum power output. The ammonia-water bottoming cycles generate 18--54% more power than a simple Rankine steam cycle. An economic estimation of the bottoming cycles shows that the extra equipment needed for an ammonia-water cycle may be justified by the extra amount of power generated.

  9. Computational Fluid Dynamics Modeling of a Supersonic Nozzle and Integration into a Variable Cycle Engine Model

    NASA Technical Reports Server (NTRS)

    Connolly, Joseph W.; Friedlander, David; Kopasakis, George

    2014-01-01

    This paper covers the development of an integrated nonlinear dynamic simulation for a variable cycle turbofan engine and nozzle that can be integrated with an overall vehicle Aero-Propulso-Servo-Elastic (APSE) model. A previously developed variable cycle turbofan engine model is used for this study and is enhanced here to include variable guide vanes allowing for operation across the supersonic flight regime. The primary focus of this study is to improve the fidelity of the model's thrust response by replacing the simple choked flow equation convergent-divergent nozzle model with a MacCormack method based quasi-1D model. The dynamic response of the nozzle model using the MacCormack method is verified by comparing it against a model of the nozzle using the conservation element/solution element method. A methodology is also presented for the integration of the MacCormack nozzle model with the variable cycle engine.

  10. Computational Fluid Dynamics Modeling of a Supersonic Nozzle and Integration into a Variable Cycle Engine Model

    NASA Technical Reports Server (NTRS)

    Connolly, Joseph W.; Friedlander, David; Kopasakis, George

    2015-01-01

    This paper covers the development of an integrated nonlinear dynamic simulation for a variable cycle turbofan engine and nozzle that can be integrated with an overall vehicle Aero-Propulso-Servo-Elastic (APSE) model. A previously developed variable cycle turbofan engine model is used for this study and is enhanced here to include variable guide vanes allowing for operation across the supersonic flight regime. The primary focus of this study is to improve the fidelity of the model's thrust response by replacing the simple choked flow equation convergent-divergent nozzle model with a MacCormack method based quasi-1D model. The dynamic response of the nozzle model using the MacCormack method is verified by comparing it against a model of the nozzle using the conservation element/solution element method. A methodology is also presented for the integration of the MacCormack nozzle model with the variable cycle engine.

  11. Improvement of ASME NH for Grade 91

    SciTech Connect

    Bernard Riou

    2007-10-09

    This report has been prepared in the context of Task 3 of the ASME/DOE Gen IV material project. It has been identified that creep-fatigue evaluation procedures presently available in ASME (1) and RCC-MR (2) have been mainly developed for austenitic stainless steels and may not be suitable for cyclic softening materials such as mod 9 Cr 1 Mo steel (grade 91). The aim of this document is, starting from experimental test results, to perform a review of the procedures and, if necessary, provide recommendations for their improvements.

  12. Computational Fluid Dynamics (CFD) Image of Hyper-X Research Vehicle at Mach 7 with Engine Operating

    NASA Technical Reports Server (NTRS)

    1997-01-01

    This computational fluid dynamics (CFD) image shows the Hyper-X vehicle at a Mach 7 test condition with the engine operating. The solution includes both internal (scramjet engine) and external flow fields, including the interaction between the engine exhaust and vehicle aerodynamics. The image illustrates surface heat transfer on the vehicle surface (red is highest heating) and flowfield contours at local Mach number. The last contour illustrates the engine exhaust plume shape. This solution approach is one method of predicting the vehicle performance, and the best method for determination of vehicle structural, pressure and thermal design loads. The Hyper-X program is an ambitious series of experimental flights to expand the boundaries of high-speed aeronautics and develop new technologies for space access. When the first of three aircraft flies, it will be the first time a non-rocket engine has powered a vehicle in flight at hypersonic speeds--speeds above Mach 5, equivalent to about one mile per second or approximately 3,600 miles per hour at sea level. Hyper-X, the flight vehicle for which is designated as X-43A, is an experimental flight-research program seeking to demonstrate airframe-integrated, 'air-breathing' engine technologies that promise to increase payload capacity for future vehicles, including hypersonic aircraft (faster than Mach 5) and reusable space launchers. This multiyear program is currently underway at NASA Dryden Flight Research Center, Edwards, California. The Hyper-X schedule calls for its first flight later this year (2000). Hyper-X is a joint program, with Dryden sharing responsibility with NASA's Langley Research Center, Hampton, Virginia. Dryden's primary role is to fly three unpiloted X-43A research vehicles to validate engine technologies and hypersonic design tools as well as the hypersonic test facility at Langley. Langley manages the program and leads the technology development effort. The Hyper-X Program seeks to significantly expand the speed boundaries of air-breathing propulsion by being the first aircraft to demonstrate an airframe-integrated, scramjet-powered free flight. Scramjets (supersonic-combustion ramjets) are ramjet engines in which the airflow through the whole engine remains supersonic. Scramjet technology is challenging because only limited testing can be performed in ground facilities. Long duration, full-scale testing requires flight research. Scramjet engines are air-breathing, capturing their oxygen from the atmosphere. Current spacecraft, such as the Space Shuttle, are rocket powered, so they must carry both fuel and oxygen for propulsion. Scramjet technology-based vehicles need to carry only fuel. By eliminating the need to carry oxygen, future hypersonic vehicles will be able to carry heavier payloads. Another unique aspect of the X-43A vehicle is the airframe integration. The body of the vehicle itself forms critical elements of the engine. The forebody acts as part of the intake for airflow and the aft section serves as the nozzle. The X-43A vehicles were manufactured by Micro Craft, Inc., Tullahoma, Tennessee. Orbital Sciences Corporation, Chandler, Arizona, built the Pegasus rocket booster used to launch the X-43 vehicles. For the Dryden research flights, the Pegasus rocket booster and attached X-43 will be air launched by Dryden's B-52 'Mothership.' After release from the B-52, the booster will accelerate the X-43A vehicle to the established test conditions (Mach 7 to 10) at an altitude of approximately 100,000 feet where the X-43 will separate from the booster and fly under its own power and preprogrammed control.

  13. Advanced airbreathing engine lubricants study with a tetraester fluid and a synthetic paraffinic oil at 492 K (425 F)

    NASA Technical Reports Server (NTRS)

    Zaretsky, E. V.; Bamberger, E. N.

    1972-01-01

    Groups of 120-mm-bore angular-contact ball bearings made from AISI M-50 steel were fatigue tested with a tetraester and a synthetic paraffinic oil at a bearing temperature of 492 K (425 F) in an air environment. Bearing life exceeded AFBMA-predicted (catalog) life by factors in excess of 4 and 10 for the tetraester and synthetic paraffinic fluids, respectively. The final viscosities after 500 hours of operation were 14 and 6 times the initial values, respectively. During the same time period, when the test oil is replaced at a rate approximating the replenishment rate in actual commerical engine usage, no significant increase in lubricant viscosity with time was observed.

  14. Designing and Creating a Set of New Lab Experiments for a Traditional Fluid Mechanics Course in Civil Engineering

    NASA Astrophysics Data System (ADS)

    Budny, Dan

    2013-11-01

    Many fluids lab facilities and their associated student experiences were built back in the 1960-1970 time frames. They typically consisted of large facilities that included wind tunnels, flumes, wet wells, pump stations, etc. Today these labs are physically and pedagogically out dated and the need for lab space is forcing the closing of large scale labs. This is the same basic problem within the Swanson School of Engineering at the University of Pittsburgh. Thus we have replaced all the old equipment and lab experiences with small bench top experiments with a focus on applying the large body of knowledge associate with better student learning experiences. This paper will describe the concepts behind the design of the new experiments and the learning improvements discovered as a result of moving from a few large experiments to a larger number of smaller scale experiments.

  15. Transcytosis in the blood–cerebrospinal fluid barrier of the mouse brain with an engineered receptor/ligand system

    PubMed Central

    Méndez-Gómez, Héctor R; Galera-Prat, Albert; Meyers, Craig; Chen, Weijun; Singh, Jasbir; Carrión-Vázquez, Mariano; Muzyczka, Nicholas

    2015-01-01

    Crossing the blood–brain and the blood–cerebrospinal fluid barriers (BCSFB) is one of the fundamental challenges in the development of new therapeutic molecules for brain disorders because these barriers prevent entry of most drugs from the blood into the brain. However, some large molecules, like the protein transferrin, cross these barriers using a specific receptor that transports them into the brain. Based on this mechanism, we engineered a receptor/ligand system to overcome the brain barriers by combining the human transferrin receptor with the cohesin domain from Clostridium thermocellum, and we tested the hybrid receptor in the choroid plexus of the mouse brain with a dockerin ligand. By expressing our receptor in choroidal ependymocytes, which are part of the BCSFB, we found that our systemically administrated ligand was able to bind to the receptor and accumulate in ependymocytes, where some of the ligand was transported from the blood side to the brain side. PMID:26491705

  16. European Congress on Computational Methods in Applied Sciences and Engineering ECCOMAS Computational Fluid Dynamics Conference 2001

    E-print Network

    Müller,Bernhard

    is analogous to inte- gration by parts in the continuous energy estimate. They have been applied to linearEuropean Congress on Computational Methods in Applied Sciences and Engineering ECCOMAS DIFFERENCE METHOD FOR LOW MACH NUMBER AEROACOUSTICS Bernhard M¨uller Department of Scientific Computing

  17. Enhancing Student Learning in Food Engineering Using Computational Fluid Dynamics Simulations

    ERIC Educational Resources Information Center

    Wong, Shin Y.; Connelly, Robin K.; Hartel, Richard W.

    2010-01-01

    The current generation of students coming into food science and engineering programs is very visually oriented from their early experiences. To increase their interest in learning, new and visually appealing teaching materials need to be developed. Two diverse groups of students may be identified based on their math skills. Food science students…

  18. Structure and Dynamics of Fluids in Microporous and Mesoporous Earth and Engineered Materials

    NASA Astrophysics Data System (ADS)

    Cole, David R.; Mamontov, Eugene; Rother, Gernot

    The behavior of liquids in confined geometries (pores, fractures) typically differs, due to the effects of large internal surfaces and geometrical confinement, from their bulk behavior in many ways. Phase transitions (i.e., freezing and capillary condensation), sorption and wetting, and dynamical properties, including diffusion and relaxation, may be modified, with the strongest changes observed for pores ranging in size from <2 to 50 nm—the micro- and mesoporous regimes. Important factors influencing the structure and dynamics of confined liquids include the average pore size and pore size distribution, the degree of pore interconnection, and the character of the liquid-surface interaction. While confinement of liquids in hydrophobic matrices, such as carbon nanotubes, or near the surfaces of mixed character, such as many proteins, has also been an area of rapidly growing interest, the confining matrices of interest to earth and materials sciences usually contain oxide structural units and thus are hydrophilic. The pore size distribution and the degree of porosity and inter-connection vary greatly amongst porous matrices. Vycor, xerogels, aerogels, and rocks possess irregular porous structures, whereas mesoporous silicas (e.g., SBA-15, MCM-41, MCM-48), zeolites, and layered systems, for instance clays, have high degrees of internal order. The pore type and size may be tailored by means of adjusting the synthesis regimen. In clays, the interlayer distance may depend on the level of hydration. Although studied less frequently, matrices such as artificial opals and chrysotile asbestos represent other interesting examples of ordered porous structures. The properties of neutrons make them an ideal probe for comparing the properties of bulk fluids with those in confined geometries. In this chapter, we provide a brief review of research performed on liquids confined in materials of interest to the earth and material sciences (silicas, aluminas, zeolites, clays, rocks, etc.), emphasizing those neutron scattering techniques that assess both structural modification and dynamical behavior. Quantitative understanding of the complex solid-fluid interactions under different thermodynamic situations will impact both the design of better substrates for technological applications (e.g., chromatography, fluid capture, storage and release, and heterogeneous catalysis) as well as our fundamental understanding of processes encountered in the environment (i.e., fluid and waste mitigation, carbon sequestration, etc.).

  19. Sructure and dynamics of fluids in micropous and mesoporous earth and engineered materials

    SciTech Connect

    Cole, David R; Mamontov, Eugene; Rother, Gernot

    2009-01-01

    The behavior of liquids in confined geometries (pores, fractures) typically differs, due to the effects of large internal surfaces and geometri-cal confinement, from their bulk behavior in many ways. Phase transitions (i.e., freezing and capillary condensation), sorption and wetting, and dy-namical properties, including diffusion and relaxation, may be modified, with the strongest changes observed for pores ranging in size from <2 nm to 50 nm the micro- and mesoporous regimes. Important factors influ-encing the structure and dynamics of confined liquids include the average pore size and pore size distribution, the degree of pore interconnection, and the character of the liquid-surface interaction. While confinement of liq-uids in hydrophobic matrices, such as carbon nanotubes, or near the sur-faces of mixed character, such as many proteins, has also been an area of rapidly growing interest, the confining matrices of interest to earth and ma-terials sciences usually contain oxide structural units and thus are hydro-philic. The pore size distribution and the degree of porosity and inter-connection vary greatly amongst porous matrices. Vycor, xerogels, aerogels, and rocks possess irregular porous structures, whereas mesopor-ous silicas (e.g., SBA-15, MCM-41, MCM-48), zeolites, and layered sys-tems, for instance clays, have high degrees of internal order. The pore type and size may be tailored by means of adjusting the synthesis regimen. In clays, the interlayer distance may depend on the level of hydration. Al-though studied less frequently, matrices such as artificial opals and chry-sotile asbestos represent other interesting examples of ordered porous structures. The properties of neutrons make them an ideal probe for com-paring the properties of bulk fluids with those in confined geometries. In this chapter, we provide a brief review of research performed on liquids confined in materials of interest to the earth and material sciences (silicas, aluminas, zeolites, clays, rocks, etc.), emphasizing those neutron scattering techniques which assess both structural modification and dynamical behav-ior. Quantitative understanding of the complex solid-fluid interactions under different thermodynamic situations will impact both the design of bet-ter substrates for technological applications (e.g., chromatography, fluid capture, storage and release, and heterogeneous catalysis) as well as our fundamental understanding of processes encountered in the environment (i.e., fluid and waste mitigation, carbon sequestration, etc.).

  20. A Design-Oriented Approach to the Integration of Thermodynamics, Fluid Mechanics, and Heat Transfer in the Undergraduate Mechanical Engineering Curriculum.

    ERIC Educational Resources Information Center

    Whale, MacMurray D.; Cravalho, Ernest G.

    This paper describes two parallel efforts that attempt to implement a new approach to the teaching of thermal fluids engineering. In one setting, at the Massachusetts Institute of Technology (MIT), the subject matter is integrated into a single year-long subject at the introductory level. In the second setting, at Victoria (British Columbia,…

  1. Simulations for Complex Fluid Flow Problems from Berkeley Lab's Center for Computational Sciences and Engineering (CCSE)

    DOE Data Explorer

    The Center for Computational Sciences and Engineering (CCSE) develops and applies advanced computational methodologies to solve large-scale scientific and engineering problems arising in the Department of Energy (DOE) mission areas involving energy, environmental, and industrial technology. The primary focus is in the application of structured-grid finite difference methods on adaptive grid hierarchies for compressible, incompressible, and low Mach number flows. The diverse range of scientific applications that drive the research typically involve a large range of spatial and temporal scales (e.g. turbulent reacting flows) and require the use of extremely large computing hardware, such as the 153,000-core computer, Hopper, at NERSC. The CCSE approach to these problems centers on the development and application of advanced algorithms that exploit known separations in scale; for many of the application areas this results in algorithms are several orders of magnitude more efficient than traditional simulation approaches.

  2. Reaction Engineering International and Pacific Northwest Laboratory staff exchange: Addressing computational fluid dynamics needs of the chemical process industry

    SciTech Connect

    Fort, J.A.

    1995-07-01

    Staff exchanges, such as the one described in this report, are intended to facilitate communications and collaboration among scientists and engineers at Department of Energy (DOE) laboratories, in US industry, and academia. Funding support for these exchanges is provided by the DOE, Office of Energy Research, Laboratory Technology Transfer Program. Funding levels for each exchange typically range from $20,000 to $40,000. The exchanges offer the opportunity for the laboratories to transfer technology and expertise to industry, gain a perspective to industry`s problems, and develop the basis for further cooperative efforts through Cooperative Research and Development Agreements (CRADAS) or other mechanisms. Information in this report on the staff exchange of the Pacific Northwest Laboratory (PNL) staff with Reaction Engineering International (REI) includes the significant accomplishments, significant problems, industry benefits realized, recommended follow-on work and potential benefit of that work. The objectives of this project were as follows: Work with REI to develop an understanding of the computational fluid dynamics (CFD) needs of the chemical process industry; assess the combined capabilities of the PNL and REI software analysis tools to address these needs; and establish a strategy for a future programmatically funded, joint effort to develop a new CFD tool for the chemical process industry.

  3. Fluid dynamic modeling of a free piston engine with labyrinth seals

    NASA Astrophysics Data System (ADS)

    Larjola, Jaakko; Honkatukia, Juha; Sallinen, Petri; Backman, Jari

    2010-04-01

    Preliminary design and simulation of a free piston engine suitable for small-scale energy production in distributed energy systems is presented in this paper. The properties, particularly the properties of gas seals of the engine are simulated using a simulation program developed for this case, and the results are utilized in preliminary main design parameter selection. The engine simulation program was developed by combining and modifying the source codes of the simulation and calculation programs obtained from Helsinki University of Technology, Tampere University of Technology, and Lappeenranta University of Technology. Because of the contact-free labyrinth seal used in the piston, the efficiency of the motor is lower than the efficiency of a conventional motor with oil lubricated piston rings. On the other hand, the lack of bearing losses, and the lack of losses associated with a crankshaft system and a gearbox, as well as the lack of lubrication oil expenses, compensates this effect. As a net result, this new motor would perform slightly better than the conventional one. Being completely oil-free, it is very environmentally friendly, and its exhaust gases are completely free of oil residuals which are causing problems in normal gas motors.

  4. Copyright 2006 by ASME1 INTRODUCTION

    E-print Network

    Gefen, Amit

    Copyright © 2006 by ASME1 INTRODUCTION Deep pressure sores (DPS) under bony prominences prevention. Moreover, in previous clinical studies that focused on pressure sore prevention, interface pressures between the patients' buttocks and the cushions were measured and reported as a criterion

  5. Copyright 2006 by ASME1 INTRODUCTION

    E-print Network

    Gefen, Amit

    Copyright © 2006 by ASME1 INTRODUCTION Pressure sores are injuries in deep or superficial soft, which may cause deep pressure sore (DPS) [1-3]. Since direct, non-invasive measurements should be considered [2,3]. Using animal models of pressure sores, we previously showed that injured

  6. Quantitative, single shot, two-dimensional spontaneous Raman measurements for fluid mechanics and engine applications

    NASA Astrophysics Data System (ADS)

    Kyritsis, Dimitrios Constantinou

    Spontaneous Raman Scattering was used for quantitative, two-dimensional, single-shot measurements of species concentration in optically accessible confinements and in an experimental single-cylinder internal combustion engine. The study comprised three parts. In the first part, the technique was used for methane concentration measurements in a laminar jet issuing into compressed nitrogen (10 bar, 293 K). The injection Reynolds number was 550. Initial results showed unexpected structures in the acquired concentration profiles. Thus, the steadiness of the laminar flow was confirmed with high speed shadowgraph movies and laser induced fluorescence measurements. Eventually, it was proven that the structures were due to characteristics of the camera system. A technique was then devised for the proper acquisition and processing of data and spatial resolution of 500 mum was achieved. Methane number density equal to 12% of the number density of pure methane (0.247E+26 molecules/msp3) was then measured with a signal-to-noise ratio of approximately 3. The measurements were compared with the results of direct numerical simulation of the flow field. In the second part, measurements in a laminar hydrogen jet were taken. Because of the reduced Raman signal of hydrogen, the incident laser power was increased by installing the pressurized chamber within the laser cavity. This yielded an increase in power by a factor of 2.5. For the measurement of the laser sheet intensity in the laser cavity, insertion of a fluorescent dye cell and Rayleigh scattering were used and evaluated comparatively. The precise location of the waist of the laser sheet was determined by trial and error. The spatial resolution of the measurements was 650 mum and a number density of 0.371E+26 hydrogen molecules/msp3 was measured with a signal-to-noise ratio of 3. The measurements were again compared with results of direct numerical simulation. In the third part, the feasibility of two-dimensional single-shot Spontaneous Raman measurements in an engine cylinder was established. Measurements of methane concentration after direct injection in the cylinder of an experimental single-cylinder engine were taken. The engine was not fired to avoid laser induced incandescence interference. The spatial resolution was limited to 800 mum by the thickness of the laser sheet. Fast mixing of the methane jet was documented but a precise evaluation of the equivalence ratio was beyond the resolution of this first attempt. Finally, existing hardware for data acquisition and algorithms for two dimensional data reduction were reviewed and recommendations were made for the extraction of quantitative information from two-dimensional, single-shot Spontaneous Raman signals which are weak and noisy.

  7. COPYRIGHT 2003 by ASME IGTI/ASME TURBO EXPO 2003

    E-print Network

    Camci, Cengiz

    and Levent Kavurmacioglu 3 Turbomachinery Heat Transfer Laboratory Department of Aerospace Engineering flows in turbomachinery systems. The acceleration of the flow into the entrance region of the tip gap

  8. Seals/Secondary Fluid Flows Workshop 1997; Volume II: HSR Engine Special Session

    NASA Technical Reports Server (NTRS)

    Hendricks, Robert C. (Editor)

    2006-01-01

    The High Speed Civil Transport (HSCT) will be the largest engine ever built and operated at maximum conditions for long periods of time. It is being developed collaboratively with NASA, FAA, Boeing-McDonnell Douglas, Pratt & Whitney, and General Electric. This document provides an initial step toward defining high speed research (HSR) sealing needs. The overview for HSR seals includes defining objectives, summarizing sealing and material requirements, presenting relevant seal cross-sections, and identifying technology needs. Overview presentations are given for the inlet, turbomachinery, combustor and nozzle. The HSCT and HSR seal issues center on durability and efficiency of rotating equipment seals, structural seals and high speed bearing and sump seals. Tighter clearances, propulsion system size and thermal requirements challenge component designers.

  9. Detonation Engine Performance Comparison Using First and Second Law Analyses

    E-print Network

    Texas at Arlington, University of

    cycle engines. Since the RDWE is ideally capable of operation with a steady state inlet and nozzle/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit 25 - 28 July 2010, Nashville, TN AIAA 2010-7040 Copyright © 2010

  10. Modeling In Vivo Interactions of Engineered Nanoparticles in the Pulmonary Alveolar Lining Fluid

    PubMed Central

    Mukherjee, Dwaipayan; Porter, Alexandra; Ryan, Mary; Schwander, Stephan; Chung, Kian Fan; Tetley, Teresa; Zhang, Junfeng; Georgopoulos, Panos

    2015-01-01

    Increasing use of engineered nanomaterials (ENMs) in consumer products may result in widespread human inhalation exposures. Due to their high surface area per unit mass, inhaled ENMs interact with multiple components of the pulmonary system, and these interactions affect their ultimate fate in the body. Modeling of ENM transport and clearance in vivo has traditionally treated tissues as well-mixed compartments, without consideration of nanoscale interaction and transformation mechanisms. ENM agglomeration, dissolution and transport, along with adsorption of biomolecules, such as surfactant lipids and proteins, cause irreversible changes to ENM morphology and surface properties. The model presented in this article quantifies ENM transformation and transport in the alveolar air to liquid interface and estimates eventual alveolar cell dosimetry. This formulation brings together established concepts from colloidal and surface science, physics, and biochemistry to provide a stochastic framework capable of capturing essential in vivo processes in the pulmonary alveolar lining layer. The model has been implemented for in vitro solutions with parameters estimated from relevant published in vitro measurements and has been extended here to in vivo systems simulating human inhalation exposures. Applications are presented for four different ENMs, and relevant kinetic rates are estimated, demonstrating an approach for improving human in vivo pulmonary dosimetry. PMID:26240755

  11. Investigation of Respiratory and Dermal Symptoms Associated with Metal Working Fluids at an Aircraft Engine Manufacturing Facility

    PubMed Central

    Meza, Francisco; Chen, Lilia; Hudson, Naomi

    2015-01-01

    Background Each year, 1.2 million metalworkers are exposed to metalworking fluids (MWFs), which can cause dermal and respiratory disease. The National Institute for Occupational Safety and Health (NIOSH) conducted a health hazard evaluation of MWF exposures at an aircraft engine manufacturing facility. The objectives were to determine employee exposures to endotoxin and MWFs in the air, characterize symptoms experienced by employees working with MWFs, compare them to symptoms of employees unexposed to MWFs, and make recommendations for reducing exposures based on results. Methods 407 workers were categorized as MWF exposed or MWF unexposed and completed questionnaires. Estimated prevalence ratios (PR) of dermatitis, asthma, and work-related asthma (WRA) symptoms were calculated. Airborne concentrations of MWF and endotoxin were measured, and work practices observed. Results MWF exposed workers had a significantly higher prevalence of dermatitis on wrists/forearms (PR 2.59; 95% CI 1.22, 5.46), asthma symptoms (PR 1.49; 95% CI 1.05, 2.13) and WRA symptoms (PR 2.10; 95% CI 1.22, 3.30) than unexposed workers. Airborne concentrations of MWF were below the NIOSH recommended exposure limit (REL) for MWF aerosols (thoracic particulate mass). Conclusions Despite MWF exposures below the NIOSH REL, exposed workers had a higher prevalence of asthma, WRA, and dermatitis symptoms than unexposed workers. Recommendations to reduce exposure included configuring mist collectors to automatically turn on when the machine is in use, and enforcing enclosure use. PMID:24122918

  12. 78 FR 37721 - Approval of American Society of Mechanical Engineers' Code Cases

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-24

    ... Engineers' Code Cases AGENCY: Nuclear Regulatory Commission. ACTION: Draft regulatory guides; request for... regulatory guides (DG), DG-1230, ``Design, Fabrication and Materials Code Case Acceptability, ASME Section III''; DG-1231, ``Inservice Inspection Code Case Acceptability, ASME Section XI, Division 1''; and...

  13. 1 Copyright 2008 by ASME Proceedings of PVP 2008

    E-print Network

    Fatemi, Ali

    1 Copyright © 2008 by ASME Proceedings of PVP 2008 2008 ASME PRESSURE VESSELS AND PIPING CONFERENCE OF STAINLESS STEEL 304L INCLUDING MEAN STRESS AND PRE-STRAINING EFFECTS Jean-Christophe Le Roux Département-straining and mean stress were investigated and it was observed that these parameters influence both deformation

  14. Fluid delivery control system

    DOEpatents

    Hoff, Brian D.; Johnson, Kris William; Algrain, Marcelo C.; Akasam, Sivaprasad

    2006-06-06

    A method of controlling the delivery of fluid to an engine includes receiving a fuel flow rate signal. An electric pump is arranged to deliver fluid to the engine. The speed of the electric pump is controlled based on the fuel flow rate signal.

  15. Fluid Power Technician

    ERIC Educational Resources Information Center

    Moore, Pam

    2008-01-01

    Fluid power technicians, sometimes called hydraulic and pneumatic technicians, work with equipment that utilizes the pressure of a liquid or gas in a closed container to transmit, multiply, or control power. Working under the supervision of an engineer or engineering staff, they assemble, install, maintain, and test fluid power equipment.…

  16. Field Observations of Fluid Transport in a Complex Heterogeneous Vadose Zone at the Idaho National Engineering and Environmental Laboratory (INEEL)

    NASA Astrophysics Data System (ADS)

    Baker, K.; Hull, L.; Mattson, E.; McLing, T.

    2003-12-01

    Predicting fluid and contaminant transport in the vadose zone near the Idaho Nuclear Technology and Engineering Center (INTEC) at the INEEL has been problematic due to the complex geology underlying the site. In an attempt to better understand the controlling mechanism of subsurface fluid transport, a system of monitoring instruments were installed in boreholes around the perimeter of newly constructed percolation ponds, consisting of 2 cells each approximately 160,000 ft2 in area. The instrumented region surrounding the ponds has been designated as the Vadose Zone Research Park (VZRP). Continuous discharge to the south cell began in October 2002 at an average flux rate of 1.5 million gallons per day and continued until July 2003 at which time the discharge was switched to the north cell. Hydraulic data were collected nearly continuously, monitoring hydraulic responses to discharge events to both cells. Discharge to the south cell resulted in rapid vertical percolation until reaching the surficial gravel/basalt interface (at about 60 ft below ground surface) at which time rapid lateral transport was observed in a southern direction. A near steady state of water levels was reached during this 10-month period. Switching discharge location only 100 feet to the north cell drastically altered hydrological conditions and flow paths within the subsurface. Recharge was observed in several new locations, while some locations ceased receiving water from the ponds entirely. Other locations temporarily drained, then received "new water" from alternate flow paths a few days later. Prior to switching discharge locations, 3 wells were installed in the north cell at depths of 7 ft, 12 ft, and 19 ft below ground surface. The wells were instrumented with electrical conductivity probes to monitor discharge from the INTEC facility, which receives a high conductivity spike every 12 hours from water softener regeneration. Field observations show that water reached the 7 ft well within a couple hours after the switch, while the other 2 wells remain dry even after one month. Based on these data, it appears that discharge to the north cell percolates vertically to a depth of approximately 10 ft before reaching a low permeability zone, which diverts flow laterally in a northern direction. Field observations of hydrological data indicate that initial water arrival times and locations appear to be controlled by low permeability zones and fast pathways. Arrival progression was neither vertically nor laterally sequential. Importantly, field observations indicate that minor transients in discharge flux and/or location resulted in extreme changes in fluid transport behavior. Based on these observations, it is apparent that our original steady-state conceptual model needs to be modified to incorporate not only lithologic complexities, but also temporal changes in discharge location and flux. Continued field monitoring combined with ongoing tracer testing at the VZRP is aimed at providing the information needed to improve predictive models designed specifically for complex heterogeneous subsurface environments.

  17. Start Up Research Effort in Fluid Mechanics. Advanced Methods for Acoustic and Thrust Benefits for Aircraft Engine Nozzle

    NASA Technical Reports Server (NTRS)

    White, Samuel G.; Gilinsky, Mikhail M.

    1997-01-01

    In accordance with the project plan for the report period in the proposal titled above, HU and FML teams investigated two sets of concepts for reduction of noise and improvement in efficiency for jet exhaust nozzles of aircraft engines and screws for mixers, fans, propellers and boats. The main achievements in the report period are: (a) Publication of the paper in the AIAA Journal, which described our concepts and some results. (b) The Award in the Civil Research and Development Foundation (CRDF) competition. This 2 year grant for Hampton University (HU) and Central AeroHydrodynamic Institute (TSAGI, Moscow, Russia) supports the research implementation under the current NASA FAR grant. (c) Selection for funding by NASA HQ review panel of the Partnership Awards Concept Paper. This two year grant also will support our current FAR grant. (d) Publication of a Mobius Strip concept in NASA Technical Briefs, June, 1996, and a great interest of many industrial companies in this invention. Successful experimental results with the Mobius shaped screw for mixers, which save more than 30% of the electric power by comparison with the standard screws. Creation of the scientific-popular video-film which can be used for commercial and educational purposes. (e) Organization work, joint meetings and discussions of the NASA LARC JNL Team and HU professors and administration for the solution of actual problems and effective work of the Fluid Mechanics Laboratory at Hampton University. In this report the main designs are enumerated. It also contains for both concept sets: (1) the statement of the problem for each design, some results, publications, inventions, patents, our vision for continuation of this research, and (2) present and expected problems in the future.

  18. Application of the ASME code in the design of the GA-4 and GA-9 casks

    SciTech Connect

    Mings, W.J.; Koploy, M.A.

    1992-08-01

    General Atomics (GA) is developing two spent fuel shipping casks for transport by legal weight truck (LWT). The casks are designed to the loading, environmental conditions and safety requirements defined in Title 10 of the Code of Federal Regulations, Part 71 (10CFR71). To ensure that all components of the cask meet the 10CFR71 rules, GA established structural design criteria for each component based on NRC Regulatory Guides and the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code). This paper discusses the criteria used for different cask components, how they were applied and the conservatism and safety margins built into the criteria and assumption.

  19. Application of the ASME code in the design of the GA-4 and GA-9 casks

    SciTech Connect

    Mings, W.J. ); Koploy, M.A. )

    1992-01-01

    General Atomics (GA) is developing two spent fuel shipping casks for transport by legal weight truck (LWT). The casks are designed to the loading, environmental conditions and safety requirements defined in Title 10 of the Code of Federal Regulations, Part 71 (10CFR71). To ensure that all components of the cask meet the 10CFR71 rules, GA established structural design criteria for each component based on NRC Regulatory Guides and the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code). This paper discusses the criteria used for different cask components, how they were applied and the conservatism and safety margins built into the criteria and assumption.

  20. An investigation of fluid flow during induction stroke of a water analog model of an IC engine using an innovative optical velocimetry concept: LIPA

    NASA Technical Reports Server (NTRS)

    Stier, Bernd; Falco, R. E.

    1994-01-01

    Optical measurements on an axisymmetrical quartz component engine research model were made to evaluate the flow field encountered during induction. The measurement technique is LIPA (Laser Induced Photochemical Anemometry), a non-intrusive velocimetry concept that provides an investigator of fluid flow with a tool to attain planar information about three-dimensional velocity and vorticity vectors in a single measurement step. The goal of this investigation is to further develop this measurement technique and apply it to study the induction stroke of a water analog model of a four-stroke internal combustion engine. The research conducted in the water analog model is a fundamental scientific inquiry into the flow fields that develop in the induction stroke of an engine at idling engine speeds. As this is the first investigation of its kind using LIPA technique, our goal has been to quantify, in a preliminary manner, the flow field features that develop during the intake stroke. In the process a more comprehensive understanding of the flow field features was developed, and tied to the quantification. The study evaluated the flow field of the intake stroke by estimating fields of velocity and vorticity. On the basis of these data, information about fluid dynamics during induction at engine speeds of 10, 20, and 30 RPM (corresponding to 170, 340, and 510 RPM respectively, when air is the flowing medium) for three different valve lifts was obtained. The overall development of the flow field, its energy content (kinetic, fluctuation) for the different settings of the engine parameters, vorticity information, and cyclic variations have been quantified. These have been discussed in terms of mixing performance.

  1. Electrorheological fluids

    SciTech Connect

    Halsey, T.C.; Martin, J.E.

    1993-10-01

    An electrorheological fluid is a substance whose form changes in the presence of electric fields. Depending on the strength of the field to which it is subjected, an electrorheological fluid can run freely like water, ooze like honey or solidify like gelatin. Indeed, the substance can switch from ne state to another within a few milliseconds. Electrorheological fluids are easy to make; they consist of microscopic particles suspended in an insulating liquid. Yet they are not ready for most commercial applications. They tend to suffer from a number of problems, including structural weakness as solids, abrasiveness as liquids and chemical breakdown, especially at high temperatures. Automotive engineers could imagine, for instance, constructing an electrorheological clutch. It was also hoped that electrorheological fluids would lead to valveless hydraulic systems, in which solidifying fluid would shut off flow through a thin section of pipe. Electrorheological fluids also offer the possibility of a shock absorber that provides response times of milliseconds and does not require mechanical adjustments. 3 refs.

  2. Enhancing the Connection to Undergraduate Engineering Students: A Hands-On and Team-Based Approach to Fluid Mechanics

    ERIC Educational Resources Information Center

    Wei, Tie; Ford, Julie

    2015-01-01

    This article provides information about the integration of innovative hands-on activities within a sophomore-level Fluid Mechanics course at New Mexico Tech. The course introduces students to the fundamentals of fluid mechanics with emphasis on teaching key equations and methods of analysis for solving real-world problems. Strategies and examples…

  3. Toward improved durability in advanced aircraft engine hot sections; Proceedings of the Thirty-third ASME International Gas Turbine and Aeroengine Congress and Exposition, Amsterdam, Netherlands, June 5-9, 1988

    NASA Technical Reports Server (NTRS)

    Sokolowski, Daniel E. (editor)

    1988-01-01

    The present conference on durability improvement methods for advanced aircraft gas turbine hot-section components discusses NASA's 'HOST' project, advanced high-temperature instrumentation for hot-section research, the development and application of combustor aerothermal models, and the evaluation of a data base and numerical model for turbine heat transfer. Also discussed are structural analysis methods for gas turbine hot section components, fatigue life-prediction modeling for turbine hot section materials, and the service life modeling of thermal barrier coatings for aircraft gas turbine engines.

  4. The First ASME Code Stamped Cryomodule at SNS

    SciTech Connect

    Howell, M P; Crofford, M T; Douglas, D L; Kim, S -H; Steward, S T; Strong, W H; Afanador, R; Hannah, B S; Saunders, J

    2012-07-01

    The first spare cryomodule for the Spallation Neutron Source (SNS) has been designed, fabricated, and tested by SNS personnel. The approach to design for this cryomodule was to hold critical design features identical to the original design such as bayonet positions, coupler positions, cold mass assembly, and overall footprint. However, this is the first SNS cryomodule that meets the pressure requirements put forth in the 10 CFR 851: Worker Safety and Health Program. The most significant difference is that Section VIII of the ASME Boiler and Pressure Vessel Code was applied to the vacuum vessel of this cryomodule. Applying the pressure code to the helium vessels within the cryomodule was considered. However, it was determined to be schedule prohibitive because it required a code case for materials that are not currently covered by the code. Good engineering practice was applied to the internal components to verify the quality and integrity of the entire cryomodule. The design of the cryomodule, fabrication effort, and cryogenic test results will be reported in this paper.

  5. Magnetically stimulated fluid flow patterns

    SciTech Connect

    Martin, Jim; Solis, Kyle

    2014-03-06

    Sandia National Laboratories' Jim Martin and Kyle Solis explain research on the effects of magnetic fields on fluid flows and how they stimulate vigorous flows. Fluid flow is a necessary phenomenon in everything from reactors to cooling engines in cars.

  6. Magnetically stimulated fluid flow patterns

    ScienceCinema

    Martin, Jim; Solis, Kyle

    2014-08-06

    Sandia National Laboratories' Jim Martin and Kyle Solis explain research on the effects of magnetic fields on fluid flows and how they stimulate vigorous flows. Fluid flow is a necessary phenomenon in everything from reactors to cooling engines in cars.

  7. Computational Science and Engineering

    E-print Network

    Giger, Christine

    Computational Science and Engineering Research Profile The Computational Science and Engineering and Process Engineering Computational Science and Engineering Laboratory Prof. Dr. Petros Koumoutsakos petros in complex liquids ­ Nanoscale heat transfer + Nanoscale Fluid Mechanics + High Performance Computing

  8. 1 Copyright 2013 by ASME Proceedings of the ASME 2013 International Mechanical Engineering Congress and Exposition

    E-print Network

    Li, Perry Y.

    . The liquid-piston compressor is used for Compressed Air Energy Storage (CAES), and the inserted porous media-piston gas compressors with porous inserts can be used for Compressed Air Energy Storage (CAES). In power to compress air and the compressed air is stored in a vessel. During high power demand periods, the compressed

  9. 1 Copyright 2011 by ASME Proceedings of the ASME 2011 International Design Engineering Technical Conferences &

    E-print Network

    Awtar, Shorya

    relations in the transverse bending directions, the constraint relations in the axial and torsional and Z directions, the stiffness values associated with bending in the XY and XZ planes and the torsion TY X Z Y L XY Bending XZ Bending Twisting Stretching Ground Fig.1 Spatial Beam Flexure: Undeformed

  10. 1 Copyright 2009 by ASME Proceedings of the ASME 2009 International Design Engineering Technical Conferences &

    E-print Network

    Williams II, Robert L.

    and conclusions about the controller performances. 1. INTRODUCTION Modeling of human body walking has been evolved. Detailed human body models can include calculations of the most important muscle forces for particular type during the gait cycle. A more advanced, but still one of the simplest models for human gait analysis

  11. 1 Copyright 2012 by ASME Proceedings of the ASME 2012 International Mechanical Engineering Congress & Exposition

    E-print Network

    Ramakrishnan, Naren

    powerful "converging" technologies - nanotechnology, biotechnology, information technology, and cognitive AND BLACK SWAN TECHNOLOGIES Roop L. Mahajan ICTAS Building, Room 410H, Mail Stop: 0193, Institute for Critical Technology and Applied Science (ICTAS), Virginia Tech, Blacksburg, VA 24061 USA, Tel: 540

  12. 1 Copyright 2013 by ASME Proceedings of the ASME 2013 International Manufacturing Science and Engineering Conference

    E-print Network

    Yao, Y. Lawrence

    GEOMETRY ON LASER JOINING OF DISSIMILAR NITI TO STAINLESS STEEL WIRES Grant B. Brandal, Gen Satoh, Y of the wire as well. The fracture strength for various cone apex angles and laser powers is determined of intermetallic formation have been reported. One proposed method is by using friction stir welding. This process

  13. 1 Copyright 2011 by ASME Proceedings of the 2011 ASME International Mechanical Engineering Congress & Exposition

    E-print Network

    Williams II, Robert L.

    or implied, of the Air Force Research Laboratory or the U.S. Government. ABSTRACT State of the art legged cannot effectively absorb ground impact shocks nor transfer potential energy to kinetic energy and vice contact shock, but also effectively transfer potential and kinetic energy during walking or running

  14. 1 Copyright 2015 by ASME Proceedings of the ASME 2015 International Design Engineering Technical Conferences &

    E-print Network

    Herrmann, Jeffrey W.

    , Massachusetts, USA DETC2015-47407 RISK-BASED PATH PLANNING OPTIMIZATION METHODS FOR UAVs OVER INHABITED AREAS vehicles (UAVs) over inhabited areas requires mitigating the risk to persons on the ground. Because for assessing the risks associated with UAV operations, existing risk-based path planning approaches have

  15. 1 Copyright 2009 by ASME Proceedings of the ASME 2009 International Design Engineering Technical Conferences &

    E-print Network

    Williams II, Robert L.

    . The kinematics & dynamics textbooks have overlooked this partial decoupling in their presentations of the matrix. The old-school solution technique was the method of superposition (e.g. [1]). The inverse dynamics problem for solving the inverse dynamics problem. Recently we made a discovery regarding a partial decoupling

  16. 1 Copyright 2007 by ASME Proceedings of the 2007 ASME International Mechanical Engineering Congress and Exposition

    E-print Network

    helps to foster deep learning among students. In this paper, we describe how a patent of a rotary diesel distinguish between `deep learning', `surface learning' and `strategic learning'. The intention behind activities by orchestrating two design courses around this patent. Learning outcomes, course goals, content

  17. Copyright 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences &

    E-print Network

    Krovi, Venkat

    others. There are numerous industrial, military and medical applications of exoskeletal robotic systems the design of upper-limb exoskeletons, but there still is a necessity to study the effects of exoskeletons

  18. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences &

    E-print Network

    Lewis, Kemper E.

    is often the first trait apparent to designers, there are some products that cannot be differentiated based to differentiate between diet Coke, Classic Coke, and Pepsi when each is poured into separate glasses. When differentiation is difficult to achieve from a product's physical characteristics, the product's package becomes

  19. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Mechanical Engineering Congress & Exposition

    E-print Network

    and thermo-chemical research seeks to develop efficient processes for solar power generation and fuel for high-temperature concentrated solar thermal and thermo-chemical research. The 45 kWe simulator consists production [e.g., 1­4]. These systems use various optical configurations to concentrate solar radiation

  20. 1 Copyright 2011 by ASME Proceedings of the ASME 2011 International Manufacturing Science and Engineering Conference

    E-print Network

    Yao, Y. Lawrence

    drug delivery system, drugs are encapsulated in polymer. As the polymer degrades, the drugs) (PLLA) has been shown to have potential medical usage such as in drug delivery because it can degrade for its drug delivery application. INTRODUCTION There is a significant interest in use of biodegradable

  1. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Mechanical Engineering Congress & Exposition

    E-print Network

    Bahrami, Majid

    Congress & Exposition November 12-18, 2010, Vancouver, Canada DRAFT-IMECE2010-30412 Optothermal Analyte focused bands due to the "thermal run away" effect which is common in the systems using the joule heating effect [19]. 2. EXPERIMENTAL RESULTS In our experiments, an inverted epi-fluorescent microscope (Jenco

  2. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Mechanical Engineering Congress & Exposition

    E-print Network

    purposes, examples of such mechanisms used in open-source software development are discussed. Finally], and Apache [3], open-source car [4], open prosthetics [5], and socially relevant design projects [6) the participation of a large number of autonomous individuals across organizational boundaries, b) absence

  3. 1 Copyright 2009 by ASME Proceedings of the ASME 2009 International Mechanical Engineering Congress and Exposition

    E-print Network

    Guo, Zhixiong "James"

    considered in clinical therapies and applications including laser-induced hyperthermia as well as optical as compared with the high laser intensity. Thus, the medium is cold in the modeling of radiative heat transfer-10405 MODELING OF ULTRASHORT PULSE LASER ABLATION IN WATER Jian Jiao Department of Mechanical and Aerospace

  4. 1 Copyright 2011 by ASME Proceedings of the ASME 2011 International Mechanical Engineering Congress & Exposition

    E-print Network

    Guo, Zhixiong "James"

    on renewable and sustainable energy sources, such as solar energy. In solar reactors and solar power plants efficiency and operating temperature of the system [2]. Particular applications involving solar energy heat transfer processes, including absorption of renewable and sustainable solar energy in a solar

  5. 1 Copyright 2009 by ASME Proceedings of the ASME 2009 International Design Engineering Technical Conferences &

    E-print Network

    Herrmann, Jeffrey W.

    optimization problem in which the objective function is to minimize the aircraft's gross takeoff weight, then one can assess the quality of that method by comparing the gross takeoff weight of the method's solution to the optimal gross takeoff weight (found by solving the original design optimization problem

  6. 1 Copyright 2013 by ASME Proceedings of the ASME 2013 International Design Engineering Technical Conferences and

    E-print Network

    Yang, Maria

    technology or materials involved in creating the prototype, such as 3D printing or aluminum stock. This paper been a significant amount of research on effective ways to conduct different design activities #12

  7. 1 Copyright 2012 by ASME Proceedings of the ASME 2012 International Design Engineering Technical Conferences &

    E-print Network

    Williams II, Robert L.

    drives mimics the human body architecture, where the hip joint is a 3-dof spherical joint, 1-dof knee-dof. Conventional walking robots consist of joint-attached drives at revolute joints. This yields relatively heavy-ground collision and reduction of the number of motors to actuate each joint. Non-elastic cable-based drives

  8. 1 Copyright 2012 by ASME Proceedings of the ASME 2012 International Design Engineering Technical Conferences &

    E-print Network

    Williams II, Robert L.

    , for a total of 3-dof per arm. Each leg has a 3-dof (S-joint with 3 intersecting R joints) hip joint, a 1-dof knee joint, and a 2-dof (U-joint) ankle joint for a total of 6-dof per leg. The last hip joint, and 6-dof legs), specific length parameters, joint angle limits, plus forward pose kinematics equations

  9. Comparison of Hydrodynamic Load Predictions Between Engineering Models and Computational Fluid Dynamics for the OC4-DeepCwind Semi-Submersible: Preprint

    SciTech Connect

    Benitz, M. A.; Schmidt, D. P.; Lackner, M. A.; Stewart, G. M.; Jonkman, J.; Robertson, A.

    2014-09-01

    Hydrodynamic loads on the platforms of floating offshore wind turbines are often predicted with computer-aided engineering tools that employ Morison's equation and/or potential-flow theory. This work compares results from one such tool, FAST, NREL's wind turbine computer-aided engineering tool, and the computational fluid dynamics package, OpenFOAM, for the OC4-DeepCwind semi-submersible analyzed in the International Energy Agency Wind Task 30 project. Load predictions from HydroDyn, the offshore hydrodynamics module of FAST, are compared with high-fidelity results from OpenFOAM. HydroDyn uses a combination of Morison's equations and potential flow to predict the hydrodynamic forces on the structure. The implications of the assumptions in HydroDyn are evaluated based on this code-to-code comparison.

  10. A study on vortex flow control on inlet distortion in the re-engined 727-100 center inlet duct using computational fluid dynamics

    NASA Technical Reports Server (NTRS)

    Anderson, Bernhard H.; Huang, Pao S.; Paschal, William A.; Cavatorta, Enrico

    1992-01-01

    Computational fluid dynamics was used to investigate the management of inlet distortion by the introduction of discrete vorticity sources at selected locations in the inlet for the purpose of controlling secondary flow. These sources of vorticity were introduced by means of vortex generators. A series of design observations were made concerning the importance of various vortex generator design parameters in minimizing engine face circumferential distortion. The study showed that vortex strength, generator scale, and secondary flow field structure have a complicated and interrelated influence on the engine face distortion, over and above the initial geometry and arrangement of the generators. The installed vortex generator performance was found to be a function of three categories of variables: the inflow conditions, the aerodynamic characteristics associated with the inlet duct, and the design parameters related to the geometry, arrangement, and placement of the vortex generators within the outlet duct itself.

  11. Fundamentals of fluid lubrication

    NASA Technical Reports Server (NTRS)

    Hamrock, Bernard J.

    1991-01-01

    The aim is to coordinate the topics of design, engineering dynamics, and fluid dynamics in order to aid researchers in the area of fluid film lubrication. The lubrication principles that are covered can serve as a basis for the engineering design of machine elements. The fundamentals of fluid film lubrication are presented clearly so that students that use the book will have confidence in their ability to apply these principles to a wide range of lubrication situations. Some guidance on applying these fundamentals to the solution of engineering problems is also provided.

  12. ASME code considerations for the compact heat exchanger

    SciTech Connect

    Nestell, James; Sham, Sam

    2015-08-31

    The mission of the U.S. Department of Energy (DOE), Office of Nuclear Energy is to advance nuclear power in order to meet the nation's energy, environmental, and energy security needs. Advanced high temperature reactor systems such as sodium fast reactors and high and very high temperature gas-cooled reactors are being considered for the next generation of nuclear reactor plant designs. The coolants for these high temperature reactor systems include liquid sodium and helium gas. Supercritical carbon dioxide (sCO?), a fluid at a temperature and pressure above the supercritical point of CO?, is currently being investigated by DOE as a working fluid for a nuclear or fossil-heated recompression closed Brayton cycle energy conversion system that operates at 550°C (1022°F) at 200 bar (2900 psi). Higher operating temperatures are envisioned in future developments. All of these design concepts require a highly effective heat exchanger that transfers heat from the nuclear or chemical reactor to the chemical process fluid or the to the power cycle. In the nuclear designs described above, heat is transferred from the primary to the secondary loop via an intermediate heat exchanger (IHX) and then from the intermediate loop to either a working process or a power cycle via a secondary heat exchanger (SHX). The IHX is a component in the primary coolant loop which will be classified as "safety related." The intermediate loop will likely be classified as "not safety related but important to safety." These safety classifications have a direct bearing on heat exchanger design approaches for the IHX and SHX. The very high temperatures being considered for the VHTR will require the use of very high temperature alloys for the IHX and SHX. Material cost considerations alone will dictate that the IHX and SHX be highly effective; that is, provide high heat transfer area in a small volume. This feature must be accompanied by low pressure drop and mechanical reliability and robustness. Classic shell and tube designs will be large and costly, and may only be appropriate in steam generator service in the SHX where boiling inside the tubes occurs. For other energy conversion systems, all of these features can be met in a compact heat exchanger design. This report will examine some of the ASME Code issues that will need to be addressed to allow use of a Code-qualified compact heat exchanger in IHX or SHX nuclear service. Most effort will focus on the IHX, since the safety-related (Class A) design rules are more extensive than those for important-to-safety (Class B) or commercial rules that are relevant to the SHX.

  13. Formulation and evaluation of C-Ether fluids as lubricants useful to 260 C. [air breathing engines

    NASA Technical Reports Server (NTRS)

    Clark, F. S.; Miller, D. R.

    1980-01-01

    Three base stocks were evaluated in bench and bearing tests to determine their suitability for use at bulk oil temperatures (BOT) from -40 C to +260 C. A polyol ester gave good bearing tests at a bulk temperature of 218 C, but only a partially successful run at 274 C. These results bracket the fluid's maximum operating temperature between these values. An extensive screening program selected lubrication additives for a C-ether (modified polyphenyl ether) base stock. One formulation lubricated a bearing for 111 hours at 274 C (BOT), but this fluid gave many deposit related problems. Other C-ether blends produced cage wear or fatigue failures. Studies of a third fluid, a C-ether/disiloxane blend, consisted of bench oxidation and lubrication tests. These showed that some additives react differently in the blend than in pure C-ethers.

  14. Kelley/Sutherland, Wind Energy 1997, ASME/AIAA American Institute of Aeronautics and Astronautics

    E-print Network

    Kelley/Sutherland, Wind Energy 1997, ASME/AIAA 1 American Institute of Aeronautics and Astronautics 1997, ASME/AIAA 2 American Institute of Aeronautics and Astronautics diurnal inflow at this location

  15. Adoption of ASME Code Section XI for ISI to Research Reactors

    SciTech Connect

    Tawfik, Y.E.; El-sesy, I.A.; Shaban, H.I.; Ibrahim, M.M

    2002-07-01

    ETRR-2 (Second Egyptian thermal research reactor) is a multi-purpose, pool- type reactor with an open water surface and variable core arrangement. The core power is 22 MWth, cooled and moderated by light water and with beryllium reflectors. It contains plate- type fuel elements (MTR type, 19.7% enriched uranium) with aluminum clad. The ETRR-2 reactor consist of 57 systems and around 200 subsystems. These systems contain many mechanical components such as tanks, pipes, valves, pumps, heat exchangers, cooling tower, air compressors, and supports. In this present work, a trial was made to adopt the general requirements of ASME code, section XI to ETRR-2 research reactor. ASME (American Society of Mechanical Engineers) boiler and pressure vessel Code, section XI, provides requirements for in-service inspection (ISI) and in-service testing (IST) of components and systems, and repair/replacement activities in a nuclear power plant. Also, IAEA (International Atomic Energy Authority) has published some recommendations for ISI for research reactors similar to that rules and requirements specified in ASME. The complete ISI program requires several steps that have to be performed in sequence. These steps are described in many logic flow charts (LFC's). These logic flow charts include; the general LFC's for all steps required to complete ISI program, the LFC's for examination requirements, the LFC's for flaw evaluation modules, and the LFC's for acceptability of welds for class 1 components. This program includes, also, the inspection program for welded parts of the reactor components during its lifetime. This inspection program is applied for each system and subsystem of ETRR-2 reactor. It includes the examination area type, the component type, the part to be examined, the weld type, the examination method, the inspection program schedule, and the detailed figures of the welded components. (authors)

  16. FLUID TRANSPORT THROUGH POROUS MEDIA

    EPA Science Inventory

    Fluid transport through porous media is a relevant topic to many scientific and engineering fields. Soil scientists, civil engineers, hydrologists and hydrogeologists are concerned with the transport of water, gases and nonaqueous phase liquid contaminants through porous earth m...

  17. A design strategy for the use of vortex generators to manage inlet-engine distortion using computational fluid dynamics

    NASA Technical Reports Server (NTRS)

    Anderson, Bernhard H.; Levy, Ralph

    1991-01-01

    A reduced Navier-Stokes solution technique was successfully used to design vortex generator installations for the purpose of minimizing engine face distortion by restructuring the development of secondary flow that is induced in typical 3-D curved inlet ducts. The results indicate that there exists an optimum axial location for this installation of corotating vortex generators, and within this configuration, there exists a maximum spacing between generator blades above which the engine face distortion increases rapidly. Installed vortex generator performance, as measured by engine face circumferential distortion descriptors, is sensitive to Reynolds number and thereby the generator scale, i.e., the ratio of generator blade height to local boundary layer thickness. Installations of corotating vortex generators work well in terms of minimizing engine face distortion within a limited range of generator scales. Hence, the design of vortex generator installations is a point design, and all other conditions are off design. In general, the loss levels associated with a properly designed vortex generator installation are very small; thus, they represent a very good method to manage engine face distortion. This study also showed that the vortex strength, generator scale, and secondary flow field structure have a complicated and interrelated influence over engine face distortion, over and above the influence of the initial arrangement of generators.

  18. Activated sludge model (ASM) based modelling of membrane bioreactor (MBR) processes: a critical review with special regard to MBR specificities.

    PubMed

    Fenu, A; Guglielmi, G; Jimenez, J; Spèrandio, M; Saroj, D; Lesjean, B; Brepols, C; Thoeye, C; Nopens, I

    2010-08-01

    Membrane bioreactors (MBRs) have been increasingly employed for municipal and industrial wastewater treatment in the last decade. The efforts for modelling of such wastewater treatment systems have always targeted either the biological processes (treatment quality target) as well as the various aspects of engineering (cost effective design and operation). The development of Activated Sludge Models (ASM) was an important evolution in the modelling of Conventional Activated Sludge (CAS) processes and their use is now very well established. However, although they were initially developed to describe CAS processes, they have simply been transferred and applied to MBR processes. Recent studies on MBR biological processes have reported several crucial specificities: medium to very high sludge retention times, high mixed liquor concentration, accumulation of soluble microbial products (SMP) rejected by the membrane filtration step, and high aeration rates for scouring purposes. These aspects raise the question as to what extent the ASM framework is applicable to MBR processes. Several studies highlighting some of the aforementioned issues are scattered through the literature. Hence, through a concise and structured overview of the past developments and current state-of-the-art in biological modelling of MBR, this review explores ASM-based modelling applied to MBR processes. The work aims to synthesize previous studies and differentiates between unmodified and modified applications of ASM to MBR. Particular emphasis is placed on influent fractionation, biokinetics, and soluble microbial products (SMPs)/exo-polymeric substances (EPS) modelling, and suggestions are put forward as to good modelling practice with regard to MBR modelling both for end-users and academia. A last section highlights shortcomings and future needs for improved biological modelling of MBR processes. PMID:20619870

  19. Proceedings of DETC 2003 2003 ASME Design Engineering Technical Conferences

    E-print Network

    Rand, Richard H.

    motions (nonlinear normal modes - NNMs), as well as, asynchronous periodic motions (el- liptic orbits with normalized natural frequency equal to unity, and a nonlinear oscillator possessing a nonlinearizable cu- bic normal modes - NNMs) or asynchronous periodic motions are de- tected, along with homoclinic loops

  20. Proceedings of the ASME/JSME Joint Thermal Engineering Conference

    E-print Network

    Wirtz, Richard A.

    dh Fan hub diameter f Heat sink friction factor k Coolant thermal conductivity L Heat sink footprint Reynolds number U Fin heat transfer coefficient P Pressure change µ Coolant viscosity Coolant density Fan operating at its nominal speed, the heat sink fin geometry determines the overall thermal conductance

  1. Proceedings of IMECE 2004 2004 ASME International Mechanical Engineering Congress

    E-print Network

    Bahrami, Majid

    resistance (TCR) at the interface be- tween the package and its heat sink or heat pipe. TCR may be reduced-dimensional pressure, P/Hmic Q = heat flow rate, W R = thermal resistance, K/W T = temperature, K t = thickness and avionic systems has resulted in a significant increase in heat dissipation rates and presents a great

  2. Proceedings of DETC'99 1999 ASME Design Engineering Technical Conferences

    E-print Network

    Rand, Richard H.

    deg C benzoquinone spray discharged by the beetle is formed at the moment of ejection, as follows, an exothermic reaction pro- duces benzoquinones, oxygen, and water. When this reac- tion occurs, the vaporized

  3. Proceedings of the 2003 ASME Mechanical Engineering Congress and Exposition

    E-print Network

    Papalambros, Panos

    weight in LQ objective. , , , Sprung mass acceleration, wheel hop, rattle space, and passenger acceleration objective weights. Control effort weight in LQ objective. Initial time Time of mean square matrix. Plant optimization weight. Observer/controller optimization weight. Disturbance signal

  4. Proceedings of The 1996 ASME Design Engineering Technical Conferences and

    E-print Network

    Williams II, Robert L.

    TBM whose modules can be modeled as a virtual serial chain. It also handles TBMs constructed designed, all TBM members are loaded axially, thus increasing stiffness and load bearing capability can be used to optimize performance, including snake-like motion to avoid obstacles. A TBM has an open

  5. Proceedings of DETC'03 2003 ASME Design Engineering Technical Conferences

    E-print Network

    de Weck, Olivier L.

    of a tanker, commercial aircraft and bomber. Hewlett-Packard imple- mented platform strategies on its printer platforms [1]. Boeing is developing the platform based Blended Wing Body (BWB) aircraft family consists

  6. Proceedings of DETC00 2000 ASME Design Engineering Technical Conferences

    E-print Network

    McMains, Sara

    (FDM), selective laser sintering (SLS), and laminated object manufacturing (LOM)(4). In all a fast buildoption. The soft- ware identifies slices that are "hidden" by slices above and below OF THE INTE- RIOR SLICES ARE "HIDDEN" AND THUS CAN BE BUILT USING THE FAST BUILD STYLE PICTURED ON THE LEFT

  7. Proceedings of DETC'05 2005 ASME Design Engineering Technical Conferences

    E-print Network

    Yu, Pei

    character (benign/catastrophic) was discussed. Bifurcations into limit cycles (Hopf bifurcation [7]) were, Long Beach, California USA DETC2005-85312 STABILITY, BIFURCATION AND JUMPING PHENOMENON IN A 2-D MODEL Hopf bifurcations. In particular, the jumping phenomenon found in our previous work will be further

  8. Proceedings of DETC'99 1999 ASME Design Engineering Technical Conferences

    E-print Network

    Rand, Richard H.

    , Las Vegas, Nevada, USA D E T C 9 9 / V I B - 8 3 1 8 BIFURCATIONS IN THE DYNAMICS OF TWO COUPLED VAN University Ithaca, NY 14853 Email: saw8@cornell.edu Richard Rand Department of Theoretical and Applied + ): (9) Eqs. (8)-(9), show that _Ri, _i are O(). We now Taylor expand ~Ri and ~i: ~Ri = Ri(t 0 ) = Ri

  9. Proceedings of DETC 2000 2000 ASME Design Engineering Technical Conference

    E-print Network

    Herrmann, Jeffrey W.

    system. Estimating the manufacturing cycle time early helps reduce the total product development time - Baltimore, Maryland DETC2000/DFM-14002 DESIGN FOR PRODUCTION: A TOOL FOR REDUCING MANUFACTURING CYCLE TIME design. This design for production (DFP) tool determines how manufacturing a new product design affects

  10. Proceedings of DETC 2001 2001 ASME Design Engineering Technical Conference

    E-print Network

    Herrmann, Jeffrey W.

    that will be made in a manufacturing system that makes other products as well. It identifies the benefits - Pittsburgh, Pennsylvania DETC2001/DFM-21169 INCORPORATING MANUFACTURING CYCLE TIME COST IN NEW PRODUCT and queue times, which form most of the manufacturing cycle time. This paper discusses the economic impact

  11. Proceedings of DETC 2005 2005 ASME Design Engineering Technical Conferences

    E-print Network

    Rand, Richard H.

    WITH APPLICATION TO CIRCADIAN RHYTHMS Kevin Rompala1 , Richard Rand1 and Howard Howland2 1: Dept. Theoretical of circadian rhythms in the chemistry of the eyes. We model the circadian oscillator in each eye as a van der this system comes from the presence of circadian rhythms in the chemistry of the eyes. We model the circadian

  12. Proceedings of ASME IMECE: International Mechanical Engineering Conference & Exposition

    E-print Network

    Panchagnula, Mahesh

    The ability to predict the properties of swirling flows is of great industrial and academic importance features that is usually observed in swirling flows is the formation of centretoroidal recirculation zone

  13. Proceedings of DETC02 2002 ASME Design Engineering Technical Conferences

    E-print Network

    McMains, Sara

    manufacturing (LM) or rapid prototyping. These tech- nologies include stereolithography (SLA), 3-D printing can easily interpret a shaded 3D surface model or a display of a wire-frame model with dashed hidden, fused deposition modeling (FDM), selective laser sintering (SLS), and laminated object manufacturing

  14. Applied Fluid Mechanics. Lecture Notes.

    ERIC Educational Resources Information Center

    Gregg, Newton D.

    This set of lecture notes is used as a supplemental text for the teaching of fluid dynamics, as one component of a thermodynamics course for engineering technologists. The major text for the course covered basic fluids concepts such as pressure, mass flow, and specific weight. The objective of this document was to present additional fluids…

  15. Physics of Mechanical, Gaseous, and Fluid Systems. A Study Guide of the Science and Engineering Technician Curriculum.

    ERIC Educational Resources Information Center

    Dixon, Peggy; And Others

    This study guide is part of a program of studies entitled Science and Engineering Technician (SET) Curriculum. The SET Curriculum integrates elements from the disciplines of chemistry, physics, mathematics, mechanical technology, and electronic technology. The objective of this curriculum development project is to train technicians in the use of…

  16. Three-dimensional lithostratigraphic model at Yucca Mountain, Nevada: A framework for fluid transport modeling and engineering design

    SciTech Connect

    Buesch, D.C.; Spengler, R.W.; Nelson, J.E.; Dickerson, R.P.

    1993-12-31

    A three-dimensional lithostratigraphic model of the central block of Yucca MounEain. Nevada, illustrates how some activities can serve both site characterization and dcsign and construction of the Exploratory Studies Facility (ESF). Site-characterization activities supported bv this model include characterizing the three-dimensional geometry of lithologic units and faults, and providing boundary conditions for geostatistical models and site-scale fluid flow modeling. The model supports the conceptual design as construction efforts for the proposed ramps of the ESF and potential high-level nuclear waste repository.

  17. Electrorheological fluids and methods

    DOEpatents

    Green, Peter F.; McIntyre, Ernest C.

    2015-06-02

    Electrorheological fluids and methods include changes in liquid-like materials that can flow like milk and subsequently form solid-like structures under applied electric fields; e.g., about 1 kV/mm. Such fluids can be used in various ways as smart suspensions, including uses in automotive, defense, and civil engineering applications. Electrorheological fluids and methods include one or more polar molecule substituted polyhedral silsesquioxanes (e.g., sulfonated polyhedral silsesquioxanes) and one or more oils (e.g., silicone oil), where the fluid can be subjected to an electric field.

  18. Fluid imbalance

    MedlinePLUS

    ... disease , the body cannot get rid of unneeded fluids. The body may lose too much fluid due to diarrhea , ... hypokalemia , hyperkalemia ), and other chemicals that help regulate body fluids. Medicines can also affect fluid balance. The most ...

  19. Numerical Study of Granular Scaffold Efficiency to Convert Fluid Flow into Mechanical Stimulation in Bone Tissue Engineering.

    PubMed

    Cruel, Magali; Bensidhoum, Morad; Nouguier-Lehon, Cécile; Dessombz, Olivier; Becquart, Pierre; Petite, Hervé; Hoc, Thierry

    2015-09-01

    Controlling the mechanical environment in bioreactors represents a key element in the reactors' optimization. Positive effects of fluid flow in three-dimensional bioreactors have been observed, but local stresses at cell scale remain unknown. These effects led to the development of numerical tools to assess the micromechanical environment of cells in bioreactors. Recently, new possible scaffold geometry has emerged: granular packings. In the present study, the primary goal was to compare the efficiency of such a scaffold to the other ones from literature in terms of wall shear stress levels and distributions. To that aim, three different types of granular packings were generated through discrete element method, and computational fluid dynamics was used to simulate the flow within these packings. Shear stress levels and distributions were determined. A linear relationship between shear stress and inlet velocity was observed, and its slope was similar to published data. The distributions of normalized stress were independent of the inlet velocity and were highly comparable to those of widely used porous scaffolds. Granular packings present similar features to more classical porous scaffolds and have the advantage of being easy to manipulate and seed. The methods of this work are generalizable to the study of other granular packing configurations. PMID:25634115

  20. 46 CFR 56.60-1 - Acceptable materials and specifications (replaces 123 and Table 126.1 in ASME B31.1).

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...the ASME Boiler and Pressure Vessel Code (14 ). A 126 Gray iron ......do (14 ). A 197 Malleable iron ...Threaded Fittings, Classes 150 and 300. ASME B16.4 1998 Gray Iron Threaded Fittings, Classes 125 and 250. ASME...

  1. 46 CFR 56.60-1 - Acceptable materials and specifications (replaces 123 and Table 126.1 in ASME B31.1).

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...the ASME Boiler and Pressure Vessel Code (14 ). A 126 Gray iron ......do (14 ). A 197 Malleable iron ...Threaded Fittings, Classes 150 and 300. ASME B16.4 1998 Gray Iron Threaded Fittings, Classes 125 and 250. ASME...

  2. 46 CFR 56.60-1 - Acceptable materials and specifications (replaces 123 and Table 126.1 in ASME B31.1).

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...the ASME Boiler and Pressure Vessel Code (14 ). A 126 Gray iron ......do (14 ). A 197 Malleable iron ...Threaded Fittings, Classes 150 and 300. ASME B16.4 1998 Gray Iron Threaded Fittings, Classes 125 and 250. ASME...

  3. 46 CFR 56.60-1 - Acceptable materials and specifications (replaces 123 and Table 126.1 in ASME B31.1).

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...the ASME Boiler and Pressure Vessel Code (14 ). A 126 Gray iron ......do (14 ). A 197 Malleable iron ...Threaded Fittings, Classes 150 and 300. ASME B16.4 1998 Gray Iron Threaded Fittings, Classes 125 and 250. ASME...

  4. 46 CFR 56.60-1 - Acceptable materials and specifications (replaces 123 and Table 126.1 in ASME B31.1).

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...the ASME Boiler and Pressure Vessel Code (14 ). A 126 Gray iron ......do (14 ). A 197 Malleable iron ...Threaded Fittings, Classes 150 and 300. ASME B16.4 1998 Gray Iron Threaded Fittings, Classes 125 and 250. ASME...

  5. Engine having multiple pumps driven by a single shaft

    DOEpatents

    Blass, James R. (Bloomington, IL)

    2001-01-01

    An engine comprises an engine housing. A first engine fluid sub-system that includes a first pump and the engine housing defining a first fluid passage is also included in the engine. The engine also includes at least one additional engine fluid sub-system that includes a second pump and the engine housing defining a second fluid passage. A rotating shaft is at least partially positioned in the engine housing, the first pump and the second pump.

  6. 1 Copyright 2013 by ASME Proceedings of the ASME/BATH 2013 Symposium on Fluid Power & Motion Control

    E-print Network

    Van de Ven, James D.

    /motor is directly related to the wheel torque and system pressure resulting in a wide range of operating conditions and motors including gear, screw, lobe, and piston machines. Of these machines, there are 3 main

  7. Proceedings of HT2009 2009 ASME Summer Heat Transfer Conference

    E-print Network

    Guo, Zhixiong "James"

    Proceedings of HT2009 2009 ASME Summer Heat Transfer Conference July 19-23, 2009, San Francisco, CA, USA HT2009-88261 SIMULATION OF FOCUSED RADIATION PROPAGATION AND TRANSIENT HEAT TRANSFER IN TURBID-dependent radiation and conduction bio-heat transfer model. Ultrashort pulsed radiation transport in the cylindrical

  8. 1 Copyright 2007 by ASME Proceedings of OMAE07

    E-print Network

    Manuel, Lance

    for wind regimes associated with onshore winds (winds from sea to land) and offshore winds (those from land1 Copyright © 2007 by ASME Proceedings of OMAE07 26th International Conference on Offshore In the design of land-based or offshore wind turbines for ultimate limit states, long-term loads associated

  9. COPYRIGHT 2003 by ASME AERODYNAMICS OF TIP LEAKAGE FLOWS

    E-print Network

    Camci, Cengiz

    COPYRIGHT 2003 by ASME 1 AERODYNAMICS OF TIP LEAKAGE FLOWS NEAR PARTIAL SQUEALER RIMS IN AN AXIAL of aerodynamic characteristics of full and partial-length squealer rims in a turbine stage. Full and partial of these "partial squealer tips" and their chordwise position are varied to find an optimal aerodynamic tip

  10. 1 Copyright 2006 by ASME Proceedings of IMECE2006

    E-print Network

    Aguilar, Guillermo

    replaced by solid CO2, liquid oxygen and #12;2 Copyright © 2006 by ASME liquid nitrogen (LN2). LN2 is cryosurgery of a nodular BCC using liquid nitrogen (LN2) spray. The model uses Pennes equation to describe in dermatological practice since the late 19th century [5]. Liquid air was used as the first cryogen but was later

  11. ASME B31.3: Recent changes and future developments

    SciTech Connect

    Koves, W.J.; Frikken, D.

    1996-12-01

    ASME B31.3 has undergone significant changes in recent years to better serve the industries that it supports. The Code has changed in response to changing technology, inquiries to the committee, technical needs, clarification of requirements and editorial considerations. This paper discusses those significant changes and planned future developments.

  12. Paper Presented at 1999 ASME Wind Energy Symposium, Reno Nevada

    E-print Network

    Paper Presented at 1999 ASME Wind Energy Symposium, Reno Nevada January 11-14, 1998, AIAA-99 Mexico 87185-0708 ABSTRACT Wind energy researchers at Sandia National Laboratories have developed a small, GPS application, spread-spectrum modem INTRODUCTION Wind-energy researchers at the National Wind

  13. Gamma-ray Burst Positions from the ASM on RXTE

    E-print Network

    Hale V. Bradt; Donald A. Smith

    1999-05-20

    The RXTE/ASM has detected and positioned 14 confirmed GRB bursts (at this writing, Jan. 1999) including six whose positions were comunicated to the community 2 to 32 hours after the burst. Two of these latter bursts led to measurements of optical red shifts but one, despite an easily detected x-ray afterglow, produced no detectable optical or radio afterglow.

  14. 1 Copyright 2004 by ASME Proceedings of Solar 2004

    E-print Network

    Ribando, Robert J.

    1 Copyright © 2004 by ASME Proceedings of Solar 2004 July 11-14, 2004 Portland, Oregon ISEC2004 in a typical U.S. home, residential energy conservation techniques hold great promise for significant savings in the structure. The building shell is subjected to a daily variation in solar radiation and air temperature

  15. 1 Copyright 2012 by ASME Proceedings of the 31

    E-print Network

    McCalley, James D.

    1 Copyright © 2012 by ASME Proceedings of the 31 st International Conference on Ocean, Offshore to floating wind turbines as a means of harnessing this deepwater offshore wind resource. The preferred floating platform technology for this application, however, is currently up for debate. To begin

  16. 1 Copyright ## by ASME Proceedings of ICEM `03

    E-print Network

    Sheffield, University of

    in cement is the favoured method in the UK for disposal of intermediate and low level radioactive wastes and in particular, its associated radioactive properties. Within the UK there are three categories, Low Level Waste1 Copyright © ## by ASME Proceedings of ICEM `03: The 9th International Conference on Radioactive

  17. Risk analysis of nuclear safeguards regulations. [Aggregated Systems Model (ASM)

    SciTech Connect

    Al-Ayat, R.A.; Altman, W.D.; Judd, B.R.

    1982-06-01

    The Aggregated Systems Model (ASM), a probabilisitic risk analysis tool for nuclear safeguards, was applied to determine benefits and costs of proposed amendments to NRC regulations governing nuclear material control and accounting systems. The objective of the amendments was to improve the ability to detect insiders attempting to steal large quantities of special nuclear material (SNM). Insider threats range from likely events with minor consequences to unlikely events with catastrophic consequences. Moreover, establishing safeguards regulations is complicated by uncertainties in threats, safeguards performance, and consequences, and by the subjective judgments and difficult trade-offs between risks and safeguards costs. The ASM systematically incorporates these factors in a comprehensive, analytical framework. The ASM was used to evaluate the effectiveness of current safeguards and to quantify the risk of SNM theft. Various modifications designed to meet the objectives of the proposed amendments to reduce that risk were analyzed. Safeguards effectiveness was judged in terms of the probability of detecting and preventing theft, the expected time to detection, and the expected quantity of SNM diverted in a year. Data were gathered in tours and interviews at NRC-licensed facilities. The assessment at each facility was begun by carefully selecting scenarios representing the range of potential insider threats. A team of analysts and facility managers assigned probabilities for detection and prevention events in each scenario. Using the ASM we computed the measures of system effectiveness and identified cost-effective safeguards modifications that met the objectives of the proposed amendments.

  18. 14 CFR 27.1185 - Flammable fluids.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...airspace between each tank and each firewall or shroud isolating that tank, unless equivalent means are used to prevent heat transfer from each engine compartment to the flammable fluid. (d) Absorbent materials close to flammable fluid...

  19. Fluid infusion system

    NASA Technical Reports Server (NTRS)

    1974-01-01

    Performance testing carried out in the development of the prototype zero-g fluid infusion system is described and summarized. Engineering tests were performed in the course of development, both on the original breadboard device and on the prototype system. This testing was aimed at establishing baseline system performance parameters and facilitating improvements. Acceptance testing was then performed on the prototype system to verify functional performance. Acceptance testing included a demonstration of the fluid infusion system on a laboratory animal.

  20. ASM-024, a Piperazinium Compound, Promotes the In Vitro Relaxation of ?2-Adrenoreceptor Desensitized Tracheas

    PubMed Central

    Israël-Assayag, Evelyne; Beaulieu, Marie-Josée; Cormier, Yvon

    2015-01-01

    Inhaled ?2-adrenoreceptor agonists are widely used in asthma and chronic obstructive pulmonary disease (COPD) for bronchoconstriction relief. ?2-adrenoreceptor agonists relax airway smooth muscle cells via cyclic adenosine monophosphate (cAMP) mediated pathways. However, prolonged stimulation induces functional desensitization of the ?2-adrenoreceptors (?2-AR), potentially leading to reduced clinical efficacy with chronic or prolonged administration. ASM-024, a small synthetic molecule in clinical stage development, has shown activity at the level of nicotinic receptors and possibly at the muscarinic level and presents anti-inflammatory and bronchodilator properties. Aerosolized ASM-024 reduces airway resistance in mice and promotes in-vitro relaxation of tracheal and bronchial preparations from animal and human tissues. ASM-024 increased in vitro relaxation response to maximally effective concentration of short—acting beta-2 agonists in dog and human bronchi. Although the precise mechanisms by which ASM-024 promotes airway smooth muscle (ASM) relaxation remain unclear, we hypothesized that ASM-024 will attenuate and/or abrogate agonist-induced contraction and remain effective despite ?2-AR tachyphylaxis. ?2-AR tachyphylaxis was induced with salbutamol, salmeterol and formoterol on guinea pig tracheas. The addition of ASM-024 relaxed concentration-dependently intact or ?2-AR desensitized tracheal rings precontracted with methacholine. ASM-024 did not induce any elevation of intracellular cAMP in isolated smooth muscle cells; moreover, blockade of the cAMP pathway with an adenylate cyclase inhibitor had no significant effect on ASM-024-induced guinea pig trachea relaxation. Collectively, these findings show that ASM-024 elicits relaxation of ?2-AR desensitized tracheal preparations and suggest that ASM-024 mediates smooth muscle relaxation through a different target and signaling pathway than ?2-adrenergic receptor agonists. These findings suggest ASM-024 could potentially provide clinical benefit when used adjunctively with inhaled ?2-adrenoreceptor agonists in those patients exhibiting a reduced response to their chronic use. PMID:25799096

  1. Fluid varieties

    E-print Network

    Ewa Graczynska; Dietmar Schweigert

    2005-07-01

    We invent the notion of a derived and fluid variety. Fluid variety has no proper derived variety as its subvariety. We examine some properties of fluid and derived varieties. Examples of such varieties of bands are presented.

  2. Critical-fluid extraction of organics from water. Volume I. Engineering analysis. Final report, 1 October 1979-30 November 1983

    SciTech Connect

    Moses, J.M.; de Filippi, R.P.

    1984-06-01

    Critical-fluid extraction of several organic solutes from water was investigated analytically and experimentally to determine the energy conservation potential of the technology relative to distillation. This Volume gives the results of an engineering analysis. The process uses condensed or supercritical carbon dioxide as an extracting solvent to separate aqueous solutions of common organics such as ethanol, isopropanol and sec-butanol. Energy input to the systems is electric power to drive compressors. A detailed process analysis included evaluation and correlation of thermophysical properties and phase equilibria for the two- and three-component systems involved. The analysis showed that a plant fed with 10 weight percent ethanol feed would consume 0.65 kilowatt-hours (kwh) of power for compression energy per gallon of alcohol. This energy consumption would be 5300 Btu of steam-equivalent, or 6500 Btu of fossil-fuel-equivalent energy. The extraction product, however, would require additional energy to produce high-purity alcohol. Doubling the ethanol feed concentration to 20 weight percent would reduce the energy required to about 0.30 kwh per gallon. Halving the ethanol feed concentration to 5 weight percent would increase the energy required to about 1.35 kwh per gallon. For the same feed composition, isopropanol can be separated with 48% of the energy required for ethanol. The same separation of sec-butanol can be done with 25% of the ethanol energy requirement.

  3. Fluid Overload.

    PubMed

    O'Connor, Michael E; Prowle, John R

    2015-10-01

    Most critically ill patients experience external or internal fluid shifts and hemodynamic instability. In response to these changes, intravenous fluids are frequently administered. However, rapid losses of administered fluids from circulation and the indirect link between the short-lived plasma volume expansion and end points frequently result in transient responses to fluid therapy. Therefore, fluid overload is a common finding in intensive care units. The authors consider the evidence of harm associated with fluid overload and the physiologic processes that lead to fluid accumulation in critical illness. The authors then consider methods to prevent fluid accumulation and/or manage its resolution. PMID:26410146

  4. Fluid Mechanics The field of fluid mechanics, as it relates to preparation for the Ph.D. degree in Mechanical

    E-print Network

    Kim, John

    Fluid Mechanics The field of fluid mechanics, as it relates to preparation for the Ph.D. degree in Mechanical Engineering or Aerospace Engineering, is concerned with the study of all aspects of fluid motion Requirements: Ph.D. minor field requirements in fluid mechanics may be satisfied by completion of MAE 250A

  5. History of the internal combustion engine

    SciTech Connect

    Somerscales, E.F.C. ); Zagotta, A.A. )

    1989-01-01

    The study of engineering history by the practioners of engineering is not well-developed. This is unfortunate, because if nothing else, it is the culture of our profession, but even more importantly, it provides us with a proper understanding of current and future engineering. Without an adequate historical background the engineer could, for example, respond incorrectly to problems that might arise in some device or make inappropriate changes in the design. History can also suggest the path that might be followed by a new product, and thereby guide the development and marketing. Because of the fuller appreciation of the art and science of engineering that is provided by an awareness of engineering history, it seems appropriate for the ASME to recognize the role in our profession. The papers in this volume, which deal and various aspects of the history of the internal combustion engine, were presented in a session at the Fall Technical Conference of the ASME Internal Combustion Engine Division held in Dearborn, Michigan on October 17, 1989. The session was jointly sponsored and arranged by the Internal Combustion Engine Division and by the History and Heritage Committee of ASME. It is the first in what the latter hopes will be a regular series of sessions at various Society meetings jointly sponsored with the different divisions of the Society. It is hoped in this way to raise the consciousness of the engineering community to its history and to encourage in particular the preparation of historical papers by engineer-historians, who are involved in the practice of engineering. An approximate chronological order has been chosen for the arrangement of the papers, with the first, by H.O. Hardenberg, being on the gunpowder engines, which were experimented with from the sixteenth century to the middle of the nineteenth century.

  6. Introduction to Computational Fluid Dynamics 424512 E #1 -rz Introduction to Computational Fluid Dynamics

    E-print Network

    Zevenhoven, Ron

    Introduction to Computational Fluid Dynamics 424512 E #1 - rz Introduction to Computational Fluid Dynamics (iCFD) 424512.0 E, 5 sp 1. Introduction; Fluid dynamics (lecture 1 of 4) Ron Zevenhoven Åbo to Computational Fluid Dynamics 424512 E #1 - rz maj 2015 Åbo Akademi Univ - Thermal and Flow Engineering

  7. Segmenting the Left Ventricle in 3D Using a Coupled ASM and a Learned Non-Rigid Spatial

    E-print Network

    Whelan, Paul F.

    , modern MRI scanners produce 3D+time images of the heart for diag- nosis of CVD. Deriving quantitative dealt with the issues with direct 3D ASM implementations, especially constructing 3D ASMsSegmenting the Left Ventricle in 3D Using a Coupled ASM and a Learned Non-Rigid Spatial Model

  8. 46 CFR 56.01-5 - Adoption of ASME B31.1 for power piping, and other standards.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 2010-10-01 false Adoption of ASME B31.1 for power piping, and...APPURTENANCES General § 56.01-5 Adoption of ASME B31.1 for power piping, and...Limitations and Modifications in the Adoption of ASME B31.1 for Pressure and...

  9. 46 CFR 56.01-5 - Adoption of ASME B31.1 for power piping, and other standards.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 2011-10-01 false Adoption of ASME B31.1 for power piping, and...APPURTENANCES General § 56.01-5 Adoption of ASME B31.1 for power piping, and...Limitations and Modifications in the Adoption of ASME B31.1 for Pressure and...

  10. 46 CFR 56.01-5 - Adoption of ASME B31.1 for power piping, and other standards.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 2012-10-01 false Adoption of ASME B31.1 for power piping, and...APPURTENANCES General § 56.01-5 Adoption of ASME B31.1 for power piping, and...Limitations and Modifications in the Adoption of ASME B31.1 for Pressure and...

  11. 46 CFR 56.01-5 - Adoption of ASME B31.1 for power piping, and other standards.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 2014-10-01 false Adoption of ASME B31.1 for power piping, and...APPURTENANCES General § 56.01-5 Adoption of ASME B31.1 for power piping, and...Limitations and Modifications in the Adoption of ASME B31.1 for Pressure and...

  12. 46 CFR 56.01-5 - Adoption of ASME B31.1 for power piping, and other standards.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 2013-10-01 false Adoption of ASME B31.1 for power piping, and...APPURTENANCES General § 56.01-5 Adoption of ASME B31.1 for power piping, and...Limitations and Modifications in the Adoption of ASME B31.1 for Pressure and...

  13. The Variety of Fluid Dynamics.

    ERIC Educational Resources Information Center

    Barnes, Francis; And Others

    1980-01-01

    Discusses three research topics which are concerned with eminently practical problems and deal at the same time with fundamental fluid dynamical problems. These research topics come from the general areas of chemical and biological engineering, geophysics, and pure mathematics. (HM)

  14. Proceedings of the 1994 ASME/IEEE joint railroad conference

    SciTech Connect

    Hawthorne, K.L.; Hill, J.R.

    1994-12-31

    The proceedings contains 22 papers from the IEEE/ASME Joint Railroad Conference. Topics discussed include flange bearing crossing frogs; rapid transit; vehicle on-board computer systems; total transport system control functions; automated train dispatching system; wheel thermal damage limits; AC propulsion; AC traction drives; electric power supplies; failure detection and identification; cargo transportation; and critical speed for railroad vehicles. Papers within the scope of the data base have been processed separately.

  15. Recent changes to ASME B31.3

    SciTech Connect

    Becht, C. IV; Frikken, D.R.; Bane, E.J.

    1996-07-01

    The code for process piping, ASME B31.3 Chemical Plant and Petroleum Refinery Piping, has undergone significant changes and additions in recent years. This includes many aspects of design, materials, and fabrication. Included are substantial changes to material impact testing requirements, qualification procedures for unlisted components, coverage of bellows expansion joints, and safety relief set pressure requirements. This paper provides an update on some of these recent changes to the Code together with some background on reasons for the changes.

  16. 1 Copyright 2010 by ASME Proceedings of the 2010 ASME IDETC

    E-print Network

    Yang, Maria

    Department of Mechanical Engineering Massachusetts Institute of Technology Cambridge, MA Francesco Ciucci of Mechanical Engineering and Engineering Systems Division Massachusetts Institute of Technology Cambridge, MA of merging subsystems. Comparisons are made of convergence time and robustness in a case study of the design

  17. 1 Copyright 2012 by ASME Proceedings of the ASME 2012 Summer Heat Transfer Conference

    E-print Network

    Bahrami, Majid

    . While the advantages of the diesel engine are clear, diesel fuel is a major contributor to particulate matter (PM). The efficiency of large diesel engines in class 7 or 8 trucks in the highway driving is 40, a growing interest exists to reduce the diesel engine idling time due to cabin air conditioning (A

  18. A modified Activated Sludge Model No. 3 (ASM3) with two-step nitrificationedenitrification

    E-print Network

    A modified Activated Sludge Model No. 3 (ASM3) with two-step nitrificationedenitrification Ilenia of the Activated Sludge Models (ASM) [Henze, M., Gujer, W., Mino, T., van Loosdrecht, M.C.M., 2000. Ac- tivated. Keywords: Activated sludge modelling; Benchmark; Parameter estimation; Nitrification; Denitrification

  19. ASME Journal of Mechanical Design Exploration of the Effectiveness of Physical

    E-print Network

    Chen, Wei

    .J., "Physical Programming For Robust Design," 40 th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics have received much criticism. The advancement of robust design methods in the statistical community hasASME Journal of Mechanical Design 1 Exploration of the Effectiveness of Physical Programming

  20. 1 Copyright #### by ASME Proceedings of IMECE

    E-print Network

    MacDonald, Noel C.

    environment applications. Keywords: Bulk Titanium, BT-MEMS RF switch, high- aspect-ratio etching, multilayer and exposition November 5-11, 2005 Orlando Florida IMECE2005-79591 DEVELOPMENT OF BULK-TITANIUM-BASED MEMS RF SWITCH FOR HARSH ENVIRONMENT APPLICATIONS C. Ding / Department of Mechanical Engineering, University

  1. 1 Copyright 2004 by ASME Proceedings of

    E-print Network

    Müftü, Sinan

    called the coefficient of kinetic friction. Similarly the coefficient of static friction is the ratio. These friction laws can be summarized by defining the coefficient of friction m as F P m = (1) without OF CURVATURES IN A CONTACT AND FRICTION MODEL George G. Adams Mechanical and Industrial Engineering Department

  2. Proceedings of ASME Turbo Expo 2002

    E-print Network

    Liu, Feng

    McBean Department of Mechanical Engineering Monash University Clayton, 3800 Australia Feng Liu Australia ABSTRACT A parallel multi-block Navier-Stokes solver with the k- turbulence model is developed in turbomachinery and these have been referenced in a number of review papers (Imre- gun, 1998; Srinivasan, 1997

  3. Copyright 2008 by ASME1 INTRODUCTION

    E-print Network

    Gefen, Amit

    growth and function, and may also affect the development of diseases and chronic injuries. Accordingly skeletal muscle cells in tissue-engineered bio-artificial muscle (BAM) constructs. METHODS The method of approximately 12×4×1mm were produced from C2C12 murine skeletal muscle cells cultured in three-dimensions (3D

  4. Viscosity of diesel engine fuel oil under pressure

    NASA Technical Reports Server (NTRS)

    Hersey, Mayo D

    1929-01-01

    In the development of Diesel engine fuel injection systems it is necessary to have an approximate knowledge of the absolute viscosity of the fuel oil under high hydrostatic pressures. This report presents the results of experimental tests conducted by Mr. Jackson Newton Shore, utilizing the A.S.M.E. high pressure equipment.

  5. A Review & Assessment of Current Operating Conditions Allowable Stresses in ASME Section III Subsection NH

    SciTech Connect

    R. W. Swindeman

    2009-12-14

    The current operating condition allowable stresses provided in ASME Section III, Subsection NH were reviewed for consistency with the criteria used to establish the stress allowables and with the allowable stresses provided in ASME Section II, Part D. It was found that the S{sub o} values in ASME III-NH were consistent with the S values in ASME IID for the five materials of interest. However, it was found that 0.80 S{sub r} was less than S{sub o} for some temperatures for four of the materials. Only values for alloy 800H appeared to be consistent with the criteria on which S{sub o} values are established. With the intent of undertaking a more detailed evaluation of issues related to the allowable stresses in ASME III-NH, the availabilities of databases for the five materials were reviewed and augmented databases were assembled.

  6. Relationship between IEEE Std. 7-4.3.2-1993 and ASME NQA-1, parts I and II revisions and the impact on nuclear power generating stations

    SciTech Connect

    Blauw, R.J.

    1996-12-31

    Clear understanding of software related design control requirements is key to growth in the use of computers in nuclear power generating stations. Inconsistent terminology within the nuclear and software standards arena has impacted the ability of both nuclear station system engineers (i.e., the domain expert) to clearly communicate with the software/computer hardware experts. In order for computer development to occur both groups need to have a common terminology basis. Without this commonality, inappropriate application of requirements could result. This paper will present a overview of ongoing efforts within the Institute of Electrical and Electronics Engineers Nuclear Power Engineering Committee (IEEE NPEC) and the American Society of Mechanical Engineers Nuclear Quality Assurance (ASME NQA) Committee to develop this commonality.

  7. Petroleum Engineering 310 Reservoir Fluids

    E-print Network

    ratio. Water isothermal compressibility, viscosity. 6. Surface Separation Calculations and Equilibrium. Determination of Viscosity and Surface Tension of Oil, Gas, & Water Samples. Differential Vaporization and Separator Tests of Live Oil Sample. 8. Conditions for Hydrate Formation and Hydrate Inhibition Procedures

  8. MSc Programme Civil Engineering

    E-print Network

    Langendoen, Koen

    for workable transportation systems, or to design more efficient coastal defences for cities like New Orleans of water for the benefit of mankind. Students learn how to apply basic sciences to hydraulic engineering Engineering, Dredging Engineering, River Engineering, Ports and Waterways, Environmental Fluid Mechanics

  9. Fluid Mechanics.

    ERIC Educational Resources Information Center

    Drazin, Philip

    1987-01-01

    Outlines the contents of Volume II of "Principia" by Sir Isaac Newton. Reviews the contributions of subsequent scientists to the physics of fluid dynamics. Discusses the treatment of fluid mechanics in physics curricula. Highlights a few of the problems of modern research in fluid dynamics. Shows that problems still remain. (CW)

  10. Report on the activities of the ASME-NQA Committee Working Group on Quality Assurance Requirements for Research and Development, April 1990 to August 1991

    SciTech Connect

    Dronkers, J.J.

    1991-09-01

    This report transmits to the public eye the activities of the American Society of Mechanical Engineers-Nuclear Quality Assurance (ASME-NQA) Committee Working Group on Quality Assurance Requirements for Research and Development. The appendix lists the members of this group as of August 1991. The report covers a period of 17 months. The working group met eight times in this period, and much intellectual ground was traversed. There was seldom agreement on the nature of the task, but there was no doubt as to its urgency. The task was how to adapt the nuclear quality assurance standard, the NQA-1, to research and development work. 1 fig., 7 tabs.

  11. FLUID- THERMODYNAMIC AND TRANSPORT PROPERTIES OF FLUIDS (IBM PC VERSION)

    NASA Technical Reports Server (NTRS)

    Fessler, T. E.

    1994-01-01

    The accurate computation of the thermodynamic and transport properties of fluids is a necessity for many engineering calculations. The FLUID program was developed to calculate the thermodynamic and transport properties of pure fluids in both the liquid and gas phases. Fluid properties are calculated using a simple gas model, empirical corrections, and an efficient numerical interpolation scheme. FLUID produces results that are in very good agreement with measured values, while being much faster than older more complex programs developed for the same purpose. A Van der Waals equation of state model is used to obtain approximate state values. These values are corrected for real-gas effects by model correction factors obtained from tables based on experimental data. These tables also accurately compensate for the special circumstances which arise whenever phase conditions occur. Viscosity and thermal conductivity values are computed directly from tables. Interpolation within tables is based on Lagrange's three point formula. A set of tables must be generated for each fluid implemented. FLUID currently contains tables for nine fluids including dry air and steam. The user can add tables for any fluid for which adequate thermal property data is available. The FLUID routine is structured so that it may easily be incorporated into engineering programs. The IBM 360 version of FLUID was developed in 1977. It is written in FORTRAN IV and has been implemented on an IBM 360 with a central memory requirement of approximately 222K of 8 bit bytes. The IBM PC version of FLUID is written in Microsoft FORTRAN 77 and has been implemented on an IBM PC with a memory requirement of 128K of 8 bit bytes. The IBM PC version of FLUID was developed in 1986.

  12. PROCEEDINGS OF 47rn ASME IGTI ASME TURBO EXPO 2002: LAND, SEA, AND AIR

    E-print Network

    Pennycook, Steve

    Technologies initiated a program to develop and demonstrate a ceramic stationary gas turbine (CSGT) for power-and-steam. In Phase III of the CSGT program, engine tests were performed at two sites: Chevron (Bakersfield, CA. To date, five field-engine tests were completed at the Chevron site in Bakersfield, CA, and one at Malden

  13. Regulation of dynein-mediated autophagosomes trafficking by ASM in CASMCs

    PubMed Central

    Li, Pin-Lan; Nguyen, Thaison; Li, Xiang; Zhang, Yang

    2016-01-01

    Acid sphingomyelinase (ASM; gene symbol Smpd1) has been shown to play a crucial role in autophagy maturation by controlling lysosomal fusion with autophagosomes in coronary arterial smooth muscle cells (CASMCs). However, the underlying molecular mechanism by which ASM controls autophagolysosomal fusion remains unknown. In primary cultured CASMCs, lysosomal Ca2+ induced by 7-ketocholesterol (7-Ket, an atherogenic stimulus and autophagy inducer) was markedly attenuated by ASM deficiency or TRPML1 gene silencing suggesting that ASM signaling is required for TRPML1 channel activity and subsequent lysosomal Ca2+ release. In these CASMCs, ASM deficiency or TRPML1 gene silencing markedly inhibited 7-Ket-induced dynein activation. In addition, 7-Ket-induced autophagosome trafficking, an event associated with lysosomal Ca2+ release and dynein activity, was significantly inhibited in ASM-deficient (Smpd1?/?) CASMCs compared to that in Smpd1+/+ CASMCs. Finally, overexpression of TRPML1 proteins restored 7-Ket-induced lysosomal Ca2+ release and autophagosome trafficking in Smpd1?/? CASMCs. Collectively, these results suggest that ASM plays a critical role in regulating lysosomal TRPML1-Ca2+ signaling and subsequent dynein-mediated autophagosome trafficking, which leads its role in controlling autophagy maturation in CASMCs under atherogenic stimulation. PMID:26709800

  14. Regulation of dynein-mediated autophagosomes trafficking by ASM in CASMCs.

    PubMed

    Xu, Ming; Zhang, Qiufang; Li, Pin-Lan; Nguyen, Thaison; Li, Xiang; Zhang, Yang

    2016-01-01

    Acid sphingomyelinase (ASM; gene symbol Smpd1) has been shown to play a crucial role in autophagy maturation by controlling lysosomal fusion with autophagosomes in coronary arterial smooth muscle cells (CASMCs). However, the underlying molecular mechanism by which ASM controls autophagolysosomal fusion remains unknown. In primary cultured CASMCs, lysosomal Ca2+ induced by 7-ketocholesterol (7-Ket, an atherogenic stimulus and autophagy inducer) was markedly attenuated by ASM deficiency or TRPML1 gene silencing suggesting that ASM signaling is required for TRPML1 channel activity and subsequent lysosomal Ca(2+) release. In these CASMCs, ASM deficiency or TRPML1 gene silencing markedly inhibited 7-Ket-induced dynein activation. In addition, 7-Ket-induced autophagosome trafficking, an event associated with lysosomal Ca(2+) release and dynein activity, was significantly inhibited in ASM-deficient (Smpd1(-/-)) CASMCs compared to that in Smpd1(+/+) CASMCs. Finally, overexpression of TRPML1 proteins restored 7-Ket-induced lysosomal Ca(2+) release and autophagosome trafficking in Smpd1-/- CASMCs. Collectively, these results suggest that ASM plays a critical role in regulating lysosomal TRPML1-Ca(2+) signaling and subsequent dynein-mediated autophagosome trafficking, which leads its role in controlling autophagy maturation in CASMCs under atherogenic stimulation. PMID:26709800

  15. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 Eighth International Fuel Cell Science, Engineering and Technology Conference

    E-print Network

    Shu, Lily H.

    cell. INTRODUCTION The proton exchange membrane (PEM) fuel cell is a promising energy conversion device generate pollution free electricity. This low temperature fuel cell can be started faster than other fuel cell types that require pre-heating. Quicker start up and lower operating temperature are beneficial

  16. 76 FR 36231 - American Society of Mechanical Engineers (ASME) Codes and New and Revised ASME Code Cases

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-21

    ... last incorporated by reference into the regulations in a final rule dated September 10, 2008 (73 FR 52730), as corrected on October 2, 2008 (73 FR 57235), incorporating Section III of the 2004 Edition of... on May 4, 2010 (75 FR 24324). The public comment period for the proposed rule closed on July 19,...

  17. 75 FR 24323 - American Society of Mechanical Engineers (ASME) Codes and New and Revised ASME Code Cases

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-04

    ..., 2008 (73 FR 52730), as corrected on October 2, 2008 (73 FR 57235), incorporating Section III of the... NRC's regulations on September 10, 2008 (73 FR 52729). The NRC follows a three-step process to... requirements have been discussed in the final rule (69 FR 58804) issued on October 1, 2004, that amended 10...

  18. 1 Copyright 2012 by ASME Proceedings of the ASME 2012 International Design Engineering Technical Conferences & Computers and

    E-print Network

    Sandborn, Peter

    Obsolescence of human skills impacts the support of long field life systems. Human skills obsolescence field life systems. Human skills obsolescence is a growing problem for organizations that must support, USA DETC2012-71554 MODELING THE OBSOLESCENCE OF CRITICAL HUMAN SKILLS NECESSARY FOR SUPPORTING LEGACY

  19. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences & Computers and

    E-print Network

    in physical product development. Examples include open-source 3D printers [1], electronics prototypingD printing capabilities. Open-source processes emerged in software products earlier than in physical Open-source processes are based on the paradigm of self- organized communities as opposed

  20. 1 Copyright 2011 by ASME Proceedings of the ASME 2011 International Design Engineering Technical Conferences & Computers and

    E-print Network

    Sandborn, Peter

    in long life cycle products. This paper presents a new life cycle modeling approach to quantify risk.C., USA DETC2011- 47593 A MODEL FOR MAKING PART SOURCING DECISIONS FOR LONG LIFE CYCLE PRODUCTS Varun J. These studies are commonplace in strategic parts management for short life cycle products; however, conventional

  1. Proceedings of ASME-IMECE'07 2007 ASME International Mechanical Engineering Congress and RD&D Expo

    E-print Network

    Li, Perry Y.

    exhibit little power loss when they are fully open or fully closed, the proposed system is more efficient an effective load sensing system with the throttling valve used only to provide a small known pressure drop technique of using throttling to vary the full flow. This paper presents an averaged model of the system

  2. 1 Copyright 2011 by ASME Proceedings of the ASME International Design Engineering Technical Conferences & Computers and Information

    E-print Network

    Cagan, Jonathan

    functional magnetic resonance imaging (fMRI) to determine what parts of the brain are primarily involved in market research called conjoint analysis [2]. This work is an extension to the work done by Orsborn et al

  3. 1 Copyright 2007 by ASME Proceedings of the ASME 2007 International Design Engineering Technical Conferences & Computers and

    E-print Network

    Michalek, Jeremy J.

    ), and Chau et al. (2000) used shape grammars to understand the design space used for product development 15213 ABSTRACT The measurement and understanding of user aesthetic preference for form is a critical of different headlight forms is most effective when compared on the same platform. A 2-D Bezier curve

  4. 1 Copyright 2012 by ASME ASME 2012 International Design Engineering Technical Conferences and Computers and Information in

    E-print Network

    Williams II, Robert L.

    of the Psittacus Erithacu (African Grey Parrot) beak shape. This species is highly intelligent and uses its beak, or African Grey parrot, is considered to be one of the most intelligent species of parrots. These birds parrots engage in similar activities and their jaw anatomy does not differ, but due to the high

  5. 75 FR 24323 - American Society of Mechanical Engineers (ASME) Codes and New and Revised ASME Code Cases

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-04

    ...one diameter of each end of the bolt or stud. (M) When implementing Supplement...removed from 17-4 PH or 410 stainless steel studs or bolts aged at a temperature below 1100...above 30, and from A-286 stainless steel studs or bolts preloaded to 100,000...

  6. 76 FR 36231 - American Society of Mechanical Engineers (ASME) Codes and New and Revised ASME Code Cases

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-21

    ...one diameter of each end of the bolt or stud. (M) When implementing Supplement...removed from 17-4 PH or 410 stainless steel studs or bolts aged at a temperature below 1100...above 30, and from A-286 stainless steel studs or bolts preloaded to 100,000...

  7. 1 Copyright 2008 by ASME Proceedings of the ASME 2008 International Design Engineering Technical Conferences & Computers and

    E-print Network

    are compared to current industrial cleaning practices of aqueous spray or ultrasonic cleaning, including, New York, USA DETC2008-49848 LIFE CYCLE INVENTORY STUDY OF BIOLOGICALLY INSPIRED SELF-CLEANING, Atlanta, GA 30332-0405, USA ABSTRACT In this paper, self-cleaning surfaces are investigated

  8. Harmonic engine

    DOEpatents

    Bennett, Charles L. (Livermore, CA)

    2009-10-20

    A high efficiency harmonic engine based on a resonantly reciprocating piston expander that extracts work from heat and pressurizes working fluid in a reciprocating piston compressor. The engine preferably includes harmonic oscillator valves capable of oscillating at a resonant frequency for controlling the flow of working fluid into and out of the expander, and also preferably includes a shunt line connecting an expansion chamber of the expander to a buffer chamber of the expander for minimizing pressure variations in the fluidic circuit of the engine. The engine is especially designed to operate with very high temperature input to the expander and very low temperature input to the compressor, to produce very high thermal conversion efficiency.

  9. Compressor bleed cooling fluid feed system

    DOEpatents

    Donahoo, Eric E; Ross, Christopher W

    2014-11-25

    A compressor bleed cooling fluid feed system for a turbine engine for directing cooling fluids from a compressor to a turbine airfoil cooling system to supply cooling fluids to one or more airfoils of a rotor assembly is disclosed. The compressor bleed cooling fluid feed system may enable cooling fluids to be exhausted from a compressor exhaust plenum through a downstream compressor bleed collection chamber and into the turbine airfoil cooling system. As such, the suction created in the compressor exhaust plenum mitigates boundary layer growth along the inner surface while providing flow of cooling fluids to the turbine airfoils.

  10. ASM Based Synthesis of Handwritten Arabic Text Pages

    PubMed Central

    Dinges, Laslo; Al-Hamadi, Ayoub; Elzobi, Moftah; El-etriby, Sherif; Ghoneim, Ahmed

    2015-01-01

    Document analysis tasks, as text recognition, word spotting, or segmentation, are highly dependent on comprehensive and suitable databases for training and validation. However their generation is expensive in sense of labor and time. As a matter of fact, there is a lack of such databases, which complicates research and development. This is especially true for the case of Arabic handwriting recognition, that involves different preprocessing, segmentation, and recognition methods, which have individual demands on samples and ground truth. To bypass this problem, we present an efficient system that automatically turns Arabic Unicode text into synthetic images of handwritten documents and detailed ground truth. Active Shape Models (ASMs) based on 28046 online samples were used for character synthesis and statistical properties were extracted from the IESK-arDB database to simulate baselines and word slant or skew. In the synthesis step ASM based representations are composed to words and text pages, smoothed by B-Spline interpolation and rendered considering writing speed and pen characteristics. Finally, we use the synthetic data to validate a segmentation method. An experimental comparison with the IESK-arDB database encourages to train and test document analysis related methods on synthetic samples, whenever no sufficient natural ground truthed data is available. PMID:26295059

  11. Stochastic interpenetration of fluids

    SciTech Connect

    Steinkamp, M.J.; Clark, T.T.; Harlow, F.H.

    1995-11-01

    We describe a spectral approach to the investigation of fluid instability, generalized turbulence, and the interpenetration of fluids across an interface. The technique also applies to a single fluid with large variations in density. Departures of fluctuating velocity components from the local mean are far subsonic, but the mean Mach number can be large. Validity of the description is demonstrated by comparisons with experiments on turbulent mixing due to the late stages of Rayleigh-Taylor instability, when the dynamics become approximately self-similar in response to a constant body force. Generic forms for anisotropic spectral structure are described and used as a basis for deriving spectrally integrated moment equations that can be incorporated into computer codes for scientific and engineering analyses.

  12. 14 CFR 23.1095 - Carburetor deicing fluid flow rate.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... Induction System § 23.1095 Carburetor deicing fluid flow rate. (a) If a carburetor deicing fluid system is used, it must be able to simultaneously supply each engine with a rate of fluid flow, expressed in... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Carburetor deicing fluid flow rate....

  13. 14 CFR 23.1095 - Carburetor deicing fluid flow rate.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... Induction System § 23.1095 Carburetor deicing fluid flow rate. (a) If a carburetor deicing fluid system is used, it must be able to simultaneously supply each engine with a rate of fluid flow, expressed in... 14 Aeronautics and Space 1 2012-01-01 2012-01-01 false Carburetor deicing fluid flow rate....

  14. 14 CFR 23.1095 - Carburetor deicing fluid flow rate.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Induction System § 23.1095 Carburetor deicing fluid flow rate. (a) If a carburetor deicing fluid system is used, it must be able to simultaneously supply each engine with a rate of fluid flow, expressed in... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Carburetor deicing fluid flow rate....

  15. 14 CFR 23.1095 - Carburetor deicing fluid flow rate.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... Induction System § 23.1095 Carburetor deicing fluid flow rate. (a) If a carburetor deicing fluid system is used, it must be able to simultaneously supply each engine with a rate of fluid flow, expressed in... 14 Aeronautics and Space 1 2013-01-01 2013-01-01 false Carburetor deicing fluid flow rate....

  16. 14 CFR 23.1095 - Carburetor deicing fluid flow rate.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... Induction System § 23.1095 Carburetor deicing fluid flow rate. (a) If a carburetor deicing fluid system is used, it must be able to simultaneously supply each engine with a rate of fluid flow, expressed in... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Carburetor deicing fluid flow rate....

  17. Proceedings of the ASME 2013 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Giles, C. Lee

    , the authors demonstrate how social media can be used to predict and mine information relating to product fea such as earthquake warning detection systems [18], identifying medical and emer- gency needs during recovery from natural disasters such as the Haiti Earthquake [6], and detecting the spread of influenza- like-illness [7

  18. Proceedings of the ASME 2010 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Feeny, Brian

    a continuous spectrum of wave components, the sampling conditions limit the range of modal components (i applied a complex POD in the frequency do- main for response analysis. Direction finding algorithms MUSIC-28919 COMPLEX MODAL DECOMPOSITION FOR ESTIMATING WAVE PROPERTIES IN ONE-DIMENSIONAL MEDIA B. F. Feeny

  19. Proceedings of the ASME 2010 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Williams II, Robert L.

    -6]. These systems are typically comprised of a CVT system coupled with a planetary gear which can distribute speed, pulleys, gears or hydraulics. This new transmission is based on a deformable four-bar design incorporating

  20. Proceedings of the ASME 2015 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Papalambros, Panos

    for a particular vehicle type. Employing planetary gear systems in hybrid electric vehicle powertrain architectures in different ways using Planetary Gear (PG) systems depending on the vehicle operational requirements. Existing is the ring to sun planetary gear ratio. Cascading (ATC), to solve it. ATC is a hierarchical optimiza- tion

  1. Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Ober-Blöbaum, Sina

    multi-body systems is of great interest in many different research areas, especially the optimal control of the motion of the human body itself. For several reasons it is important to under- stand the muscle is described in terms of redundant coordi- nates subject to holonomic constraints. For multi-body systems

  2. Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Leyendecker, Sigrid

    beam can undergo net locomotion due to applied torsional loading on its centerline. 1 INTRODUCTION to bending and evidence exists that the elastic properties of the fish body are tuned to hydrodynamic forces of the internal resistance to bending using a Cosserat beam theory with uniform bending rigidity (see [8

  3. Proceedings of the ASME 2012 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Gupta, Satyandra K.

    on factory shop floors. Multimodal information-text, graphical anno- tations, and 3D animations- is used of assembly errors. An automated motion planning subsystem computes a collision-free path for each part from of an automated part identification module that enables the human to identify, and pick, the correct part from

  4. Proceedings of the ASME 2011 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Chen, YangQuan

    ¨older exponent H(t). The comparison of the analysis results for human sleep EEG signals in different stages using to as the first or earliest stage of sleep. This stage is characterized by low voltage, mixed frequency EEG exhibits slow brain waves. This stage contains waves with 2 Hz or slower and with 1 Copyright c 2011

  5. Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Suresh, Krishnan

    is on efficient microstructural topology optimization for 3d-printing. In particular, the computational bottle-specifications into optimal, but perhaps complex, topologies, and then directly fabricate these through 3d-printing (see-level geometry, and localized micro-level structure to meet a desired objective. Current 3d-printing processes

  6. Proceedings of ASME 2007 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Chen, Zhongping

    the nonlinear effects of squeeze film stiff- ening on the performance of a high resolution MEMS non- resonant sensor through the resonant characterization of a Fabry-P´erot inter- ferometric accelerometer under Microelectromechanical System (MEMS) devices, the stiffness due to a squeeze film may be a significant component

  7. Proceedings of the ASME 2013 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Demaine, Erik

    technology have produced significant speedup in manufacturing of mechanical structures, these methods are still costly and time consuming when com- pared with planar fabrication alternatives [1]. Origami process and very application-specific. We present an al- gorithm that will introduce some automation

  8. Proceedings of the ASME 2011 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Chen, YangQuan

    is on designing the integer order PID and fractional order PI and [PI] controllers for these class of systems tuning method. By comparing the results of PID con- troller, fractional order PI and [PI] controllers. Among all of these type of controllers, like the integer order case, fractional order PID and fractional

  9. Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Papalambros, Panos

    barrier in consumer adoption of electric vehicles (EVs) is `range anxiety,' the concern that the vehicle benefits can motive both government and private enterprise actions. 1. INTRODUCTION In the Electric vehicle; and governments support all related activities through a variety of policies. EVs face several consumer adoption

  10. Proceedings of the ASME 2012 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Papalambros, Panos

    that active learning outperforms D-optimal design when query size is large or noise is small. 1 Introduction of active learning and D- optimal design (a static sampling method) on a set of simulation tests. Empirical commonality between the two approaches. We compare empirically the performance of active learning and static D-optimal

  11. Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Papalambros, Panos

    -34897 OPTIMAL DUAL-MODE HYBRID ELECTRIC VEHICLE POWERTRAIN ARCHITECTURE DESIGN FOR A VARIETY OF LOADING, Michigan, 48109 Email: pyp@umich.edu ABSTRACT A hybrid-electric vehicle powertrain architecture consists primarily on passenger cars, interest has been growing in exploring architectures for special

  12. Proceedings of the ASME 2013 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Demaine, Erik

    -12710 RECONSTRUCTING DAVID HUFFMAN'S ORIGAMI TESSELLATIONS Eli Davis MIT CSAIL Cambridge, MA 02139 ebdavis@mit.edu Erik Huff- man codes, and best known in origami as a pioneer of curved- crease folding. But during his early paper folding in the 1970s, he designed and folded over a hundred different straight-crease origami

  13. Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Krovi, Venkat

    to production variability) is especially important for successful deployment of newer generations of 3D printed Input shaping control techniques have proven to be very effective in improving performance and lowering discussion of the IS technique. Despite of its effectiveness in linear time invariant (LTI) sys- tems

  14. 115-year-old society knows how to reach young scientists: ASM Young Ambassador Program.

    PubMed

    Karczewska-Golec, Joanna

    2015-12-25

    With around 40,000 members in more than 150 countries, American Society for Microbiology (ASM) faces the challenge of meeting very diverse needs of its increasingly international members base. The newly launched ASM Young Ambassador Program seeks to aid the Society in this effort. Equipped with ASM conceptual support and financing, Young Ambassadors (YAs) design and pursue country-tailored approaches to strengthen the Society's ties with local microbiological communities. In a trans-national setting, the active presence of YAs at important scientific events, such as 16th European Congress on Biotechnology, forges new interactions between ASM and sister societies. The paper presents an overview of the Young Ambassadors-driven initiatives at both global and country levels, and explores the topic of how early-career scientists can contribute to science diplomacy and international relations. PMID:25449541

  15. Under consideration for publication in Formal Aspects of Computing Continuous KAOS, ASM, and Formal

    E-print Network

    Banach, Richard

    of the KAOS and ASM formalisms, capable of dealing with quantities evolving continuously over real time, which consequence (eg. avionics systems, nuclear power control systems, weapons command and control systems

  16. Fluid management

    NASA Technical Reports Server (NTRS)

    Fester, D.

    1984-01-01

    The Fluid Management Panel's assessment of the technology is summarized. Since a baseline space station was not defined as a reference guide and the results of the eight contracted space station studies were not available as input, the assessment focused on technology and not programmatics. The ground rules that were key to the deliberations and guided the assessment are: (1) The space station will be operational in 1991, and (2) A space-based OTV will be operational in 1992. Thus, the capability to transport, transfer, and resupply all fluids, including those for the OTV, is required in the initial space station. The only evolutionary aspect is the refinement of capability. Fluid management includes fluid transport to orbit, liquid storage/supply, fluid transfer/resupply, and integral thermal control.

  17. Intrinsically irreversible heat engine

    DOEpatents

    Wheatley, John C. (Los Alamos, NM); Swift, Gregory W. (Los Alamos, NM); Migliori, Albert (Santa Fe, NM)

    1984-01-01

    A class of heat engines based on an intrinsically irreversible heat transfer process is disclosed. In a typical embodiment the engine comprises a compressible fluid that is cyclically compressed and expanded while at the same time being driven in reciprocal motion by a positive displacement drive means. A second thermodynamic medium is maintained in imperfect thermal contact with the fluid and bears a broken thermodynamic symmetry with respect to the fluid. the second thermodynamic medium is a structure adapted to have a low fluid flow impedance with respect to the compressible fluid, and which is further adapted to be in only moderate thermal contact with the fluid. In operation, thermal energy is pumped along the second medium due to a phase lag between the cyclical heating and cooling of the fluid and the resulting heat conduction between the fluid and the medium. In a preferred embodiment the engine comprises an acoustical drive and a housing containing a gas which is driven at a resonant frequency so as to be maintained in a standing wave. Operation of the engine at acoustic frequencies improves the power density and coefficient of performance. The second thermodynamic medium can be coupled to suitable heat exchangers to utilize the engine as a simple refrigeration device having no mechanical moving parts. Alternatively, the engine is reversible in function so as to be utilizable as a prime mover by coupling it to suitable sources and sinks of heat.

  18. Intrinsically irreversible heat engine

    DOEpatents

    Wheatley, J.C.; Swift, G.W.; Migliori, A.

    1984-12-25

    A class of heat engines based on an intrinsically irreversible heat transfer process is disclosed. In a typical embodiment the engine comprises a compressible fluid that is cyclically compressed and expanded while at the same time being driven in reciprocal motion by a positive displacement drive means. A second thermodynamic medium is maintained in imperfect thermal contact with the fluid and bears a broken thermodynamic symmetry with respect to the fluid. The second thermodynamic medium is a structure adapted to have a low fluid flow impedance with respect to the compressible fluid, and which is further adapted to be in only moderate thermal contact with the fluid. In operation, thermal energy is pumped along the second medium due to a phase lag between the cyclical heating and cooling of the fluid and the resulting heat conduction between the fluid and the medium. In a preferred embodiment the engine comprises an acoustical drive and a housing containing a gas which is driven at a resonant frequency so as to be maintained in a standing wave. Operation of the engine at acoustic frequencies improves the power density and coefficient of performance. The second thermodynamic medium can be coupled to suitable heat exchangers to utilize the engine as a simple refrigeration device having no mechanical moving parts. Alternatively, the engine is reversible in function so as to be utilizable as a prime mover by coupling it to suitable sources and sinks of heat. 11 figs.

  19. Intrinsically irreversible heat engine

    DOEpatents

    Wheatley, J.C.; Swift, G.W.; Migliori, A.

    1984-01-01

    A class of heat engines based on an intrinsically irreversible heat transfer process is disclosed. In a typical embodiment the engine comprises a compressible fluid that is cyclically compressed and expanded while at the same time being driven in reciprocal motion by a positive displacement drive means. A second thermodynamic medium is maintained in imperfect thermal contact with the fluid and bears a broken thermodynamic symmetry with respect to the fluid. The second thermodynamic medium is a structure adapted to have a low fluid flow impedance with respect to the compressible fluid, and which is further adapted to be in only moderate thermal contact with the fluid. In operation, thermal energy is pumped along the second medium due to a phase lag between the cyclical heating and cooling of the fluid and the resulting heat conduction between the fluid and the medium. In a preferred embodiment the engine comprises an acoustical drive and a housing containing a gas which is driven at a resonant frequency so as to be maintained in a standing wave. Operation of the engine at acoustic frequencies improves the power density and coefficient of performance. The second thermodynamic medium can be coupled to suitable heat exchangers to utilize the engine as a simple refrigeration device having no mechanical moving parts. Alternatively, the engine is reversible in function so as to be utilizable as a prime mover by coupling it to suitable sources and sinks of heat.

  20. 46 CFR 58.30-10 - Hydraulic fluid.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING MAIN AND AUXILIARY MACHINERY AND RELATED SYSTEMS Fluid...03-1), Cleveland “Open Cup” test method. (c) The chemical and physical properties of the hydraulic fluid shall be...

  1. 46 CFR 58.30-10 - Hydraulic fluid.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING MAIN AND AUXILIARY MACHINERY AND RELATED SYSTEMS Fluid...03-1), Cleveland “Open Cup” test method. (c) The chemical and physical properties of the hydraulic fluid shall be...

  2. 46 CFR 58.30-10 - Hydraulic fluid.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING MAIN AND AUXILIARY MACHINERY AND RELATED SYSTEMS Fluid...03-1), Cleveland “Open Cup” test method. (c) The chemical and physical properties of the hydraulic fluid shall be...

  3. 46 CFR 58.30-10 - Hydraulic fluid.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING MAIN AND AUXILIARY MACHINERY AND RELATED SYSTEMS Fluid...03-1), Cleveland “Open Cup” test method. (c) The chemical and physical properties of the hydraulic fluid shall be...

  4. Proceedings of ASME: ASME Turbo Expo 2004 Power for Land, Sea and Air

    E-print Network

    Zha, Gecheng

    AFRL/PRTF 1950 Fifth St. Bldg. 18D Wright-Patterson AFB, OH 45433 Nicholas J. Kuprowicz AFRL/PRTA 1950 Engineering Coral Gables, FL 33124 William Copenhaver AFRL/PRT 1950 Fifth St. Bldg. 18D Wright-Patterson AFB

  5. 1 Copyright 2011 by ASME Proceedings of ASME Turbo Expo Turbine Technical Conference

    E-print Network

    Camci, Cengiz

    TRANSFER INVESTIGATION AROUND A HIGH-PRESSURE GAS TURBINE ROTOR BLADE Ibrahim ERYILMAZ Tusas Engine coefficients on a high pressure turbine blade. The artificial neural network approach which has three hidden Temperature [K] h - Heat transfer coefficient [W/m2 K] INTRODUCTION Modern high-pressure turbines

  6. Fluid dynamics of dilatant fluids.

    PubMed

    Nakanishi, Hiizu; Nagahiro, Shin-ichiro; Mitarai, Namiko

    2012-01-01

    A dense mixture of granules and liquid often shows a severe shear thickening and is called a dilatant fluid. We construct a fluid dynamics model for the dilatant fluid by introducing a phenomenological state variable for a local state of dispersed particles. With simple assumptions for an equation of the state variable, we demonstrate that the model can describe basic features of the dilatant fluid such as the stress-shear rate curve that represents discontinuous severe shear thickening, hysteresis upon changing shear rate, and instantaneous hardening upon external impact. An analysis of the model reveals that the shear thickening fluid shows an instability in a shear flow for some regime and exhibits the shear thickening oscillation (i.e., the oscillatory shear flow alternating between the thickened and the relaxed states). The results of numerical simulations are presented for one- and two-dimensional systems. PMID:22400567

  7. Fluid dynamics of dilatant fluid

    E-print Network

    Hiizu Nakanishi; Shin-ichiro Nagahiro; Namiko Mitarai

    2011-12-20

    Dense mixture of granules and liquid often shows a sever shear thickening and is called a dilatant fluid. We construct a fluid dynamics model for the dilatant fluid by introducing a phenomenological state variable for a local state of dispersed particles. With simple assumptions for an equation of the state variable, we demonstrate that the model can describe basic features of the dilatant fluid such as the stress-shear rate curve that represents discontinuous severe shear thickening, hysteresis upon changing shear rate, instantaneous hardening upon external impact. Analysis of the model reveals that the shear thickening fluid shows an instability in a shear flow for some regime and exhibits {\\it the shear thickening oscillation}, i.e. the oscillatory shear flow alternating between the thickened and the relaxed states. Results of numerical simulations are presented for one and two-dimensional systems.

  8. Fluid inflation

    SciTech Connect

    Chen, X.; Firouzjahi, H.; Namjoo, M.H.; Sasaki, M. E-mail: firouz@ipm.ir E-mail: misao@yukawa.kyoto-u.ac.jp

    2013-09-01

    In this work we present an inflationary mechanism based on fluid dynamics. Starting with the action for a single barotropic perfect fluid, we outline the procedure to calculate the power spectrum and the bispectrum of the curvature perturbation. It is shown that a perfect barotropic fluid naturally gives rise to a non-attractor inflationary universe in which the curvature perturbation is not frozen on super-horizon scales. We show that a scale-invariant power spectrum can be obtained with the local non-Gaussianity parameter f{sub NL} = 5/2.

  9. Fluid Shifts

    NASA Technical Reports Server (NTRS)

    Stenger, M.; Hargens, A.; Dulchavsky, S.; Ebert, D.; Lee, S.; Lauriie, S.; Garcia, K.; Sargsyan, A.; Martin, D.; Ribeiro, L.; Lui, J.; Macias, B.; Arbeille, P.; Danielson, R.; Chang, D.; Johnston, S.; Ploutz-Snyder, R.; Smith, S.

    2016-01-01

    NASA is focusing on long-duration missions on the International Space Station (ISS) and future exploration-class missions beyond low-Earth orbit. Visual acuity changes observed after short-duration missions were largely transient, but more than 50% of ISS astronauts experienced more profound, chronic changes with objective structural and functional findings such as papilledema and choroidal folds. Globe flattening, optic nerve sheath dilation, and optic nerve tortuosity also are apparent. This pattern is referred to as the visual impairment and intracranial pressure (VIIP) syndrome. VIIP signs and symptoms, as well as postflight lumbar puncture data, suggest that elevated intracranial pressure (ICP) may be associated with the spaceflight-induced cephalad fluid shifts, but this hypothesis has not been tested. The purpose of this study is to characterize fluid distribution and compartmentalization associated with long-duration spaceflight, and to correlate these findings with vision changes and other elements of the VIIP syndrome. We also seek to determine whether the magnitude of fluid shifts during spaceflight, as well as the VIIP-related effects of those shifts, is predicted by the crewmember's preflight conditions and responses to acute hemodynamic manipulations (such as head-down tilt). Lastly, we will evaluate the patterns of fluid distribution in ISS astronauts during acute reversal of fluid shifts through application of lower body negative pressure (LBNP) interventions to characterize and explain general and individual responses. METHODS: We will examine a variety of physiologic variables in 10 long-duration ISS crewmembers using the test conditions and timeline presented in the Figure below. Measures include: (1) fluid compartmentalization (total body water by D2O, extracellular fluid by NaBr, intracellular fluid by calculation, plasma volume by CO rebreathe, interstitial fluid by calculation); (2) forehead/eyelids, tibia, calcaneus tissue thickness (by ultrasound); (3) vascular dimensions by ultrasound (jugular veins, cerebral and carotid arteries, vertebral arteries and veins, portal vein); (4) vascular dynamics by MRI (head/neck blood flow, cerebrospinal fluid pulsatility); (5) ocular measures (optical coherence tomography, intraocular pressure, 2-dimensional ultrasound including optic nerve sheath diameter, globe flattening, and retina-choroid thickness, Doppler ultrasound of ophthalmic and retinal arteries, and veins); (6) cardiac variables by ultrasound (inferior vena cava, tricuspid flow and tissue Doppler, pulmonic valve, stroke volume, right heart dimensions and function, four-chamber views); and (7) ICP measures (tympanic membrane displacement, distortion-product otoacoustic emissions, and ICP calculated by MRI). On the ground, acute head-down tilt will induce cephalad fluid shifts, whereas LBNP will oppose these shifts. Controlled Mueller maneuvers will manipulate cardiovascular variables. Through interventions applied before, during, and after flight, we intend to fully evaluate the relationship between fluid shifts and the VIIP syndrome.

  10. School of Mechanical and Aerospace Engineering

    E-print Network

    Paxton, Anthony T.

    and BEng): Engineering Design, Manufacturing, Electronics, Dynamics, Thermodynamics, Fluid Mechanics, Strength of Materials · Aerospace Engineering (MEng and BEng): Aircraft Design, Aerodynamics, Flight Mechanics, Structures and Manufacturing · Product Design Engineering (MEng and BEng): Materials, CAD

  11. ASME PTC 47 -- Calculation of overall IGCC plant performance

    SciTech Connect

    Xiong, T.; Horazak, D.A.

    1999-07-01

    An integrated gasification combined cycle (IGCC) plant is a combined chemical and power system that converts coal or other unrefined fuel into clean gaseous fuel, electric power, and other byproducts. The conversion process requires interactions among the gasification, gas cleaning, air or oxygen production, power and steam generation systems. Overall performance testing of IGCC plants. however, is based only on the streams that cross the overall plant boundary. This paper describes the calculation procedures required to conduct a fair and accurate performance test of an IGCC plant, as proposed for ASME Performance Test Code 47. Discussions include identification of parameters to be measured, calculations needed to evaluate performance, and corrections to performance data for test conditions that differ from reference conditions.

  12. Undergraduate Programmes in Railway Engineering

    E-print Network

    Birmingham, University of

    companies, infrastructure managers, engineering consultancies and construction companies. You will have, including international, sports and music scholarships; please see each school website for more details Engineering course topics Statics and Mechanics Fluids and Heat Materials Conceptual Design Maths a

  13. MED-VaL 10, Manufacturing Science and Engineering --1999 Modeling of Gear Bobbing

    E-print Network

    Aristomenis, Antoniadis

    MED-VaL 10, Manufacturing Science and Engineering -- 1999 ASME 1999 Modeling of Gear Bobbing Part models for gear hobbing were presented in the first pan of this paper. To determine the constants the prediction of the tool wear accomplishment in gear hobbing. On that account the wear development can

  14. CRITICALITY CURVES FOR PLUTONIUM HYDRAULIC FLUID MIXTURES

    SciTech Connect

    WITTEKIND WD

    2007-10-03

    This Calculation Note performs and documents MCNP criticality calculations for plutonium (100% {sup 239}Pu) hydraulic fluid mixtures. Spherical geometry was used for these generalized criticality safety calculations and three geometries of neutron reflection are: {sm_bullet}bare, {sm_bullet}1 inch of hydraulic fluid, or {sm_bullet}12 inches of hydraulic fluid. This document shows the critical volume and critical mass for various concentrations of plutonium in hydraulic fluid. Between 1 and 2 gallons of hydraulic fluid were discovered in the bottom of HA-23S. This HA-23S hydraulic fluid was reported by engineering to be Fyrquel 220. The hydraulic fluid in GLovebox HA-23S is Fyrquel 220 which contains phosphorus. Critical spherical geometry in air is calculated with 0 in., 1 in., or 12 inches hydraulic fluid reflection.

  15. Fluid Shifts

    NASA Technical Reports Server (NTRS)

    Stenger, M. B.; Hargens, A.; Dulchavsky, S.; Ebert, D.; Lee, S.; Laurie, S.; Garcia, K.; Sargsyan, A.; Martin, D.; Lui, J.; Macias, B.; Arbeille, P.; Danielson, R.; Chang, D.; Gunga, H.; Johnston, S.; Westby, C.; Ribeiro, L.; Ploutz-Snyder, R.; Smith, S.

    2015-01-01

    INTRODUCTION: Mechanisms responsible for the ocular structural and functional changes that characterize the visual impairment and intracranial pressure (ICP) syndrome (VIIP) are unclear, but hypothesized to be secondary to the cephalad fluid shift experienced in spaceflight. This study will relate the fluid distribution and compartmentalization associated with long-duration spaceflight with VIIP symptoms. We also seek to determine whether the magnitude of fluid shifts during spaceflight, as well as the VIIP-related effects of those shifts, can be predicted preflight with acute hemodynamic manipulations, and also if lower body negative pressure (LBNP) can reverse the VIIP effects. METHODS: Physiologic variables will be examined pre-, in- and post-flight in 10 International Space Station crewmembers including: fluid compartmentalization (D2O and NaBr dilution); interstitial tissue thickness (ultrasound); vascular dimensions and dynamics (ultrasound and MRI (including cerebrospinal fluid pulsatility)); ocular measures (optical coherence tomography, intraocular pressure, ultrasound); and ICP measures (tympanic membrane displacement, otoacoustic emissions). Pre- and post-flight measures will be assessed while upright, supine and during 15 deg head-down tilt (HDT). In-flight measures will occur early and late during 6 or 12 month missions. LBNP will be evaluated as a countermeasure during HDT and during spaceflight. RESULTS: The first two crewmembers are in the preflight testing phase. Preliminary results characterize the acute fluid shifts experienced from upright, to supine and HDT postures (increased stroke volume, jugular dimensions and measures of ICP) which are reversed with 25 millimeters Hg LBNP. DISCUSSION: Initial results indicate that acute cephalad fluid shifts may be related to VIIP symptoms, but also may be reversible by LBNP. The effect of a chronic fluid shift has yet to be evaluated. Learning Objectives: Current spaceflight VIIP research is described, including novel hardware and countermeasures.

  16. The ASM Curriculum Guidelines for Undergraduate Microbiology: A Case Study of the Advocacy Role of Societies in Reform Efforts.

    PubMed

    Horak, Rachel E A; Merkel, Susan; Chang, Amy

    2015-05-01

    A number of national reports, including Vision and Change in Undergraduate Biology Education: A Call to Action, have called for drastic changes in how undergraduate biology is taught. To that end, the American Society for Microbiology (ASM) has developed new Curriculum Guidelines for undergraduate microbiology that outline a comprehensive curriculum for any undergraduate introductory microbiology course or program of study. Designed to foster enduring understanding of core microbiology concepts, the Guidelines work synergistically with backwards course design to focus teaching on student-centered goals and priorities. In order to qualitatively assess how the ASM Curriculum Guidelines are used by educators and learn more about the needs of microbiology educators, the ASM Education Board distributed two surveys to the ASM education community. In this report, we discuss the results of these surveys (353 responses). We found that the ASM Curriculum Guidelines are being implemented in many different types of courses at all undergraduate levels. Educators indicated that the ASM Curriculum Guidelines were very helpful when planning courses and assessments. We discuss some specific ways in which the ASM Curriculum Guidelines have been used in undergraduate classrooms. The survey identified some barriers that microbiology educators faced when trying to adopt the ASM Curriculum Guidelines, including lack of time, lack of financial resources, and lack of supporting resources. Given the self-reported challenges to implementing the ASM Curriculum Guidelines in undergraduate classrooms, we identify here some activities related to the ASM Curriculum Guidelines that the ASM Education Board has initiated to assist educators in the implementation process. PMID:25949769

  17. The ASM Curriculum Guidelines for Undergraduate Microbiology: A Case Study of the Advocacy Role of Societies in Reform Efforts

    PubMed Central

    Horak, Rachel E. A.; Merkel, Susan; Chang, Amy

    2015-01-01

    A number of national reports, including Vision and Change in Undergraduate Biology Education: A Call to Action, have called for drastic changes in how undergraduate biology is taught. To that end, the American Society for Microbiology (ASM) has developed new Curriculum Guidelines for undergraduate microbiology that outline a comprehensive curriculum for any undergraduate introductory microbiology course or program of study. Designed to foster enduring understanding of core microbiology concepts, the Guidelines work synergistically with backwards course design to focus teaching on student-centered goals and priorities. In order to qualitatively assess how the ASM Curriculum Guidelines are used by educators and learn more about the needs of microbiology educators, the ASM Education Board distributed two surveys to the ASM education community. In this report, we discuss the results of these surveys (353 responses). We found that the ASM Curriculum Guidelines are being implemented in many different types of courses at all undergraduate levels. Educators indicated that the ASM Curriculum Guidelines were very helpful when planning courses and assessments. We discuss some specific ways in which the ASM Curriculum Guidelines have been used in undergraduate classrooms. The survey identified some barriers that microbiology educators faced when trying to adopt the ASM Curriculum Guidelines, including lack of time, lack of financial resources, and lack of supporting resources. Given the self-reported challenges to implementing the ASM Curriculum Guidelines in undergraduate classrooms, we identify here some activities related to the ASM Curriculum Guidelines that the ASM Education Board has initiated to assist educators in the implementation process. PMID:25949769

  18. 46 CFR 54.01-2 - Adoption of division 1 of section VIII of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...of division 1 of section VIII of the ASME Boiler and Pressure Vessel Code. 54.01-2...division 1 of section VIII of the ASME Boiler and Pressure Vessel Code. (a...accordance with section VIII of the ASME Boiler and Pressure Vessel Code...

  19. 46 CFR 54.01-2 - Adoption of division 1 of section VIII of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...of division 1 of section VIII of the ASME Boiler and Pressure Vessel Code. 54.01-2...division 1 of section VIII of the ASME Boiler and Pressure Vessel Code. (a...accordance with section VIII of the ASME Boiler and Pressure Vessel Code...

  20. 46 CFR 54.01-2 - Adoption of division 1 of section VIII of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...of division 1 of section VIII of the ASME Boiler and Pressure Vessel Code. 54.01-2...division 1 of section VIII of the ASME Boiler and Pressure Vessel Code. (a...accordance with section VIII of the ASME Boiler and Pressure Vessel Code...

  1. 46 CFR 54.01-2 - Adoption of division 1 of section VIII of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...of division 1 of section VIII of the ASME Boiler and Pressure Vessel Code. 54.01-2...division 1 of section VIII of the ASME Boiler and Pressure Vessel Code. (a...accordance with section VIII of the ASME Boiler and Pressure Vessel Code...

  2. 46 CFR 54.01-2 - Adoption of division 1 of section VIII of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...of division 1 of section VIII of the ASME Boiler and Pressure Vessel Code. 54.01-2...division 1 of section VIII of the ASME Boiler and Pressure Vessel Code. (a...accordance with section VIII of the ASME Boiler and Pressure Vessel Code...

  3. Structural cooling fluid tube for supporting a turbine component and supplying cooling fluid to transition section

    DOEpatents

    Charron, Richard; Pierce, Daniel

    2015-08-11

    A shaft cover support for a gas turbine engine is disclosed. The shaft cover support not only provides enhanced support to a shaft cover of the gas turbine engine, but also includes a cooling fluid chamber for passing fluids from a rotor air cooling supply conduit to an inner ring cooling manifold. Furthermore, the shaft cover support may include a cooling shield supply extending from the cooling fluid chamber between the radially outward inlet and the radially inward outlet on the radially extending region and in fluid communication with the cooling fluid chamber for providing cooling fluids to a transition section. The shaft cover support may also provide additional stiffness and reduce interference of the flow from the compressor. In addition, the shaft cover support accommodates a transition section extending between compressor and turbine sections of the gas turbine engine.

  4. College of Engineering & Computer Science Civil Engineering Name

    E-print Network

    Mohan, Chilukuri K.

    College of Engineering & Computer Science Civil Engineering Name Fall 2010 SUID LaGuardia Community. Fundamentals I (3 or 4) MAE213 MAE251 Thermodynamics (4) MAE251 CIVIL ENGINEERING (41) D=16.00 CIE272 Civil Engineering Analysis 3 CIE274 Civil & Environmental Engr. Syst 3 CIE327/MAE341 Fluid Mechanics 4 CIE331

  5. College of Engineering & Computer Science Civil Engineering Name

    E-print Network

    Mohan, Chilukuri K.

    College of Engineering & Computer Science Civil Engineering Name Fall 2010 SUID Oakton Community 212 ELE231 Elec. Engr. Fundamentals I (3 or 4) MAE251 Thermodynamics (4) CIVIL ENGINEERING (41) D=16.00 CIE272 Civil Engineering Analysis 3 CIE274 Civil & Environmental Engr. Syst 3 CIE327/MAE341 Fluid

  6. Boston University College of Engineering Division of Materials Science & Engineering

    E-print Network

    Lin, Xi

    Boston University College of Engineering Division of Materials Science & Engineering MEng Program of Tissue Engineering ENG MS/BE 736 Biomedical Transport Phenomena ENG MS/ME 742 Bio-fluids and Structural Concepts in Engineering ENG MS/ME 526 Simulation of Physical Processes ENG MS/ME 534 Materials Technology

  7. D.E. Berg, M.A. Rumsey, J.R. Zayas, "Hardware and Software Developments for the Accurate Time-Linked Data Acquisition System", 2000 ASME Wind Energy Symposium, AIAA/ASME, 2000.

    E-print Network

    -Linked Data Acquisition System", 2000 ASME Wind Energy Symposium, AIAA/ASME, 2000. HARDWARE AND SOFTWARE DEVELOPMENTS FOR THE ACCURATE TIME-LINKED DATA ACQUISITION SYSTEM* Dale E. Berg, Mark A. Rumsey Wind Energy Corporation Albuquerque, New Mexico Abstract Wind-energy researchers at Sandia National Laboratories have

  8. D.E. Berg, P. Robertson, and J.R. Zayas," ATLAS: A Small, Light Weight, Time-Synchronized Wind-Turbine Data Acquisition System,"1999 ASME Wind Energy Symposium, AIAA/ASME, 1999, pp. 236-242.

    E-print Network

    -Turbine Data Acquisition System,"1999 ASME Wind Energy Symposium, AIAA/ASME, 1999, pp. 236-242. AIAA-99 Mexico 87185-0708 ABSTRACT Wind energy researchers at Sandia National Laboratories have developed a smallD.E. Berg, P. Robertson, and J.R. Zayas," ATLAS: A Small, Light Weight, Time-Synchronized Wind

  9. D.E. Berg and J.R. Zayas, "Accurate Time-Linked Data Acquisition System Field Deployment And Operational Experience,"2001 ASME Wind Energy Symposium, AIAA/ASME, 2001,

    E-print Network

    D.E. Berg and J.R. Zayas, "Accurate Time-Linked Data Acquisition System Field Deployment And Operational Experience,"2001 ASME Wind Energy Symposium, AIAA/ASME, 2001, pp.153-161 ACCURATE TIME-LINKED DATA Laboratories Albuquerque, New Mexico 87185-0708 ABSTRACT The Accurate Time-Linked Data Acquisition System

  10. 14 CFR 27.1185 - Flammable fluids.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... isolating that tank, unless equivalent means are used to prevent heat transfer from each engine compartment... leak must be covered or treated to prevent the absorption of hazardous quantities of fluids....

  11. Fluid dynamics: Turbulence spreads like wildfire

    NASA Astrophysics Data System (ADS)

    Graham, Michael D.

    2015-10-01

    A simple model captures the key features of the transition from smooth to turbulent flow for a fluid in a pipe. The findings pave the way for more-complex models and may have engineering ramifications. See Letter p.550

  12. Flowmeter for Clear and Translucent Fluids

    NASA Technical Reports Server (NTRS)

    White, P. R.

    1985-01-01

    Transducer with only three moving parts senses flow of clear or translucent fluid. Displacement of diaphragm by force of flow detected electrooptically and displayed by panel meter or other device. Transducer used to measure flow of gasoline to automobile engine.

  13. Master of Engineering in Engine Systems

    E-print Network

    Evans, Paul G.

    companies that design and manufacture internal combustion engines of all sizes--from lawn mowers to diesel is specifically designed for professional engineers, allowing integration of your studies with your career. Your will gain broad technical knowledge in: Combustion Design Material science Fluid mechanics Electronics

  14. Nonlinear dynamics of three dimensional fluid flow separation

    E-print Network

    Surana, Amit

    2007-01-01

    Flow separation (the detachment of fluid from a no-slip boundary) is a major cause of performance loss in engineering devices, including diffusers, airfoils and jet engines. The systematic study of flow separation dates ...

  15. Fundamental Issues of Nano-fluid Behavior

    SciTech Connect

    Williams, Wesley C.

    2006-07-01

    This paper will elucidate some of the behaviors of nano-fluids other than the abnormal conductivity enhancement, which are of importance to the experimental and engineering use of nano-fluids. Nano-fluid is the common name of any sol colloid involving nano-scale (less than 100 nm) sized particles dispersed within a base fluid. It has been shown previously that the dispersion of nano-particulate metallic oxides into water can increase thermal conductivity up to 30-40% over that of the base fluid and anomalously more than the mere weighed average of the colloid. There is a great potential for the use of nano-fluids as a way to enhance fluid/thermal energy transfer systems. Due to the recentness of nano-fluid science, there are still many issues which have not been fully investigated. This paper should act as a primer for the basic understanding of nano-fluid behavior. Particle size and colloid stability are of key importance to the functionality of nano-fluids. The pH and concentration/loading of nano-fluids can alter the size of the nano-particles and also the stability of the fluids. It will be shown through experiment and colloid theory the importance of these parameters. Furthermore, most of the existing literature uses volume percentage as the measure of particle loading, which can often be misleading. There will be discussion of this and other misleading ideas in nano-fluid science. (author)

  16. Magnetic Fluids Deliver Better Speaker Sound Quality

    NASA Technical Reports Server (NTRS)

    2015-01-01

    In the 1960s, Glenn Research Center developed a magnetized fluid to draw rocket fuel into spacecraft engines while in space. Sony has incorporated the technology into its line of slim speakers by using the fluid as a liquid stand-in for the speaker's dampers, which prevent the speaker from blowing out while adding stability. The fluid helps to deliver more volume and hi-fidelity sound while reducing distortion.

  17. Computational fluid dynamics: Complex flows requiring supercomputers. (Latest citations from the iINSPEC: Information Services for the Physics and Engineering Communities data base). Published Search

    SciTech Connect

    Not Available

    1992-09-01

    The bibliography contains citations concerning computational fluid dynamics (CFD), a new method in computational science to perform complex flow simulations in three dimensions. Applications include aerodynamic design and analysis for aircraft, rockets and missiles, and automobiles; heat transfer studies; and combustion processes. Included are references to supercomputers, array processors, and parallel processors where needed for complete, integrated design. Also included are software packages and grid generation techniques required to apply CFD numerical solutions. (Contains 250 citations and includes a subject term index and title list.)

  18. 1 Copyright 2007 by ASME Proceedings of ICEF07

    E-print Network

    Papalambros, Panos

    -TIME, SELF-LEARNING OPTIMIZATION OF DIESEL ENGINE CALIBRATION Andreas A. Malikopoulos Dennis N. Assanis time. This paper examines real-time, self-learning calibration of a diesel engine with respect to two promising simulation-based results are included. Keywords: diesel engine calibration, engine management

  19. GUIDELINE FOR FLUID MODELING OF ATMOSPHERIC DIFFUSION

    EPA Science Inventory

    The fundamental principles for fluid modeling of flow and dispersion of pollutants in the atmospheric boundary layer are reviewed. The usefulness of fluid models are evaluated from both scientific and engineering viewpoints. Because many detailed decisions must be made during the...

  20. Ocean Engineering Development Team

    E-print Network

    Wood, Stephen L.

    the same conditions). 3) To demonstrate a working knowledge of fluid mechanics, naval architecture Focus: Naval Architecture and Submersible Systems Mirela Dalanaj Specialization: Design/Drafting Major: Ocean Engineering, Junior Focus: Naval Architecture and Small Craft Design Jason Gray Specialization

  1. Fluid Shifts

    NASA Technical Reports Server (NTRS)

    Stenger, Michael; Hargens, A.; Dulchavsky, S.; Ebert, D.; Lee, S.; Sargsyan, A.; Martin, D.; Lui, J.; Macias, B.; Arbeille, P.; Platts, S.

    2014-01-01

    NASA is focusing on long-duration missions on the International Space Station (ISS) and future exploration-class missions beyond low Earth orbit. Visual acuity changes observed after short-duration missions were largely transient, but more than 30% of ISS astronauts experience more profound, chronic changes with objective structural and functional findings such as papilledema and choroidal folds. Globe flattening, optic nerve sheath dilation, and optic nerve tortuosity also are apparent. This pattern is referred to as the visual impairment and intracranial pressure (VIIP) syndrome. VIIP signs and symptoms, as well as postflight lumbar puncture data, suggest that elevated intracranial pressure (ICP) may be associated with the space flight-induced cephalad fluid shifts, but this hypothesis has not been tested. The purpose of this study is to characterize fluid distribution and compartmentalization associated with long-duration space flight, and to correlate these findings with vision changes and other elements of the VIIP syndrome. We also seek to determine whether the magnitude of fluid shifts during space flight, as well as the VIIP-related effects of those shifts, is predicted by the crewmember's pre-flight condition and responses to acute hemodynamic manipulations (such as head-down tilt). Lastly, we will evaluate the patterns of fluid distribution in ISS astronauts during acute reversal of fluid shifts through application of lower body negative pressure (LBNP) interventions to characterize and explain general and individual responses. We will examine a variety of physiologic variables in 10 long-duration ISS crewmembers using the test conditions and timeline presented in the Figure below. Measures include: (1) fluid compartmentalization (total body water by D2O, extracellular fluid by NaBr, intracellular fluid by calculation, plasma volume by CO rebreathe, interstitial fluid by calculation); (2) forehead/eyelids, tibia, calcaneus tissue thickness (by ultrasound); (3) vascular dimensions by ultrasound (jugular veins, cerebral and carotid arteries, vertebral arteries and veins, portal vein); (4) vascular dynamics by MRI (head/neck blood flow, cerebrospinal fluid pulsatility); (5) ocular measures (optical coherence tomography, intraocular pressure, 2-dimensional ultrasound including optic nerve sheath diameter, globe flattening, and retina-choroid thickness, Doppler ultrasound of ophthalmic and retinal arteries, and veins); (6) cardiac variables by ultrasound (inferior vena cava, tricuspid flow and tissue Doppler, pulmonic valve, stroke volume, right heart dimensions and function, four-chamber views); and (7) ICP measures (tympanic membrane displacement, distortion-product otoacoustic emissions, and ICP calculated by MRI). On the ground, acute head-down tilt will induce cephalad fluid shifts, whereas LBNP will oppose these shifts. Controlled Mueller maneuvers will manipulate cardiovascular variables. Through interventions applied before, during, and after flight, we intend to fully evaluate the relationship between fluid shifts and the VIIP syndrome. This study has been selected for flight implementation and is one of the candidate investigations being considered for the one year mission.

  2. Development of a Standard for Verification and Validation of Software Used to Calculate Nuclear System Thermal Fluids Behavior

    SciTech Connect

    Richard R. Schultz; Edwin A. Harvego; Ryan L. Crane

    2010-05-01

    With the resurgence of nuclear power and increased interest in advanced nuclear reactors as an option to supply abundant energy without the associated greenhouse gas emissions of the more conventional fossil fuel energy sources, there is a need to establish internationally recognized standards for the verification and validation (V&V) of software used to calculate the thermal-hydraulic behavior of advanced reactor designs for both normal operation and hypothetical accident conditions. To address this need, ASME (American Society of Mechanical Engineers) Standards and Certification has established the V&V 30 Committee, under the responsibility of the V&V Standards Committee, to develop a consensus Standard for verification and validation of software used for design and analysis of advanced reactor systems. The initial focus of this committee will be on the V&V of system analysis and computational fluid dynamics (CFD) software for nuclear applications. To limit the scope of the effort, the committee will further limit its focus to software to be used in the licensing of High-Temperature Gas-Cooled Reactors. In this framework, the standard should conform to Nuclear Regulatory Commission (NRC) practices, procedures and methods for licensing of nuclear power plants as embodied in the United States (U.S.) Code of Federal Regulations and other pertinent documents such as Regulatory Guide 1.203, “Transient and Accident Analysis Methods” and NUREG-0800, “NRC Standard Review Plan”. In addition, the standard should be consistent with applicable sections of ASME Standard NQA-1 (“Quality Assurance Requirements for Nuclear Facility Applications (QA)”). This paper describes the general requirements for the V&V Standard, which includes; (a) the definition of the operational and accident domain of a nuclear system that must be considered if the system is to licensed, (b) the corresponding calculational domain of the software that should encompass the nuclear operational and accident domain to be used to study the system behavior for licensing purposes, (c) the definition of the scaled experimental data set required to provide the basis for validating the software, (d) the ensemble of experimental data sets required to populate the validation matrix for the software in question, and (e) the practices and procedures to be used when applying a validation standard. Although this initial effort will focus on software for licensing of High-Temperature Gas Reactors, it is anticipated that the practices and procedures developed for this standard can eventually be extended to other nuclear and non-nuclear applications.

  3. Magnetic fluids

    NASA Astrophysics Data System (ADS)

    Rosensweig, R. E.

    1982-10-01

    An overview of studies done on ferrofluids is presented, and recently discovered technological uses for such a fluid are examined. By interacting magnetization and pressure, a ferrofluid plug, held in place by a focused magnetic field imposed from the outside, serves as an airtight seal in rotating machinery. A 160 stage rotary seal has withstood a pressure differential of 66 atmospheres. The fluid has also proved useful in the design of loudspeakers, as it does not drip out of the gap in the cylindrical permanent magnet which allows the voice coil to move, thus serving as a coolant for the system. Finally, the fluid can be used to separate materials according to density, as the magnetic-levitation forces that can be established in the fluid are strong enough to float materials of any density. Other applications are being explored, such as an induced convection that can be much more vigorous than simple gravity convection when a gradient magnetic field is applied to a heated ferrofluid.

  4. Atmospheric fluid bed cogeneration air heater experiment

    SciTech Connect

    Bynum, J.E.; Ellis, F.V.; Roberts, B.W. . Metallurgical and Materials Lab.)

    1990-02-28

    The AFB Cogeneration Air Heater Experiment is a testing program under contract with the Department of Energy through Westinghouse Electric Corporation to obtain data for designing a coal-fired circulating fluidized bed cogeneration plant producing steam, electricity, and hot air for an applicable industrial customer. The hot air portion of the system involves a fluid bed heat exchanger which gives up heat to air cooled tubes. Clean compressed air enters the tubes at 520F and is heated to 1500F. The proposed material for the heat exchanger tubes is Type 304H Stainless Steel. The AFB unit will be designed by the rules specified in Section I or Section VIII, Division 1 of the ASME Boiler and Pressure Vessel Code which includes tables of maximum allowable stresses for various materials as a function of temperature. For Type 304H Stainless Steel, the allowable stress values in the Code are only given to a maximum temperature of 1500F. To heat air inside the heat exchanger tubes to 1500F, the outside metal temperature will obviously exceed that level. Therefore, the purpose of this subtask is to obtain data required to apply for Code certification of TP 304H SS at metal temperatures up to 1650F. A series of tensile and creep-rupture tests were conducted on Type 304H Stainless Steel bar with the objective of extending the allowable stress tables in the ASME Boiler and Pressure Vessel Code for this material from 1500F to 1650F. Material representing five heats of 3/4-inch diameter bar was procured for which three heats were selected for the test program. Final heat selection was based on chemical analysis, metallographic structure, room-temperature tensile properties, and short-term creep-rupture screening tests.

  5. R fluids

    E-print Network

    R. Caimmi

    2007-10-20

    A theory of collisionless fluids is developed in a unified picture, where nonrotating figures with anisotropic random velocity component distributions and rotating figures with isotropic random velocity component distributions, make adjoints configurations to the same system. R fluids are defined and mean and rms angular velocities and mean and rms tangential velocity components are expressed, by weighting on the moment of inertia and the mass, respectively. The definition of figure rotation is extended to R fluids. The generalized tensor virial equations are formulated for R fluids and further attention is devoted to axisymmetric configurations where, for selected coordinate axes, a variation in figure rotation has to be counterbalanced by a variation in anisotropy excess and vice versa. A microscopical analysis of systematic and random motions is performed under a few general hypotheses, by reversing the sign of tangential or axial velocity components of an assigned fraction of particles, leaving the distribution function and other parameters unchanged (Meza 2002). The application of the reversion process to tangential velocity components, implies the conversion of random motion rotation kinetic energy into systematic motion rotation kinetic energy. The application of the reversion process to axial velocity components, implies the conversion of random motion translation kinetic energy into systematic motion translation kinetic energy, and the loss related to a change of reference frame is expressed in terms of systematic (imaginary) motion rotation kinetic energy. A procedure is sketched for deriving the spin parameter distribution (including imaginary rotation) from a sample of observed or simulated large-scale collisionless fluids i.e. galaxies and galaxy clusters.

  6. Processteknikens grunder ("PTG") Introduction to Process Engineering

    E-print Network

    Zevenhoven, Ron

    transfer (conduction, convection, radiation) (10-12) Fluid flow and Tube flow (8-10) Exercises / Old will be the first and last engineering course : take a look...... 4/28 What is a process? "A process occurs whenever Liquid solvent + CO2 #12;7/28 Chemical process engineering ThermodynamicsHeat transfer Fluids engineering

  7. Concept of planetary gear system to control fluid mixture ratio

    NASA Technical Reports Server (NTRS)

    Mcgroarty, J. D.

    1966-01-01

    Mechanical device senses and corrects for fluid flow departures from the selected flow ratio of two fluids. This system has been considered for control of rocket engine propellant mixture control but could find use wherever control of the flow ratio of any two fluids is desired.

  8. APSAPS--DFD09DFD09 Experimental Fluid Mechanics and

    E-print Network

    Wolberg, George

    APSAPS--DFD09DFD09 Experimental Fluid Mechanics and Aerodynamics Laboratory Department Experimental Fluid Mechanics and Aerodynamics Laboratory Department of Mechanical Engineering City College=dipole density D=E+P Matrix of piezoelectric coefficients #12;APSAPS--DFD09DFD09 Experimental Fluid Mechanics

  9. Proceedings of the 1998 ASME energy sources technology conference (ETCE`98)

    SciTech Connect

    1998-12-31

    The approximately 160 papers in these proceedings have been arranged under the following topical sections: (1) Computers in engineering -- Technical databases and applied computing; Workgroup computing; Software process models; Internet computing; (2) Drilling technology -- Coiled tubing technology; Drilling dynamics and drilling systems; Advances in drill bits; Advances in percussion drilling; Testing field and laboratory; Novel/scientific drilling; Advances in drilling fluids; (3) Emerging energy technology -- Spray and combustion; Fuel cells; Flammability and flames; Fuels and engines; Miscellaneous combustion topics; (4) Composite materials design and analysis -- Interaction of cracks, notched strength, and free edge effects in laminated composites; Stress analysis of composites; Material response identification, property alteration, damage detection, and environmental effects; Wave propagation in elastic medium, numerical methods for composites; Process and property characterization of advanced materials; Fatigue degradation, viscoplasticity in composites, and numerical simulation of reinforced concrete structures; Aging, creep, plastic anisotropy, joining of different materials, and time history analysis; Shock fronts in compressible medium; Numerical simulation of propagating fronts and shocks in compressible medium; Computational methods and numerical simulation; Analysis and modeling techniques; (5) Manufacturing and services -- Drilling equipment; Process equipment; Patents and intellectual property; Computational methods in manufacturing; (6) Non-destructive evaluation engineering -- NDE applications: Visual inspections; Material property determination/flaw sizing; (7) Offshore engineering and operations -- Environmental and safety issues in offshore operations; Floating production system; Offshore topside facilities; Offshore facility infrastructure; Offshore structures and pipelines; (8) Pipeline engineering and operations -- Pipeline risk management; Pipeline integrity; Evaluation and rehabilitation; Multiphase flow; Pipeline simulation; Pipeline design and operations; New technology; Erosion and corrosion; (9) Plant engineering and reliability -- Reliability methods; Reliability techniques; (10) Petroleum production technology -- Pipeline risk management; Multiphase flow; Multiphase flow equipment; Drilling fluids and completions; Erosion and corrosion; Multiphase pumping; (11) Tribology -- Manufacturing processes; Land-based gas turbine research; Lubrication, tribo-physics and tribo-chemistry. Papers within scope have been processed separately for inclusion on the database.

  10. Proceedings of GT'03 2003 ASME/IGTI Turbo Expo

    E-print Network

    Simon, Dan

    -38584 AIRCRAFT TURBOFAN ENGINE HEALTH ESTIMATION USING CONSTRAINED KALMAN FILTERING Dan Simon Department and shown via simulation results obtained from application to a turbofan engine model. This model contains of Electrical and Computer Engineering Cleveland State University Cleveland, Ohio 44115 Email: d

  11. 1 Copyright 2001 by ASME Proceedings of the

    E-print Network

    Pennycook, Steve

    ], Honeywell Engines & Systems [2], Siemens Power Generation [3], CRIEPI in Japan [4, 5], "Keiser rig" testing at Oak Ridge National Laboratory (ORNL) [6], and engine testing in the Allison 501K industrial gas development engineers some guidance with respect to the different test facility capabilities

  12. Faculty of Engineering Industrial and Manufacturing

    E-print Network

    Faculty of Engineering Industrial and Manufacturing Systems Engineering Industrial engineers answer in the engineering disciplines · Thermodynamics, fluids and heat transfer #12;Industrial and Manufacturing Systems the needs of organizations to operate efficiently and cost effectively. As an industrial engineer, you may

  13. Peritoneal Fluid Analysis

    MedlinePLUS

    ... Home Visit Global Sites Search Help? Peritoneal Fluid Analysis Share this page: Was this page helpful? Formal name: Peritoneal Fluid Analysis Related tests: Pleural Fluid Analysis , Pericardial Fluid Analysis , ...

  14. Pericardial Fluid Analysis

    MedlinePLUS

    ... Home Visit Global Sites Search Help? Pericardial Fluid Analysis Share this page: Was this page helpful? Formal name: Pericardial Fluid Analysis Related tests: Pleural Fluid Analysis , Peritoneal Fluid Analysis , ...

  15. Fluid extraction

    DOEpatents

    Wai, Chien M. (Moscow, ID); Laintz, Kenneth E. (Los Alamos, NM)

    1999-01-01

    A method of extracting metalloid and metal species from a solid or liquid material by exposing the material to a supercritical fluid solvent containing a chelating agent is described. The chelating agent forms chelates that are soluble in the supercritical fluid to allow removal of the species from the material. In preferred embodiments, the extraction solvent is supercritical carbon dioxide and the chelating agent is a fluorinated .beta.-diketone. In especially preferred embodiments the extraction solvent is supercritical carbon dioxide, and the chelating agent comprises a fluorinated .beta.-diketone and a trialkyl phosphate, or a fluorinated .beta.-diketone and a trialkylphosphine oxide. Although a trialkyl phosphate can extract lanthanides and actinides from acidic solutions, a binary mixture comprising a fluorinated .beta.-diketone and a trialkyl phosphate or a trialkylphosphine oxide tends to enhance the extraction efficiencies for actinides and lanthanides. The method provides an environmentally benign process for removing contaminants from industrial waste without using acids or biologically harmful solvents. The method is particularly useful for extracting actinides and lanthanides from acidic solutions. The chelate and supercritical fluid can be regenerated, and the contaminant species recovered, to provide an economic, efficient process.

  16. ITER's Tokamak Cooling Water System and the the Use of ASME Codes to Comply with French Regulations of Nuclear Pressure Equipment

    SciTech Connect

    Berry, Jan; Ferrada, Juan J; Curd, Warren; Dell Orco, Dr. Giovanni; Barabash, Vladimir; Kim, Seokho H

    2011-01-01

    During inductive plasma operation of ITER, fusion power will reach 500 MW with an energy multiplication factor of 10. The heat will be transferred by the Tokamak Cooling Water System (TCWS) to the environment using the secondary cooling system. Plasma operations are inherently safe even under the most severe postulated accident condition a large, in-vessel break that results in a loss-of-coolant accident. A functioning cooling water system is not required to ensure safe shutdown. Even though ITER is inherently safe, TCWS equipment (e.g., heat exchangers, piping, pressurizers) are classified as safety important components. This is because the water is predicted to contain low-levels of radionuclides (e.g., activated corrosion products, tritium) with activity levels high enough to require the design of components to be in accordance with French regulations for nuclear pressure equipment, i.e., the French Order dated 12 December 2005 (ESPN). ESPN has extended the practical application of the methodology established by the Pressure Equipment Directive (97/23/EC) to nuclear pressure equipment, under French Decree 99-1046 dated 13 December 1999, and Order dated 21 December 1999 (ESP). ASME codes and supplementary analyses (e.g., Failure Modes and Effects Analysis) will be used to demonstrate that the TCWS equipment meets these essential safety requirements. TCWS is being designed to provide not only cooling, with a capacity of approximately 1 GW energy removal, but also elevated temperature baking of first-wall/blanket, vacuum vessel, and divertor. Additional TCWS functions include chemical control of water, draining and drying for maintenance, and facilitation of leak detection/localization. The TCWS interfaces with the majority of ITER systems, including the secondary cooling system. U.S. ITER is responsible for design, engineering, and procurement of the TCWS with industry support from an Engineering Services Organization (ESO) (AREVA Federal Services, with support from Northrop Grumman, and OneCIS). ITER International Organization (ITER-IO) is responsible for design oversight and equipment installation in Cadarache, France. TCWS equipment will be fabricated using ASME design codes with quality assurance and oversight by an Agreed Notified Body (approved by the French regulator) that will ensure regulatory compliance. This paper describes the TCWS design and how U.S. ITER and fabricators will use ASME codes to comply with EU Directives and French Orders and Decrees.

  17. Harmonic engine

    DOEpatents

    Bennett, Charles L.; Sewall, Noel; Boroa, Carl

    2014-08-19

    An engine based on a reciprocating piston engine that extracts work from pressurized working fluid. The engine includes a harmonic oscillator inlet valve capable of oscillating at a resonant frequency for controlling the flow of working fluid into of the engine. In particular, the inlet valve includes an inlet valve head and a spring arranged together as a harmonic oscillator so that the inlet valve head is moveable from an unbiased equilibrium position to a biased closed position occluding an inlet. Upon releasing the inlet valve the inlet valve head undergoes a single oscillation past the equilibrium positio to a maximum open position and returns to a biased return position close to the closed position to choke the flow and produce a pressure drop across the inlet valve causing the inlet valve to close. Protrusions carried either by the inlet valve head or piston head are used to bump open the inlet valve from the closed position and initiate the single oscillation of the inlet valve head, and protrusions carried either by the outlet valve head or piston head are used to close the outlet valve ahead of the bump opening of the inlet valve.

  18. Fluid behavior in microgravity environment

    NASA Technical Reports Server (NTRS)

    Hung, R. J.; Lee, C. C.; Tsao, Y. D.

    1990-01-01

    The instability of liquid and gas interface can be induced by the presence of longitudinal and lateral accelerations, vehicle vibration, and rotational fields of spacecraft in a microgravity environment. In a spacecraft design, the requirements of settled propellant are different for tank pressurization, engine restart, venting, or propellent transfer. In this paper, the dynamical behavior of liquid propellant, fluid reorientation, and propellent resettling have been carried out through the execution of a CRAY X-MP super computer to simulate fluid management in a microgravity environment. Characteristics of slosh waves excited by the restoring force field of gravity jitters have also been investigated.

  19. ENGINEERING TECHNOLOGY Engineering Technology

    E-print Network

    specialized program concentrations: Aircraft Maintenance Technology, Engineering Technology Management: aerospace, computer, electrical, industrial, bioengineering, manufacturing, mechanical, and engineeringENGINEERING TECHNOLOGY Engineering Technology Program The Bachelor of Science in Engineering

  20. Three-Dimensional Computational Fluid Dynamics

    SciTech Connect

    Haworth, D.C.; O'Rourke, P.J.; Ranganathan, R.

    1998-09-01

    Computational fluid dynamics (CFD) is one discipline falling under the broad heading of computer-aided engineering (CAE). CAE, together with computer-aided design (CAD) and computer-aided manufacturing (CAM), comprise a mathematical-based approach to engineering product and process design, analysis and fabrication. In this overview of CFD for the design engineer, our purposes are three-fold: (1) to define the scope of CFD and motivate its utility for engineering, (2) to provide a basic technical foundation for CFD, and (3) to convey how CFD is incorporated into engineering product and process design.

  1. Acoustic energy-driven fluid pump and method

    SciTech Connect

    Janus, Michael C.; Richards, George A.; Robey, Edward H.

    1997-12-01

    Bulk fluid motion is promoted in a gaseous fluid contained within a conduit system provided with a diffuser without the need for a mean pressure differential across the conduit system. The contacting of the gaseous fluid with unsteady energy at a selected frequency and pressure amplitude induces fluid flow through the conical diffuser. The unsteady energy can be provided by pulse combustors, thermoacoustic engines, or acoustic energy generators such as acoustic speakers.

  2. 1 Copyright 2004 by ASME SINGLE HIGH ASPECT RATIO PILLAR SUPPORT STRUCTURES

    E-print Network

    to which nano-scale fibers are attached. Ultimately the roughness becomes so large that the insect itself1 Copyright © 2004 by ASME SINGLE HIGH ASPECT RATIO PILLAR SUPPORT STRUCTURES: Multi-scale Chip for conformance to the surface prior to larger scale conformation, thus the combination does not increase

  3. 1 Copyright 2003 by ASME 17th International Conference on Fluidised Bed Combustion

    E-print Network

    Zevenhoven, Ron

    of the two-stage process [4] is given in Fig.1. The system is composed of two fluidized bed reactors. The de1 Copyright © 2003 by ASME 17th FBC 17th International Conference on Fluidised Bed Combustion May.zevenhoven@hut.fi * Corresponding author ABSTRACT A process for two-stage combustion of high-PVC solid waste with HCl recovery

  4. 2009 ASME WIND ENERGY SYMPOSIUM Static and Fatigue Testing of Thick Adhesive Joints for

    E-print Network

    1 2009 ASME WIND ENERGY SYMPOSIUM Static and Fatigue Testing of Thick Adhesive Joints for Wind as wind blade size has increased. Typical blade joints use paste adhesives several millimeters thick aircraft, which are also of relevance to wind blades in many instances. The strengths of lap-shear and many

  5. PHASE I MATERIALS PROPERTY DATABASE DEVELOPMENT FOR ASME CODES AND STANDARDS

    SciTech Connect

    Ren, Weiju; Lin, Lianshan

    2013-01-01

    To support the ASME Boiler and Pressure Vessel Codes and Standard (BPVC) in modern information era, development of a web-based materials property database is initiated under the supervision of ASME Committee on Materials. To achieve efficiency, the project heavily draws upon experience from development of the Gen IV Materials Handbook and the Nuclear System Materials Handbook. The effort is divided into two phases. Phase I is planned to deliver a materials data file warehouse that offers a depository for various files containing raw data and background information, and Phase II will provide a relational digital database that provides advanced features facilitating digital data processing and management. Population of the database will start with materials property data for nuclear applications and expand to data covering the entire ASME Code and Standards including the piping codes as the database structure is continuously optimized. The ultimate goal of the effort is to establish a sound cyber infrastructure that support ASME Codes and Standards development and maintenance.

  6. IEEE/ASME TRANSACTIONS ON MECHATRONICS 1 Technologies for Powered Ankle-Foot Orthotic

    E-print Network

    Durfee, William K.

    IEEEProof IEEE/ASME TRANSACTIONS ON MECHATRONICS 1 Technologies for Powered Ankle-Foot Orthotic-Wecksler, Member, IEEE, William K. Durfee, and G´eza F. Kogler 3 4 Abstract--Ankle-foot orthoses (AFOs) can be used to produce power to move the foot.10 Emerging technologies provide a vision for fully powered, unteth-11 ered

  7. 1 Copyright 2013 by ASME SURFACE ELECTROMYOGRAPHIC CONTROL OF A HUMANOID ROBOT

    E-print Network

    Williams II, Robert L.

    robot with 20 degrees of freedom, integrated accelerometers, gyroscopes, cameras, Dynamixel MX-28 servos1 Copyright © 2013 by ASME SURFACE ELECTROMYOGRAPHIC CONTROL OF A HUMANOID ROBOT Alex W. Grammar MIn-OP humanoid robot. This work also details the analysis of the relationship between surface electromyographic

  8. Simulation and optimization of a coking wastewater biological treatment process by activated sludge models (ASM).

    PubMed

    Wu, Xiaohui; Yang, Yang; Wu, Gaoming; Mao, Juan; Zhou, Tao

    2016-01-01

    Applications of activated sludge models (ASM) in simulating industrial biological wastewater treatment plants (WWTPs) are still difficult due to refractory and complex components in influents as well as diversity in activated sludges. In this study, an ASM3 modeling study was conducted to simulate and optimize a practical coking wastewater treatment plant (CWTP). First, respirometric characterizations of the coking wastewater and CWTP biomasses were conducted to determine the specific kinetic and stoichiometric model parameters for the consecutive aeration-anoxic-aeration (O-A/O) biological process. All ASM3 parameters have been further estimated and calibrated, through cross validation by the model dynamic simulation procedure. Consequently, an ASM3 model was successfully established to accurately simulate the CWTP performances in removing COD and NH4-N. An optimized CWTP operation condition could be proposed reducing the operation cost from 6.2 to 5.5 €/m(3) wastewater. This study is expected to provide a useful reference for mathematic simulations of practical industrial WWTPs. PMID:26439861

  9. 1. WELDING SHALL BE PERFORMED IN ACCORDANCE WITH ASME SECTION IX. NO CODE STAMP REQUIRED.

    E-print Network

    McDonald, Kirk

    NOTES 1. WELDING SHALL BE PERFORMED IN ACCORDANCE WITH ASME SECTION IX. NO CODE STAMP REQUIRED. 2. ALL WELDS SHALL BE DYE PENETRANT INSPECTED. NO RADIOGRAPHY REQUIRED. 3. MATERIAL CERTIFICATIONS HOSE W/TUBING ENDS, 13.5 FACE-TO-FACE N/A 3 1 swagelok 1.0 pipe weld connector SS - 316L SWAGELOK PIPE

  10. 1 Copyright 2001 by ASME Enzyme based biosensors suffer from loss of activity and sen-

    E-print Network

    Liepmann, Dorian

    1 Copyright 2001 by ASME ABSTRACT Enzyme based biosensors suffer from loss of activity and sen of the sensor. These proteins affect sensor signal stability and disrupt enzyme function. Thus, one fruitful way in contact with the enzyme based biosensor. Further, the removal of free protein from biological solution

  11. ACC03-ASME0018 Controller Design for Flexible Systems with Friction

    E-print Network

    Singh, Tarunraj

    ACC03-ASME0018 Controller Design for Flexible Systems with Friction: Linear Programming Approach of friction is presented. A linear program- ming technique for finding an optimal control of linear flexible systems is extended to frictional systems. A floating oscillator is used in the development, where

  12. Notes on Crop Rotation Modeling in ASM Bruce A McCarl

    E-print Network

    McCarl, Bruce A.

    Notes on Crop Rotation Modeling in ASM Bruce A McCarl During the course of a project done jointly assumption regarding crop rotation is one of equilibrium. In a farm rotation model assuming equilibrium of 2 variables. First we have rotation variables giving total acres in each rotation and the crops

  13. 1 Copyright 2007 by ASME SIMULATION OF OFFSHORE WIND TURBINE RESPONSE FOR

    E-print Network

    Manuel, Lance

    1 Copyright © 2007 by ASME SIMULATION OF OFFSHORE WIND TURBINE RESPONSE FOR EXTREME LIMIT STATES P loads for an offshore wind turbine using simulation, statistical extrapolation is the method of choice based on stochastic response simulations of a 5 MW offshore turbine. We illustrate the use of the peak

  14. 1 Copyright 2001 by ASME In many microfluidic MEMS (Micro Electromechanical

    E-print Network

    Liepmann, Dorian

    1 Copyright © 2001 by ASME ABSTRACT In many microfluidic MEMS (Micro Electromechanical Systems for the development of advanced Micro Total Analysis Systems (µTAS). In many µTAS applications, for example drug delivery and rapid diagnostics, suspensions of solid particles flow from a large mixing/reaction chamber

  15. Proceedings of the ASME 3rd international symposium on turbomachinery, combined-cycle technologies and cogeneration

    SciTech Connect

    Serovy, G.K.; Fransson, T.H.; Farbi, J.

    1989-01-01

    This book contains the proceedings of the 1989 ASME Cogen-Turbo third international symposium. Topics covered include: Gas turbine cogeneration research at GRI; Efficient, clean cogeneration with the GE LM 1600, and the combined cycle--an economical system for production of electricity.

  16. Proceedings of IGTI 2009 ASME 2009 International Gas Turbine Institute Conference

    E-print Network

    Liu, Feng

    - istic of steam turbine blading in low pressure turbines. The re- sults demonstrate that the designProceedings of IGTI 2009 ASME 2009 International Gas Turbine Institute Conference June 8-12, 2009, Orlando,FL, USA GT2009-60115 THREE-DIMENSIONAL AERODYNAMIC DESIGN OPTIMIZATION OF A TURBINE BLADE BY USING

  17. Proceedings of IGTI 2010 ASME 2010 International Gas Turbine Institute Conference

    E-print Network

    Liu, Feng

    of design parameters. Three design cases are performed with a low-aspect-ratio steam turbine blade testedProceedings of IGTI 2010 ASME 2010 International Gas Turbine Institute Conference June 14-18, 2010 (Switzerland) Baden, Switzerland ABSTRACT For low-aspect-ratio turbine blades secondary loss reduc- tion

  18. 1 Copyright 2004 by ASME Proceedings of IMECE04

    E-print Network

    Müller, Norbert

    of a variety of engines and machinery utilizing thermodynamic cycles. Although there have been numerous efforts turbines, and water refrigeration systems, highlighting possible further efforts on this topic

  19. Granular Fluids

    E-print Network

    James W. Dufty

    2007-09-04

    The terminology granular matter refers to systems with a large number of hard objects (grains) of mesoscopic size ranging from millimeters to meters. Geological examples include desert sand and the rocks of a landslide. But the scope of such systems is much broader, including powders and snow, edible products such a seeds and salt, medical products like pills, and extraterrestrial systems such as the surface regolith of Mars and the rings of Saturn. The importance of a fundamental understanding for granular matter properties can hardly be overestimated. Practical issues of current concern range from disaster mitigation of avalanches and explosions of grain silos to immense economic consequences within the pharmaceutical industry. In addition, they are of academic and conceptual importance as well as examples of systems far from equilibrium. Under many conditions of interest, granular matter flows like a normal fluid. In the latter case such flows are accurately described by the equations of hydrodynamics. Attention is focused here on the possibility for a corresponding hydrodynamic description of granular flows. The tools of nonequilibrium statistical mechanics, developed over the past fifty years for fluids composed of atoms and molecules, are applied here to a system of grains for a fundamental approach to both qualitative questions and practical quantitative predictions. The nonlinear Navier-Stokes equations and expressions for the associated transport coefficients are obtained.

  20. The transformation of heat in an engine

    NASA Technical Reports Server (NTRS)

    Neumann, Kurt

    1929-01-01

    This report presents a thermodynamic basis for rating heat engines. The production of work by a heat engine rests on the operation of supplying heat, under favorable conditions, to a working fluid and then taking it away.