... BENZENE, PURIFICATION, HYDROCARBONS, TRANSLATIONS, INDUSTRIAL ENGINEERING, PATENTS, OVENS, INDUSTRIAL EQUIPMENT ...

... Title : Metallic Atoms Concentrations Measurements in an Industrial Low Voltage Circuit Breaker Using Broad Band Absorption Spectroscopy. ...

... National Defense Industrial Association ... AND TECHNOLOGY ORGANISATION CANBERRA ... FITNESS, AUSTRALIA, PSYCHOLOGY, BIOLOGICAL ...

The company performs continuous absorption of fluorine - containing waste gas. This low-waste technology is a continuous method for absorption of SiF4 from waste gas of the phosphate-fertilizer industry. It works upon the principle of turbogrid absorption...

Absorption heat pumps are a viable technology for waste heat recovery in industry. Yet, no US applications exist to date. In sharp contrast, large scale heat pumps are used in Japan, and a few recent installations have been reported in Europe. This paper ...

... INDUSTRIAL APPLICATIONS, *RADIOACTIVE MATERIALS, ABSORPTION, CELLS, HEATING, MICROWAVE OVENS, OVENS, TEMPERATURE ...

, "Remote near infrared spectrometry in the food industry with the use of silica and fluoride glass fiber

... in this report include the treatment of waste waters, and municipal and industrial sludges by soil absorption, anaerobic digestion and carbon ...

... but has assembled and carefully reviewed the scientific literature of studies that have investigated the oral dosage and intestinal absorption of the ...

... on the pharmacodynamic, pharmacokinetic, and safety characteristics of the ... trial(s), ECG reading by machine has a role ... in the rate of absorption or metabolism. ...

... major factors that govern the rate and extent of drug absorption from IR solid oral dosage forms: dissolution, solubility, and intestinal permeability. ...

... not contain any excipient that significantly affects drug absorption (21 CFR ... can reduce the bioavailability of drugs with low intestinal permeability in ...

absorption rate of carbon dioxide by potassium carbonate solutions in a Stephens -Morris disc column, The characteristics of the absorp- ...

The company performs continuous absorption of fluorine - containing waste gas. This low-waste technology is a continuous method for absorption of SiF4 from waste gas of the phosphate-fertilizer industry. It works upon the principle of turbogrid absorption. In an absorption tower, the waste gas ...

In this work, the combined effect of refrigeration and gamma irradiation on diverse physical parameters to be measured in mushrooms was studied. Mushrooms (Agaricus Campestris), 'bisporus' variety, of closed cap, were used. From the treatments tested, it ...

A new radiometer is described which simplifies measurement of the radiation supply of solar wavelengths. Two methods of measuring the radiant energy absorbed by aerosol particles are described: A photometric technique is used for particles collected on filters, and a calorimetric technique is used for in situ measurements. Data collected with the radiometer and the light ...

BestPractices Steam tip sheet about using low grade waste steam to power absorption chillers in steam systems.

BestPractices Steam tip sheet about using low grade waste steam to power absorption chillers in steam systems.

A multi-sector international group of government, academic, and industry scientists has developed a proposal for an improved testing scheme for assessing the safety of crop protection chemicals. Incorporation of pharmacokinetic studies describing the absorption, distribution, me...

The first step in the economic analysis of the integration of geothermally powered absorption refrigeration into a food processing plant was an evaluation of the potential geothermal sites in the Western United States. The evaluation covered availability ...

Absorption heat pumps have received renewed and increasing attention in the past two decades. The rising cost of electricity has made the particular features of this heat-powered cycle attractive for both residential and industrial applications. Solar-pow...

Heat transformers are absorption heat pumps that boost the temperature of industrial waste heat. Solutions of lithium bromide-water are commonly employed in heat transformers. Although these solutions have many desirable properties, they exhibit a drawbac...

The development of tunable diode laser absorption sensors for measurements in industrial boilers, both through direct absorption and evanescent wave absorption have been performed in the work presented here. These sensors use both direct and indirect absorption through the use of evanescent ...

Research performed to obtain the radiofrequency-induced power absorption patterns in models of humans and animal and to extrapolate the results to humans is described. Various models of animals and humans were exposed to radiofrequency fields and power absorption patterns and the rates of power absorption at specific anatomical ...

... the growth of an ice sheet and the effect of solar energy absorbed on the ... It is estimated that 105,000 lb of industrial slag of dark color (absorptivity ...

A comprehensive knowledge of the absorption, distribution, metabolism and elimination of a compound is important for the interpretation of pharmacology and toxicology studies. Tissue distribution studies are essential in providing information on distribut...

The consensus among the industry sponsors is that HQ resonator technology could be an attractive augmentation of traditional absorptive linings because of ...

A comprehensive survey of the current state of the absorption cooling technology has been conducted. This survey discusses the basic and applied absorption cooling/heating technology, analyses the current state of the art including the discussion of limitations and possible solutions, identifies areas where promising developments are indicated, lists the ...

The concept of a thermal powered absorption heat pump is not a new or revolutionary idea. It has been successfully demonstrated in the lab and prototypes have been installed in the field. Units have been successfully applied in a number of industrial and commercial installations. Even more has been written about absorption heat pumping ...

The paper analyzes the impact of rising oil prices on the oil-importing, industrialized countries, specifically the United States. Five effects of rising oil prices are considered: the effect on inflation, on income distributions, on employment, on resource absorption and on economic growth. (KRM)

This report is part of a growing body of research exploring the possible uses and recycling capacity of sulphur gypsum, the residual sulphuric mud obtained from the absorption of sulphur dioxide by lime. It offers useful suggestions for the reutilization ...

Recent innovative work by the Nippon Electric Co. (NEC) Tokyo, Japan, on a ferrite precipitation method for removing heavy metal ions from industrial waste water and the subsequent potential use of this material (ferrite sludge) as a cheap microwave absor...

The refrigerated trailer and container segments of the transportation industry are evaluated as potential entry markets for a proposed absorption refrigeration technology. To perform this analysis the existing transportation refrigeration industry is char...

Nitric oxide is removed from industrial gases by absorption in an aqueous solution containing ferrous ion and a chelate ligand in the form of a ferrous chelate complex which captures the nitric oxide (NO) as a nitrosyl ligand.

A description is given of a number of instruments for measuring density, level, and suliur content intended for use in the chemical and petrochemical industries. The instruments are based on the absorption properties of matter for radiation emitted by radioactive sources. (auth)

Absorption systems have two major applications: first, in refrigeration and air conditioning engineering, where the are used for absorption refrigeration machines and heat pumps, and secondly in the chemical industry, where they are used in particular for...

Contents: Study on IR Absorption Spectra of Kaolinite Minerals by Glass-slide Reflection Method (I) IR Absorption Spectra of Kaolinite Minerals; Study on IR Absorption Spectra of Kaolinite Minerals by Glass-slide Reflection Method (II) Transformation of t...

IS -= exp (4) Equation (1) describes the absorption of heat generated by the laser beam in the electron(t), and the material absorption co-efficient . 2. EXPERIMENTAL 2.1 Experimental Set-up The femtosecond laser machining for industrial applications and for optical devices due to the custom optical absorption ...

A total-absorption calorimeter was studied from the point of the materials, the size, and the structure for calibration of the medium-energy electron beams in radiation processing. The calorimeter with graphite core with 40 mm in diameter and 12 mm in thickness is useful for 3 MeV class electrons. A surrounding ring for the calorimeter core is found to be effective for ...

The US Department of Energy (DOE) is working with partners from the gas cooling industry to improve energy efficiency and US competitiveness by using advanced absorption technologies that eliminate the use of chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs), refrigerants that contribute to ozone depletion and global warming. ...

The infrared absorption spectra of 28 coal tar and petroleum pitches were measured to discover the factors responsible for the quality of pitch when used as a binder in the manufacture of electrodes for the aluminium industry. The good pitches whether derived from coal or petroleum were associated with a high background absorption, and ...

The absorption spectra of 49% 73% and 98% sulfuric acid water solutions for wavelengths of 0.3-6.5. and those of ammonium sulfate for 0.3-25 are either measured for the purposes of this study or quoted from the literature. Sulfuric acid water solutions have an absorption in the range 1.6-6.5. Absorption by 49% and 73% solutions is ...

The abiding problem of vibration absorption has occupied engineering scientists for over a century and there remain abundant examples of the need for vibration suppression in many industries. For example, in the automotive industry the resolution of noise, vibration and harshness (NVH) problems is of extreme importance to customer ...

The long-term impact of the new oil prices on the absorptive capacity of the oil-based economies has been analyzed from the standpoint of the domestic economics of these countries. This paper extends the concept of absorptive capacity to incorporate the effects of regional integration and industrialization in the Arab states of the ...

In recent years, business operation tends to be internationalized and the production cost increases day by day, the technology promotion of Taiwan`s hi-tech enterprises met its bottleneck; lots of industries have introduced Knowledge Management (KM) and emphasized the knowledge absorptive capacity of the employees to promote the organizational business ...

The article deals with analysis of electromagnetic safety for individuals who operate high-frequency devices heating dielectrics. The authors suggest a surface integral equation, present calculations of the electric field intensity and specific absorption rate for electromagnetic energy by biologic objects and analyze various floor covering materials for ...

A theoretical and experimental study has demonstrated that an absorption heat pump with a water-lithium bromide thermodynamic couple has a practical coefficient of performance of 1.4-1.6 when providing a 280/sup 0/F heat source. The ability to serve as a high-temperature heat source makes this heat pump suitable for certain industrial processes such as ...

This bibliography contains citations concerning the analysis and treatment of effluents from the coating industry. Filters used for solvent absorption and recovery, activated-carbon absorption of paint fumes, hydrogen peroxide treatment of wastes, effluent heat recovery, and biological treatments are discussed. (This updated ...

This bibliography contains citations concerning the analysis and treatment of effluents from the coating industry. Filters used for solvent absorption and recovery, activated carbon absorption of paint fumes, hydrogen peroxide treatment of wastes, effluent heat recovery, and biological treatments are discussed. (This updated ...

This report describes possible applications of absorption heat transformers (AHT) and dielectric heating (microwaves) in the wood products industry. The considered applications of AHT are recovering of waste steam from refiners and recovering of heat from...

A real-life analytical assignment is presented to students, who had to examine an air conditioning coolant solution for metal contamination using an atomic absorption spectroscopy (AAS). This hands-on access to a real problem exposed the undergraduate students to the mechanism of AAS, and promoted participation in a simulated industrial activity.

Installed industrial refrigeration (not counting space conditioning) capacity in the U.S. is approximately 3,000,000 tons. Average electrical use for industrial refrigeration is about 1,000,000 kW. Agricultural industries account for 90 percent of the ref...

The significant and rapid reduction of greenhouse gas emissions is recognized as necessary to mitigate the potential climate effects from global warming. The postcombustion capture (PCC) and storage of carbon dioxide (CO2) produced from the use of fossil fuels for electricity generation is a key technology needed to achieve these reductions. The most mature technology for CO2 capture is reversible ...

Trace quantities of zinc, cadmium, lead, bismuth, and copper were determined simultaneously in industrial and domestic effluents by differential pulse anodic stripping voltammetry following digestion in a closed system. Fifteen types of effluents of different industrial processings were employed. A procedure for providing low blank buffer and electrolyte ...

This bibliography contains citations concerning architectural and engineering acoustics associated with noise control in industrial environments. Important sources of industrial noise and the level of exposure by workers to noise are examined. Methods for active attenuation of noise, that is, the cancelling of a noise by the addition of further noise is ...

This bibliography contains citations concerning architectural and engineering acoustics associated with noise control in industrial environments. Important sources of industrial noise and the level of exposure by workers to noise are examined. Methods for active attenuation of noise, that is, the cancelling of a noise by the addition of further noise, are ...

It used to be that the only alternative to costly electric air conditioning was the double-effect gas-fired absorption chiller/heaters. Beginning in the 1980's, they were the "star" equipment promoted by gas companies throughout the nation. Although not a new technology at the time, neither was the gas engine. But now in the 19901s, gas engine-drive (GED) chillers have "hit" ...

In an era of heightened awareness of energy efficiency and the associated environmental impacts, many industries, worldwide, are exploring ``environmentally friendly`` technologies that provide equivalent or improved performance while reducing or eliminating harmful side effects. The refrigeration and air conditioning industry, due to its reliance on CFCs ...

The US Department of Energy (DOE) is working with partners from the gas heating and cooling industry to improve energy efficiency using advance absorption technologies, to eliminate chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs), to reduce global warming through more efficient combustion of natural gas, and to impact electric peak demand ...

The direct use of waste heat as heating element in a water chiller of the absorption type was studied. The chilled water is used as cooling element in the industrial process, producing the waste heat or for conditioning the workplace or further located places. The heat source is gaseous or liquid. The cooling capacity is in the range from 10 to 120 kW. ...

This tutorial is intended to provide a practical overview of applied acoustics and industrial noise control, including the fundamentals of applied acoustics, industrial noise control and case histories. The following topics will be covered: Sound radiation, sound transmission, outdoor sound propagation and indoor sound fields, sound ...

Energy Concepts has developed an absorption-augmented system as a cost-effective means of achieving more cooling capacity with a substantial reduction in energy consumption and greenhouse gas emissions for industrial refrigeration. It cuts fuel consumption by 30% by combining an internal combustion engine with a mechanical compression refrigeration system ...

Introduction: Within the last decades, computational models have developed rapidly and some of these models have proven useful in understanding how physiological, physicochemical and formulation factors affect oral drug absorption. Nowadays, complex computer-based absorption models are being used as standard tools in both academia and the pharmaceutical ...

We present experimental and theoretical investigations of interaction of a femtosecond laser (450 fs pulse at 1025nm) with dielectric materials (fused silica) for the single-shot laser regime. The aim is to analyze and understand the complex physical mechanisms of laser energy absorption yielding to damage and /or ablation. We outline the distinction between the ablation and ...

Carbon dioxide (CO[sub 2]) is widely recognized as a major greenhouse gas contributing to global warming. To mitigate the global warming problem, removal of CO[sub 2] from the industrial flue gases is necessary. Absorption of carbon dioxide by amines in a packed column was experimentally investigated. The amines employed in the present study were the ...

A dermal penetration rate (flux), predicted from physical properties of 132 chemicals, is suggested as an index of the dermal absorption potential of industrial chemicals. The prediction is designed for organic nonelectrolytes. Two reference values are recommended as criteria for skin notation: (1) dermal absorption potential, which ...

Polyester waste generated from a water jet loom in the weaving process is one of the typical industrial fiber wastes. The development of a recycling system for such fiber wastes has been strongly expected so far. In this study, the recyclability of polyester wastes as a sound absorption material was discussed. As a result, it was cleared that the sound ...

Lidar monitoring of the gaseous molecules in atmosphere can be used for concentration measurements of the toxic pollutants in air of the urban and industrial regions. Such a concentration study in the multi-components gaseous mixture by lidar technique is a complex problem in atmospheric pollution monitoring. The differential absorption lidar (DA-lidar) is ...

The US Department of Energy (DOE) is working with partners from the gas heating and cooling industry to improve energy efficiency using advance absorption technologies, to eliminate chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs), to reduc...

Measurements of the noise produced by a reference source were made in a number of industrial workshops to determine the effect of the environment on the measured sound levels. Conclusions are drawn concerning the effect of room geometry and the absorption...

Methods based on the application of radioactive indicators and reagents, dilution and activation analyses, radiochromatography, and the absorption and reflection of radiation are discussed. The possibilities of applying radioisotopes in microbiology; for technical and technoiogical processes, such as the measurement of density and concentration; and in process ...

The Institute of Reactor Components (IRB) at the Nuclear Research Center Juelich is investigating a project on energy alcohols, the industrial process engineering involved in the conversion of primary energy carriers (natural gas, coal and biomass) to ene...

The fundamentals for the rough calculation of gamma shielding are presented. The absorption law, the half-value layer and 1/10 value layer, and the shielding of gamma radiation by thick absorbers greatly expanding laterally are discussed. (J.S.R.)

Industrial hygiene air sampling of gases and vapors is frequently carried out by adsorption of contaminants on solid sorbents or absorption in a solution contained in a bubbler or impinger. Among the methods described in Volumes 1 through 4 of the NIOSH M...

Method 1620 was developed by the Industrial Technology Division (ITD) within the United States Environmental Protection Agency's (USEPA) Office of Water Regulations and Standards (OWRS) to provide improved precision and accuracy of analysis of pollutants ...

Contents: Thermal decomposition of magnesium iodate; Hydrolysis of magnesium iodide hexahydrate; Selective absorption of hydrogen iodide gas by magnesium oxide; The redox reaction of iodine with magnesium oxide in the presence of water; Total system studi...

Higher Performance Concentrator SEECOT * CT Inlet Air Cooling Operate two stage Absorption Chiller Steam 150 psig, 350 F * CT Steam Injection 450 psig, 460 F Inlet Air Cooling...

The production of hydrogen for fuel cell applications requires cost and energy efficient technologies. The Absorption Enhanced Reforming (AER), developed at ZSW with industrial partners, is aimed to simplify the process by using a high temperature in situ...

The Federal Ministry for Research and Technology has supported a development program in which a demonstration plant integrated in the Saar district heating grid will be built. This plant will help to gain operational experience o an industrial scale and t...

The treatment of radiant emission and absorption by combustion gases are discussed. Typical applications include: (1) rocket combustion chambers and exhausts, (2) turbojet engines and exhausts, and (3) industrial furnaces. Some mention is made of radiant ...

Methods for noise abatement are discussed. Noise nuisance, types of noise (continuous, fluctuating, intermittent, pulsed), and types of noise abatement (absorption, vibration damping, isolation) are defined. Rockwool panels, industrial ceiling panels, baf...

For a number of years research has been going on at the Central Institute for Industrial Research to develop acoustical lenses. We are now in a position to produce large aperture lenses that combine high resolution with low weight and absorption, and in a...

The report gives results of an evaluation of carbon absorption, chemical precipitation, reverse osmosis, and vapor compression distillation (VCD) as removal technologies for priority pollutants from wastewater streams of utility power plants. All but VCD ...

The breadboard version of the UVAH was successfully designed and fabricated. During this process, tests were performed on the components and assemblies in order to assure the validity of the design concepts. A performance model of the UVAH was developed o...

Hazards from environmental contaminants have become a necessary part of life in industrial countries. In the past few decades, a number of 'new' problems have arisen (termiticide-treated premises, reentry into pesticide-treated fields, acid rain, aldicarb...

Hazards from environmental contaminants have become a necessary part of life in industrial countries. In the past few decades, a number of 'new' problems have arisen (termiticide-treated premises, reentry into pesticide-treated fields, acid rain, aldicarb in ground water, dioxins...

Acetone has been used in the laboratory as a solvent for chemicals in skin sensitization studies. Its low cost, high solvent powers, and comparative lack of toxicity make it one of the most widely used industrial solvents. Absorption of acetone through th...

The spreadsheets allow the user to estimate costs for control of styrene emission using the following technologies: fluidized-bed preconcentrator, rotary concentrator, catalytic oxidation, condensation, MIAB system (absorption), Polyad (adsorption), therm...

Infrared absorption spectroscopy has proved to be an invaluable analytical tool for the textile chemist. It finds applications in evaluating the changes in molecular structure which occur as a result of different chemical and thermal treatments of textile...

An extensive review of the literature has been performed which included recent papers prepared by experts from industry, government and academia in the fields of ion exchange, reverse osmosis, ultrafiltration and many associated technologies. The capabili...

Ammonia has been used as a refrigerant for more than 100 years in absorption as well as compression systems, and a tremendous amount of practical experience exists. Today it is applied largely in heavy industrial plant with reciprocating or screw compress...

Little industrial hygiene data exist for the assessment of airborne levels of antineoplastic agents in the hospital work place. Persons handling these agents can be exposed by three potential routes: inhalation of aerosolized drug, transdermal absorption,...

Perfluoroalkyl compounds such as perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) are industrial chemicals that are environmentally persistent. Both PFOS and PFOA are found in biosolids, and the application of these contaminated biosolids to pastures has raised concerns about possi...

Perfluoroalkyl compounds such as perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) are industrial chemicals that are environmentally persistent. Both PFOS and PFOA are found in biosolids, and the application of these contaminated biosolids to pastures has raised concerns about possi...

Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) are industrial chemicals that are environmentally persistent. PFOS has recently been classified as a persistent organic pollutant under the Stockholm Convention. Both PFOS and PFOA can be found in biosolids, and the application of c...

The aim of the study is the numerical simulation and experimentation of the application of the zeolite-water couple, to a heat pump for industry or housing, using a high temperature heat source. The study includes modelling and description of the equipmen...

An extensive review of the literature has been performed which included recent papers prepared by experts from industry, government and academia in the fields of ion exchange, reverse osmosis, ultrafiltration and many associated technologies. The capabilities of adsorptive and io...

A field prototype instrument for continuous in-situ monitoring of sulfuric acid vapor in industrial smoke stacks has been developed. The method of detection is dual wavelength differential absorption in the infrared. Two tunable diode lasers are locked to two specific frequencies...

Absorption cycle refrigeration processes and systems are provided which are driven by the sensible waste heat available from industrial processes and other sources. Systems are disclosed which provide a chilled water output which can be used for comfort conditioning or the like which utilize heat from sensible waste heat sources at temperatures of less ...

Industrial uses of tellurium are limited, and reported cases of tellurium absorption of occupational origin are rare. Two such cases are reported here. Both showed typical signs and symptoms of intoxication; in particular, the stench of sour garlic was noted on breath and from excreta. An unusual feature was the bluish-black discoloration of the webs of ...

Ultra-low-temperature (15K) Ultra-small-angle x-ray scattering White laue single crystal-diffraction Wide-angle x-ray scattering X-ray absorption (XANES) X-ray absorption...

In this work it is presented an evaluation on the degree of contamination by emery dust in a working area where abrasives are manufactured, in a factory located in the industrial area of Toluca City by neutron activation analysis and atomic absorption spe...

The problem of gas treatment to remove hydrogen sulfide is currently one of the central problems of the chemical, petrochemical, pulp and paper, and other industries. The expression for determining the coefficient of acceleration of hydrogen sulfide absorption by a drop of sodium hydroxide solution through chemical reactions has been obtained.

Within Kubelka-Munk theory using the Lorenz relations, we have determined the correlation between the optical diffuse reflectance spectra R(?) of cellulose pulp in the visible range (380-760 nm) and ultraviolet absorption (? = 200-400 nm) of aqueous solutions containing residual lignins. The data obtained can be used to monitor and predict the results of digestion and bleach ...

From 4th international conference on atomic spectroscopy; Toronto, Canada (29 Oct 1973). Flameless atomic absorption has proven to be a rapid, accurate, and sensitive method to determine sub mg/liter quantities of chromium in effluent waste waters. The element is somewhat unique among those determinable by graphite furnace atomization because of its apparent freedom ...

Discusses a student exercise which requires the optimizing of the charring and atomization temperatures by producing a plot of absorbance versus temperature for each temperature parameter. Notes that although the graphite furnace atomic absorption spectroscopy technique has widespread industrial use, there are no published, structured experiments ...

The 10 MW Demonstration of the Gas Suspension Absorption (GSA) program is a government and industry co-funded technology development. The objective of the project is to demonstrate the performance of the GSA system in treating a 10 MW slipstream of flue g...

Biological waste-gas scrubbing plants are already successfully operating in industry. Bacterial suspensions from sewage plants are used as scrubbing fluids in these plants. The fundamentals of reaction engineering and process technology for this technique are considered in this paper. The degradation and the absorption of a pollutant was investigated ...

This article attempts to review several aspects of the regulation of benzene in the United States with an emphasis on percutaneous penetration (absorption of benzene into the skin). The author's purpose is not merely to highlight a regulatory crisis encountered by the American rubber industry, but to also provide a vivid example of how toxic ...

Moss accumulation of mercury via precipitation and not substrate absorption would serve to provide indication of mercury contamination in the atmosphere. Collections of the moss Cirriphyllum illecebrum were made in industrialized and nonindustrialized areas of Colbert County, Alabama. Flameless atomic absorption spectrophotometry was ...

The automotive industry needed a fast, reliable, under-the-hood method of determining nitrogen oxides in automobile exhaust. Several technologies were pursued concurrently. These sensing technologies were based on light absorption, electrochemical methods, and surface mass loading. The Y-12 plant was selected to study the methods based on light ...

Absorption heat pumps are a viable technology for waste heat recovery in industry. Yet, no U.S applications exist to date. In sharp contrast, large scale heat pumps are used in Japan, and a few recent installations have been reported in Europe. This paper presents a description of the existing technologies and applications. A comparative economic analysis ...

This book surveys the field of heterogeneous catalysis, and by highlighting a number real industrial processes, shows how to think about the problems involved. Special attention is paid to the physical forms of catalysts used and to the types of reactor employed. Includes a treatment of the band theory of solids. Contents, abridged: Absorption on solid ...

Operational circumstances of heat pump systems for industrial use were widely investigated to open their successful cases in practical applications to the public and to widely spread them throughout the industrial sector. As a summary of questionaire totaled 144 cases, 79 cases were motor-operated heat pumps, 37 cases absorption heat ...

Method 1620 was developed by the Industrial Technology Division (ITD) within the United States Environmental Protection Agency's (USEPA) Office of Water Regulations and Standards (OWRS) to provide improved precision and accuracy of analysis of pollutants in aqueous and solid matrices. The ITD is responsible for development and promulgation of nationwide standards ...

The objectives of this study were: (1) to perform a detailed thermodynamic cycle analysis of the basic and various modified absorption air conditioning systems under steady state and transient conditions, for a variety of absorbent-refrigerant combinations; (2) to study the effects of deviations of actual process from ideal processes due to temperature differences and pressure ...

In recent years, heavy metal uptake by biopolymer gels, such as Cal-Alginate or chitosan, has been studied by various methods. This is of interest because such materials might be an alternative to synthetical ion-exchange resins in the treatment of industrial waste waters. Most of the work done in this field consisted of studies of equilibrium absorption ...

The production of hydrogen for fuel cell applications requires cost and energy efficient technologies. The Absorption Enhanced Reforming (AER), developed at ZSW with industrial partners, is aimed to simplify the process by using a high temperature in situ CO2 absorption. The in situ CO2 removal results in shifting the steam reforming ...

Absorption refrigeration technology can be an economical and cost effective means of reducing energy cost and/or improving the efficiency and output of your process. We believe the potential benefits of absorption refrigeration technology have generally been overlooked by the process industry. This paper will address the application of ...

Because of the adverse effect of CO2 from fossil fuel combustion on the earth's ecosystems, the most cost-effective method for CO2 capture is an important area of research. The predominant process for CO2 capture currently employed by industry is chemical absorption in amine solutions. A dynamic model for the de-absorption process was ...

Photoacoustic spectroscopy (PAS) is based on the absorption of electromagnetic radiation by analyte molecules. The absorbed energy is measured by detecting pressure fluctuations in the form of sound waves or shock pulses. In contrast to conventional absorption spectroscopy (such as UV/Vis spectroscopy), PAS allows the determination of ...

In the Human Respiratory Tract Model (HRTM) described in ICRP Publication 66, time-dependent dissolution is described by three parameters: the fraction dissolved rapidly, fr, and the rapid and slow dissolution rates sr and ss. The effect of these parameters on the dose coefficient has been studied. A theoretical analysis was carried out to determine the sensitivity of the dose coefficient to ...

Measurements have been made of the self-absorption effects in monazite of alpha particles of the 232Th decay series. Samples of six size fractions of monazite were deposited on filters at different dust concentrations and then the gross alpha activity determined. Self-absorption effects were negligible in monazite particles up to 8 microns diameter ...

Measurements have been made of hte self-absorption effects in monazite of alpha particles of the {sup 232}Th decay series. Samples of six size fractions of monazite were deposited on filters at different dust concentrations and then the gross alpha activity determined. Self-absorption effects were negligible in monazite particles up to 8 {mu}m diameter ...

The absorption of mixtures of nitrogen oxides into aqueous solutions of NaOH was investigated in the range of partial pressures of 0.004 to 0.05 atm NO and 0.002 to 0.015 atm NO_2. Absorption experiments were conducted in a gas-liquid contractor that permitted independent variation of the gas and liquid mass transfer coefficients. The use of concentrated ...