... calculation for timeline for degradation of the ... ineffectiveness of the CO2 absorption units was ... conditioners, refrigerators and chillers; ingredient in ...

An absorption refrigeration system is disclosed having a primary condenser--generator unit powered by solar energy, or any other suitable relatively low temperature energy source. A secondary condenser--generator unit is operatively connected to the primary unit. The secondary ...

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 ...

A solar refrigeration unit using a water-ammonia solution is described. The variation of temperature and pressure parameters during continuous operation is examined, and the different events occurring in the presence or absence of illumination are explained.

A major reserve for savings in manufacturing is the use of secondary energy resources (SER) to produce refrigeration in absorption refrigeration units (ARU). One possible field of application of refrigeration is the development of the required vacuum in vacuum towers. This paper proposes a ...

Absorption chillers are heat-operate refrigeration without harmful environmental emissions (CFCs, HCFCS, and HFCS). The machine uses either steam or a gas-fired burner as the energy source and utilizes endothermic evaporation to provide refrigeration to an external process fluid, usually chilled water. In the ...

namely a lithium bromide/water absorption refrigeration system. A new ana- ... compared to other single-stage absorption units at the same cycle temperatures. ...

The hybrid refrigeration/sorption concept is a technically feasible approach to solar cooling which has not yet been systematically evaluated. Various system configurations are possible, each with advantages and disadvantages relative to the others, and with respect to solar cooling systems based on the individual absorption, Rankine, and desiccant ...

Air conditioning by absorption refrigeration that utilizes heat recovered from engines and from incineration of solid waste is a utility service that can be included in a MIUS. This report reviews the suitability of lithium bromide--water absorption refrigeration for such an application. Types and sizes ...

Techniques for converting solar energy into mechanical energy for use in small-to-large scale refrigeration systems are examined. The systems considered included a Rankine cycle, 106 kW system coupled to 58 sq m of flat plate collectors, photovoltaic panels with storage in the form of ice, a positive ventilation and ice bank cooling system, ammonia-water ...

The authors describe the design and operation of absorption lithium bromide refrigeration units (ALBRU). They give special attention to devices for controlling the flow rate of heat carrier to the generator, the exact output of the unit, the reduction of hydraulic losses, and the economy of operation and production ...

A lithium bromide absorption refrigerating machine, using a water solution of lithium bromide as the

... Accession Number : AD0276467. Title : MECHANICS OF HEAT PUMPS AND ABSORPTION REFRIGERATION: AN ANNOTATED BIBLIOGRAPHY. ...

This low temperature absorption-refrigeration system uses an absorber-evaporator. A conduit is connected between the upper portion of the absorber and the lower portion of the evaporator to conduct inert gas from the absorber to the evaporator. A second conduit connects the upper portion of the evaporator to the lower portion of the absorber and a blower in this conduit ...

Equations are derived for the cold productivity of a solar refrigerating unit which operates on the principle of regeneration of weak aqueous solutions of salts (LiCl and LiBr) on a solar-irradiated open surface. The equations describe the relation of the cold productivity of the unit as a whole to the productivities of the heat ...

A first-of-its-kind Waste Heat Ammonia Absorption Refrigeration Plant (WHAARP�) was installed by Planetec Utility Services Co., Inc. in partnership with Energy Concepts Co. at Ultramar Diamond Shamrock's 30,000 barrel per day refinery in Denver, Colorado. The refrigeration unit is designed to provide ...

The book presents the fundamental principles, systems, and practices of refrigeration. Emphasizing energy conservation, it offers applications of the refrigeration systems and equipment. Topics covered include: physical principles; the vapor compression refrigeration system: Pressure-enthalpy diagrams; thermodynamics of the vapor ...

This book is a fundamental text on refrigeration principles, equipment, and systems. Energy utilization and conservation are stressed. Extensive use is made of tables, charts, and worked-out examples. Contents, abridged: Physical principles. Heat transfer in refrigeration: evaporators. Absorption refrigeration. ...

Shows the application of basic physics of heat transfer in refrigeration units. Explains how temperature changes in refrigerant passes through the expanision valve, compressor, condensor, and evaporator as it carries heat to the outside air.

Recent activities in refrigeration technology in Japan are discussed. Stirling cycle refrigerators and magnetic refrigerators are discussed. The development of units for use on trains is discussed.

Absorption chillers are back - and for two very good reasons: they are environmentally sound and, in many cases, economically attractive. One factor fueling this resurgence is the outlook for natural gas, the energy source of most absorption systems. Deregulation has spurred exploration, and forecasts indicate an abundant supply and relatively low prices ...

It is shown that the inertia of a solar refrigerator depends on the heat capacity of the working solution contained by it. Various combinations of refrigerants are tested. 7 references.

This study includes an experimental investigation into the use of vapor absorption refrigeration (VAR) systems in road transport vehicles using the waste heat in the exhaust gases of the main propulsion unit as the energy source. This would provide an alternative to the conventional vapor compression refrigeration ...

A solar zeolite-water absorption refrigeration unit was studied. Thermodynamic expressions were derived to predict the system performance. The operating range and optimum design parameters for the zeolite system were determined. The main parameters governing performance were: solar collector type, ambient temperature, and absorber ...

A model has been developed for the design and optimization of a small bubble pump to be used in a single pressure absorption refrigeration cycle to lift the working fluid mixture against gravity and overcome flow friction. This analytical model is developed from two-phase flow fundamentals and incorporates the design parameters of the bubble pump. ...

A dilution cycle control system for an absorption refrigeration system is disclosed. The control system includes a time delay relay for sensing shutdown of the absorption refrigeration system and for generating a control signal only after expiration of a preselected time period measured from the sensed shutdown of ...

A dilution cycle control system for an absorption refrigeration system is disclosed. The control system includes a time delay relay for sensing shutdown of the absorption refrigeration system and for generating a control signal only after expiration of a preselected time period measured from the sensed shutdown of ...

... Title : Product Improvement Test of Assemblage, Refrigeration Unit, 9000 BTU/HR, Gasoline-Engine-Driven, Mounted on M349A4 Refrigerator ...

This book supplies the basics of design, from selecting the optimum system and equipment to preparing the drawings and specifications. It discusses the four phases of preparing a project: gathering information, developing alternatives, evaluating alternatives, and selling the best solution. In addition, the author breaks down the responsibilities of the engineer design documents, computer aided ...

Previous papers have dealt with the comparisons of absorption and centrifugal chillers and indicated the benefits of using absorption machines. Also, the ideal thermodynamic performances and limitations of absorption cycles have been derived. Nevertheless, the need to update this recent work is necessary for several reasons: utility ...

This patent describes the method of installing a refrigeration unit in a tubular pile on an offshore structure which comprises: connecting a refrigeration unit to a drill string; lowering the refrigeration unit into the tubular pile with an oil well work-over rig: grouting ...

The determination of properties of zeolite/refrigerant combinations of solar refrigeration systems are reviewed in this final report. The US DOE has funded several studies aimed at identifying potential rerigerant/absorption pairs for solar cooling applications. In the case of this report, the absorbent was already chosen (natural ...

The determination of properties of zeolite/refrigerant combinations of solar refrigeration systems are reviewed in this final report. The US DOE has funded several studies aimed at identifying potential rerigerant/absorption pairs for solar cooling applications. In the case of this report, the absorbent was already chosen (natural ...

The study of solar air conditioning in a hot arid climate was carried out. It consisted of four different approaches: the use of an absorption system and in this case use of a Li-Br unit. A typical set of results has been included: a Rankine engine has been described and compared with the Li-Br cycle and an intermitted solar-powered ...

In the design of solar collector/regenerators for use in open cycle absorption refrigeration (OCAR) units, the problem of predicting evaporation mtes and solution temperatures is of paramount importance in determining overall cycle performance. The govern...

The present invention is directed to a self-contained refrigerant recovery and purification system capable of removing gaseous refrigerants from a disabled refrigeration unit for cleaning acid and impurities from the refrigerant so that the refrigerant can be reused or ...

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...

The determination of properties of zeolite/refrigerant combinations of solar refrigeration systems are reviewed in this final report. The US DOE has funded several studies aimed at identifying potential rerigerant/absorption pairs for solar cooling applic...

The bibliography contains citations of selected patents concerning the design and application of absorption refrigeration systems. Citations cover refrigeration, cooling/heating, and chilling devices. Combination heat pump/absorption and mechanical/absorption refrigeration ...

Because the absorption refrigeration system uses the Lithium bromide- water solution as refrigerant, it is profitable for the environment that human beings are living since the values of ODP and GWP of the refrigerant almost are zero. However, the low COP of the absorption machine was limited ...

Energy consumption for the Echo Station is analyzed. The HVAC equipment including vapor compression refrigeration units, absorption chillers, and heating units such as boilers and heat pumps is shown to be the largest consumer of electrical energy. The energy consumption for the buildings at the station is itemized ...

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 of raw materials, transportation, adequate geothermal source, labor, and other ...

The refrigerated food/medical sample storage compartment as a kit to the space shuttle orbiter is examined. To maintain the -10 F in the freezer kit, an active refrigeration unit is required, and an air cooled Stirling Cycle refrigerator was selected. The...

...on or after November 23, 1992, and is equipped with any refrigeration unit using� (1) Ammonia to refrigerate any space with...must satisfy § 96.30-90 if it is equipped with any refrigeration unit using� (1) Ammonia to refrigerate any space...

...on or after November 23, 1992, and is equipped with any refrigeration unit using� (1) Ammonia to refrigerate any space...must satisfy § 195.30-90 if it is equipped with any refrigeration unit using� (1) Ammonia to refrigerate any...

This invention relates to a process for purifying and liquefying a natural gas stream comprising the steps of passing said stream through absorption units to remove impurities, compressing said stream, liquefying said stream by heat exchange with a low temperature nitrogen refrigeration cycle, stripping the nitrogen from said liquefied ...

A comprehensive analysis of the Vuilleumier refrigerator was con- .... The Vuilleumier (VM) refrigeration concept was patented in the United States in 1918 . ...

The present invention provides an energy conservation and utilization arrangement for use with an expansible refrigerant air conditioner including a refrigerant circuit with a compressor , refrigerant condensor and expansion means to selectively heat a reservoir of fluid, for example, the water used in a swimming pool where selector ...

This report gives a short introduction to the principles of absorption refrigeration plants. A measuring program for a large lithium bromide-water absorption refrigeration plant has been conducted during the summer 1987 at Herlev Hospital. The plant is dr...

Explains how to determine causes of several common refrigeration troubles, such as 'unit will not run,' 'unit runs continuously,' 'improper refrigeration of food, but unit freezes ice cubes.'.

Requirements for cooling are related to the need to be able to maintain foodstuffs in good condition with the aid of refrigeration and the desirability to provide a comfortable indoor environment by air conditioning. The representation of the desired conditions in a room by a point on a psychrometric chart is considered together with processes of sensible cooling, cooling and ...

Because the severe conditions imposed by ambient temperatures on solar refrigeration equipment in the tropics limit the choice of an absorption system, the thermokinetic characteristics of a calcium chloride/ammonia absorption cycle were examined. The refrigeration equipment employed works in two stages: ...

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. ...

All the available experimental evidence suggests that the optimum organic absorbent/refrigerant combination would be a methane derivative with a single hydrogen atom with chlorine and fluorine atoms in the other sites, as refrigerant. This would be hydrogen bonded to an absorbent molecule containing the group =NC-O, with the substituent groups being such ...

All the available experimental evidence suggests that the optimum ''organic'' absorbent/refrigerant combination would be a methane derivative with a single hydrogen atom with chlorine and fluorine atoms in the other sites, as refrigerant. This would be hydrogen bonded to an absorbent molecule containing the group =NC/sup ...

Planetec Utility Services Co. Inc. and Energy Concepts Co. (ECC), with the help of the US Department of Energy (DOE), developed and commissioned a unique waste-heat powered LPG recovery plant in August 1997 at the 30,000 b/d Denver refinery, operated by Ultramar Diamond Shamrock (UDS). This new environmentally friendly technology reduces flare emissions and the loss of salable liquid-petroleum ...

For removing undesired gaseous components, e.g., SO/sub 2/ from hot combustion gases (from carbonaceous fuels) by scrubbing with a regenerable absorbent, the scrubbing is conducted with a liquid physical absorbent, E.G., dimethylformamide, at a temperature less than 0/sup 0/ C. The cooling requirements of the scrubbing process are supplied by means of an absorption-type ...

A critical review of US and foreign literature on the use of a mixture of refrigerants rather than a single one in a refrigeration unit indicates that energy can be conserved in properly arranged systems. An independent analytical study performed under th...

Solar-Powered Refrigeration can help people in the developing countries to reduce a tremendous loss of foodstuffs because of lacking preservation facilities. Also for the preservation of medical supplies, especially vaccine, refrigeration is urgently need...

Arizona State University has built a test facility to evaluate the steady state and transient performance characteristics of residential sized refrigeration units for solar applications. This paper reports significant findings related to the cold start-up and the on-off cycling of a commercial three-ton lithium bromide/water absorption ...

An air-cooled, vertical tube absorber for an absorption refrigeration system is disclosed. Strong absorbent solution is supplied to the top of the absorber and refrigerant vapor is supplied to the bottom of the absorber to create a direct counterflow of refrigerant vapor and absorbent solution in the absorber. The ...

The method described is for the removal of oils accumulating in a liquid refrigerant and for returning the refrigerant system. This method is particularly applicable to the process of recovering natural gasoline from natural gas by refrigeration and absorption. A small stream of the liquid ...

The absorption refrigerator can be considered a thermal transformer, that is, a device that is analogous to the electric transformer. The analogy is based on the correspondence between the extensive quantities, entropy and electric charge and the intensive variables, temperature and electric potential. (Contains 1 footnote and 6 figures.)

The thermodynamic properties of the R22- N,N-dimethylformamide system and the R22- isobuthylacetate system were measured in order to decide whether or not these mixtures were suited for absorption refrigeration. The specific gravity, the viscosity, the su...

This report describes the modifications and repairs made to the 200 ton absorption refrigeration pilot plant since April 1992, when Clarkson University assumed responsibility for it. Current operating problems and the performance of the plant, achieved to...

In connection with reuse of existing CFC refrigerants, it is necessary to know the possibilities for catching and regenerating the drained of refrigerant by means of available equipment. This mainly involves units that can drain off the refrigerant from a...

A critical review of US and foreign literature on the use of a mixture of refrigerants rather than a single one in a refrigeration unit indicates that energy can be conserved in properly arranged systems. An independent analytical study performed under the current contract using 50 percent mixture of R-12 and R-114 in a two-evaporator ...

A seven-effect absorption refrigeration cycle is disclosed utilizing three absorption circuits. In addition, a heat exchanger is used for heating the generator of the low absorption circuit with heat rejected from the condenser and absorber of the medium absorption circuit. A heat exchanger is ...

A seven-effect absorption refrigeration cycle is disclosed utilizing three absorption circuits. In addition, a heat exchanger is used for heating the generator of the low absorption circuit with heat rejected from the condenser and absorber of the medium absorption circuit. A heat exchanger is ...

...breathing apparatus described in § 108.497(a) to use as protection against gas leaking from a refrigeration unit if it is equipped with any refrigeration unit using� (1) Ammonia to refrigerate any space with a volume of more than 20...

This paper presents a brief review of the available latent heat storage systems for solar energy utilization. A new concept of latent heat storage of solar energy via the refrigerant-absorbent mass storage in absorption cycle heat pump systems used for solar space heating/cooling has been proposed and assessed thermodynamically. A computer modeling and ...

An absorption refrigeration system has an intermediate temperature desorber-resorber pair. A valve between the desorber-resorber pair is modulated to control the capacity for load matching.

An absorption refrigeration system has an intermediate temperature desorber-resorber pair. A valve between the desorber-resorber pair is modulated to control the capacity for load matching.

A critical review of U.S. and foreign literature on the use of a mixture of refrigerants rather than a single one in a refrigeration unit indicates that energy can be conserved in properly arranged systems. An independent analytical study performed under the current contract using a 50% mixture of R-12 and R-114 in a two-evaporator ...

A solar-powered absorption refrigeration apparatus is described comprised of: (a) a pressure vessel of approximately circular cross-section for containment of a liquid absorbent solution containing absorbed refrigerant; (b) a solar-radiation reflector for concentrating solar radiation onto the pressure vessel; (c) a condenser for ...

An absorption refrigeration and/or heating system is described, comprising: a desorber which absorbs heat and a high relative pressure vaporizes a first volume of refrigerant from a second volume of strong solution leaving a third volume of weak solution; a condenser which releases and condenses the vapor ...

Invention and design of the gas absorption refrigerator of Servel, Inc. "Servel, Inc., the sole manufacturer of gas absorption refrigerators since 1926, introduced the Wonderbar, a compact portable refrigerator designed by industrial designer and Servel VP of Product Planning, Donald Dailey. ...

Up to 90% of the escaping hydrocarbon vapors can be safely and efficiently recovered by means of a new system whose functions are based on the principles of refrigeration and low pressure. These vapors, which are quite valuable when recovered, are generated during the loading of tank cars, tank trucks, and by natural respiration of the storage tanks. Such a system of gasoline ...

Solar icemaking is a logical technology for developing countries. If solar radiation is harnessed for cooling purposes, the peak supply of useful energy will generally coincide with peak demand for refrigeration, while the use of the solar cooling effect to produce ice will provide energy storage during low radiation periods. This report provides a brief history of ...

During the compatibility study of 10 pure refrigerants with 24 motor materials, it was observed that the greatest damage to the insulation system was caused by absorption of refrigerant followed by rapid desorption. The observed effects were blisters, cracking, internal bubbles and delamination. Measured results includes decreased bond ...

The development and proof testing of advanced absorption refrigeration cycle concepts is reported. The purpose is to develop a gas fired absorption heat pump for residential and small commercial applications that will produce a coefficient of performance of at least 1.6 Btu heating and .7 Btu of cooling per Btu of gas input. The goals ...

... refrigerant leakage, van road performance, rain, low temperature, radio interference suppression, salt fog, sand and dust, defrost and maintenance ...

Apr 21, 2011 ... Refrigerators/ Freezers/ Incubators. Hardware Description. The EuroMir Freezer is a small refrigerator / freezer unit built by the European ...

Refrigeration systems, including thermodynamic cycles, equipment, energy-saving techniques, and good maintenance practices, are discussed. Figures, tables, and unit self-tests for the reader are included.

This self-study course is designed to familiarize Marine enlisted personnel with the principles of the refrigeration process. The course contains five study units. Each study unit begins with a general objective, which is a statement of what the student should learn from the unit. The study ...

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" ...

Refrigerating machine oil to be filled in a sealed motorcompressor unit constituting a refrigerating cycle system including an electric refrigerator, an electric cold-storage box, a small-scaled electric refrigerating show-case, a small-scaled electric cold-storage show-case and the like, is ...

The present invention is intended to remove foreign matter such as worn powder in a refrigerating cycle and enhance the reliability in a refrigerating cycle using, in particular, HFC refrigerant. In the invention, accordingly, a coil shaped connection piping is provided in at least front portion or rear portion of a throttling ...

Research in cryogenically cooled refrigerators is discussed. Low-power Stirling cryocoolers; spacecraft-borne long-life units; heat exchangers; performance tests; split-stirling, linear-resonant, cryogenic refrigerators; and computer models are among the ...

Research in cryogenically cooled refrigerators is discussed. Low-power Stirling cryocoolers; spacecraft-borne long-life units; heat exchangers; performance tests split-stirling, linear-resonant, cryogenic refrigerators; and computer models are among the topics discussed.

Research in cryogenically cooled refrigerators is discussed. Low-power Stirling cryocoolers; spacecraft-borne long-life units; heat exchangers; performance tests; split-stirling, linear-resonant, cryogenic refrigerators; and computer models are among the topics discussed.

Contents: A Compact Rotary Compressor for Home Refrigerators; Technical Trends in Refrigeration and Air Conditioning; An Inverter-Controlled Refrigeration Unit; A Numerical Computation System for Determining Airflow Distribution in Air-Conditioned Rooms; ...

A self-contained, recyclable laboratory (sup 3)He refrigerator has been developed. The refrigerator is very compact, portable and is designed to be safe and reliable. The unit can easily be installed on the cold plate of a superfluid (sup 4)He cryostat. O...

A self contained, recyclable, laboratory He-3 refrigerator is considered. The refrigerator is very compact, portable, and is designed to be safe and reliable. The unit can easily be installed in the cold plate of a superfluid He-4 cryostat. Once bolted to...

Several design options for improving the energy efficiency of conventionally-designed, domestic refrigerator freezers (RFs) were incorporated into two 1990 production RF cabinets and refrigeration systems. The baseline performance of the original units an...

General refrigerated storage capacity in the United States totaled 2.42 billion gross cubic feed on October 1, 1995, an increase of 3 percent since the previous survey was conducted two years ago. This was the 38th biennial survey of refrigerated warehous...

...calibrated-box method shall be used, as set forth in ARI Standard 1110, Standard for Mechanical Refrigeration Units, of the Air-Conditioning and Refrigeration Institute. (b) The appliance shall be rated according to the class, or...

The objectives of the research reported is to develop and analyze new concepts for absorption cycles to improve the performance or reduce the cost of a 3-ton absorption chiller that can be used with solar collected heat. New refrigerant-absorbent pairs are investigated, as are additives to currently used ...

A new absorption cycle, using heat as the energy source, was proposed to produce refrigeration. This proposed cycle, referred to as the single-effect regenerative absorption cycle or cycle 1R, has a performance much superior to the well-known basic absorp...

Sessions included: HFC blown polyurethanes, carbon dioxide blown foam and extruded polystyrenes, plastic foam insulations, evacuated panel insulation, refrigeration and air conditioning, absorption and adsorption and stirling cycle refrigeration, innovative cooling technologies, and natural refrigerants. Selected ...

Computer programs that determine the basic characteristics of heat pumps for different refrigerants and the interference between refrigerant and oil, and especially reciprocating compressors for heat pumps, are presented. The influence of electric-motor cooling, lubrication, different refrigerants, speed control and partial-load ...

A heat pump refrigeration circuit utilizes an indoor heat exchange unit, an outdoor heat exchange unit and a refrigerant-liquid heat exchange unit all connected serially to accomplish space heating, space cooling, liquid heating or simultaneous space cooling and liquid heating. A ...

Absorption refrigeration systems are one of the oldest systems available. The fundamentals of absorption refrigeration were formulated about 1777, and the first successful absorption machine was developed in 1850. The first U.S. patent for an absorption ...

The characters of the couple CaCl/sub 2/-NH/sub 3/ are examined to employ this binary compound for solar refrigeration; the severe conditions imposed by the daily and nocturnal temperatures in tropical zones limit the choice of absorption systems. The solar refrigerator consists of a generator, a condenser and an evaporator. 9 refs.

The Intermittent Solar Ammonia Absorption Cycle (ISAAC) refrigerator is a solar thermal technology which provides low cost, efficient, reliable ice-making to areas without ready access to electricity. An ISAAC refrigeration system consists of a compound p...

The gas-fired domestic refrigerator is a successful gas-fired appliance which fills a market niche where either low noise or independence from electric power is important. Such applications include hotel room refrigerators, recreational vehicles and remote area refrigeration. Current diffusion-absorption machines ...

Work done in attempting to qualify absorption refrigeration systems based on refrigerants with intermediate latent heats of vaporization is summarized. In practice, these comprise methanol, ammonia, and methylamine. A wide variety of organic substances, s...

A study is made of an absorption solar refrigerator based on a liquid. Particular attention is given to a model solar refrigerator having periodic operation and using ammonia as a cooling agent and water as an absorber. It is found that the apparatus' thermal inertia is a function of heat capacity, generator-absorber mass, and the ...

An air conditioning system making use of waste heat is described comprising a compound absorption refrigeration machine and absorption type heat pump for both cooling and heating. The refrigeration machine and the heat pump are connected in parallel to the load to obtain hot water for utility of air heating, and ...

An emerging DOE-sponsored technology has been deployed. The technology recovers light ends from a catalytic reformer plant using waste heat powered ammonia absorption refrigeration. It is deployed at the 17,000 bpd Bloomfield, New Mexico refinery of Western Refining Company. The technology recovers approximately 50,000 barrels per year of liquefied ...

A dual circuit absorption refrigeration system comprising a high temperature single-effect refrigeration loop and a lower temperature double-effect refrigeration loop separate from one another and provided with a double-condenser coupling therebetween. The high temperature condenser of the single-effect ...

In combination with the ground vehicle a powered by a waste heat generating electric motor 16, a cooling system 10 including a generator 17 for driving off refrigerant vapor from a strong refrigerant-absorbant solution, including a solar collector 12, an air-cooled condenser 30 connected with the generator for converting the ...

This report presents an analysis of the performance of the energy delivery subsystem composed of a steam generator and superheater, a steam engine, and steam condensing equipment. When combined, the thermodynamic processes involved in this subsystem form a basic Rankine power cycle. Water is the cycle working fluid. The prime mover is a Skinner RV-1 Unaflow steam engine. The steam condensing ...

We look at the operation of compression/absorption cycle machines in order to produce a high-temperature heat pump. The useful effect of the machine lies in the absorber during absorption of vapour with a high refrigerant content by the solution with a lo...

A Vapor Absorption Refrigeration (VAR) System is similar to a Vapor Compression Refrigeration (VCR) System. In both systems the required refrigeration is provided by refrigerants vaporizing in the evaporator. However, in the VAR System, a physico-chemical process replaces the mechanical process ...

The seawater desalination pilot plant at Yanbu in Saudi Arabia is a unique experiment in which an indirect bulk freeze desalination process is integrated with a stand-alone solar cogeneration power plant. Thermal energy is stored in molten salt and is converted into shaft power required for primary refrigeration by a conventional steam engine. An ...

G: REFRIGERATION AND HEAT PUMP SYSTEMS BASED ON HE 11. VORTEX CONTROL. 57. APP. H: SPACE CRYOGENICS COMPONENTS BASED ON .... L, is the square root of the Darcy permeability. Insertion of ...... the absorption of the refrigeration load. ...

A compact hydride absorption refrigeration system with few moving parts for 10 Kelvin operation is disclosed and comprises liquid hydrogen producing means in combination with means for solidifying and subliming the liquid hydrogen produced. The liquid hyd...

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...