Abstract: The HVAC system of a vehicle passenger compartment with air flow alteration, which pertains to the system of air conditioning with several working modes for air conditioning of the passenger compartment, i.e.

Abstract: A method of defrosting a transcritical vapor compression system having a compressor for compressing a refrigerant, a first heat exchanger for cooling the refrigerant during a cooling mode, an expansion valve for decreasing the pressure of the refrigerant, and a second heat exchanger for cooling a space during the cooling mode. The method includes attaining a superheated refrigerant condition in a defrost mode of the transcritical vapor compression system and defrosting the second heat exchanger in the defrost mode by directing the superheated refrigerant to the second heat exchanger without bypassing the first heat exchanger.

Abstract: The present disclosure is directed towards a method of controlling opening of a valve (10) in an HVAC system (100). The method includes controlling the opening of the valve (10) according to a default control mode in dependence of a default sensor signal. The method further includes determining, while controlling the opening of the valve (10) according to the default control mode, whether the default sensor signal is faulty and switching, in case of the default sensor signal being faulty, to controlling the opening of the valve (10) according to a fallback control mode, with the opening of the valve (10) being controlled independently of the faulty sensor signal in the fallback control mode. The present invention is further directed towards a corresponding control device opening of a valve (10) in an HVAC system as well as a corresponding computer program product.

Abstract: The invention relates to a refrigerant circuit of a hybrid or electric vehicle with a refrigerant distributor and to a refrigerant distributor (10) with an inlet channel (12), which extends substantially linearly along an inlet axis (E) and has a channel cross-section (QE), and at least two outlet channels (14, 16) branching off from the inlet channel (12), which each extend substantially linearly along an outlet axis (A1, A2) and have a channel cross-section (QA1, QA2), wherein the outlet axis (A1) of a first outlet channel (14) and the outlet axis (A2) of a second outlet channel (16) intersect in a point of intersection (S), and wherein the refrigerant distributor (10) has at least one of the following features: a) the channel cross-section (QA1) of the first outlet channel (14) differs from the channel cross-section (QA2) of the second outlet channel (16), b) the point of intersection (S) of the outlet axes (A1, A2) is arranged laterally offset from the inlet axis (E).

Abstract: The hierarchy condensation third-type absorption heat pump provided by the invention belongs to the absorption heat pump technology field. A solution cycle is formed by a first generator, an absorption-generator, a first absorber, a first solution pump, a second solution pump, a first solution heat exchanger and a steam distributing chamber. A solution cycle is formed by a second generator, a second absorber, a third solution pump and a second solution heat exchanger. The refrigerant vapor of the first generator is provided for the first condenser. The refrigerant vapor of the second generator is provided for the second condenser. The refrigerant vapor of the steam distributing chamber is provided for the second absorber. The refrigerant liquid of the first condenser enters evaporator via the throttle valve. The refrigerant liquid of the second condenser enters evaporator via the refrigerant liquid pump. The refrigerant vapor of evaporator is provided for the absorption-generator and the first absorber.

Abstract: A device for heating and cooling, respectively, includes a heat pump (1), a first heat exchanger (2) arranged at a first side of the heat pump (1), which first heat exchanger (2) is thermally connected to a first heat carrier being circulated in a first loop (10), and a second heat exchanger (3) arranged at a second side of the heat pump (1), which second heat exchanger (3) is arranged to transfer thermal energy to or from a second heat carrier which is circulated in a second loop (20). The first (10) and the second (20) loops are interconnected by a conduit (4) so that the first loop (10), the second loop (20) and the conduit (4) together form a connected system, in which connected system one and the same heat carrier is arranged.

Abstract: A set of devices that use pressure envelope (atmosphere) to leverage creating small volume changes with small amount of work to create larger heat energy temperature differences. Piston and turbine based devices using the same principles of exchanging heat for work allow production of temperature change proportional to volume times air pressure, while consuming less power, only the power required to deflect the piston from its point of equilibrium (volume times pressure increase or decrease) or the equivalent effect with a turbine. The devices can be configured for refrigeration and heating. All of the devices allow for improved efficiency, less sensitive to temperature differences between interior and exterior, costs less to manufacture, and consume less than half the energy a Freon/compressor/condenser/evaporator based air conditioner/heat pump.

Abstract: Monolithically integrated heat pump. The heat pump includes as adsorbent/absorbent condenser forming a hot terminal integrated with a phase change heat exchanger forming a cold terminal. The adsorbent/absorbent condenser and the phase change heat exchanger are integrated into a single pressure vessel.

Abstract: A heat pump including an evaporator and an adsorber is provided. The adsorber is regenerated by applying heat from a chemical thermal storage reactor, a heat accumulator or an external heat source, at a temperature higher than or equal to a temperature to regenerate the adsorber.

Abstract: One examples provides an automotive air-conditioning system provided with: a thermal unit having a condenser and an evaporator configured to be traversed by a refrigerant fluid and a hydraulic circuit, which is configured to be traversed by a carrier fluid and has a first portion provided with a first heat exchanger, a second portion provided with a second heat exchanger, a hot portion extending through the condenser, and a cold portion extending through the evaporator, a valve device being configured to connect selectively either the hot portion or the cold portion to the first portion and the second portion.

Abstract: In certain embodiments an all vapor driven absorption heat pump is provided comprising a first heat pump generator comprising a falling film heat exchanger and configured to receive a high temperature vapor and a dilute working medium and to evaporate heat transport material from the dilute working medium; optionally, a second heat pump generator comprising a second falling film heat exchanger configured to receive concentrated working medium and output vapor produced in the first heat pump and to further evaporate the working medium and provide a mid-temperature vapor output and a concentrated working medium; and a heat pump absorber configured to receive a low temperature vapor and the concentrated working medium from the first heat pump generator when the second heat pump generator is absent and to receive said concentrated working medium from the second heat pump generator when the second heat pump generator is present.

Abstract: Embodiments of a heat transfer apparatus, and related methods, involve at least one boundary wall defining a first flow path through a neck portion, a first heat source external to and in thermal communication with the boundary wall, and a working fluid (e.g., a first fluid component with a second fluid component entrained therein). The neck portion may be shaped such that at least a portion of the second fluid component impinges upon at least a portion of the boundary wall as the working fluid flows therethrough, whereby heat is transferred from the first heat source to the working fluid through the boundary wall.

Abstract: A drying apparatus is disclosed that includes a drum and an open-loop airflow pathway originating at an ambient air inlet, passing through the drum, and terminating at an exhaust outlet. A passive heat exchanger is included for passively transferring heat from air flowing from the drum toward the exhaust outlet to air flowing from the ambient air inlet toward the drum. A heat pump is also included for actively transferring heat from air flowing from the passive heat exchanger toward the exhaust outlet to air flowing from the passive heat exchanger toward the drum. A heating element is also included for further heating air flowing from the heat pump toward the drum.

Abstract: The invention relates to a climate-control device (501) for a vehicle, having a thermal energy store (1105), wherein a gas recycler (1301) is formed for conditioning a gas mixture which is situated in a passenger compartment (1103) of the vehicle (1101). Furthermore, the invention relates to a method for regulating a climate in a passenger compartment (1103) of a vehicle (1101).

Abstract: An HVAC system for heating and cooling a passenger compartment of a vehicle includes a first heat exchanger that transfers heat between a primary loop and a secondary loop. The primary loop is a reversible loop and uses high pressure refrigerant. A compressor pressurizes the refrigerant. A second heat exchanger selectively transfers heat energy to and from the passenger compartment. The secondary loop is a low pressure liquid coolant loop that passes through the first heat exchanger. A pump moves fluid through the secondary loop. A third heat exchanger transfers heat to and from an external medium from the fluid passing through the secondary loop. A secondary heat source adds heat to the secondary loop during a heating mode. A bypass means selectively bypasses the secondary heat source during a cooling mode.

Abstract: An improved air-source heat pump for residential and commercial use, employing two closed refrigerant systems having different refrigerants in cascade relationship to each other to address efficiency and space concerns, with the first closed refrigerant system partitionable into a first sub-system and a second sub-system, with the first sub-system working in conjunction with the second closed refrigerant system in heating mode and the second sub-system working independently in cooling mode.

Abstract: An installation for the production of cold and/or heat has a driving and a receiving machine. The driving machine has means for circulating a working fluid GM, an evaporator EM, at least one transfer cylinder CTM that contains a transfer liquid LT in a lower part and the working fluid GM liquid and/or vapor form above the transfer liquid, a condenser CM, at least one device BSM for separating the liquid and vapor phases of the working fluid GM, and a device for compressing the working fluid GM to the liquid state.

Abstract: A space efficient system especially suited for use as an entirely self-contained stand-alone unit usable in any of multiple contexts where heating or cooling of a defined-volume or enclosure is required. Hot or cold sides of the thermoelectric assemblies face toward one another into a central airflow that enters and exits a housing through a top or bottom of the housing that faces into the enclosure, and the opposite sides of the thermoelectric modules face into channels on opposite sides of the central airflow. The channels can be connected to intake and exhaust air through a common end of the housing, or be separated to individually intake and exhaust air at opposing ends of the housing. Fastener-free mounting of components between insulation shells that cooperate with the thermoelectric assemblies to define the channel boundaries results in tool-free configurability of components for servicing, maintaining, reconfiguring, scaling or customizing of the system.

Abstract: A heat pump heating system (1A) includes: a refrigerant circuit (3) including a compressor (21), a radiator (22), and an expansion member (25A), and an evaporator (26); a circulation path (5) for circulating a liquid through the radiator (22) to produce a heated liquid; and a heater (4) for dissipating heat of the heated liquid. The refrigerant circuit (3) is provided with an internal heat exchanger (23A) for transferring heat from a high pressure refrigerant that has released heat in the radiator (22) to a low pressure refrigerant. The liquid flowing through the circulation path (5) is cooled in a liquid cooling heat exchanger (24) by means of the high pressure refrigerant flowing out of the internal heat exchanger (23A), before the liquid flows into the radiator (22).

Abstract: A heat pump refrigerant system has a compressor for delivering a compressed refrigerant to a reversing refrigerant flow control device. The reversing refrigerant flow control device selectively delivers refrigerant to an outdoor heat exchanger in a cooling mode of operation, and to an indoor heat exchanger in a heating mode of operation. Refrigerant from an outdoor heat exchanger passes through an expansion device to an indoor heat exchanger in a cooling mode, and from the indoor heat exchanger through an expansion device and to the outdoor heat exchanger in a heating mode. A reheat circuit includes a reheat heat exchanger positioned to be in the path of air delivered over the indoor heat exchanger and into an environment to be conditioned. The reheat heat exchanger and outdoor heat exchanger both are provided by microchannel heat exchangers.

Abstract: Heat pumps move heat from a source to a higher temperature heat sink. This invention enables spontaneous source-to-sink heat transfer. Spontaneous heat transfer is accomplished by conducting heat from the source through rotating disks to a portion of the generally warmer sink flow that is cooled to a temperature below that of the source by the Bernoulli effect. The nozzled flow required for Bernoulli cooling is provided by the corotating disk pairs. The distance between the opposing surfaces of the disk pair decreases with distance from the rotation axis, forming a nozzle. The heat-sink flow through the nozzle is maintained by centrifugal force caused by the circular motion of the gas near the disk surfaces. Embodiments of the invention differ in the paths followed by the source and sink fluid flows, by the number of disk pairs and by the state (gas or liquid.) of the heat source.

Abstract: Heat pumps move heat from a source to a warmer sink, with Bernoulli heat pumps accomplishing this movement by reducing the temperature in a portion of the generally-warmer heat-sink flow. Heat flows spontaneously from the generally cooler heat-source flow into the locally cold portion of the heat-sink flow, which is the neck of a Venturi. The temperature reduction results from the Bernoulli conversion of random gas-particle motion (temperature and pressure) into directed motion (flow). This invention is a Bernoulli heat pump in which the heat transfer into the Venturi neck exploits unusual thermodynamic transport properties of rare-gases. Rare gases, especially mixtures of them, possess unusually small Prandtl numbers and thereby facilitate the diffusion of random particle motion (heat) relative to the diffusion of directed particle motion (viscosity), viscous friction being responsible for most of the power consumed by a Bernoulli heat pump.

Abstract: A regenerator having a thermal diffusivity matrix is presented. The thermal diffusivity matrix includes magneto-caloric material having multiple miniature protrusions intimately packed to form a gap between the protrusions. A fluid path is provided within the gap to facilitate flow of a heat exchange fluid and further provide efficient thermal exchange between the heat exchange fluid and magneto-caloric material. A first layer is disposed on each of the miniature protrusion to physically isolate the heat exchange fluid and magneto-caloric material, wherein the first layer further includes a soft magnetic material configured to simultaneously enhance a permeability and a thermal efficiency of the thermal diffusivity matrix.

Abstract: In a chemical heat pump using a hybrid substance (2) and a volatile liquid, layers (3) of a matrix material are provided for binding or containing the substance and/or the condensed volatile liquid. These matrix layers are placed sot that transport of heat to or from an external medium at at least the free surfaces of the matrix layers is obtained and preferably also at their opposite surfaces. Therefor, pipe conduits (9) are provided, in which the external medium flows and which are placed at the surfaces of the matrix layers, such as both beneath supporting plates (4) and directly on top of the matrix layers. By using pipe conduits at the free surfaces of the matrix layers, i.e. the surfaces which are not located at the supporting plates, it is achieved that the free surfaces of the matrix layers still are permeable to the vapour of the volatile liquid in both the evaporation stage and the condensing stage.

Abstract: An absorption heat pump, including: an evaporator which takes in a first heat source and evaporates refrigerant liquid into refrigerant vapor; an absorber which has a heat receiving medium passage and which takes in heat receiving medium liquid through a heat receiving medium inlet of the heat receiving medium passage, heats the heat receiving medium liquid with the heat of absorption generated when the refrigerant vapor generated in the evaporator is absorbed into solution, and discharges the heat receiving medium in the form of vapor or mixture of vapor and liquid through a heat receiving medium outlet of the heat receiving medium passage; a generator which takes in a second heat source and evaporates the refrigerant from the solution having absorbed the refrigerant vapor; and a condenser which takes in a cooling source and the refrigerant vapor generated in the generator to condense the refrigerant vapor.

Abstract: Heat pumps move heat from a source to a higher temperature heat sink. This invention enables spontaneous source-to-sink heat transfer. Spontaneous heat transfer is accomplished by conducting heat from the source through rotating disks to a portion of the generally warmer sink flow that is cooled to a temperature below that of the source by the Bernoulli effect. The nozzled flow required for Bernoulli cooling is provided by the corotating disk pairs. The distance between the opposing surfaces of the disk pair decreases with distance from the rotation axis, forming a nozzle. The heat-sink flow through the nozzle is maintained by centrifugal force caused by the circular motion of the gas near the disk surfaces. Embodiments of the invention differ in the paths followed by the source and sink fluid flows, by the number of disk pairs and by the state (gas or liquid.) of the heat source.

Abstract: A heating and air conditioning device 20 for an automotive vehicle, comprising a refrigerant circuit 4 in which a refrigerant circulates between three distinctive units 6, 10, 14 exchanging with respective secondary liquid loops 8, 12, 16, wherein: an evaporating unit 6 is dedicated to the evaporation of the refrigerant when operating in a cooling mode, a cooling unit 10 is dedicated to the cooling or condensation of the refrigerant when operating in the cooling mode as well as operating in the heating mode, a reversible unit 14 is dedicated to the evaporation of the refrigerant when operating in the heating mode and dedicated to the cooling or condensation of the refrigerant when operating in the cooling mode.

Abstract: Methods and apparatus for separating fluids are disclosed. We have discovered that, surprisingly, providing an open pore structure between a wick and an open flow channel resulted in superior separation performance. A novel and compact integrated device components for conducting separations are also described.

Abstract: A fin-tube heat exchanger 1 includes a plurality of fins 3 arrayed spaced apart from and parallel to each other so as to form gaps for allowing a first fluid to flow therethrough, and a plurality of heat transfer tubes 2 penetrating the plurality of fins 3 and for allowing a second fluid to flow therethrough. The plurality of heat transfer tubes 2 includes first heat transfer tubes 2A and second heat transfer tubes 2B arranged in a predetermined row direction that intersects the flow direction of the first fluid. The fins 3 have protrusions 5 each disposed between a first heat transfer tube 2A and a second heat transfer tube 2B, for guiding the first fluid toward the first heat transfer tube 2A side and the second heat transfer tube 2B side. The equivalent diameter of the protrusion 5, as viewed in the axis direction of the heat transfer tubes 2, is equal to or greater than the outer diameter of the heat transfer tubes 2.

Abstract: An R-410A DX heating/cooling system with: an electrical generating expansion device; with a protective means for refrigerant transport tubing containing dissimilar metals and/or in corrosive environments; with an automatic heating mode expansion device; with a TXV by-pass design; with retractable sub-surface tubing designs; with sub-surface line set sizing at varying depths and lengths; with reciprocal compressor sizing; with a DX Hydronic system design; with an improved oil separator float design; with a mobile DX system design; and with a resting module DX system design.

Abstract: A heatpump system (10) for controlling the temperature of a fluid within a predetermined space (12). The heatpump system (10) comprises a heat-transferring component (14) located proximate to predetermined space (12) and a heat-transferring sink (26) located remote from the predetermined space (12). In the remote heat sink, heat is rejected to and/or absorbed from an environmentally contaminable medium (e.g., soil or water). The heatpump system (10) further comprises a naturally occurring refrigerant (e.g., carbon dioxide) that is carried through the cycle by a circuit (20).

Abstract: An absorption heat pump, including: an evaporator which takes in a first heat source and evaporates refrigerant liquid into refrigerant vapor; an absorber which has a heat receiving medium passage and which takes in heat receiving medium liquid through a heat receiving medium inlet of the heat receiving medium passage, heats the heat receiving medium liquid with the heat of absorption generated when the refrigerant vapor generated in the evaporator is absorbed into solution, and discharges the heat receiving medium in the form of vapor or mixture of vapor and liquid through a heat receiving medium outlet of the heat receiving medium passage; a generator which takes in a second heat source and evaporates the refrigerant from the solution having absorbed the refrigerant vapor; and a condenser which takes in a cooling source and the refrigerant vapor generated in the generator to condense the refrigerant vapor.

Abstract: An absorption heat pump, including: an evaporator which takes in a first heat source and evaporates refrigerant liquid into refrigerant vapor; an absorber which has a heat receiving medium passage and which takes in heat receiving medium liquid through a heat receiving medium inlet of the heat receiving medium passage, heats the heat receiving medium liquid with the heat of absorption generated when the refrigerant vapor generated in the evaporator is absorbed into solution, and discharges the heat receiving medium in the form of vapor or mixture of vapor and liquid through a heat receiving medium outlet of the heat receiving medium passage; a generator which takes in a second heat source and evaporates the refrigerant from the solution having absorbed the refrigerant vapor; and a condenser which takes in a cooling source and the refrigerant vapor generated in the generator to condense the refrigerant vapor.

Abstract: The invention relates to an air-conditioning system (1) for a vehicle driven by a motor (16), having a refrigerant circuit (5) with a plurality of heat exchangers (2, 11) through which a refrigerant can be conducted for an exchange of heat with the air which flows through them, and having a heat pump heat exchanger (9) in which an exchange of heat with a coolant circuit (6), in which at least one coolant cooler (19) is arranged, takes place, with it being possible for the coolant cooler (19), in the heating mode, to be used as a heat exchanger for absorbing heat from the environment, and with the coolant cooler (19) being connected in series downstream of the heat pump heat exchanger (9) in the coolant circuit (6), and to a method for regulating an air-conditioning system (1) of said type.

Abstract: The present invention provides an adsorbent for adsorption heat pump and humidity-control air conditioner, which is capable of adsorbing an adsorbate therein and desorbing the adsorbate therefrom in a narrow relative vapor pressure range, and can be regenerated (desorption) at a low temperature. Also, the present invention provides an adsorption heat pump and humidity-control air conditioner using the adsorbent which can be effectively operated even by a low-temperature heat source, as well as methods of operating the adsorption heat pump and humidity-control air conditioner by effectively utilizing low-temperature exhaust heat. The absorbent of the present invention comprises zeolite containing (i) aluminum, (ii) phosphorus and (iii) iron and/or gallium in a skeletal structure thereof, which is substantially free from change in structure upon subjecting the adsorbent to adsorption and desorption of water vapor.

Abstract: The present invention provides a heat source unit capable of being used in either an air conditioner for switchable cooling and heating operation or an air conditioner for simultaneous cooling and heating operation. An air conditioner principally includes one heat source unit, a plurality of utilization units, and a connecting unit provided for each utilization unit. The heat source unit uses water as the heat source, and principally includes a compressing means, a main heat exchanger, a first switching means, a main refrigerant switching means, an auxiliary heat exchanger connected in parallel with the main heat exchanger, a second switching means, an auxiliary refrigerant switching means, and a liquid receiver. The auxiliary heat exchanger is capable of switching between functioning as an evaporator and a condenser, by the second switching means.

Abstract: A thermoacoustic device 1 for reliably generating standing and traveling waves, which have a large sound pressure, in a loop tube, has a loop tube 2 in which a working fluid is sealed; first stacks 3a, each of which has a plurality of communication paths 30 along a heat transportation direction and is provided between a first high-temperature side heat exchanger 4 and a first low-temperature side heat exchanger 5, which are provided in this loop tube 2; and a second stack 3b which has a plurality of communication paths 30 along a heat transportation direction and which is provided between a second high-temperature side heat exchanger 6 and a second low-temperature side heat exchanger 7, which are provided in the loop tube 2, and in the thermoacoustic device 1, self-excited standing and traveling waves are generated by heating the first high-temperature side heat exchanger 4, so that the second low-temperature side heat exchanger 7 is cooled by the standing and traveling waves.

Abstract: Heat pumps move heat from a source to a warmer sink, with Bernoulli heat pumps accomplishing this movement by reducing the temperature in a portion of the generally-warmer heat-sink flow. Heat flows spontaneously from the generally cooler heat-source flow into the locally cold portion of the heat-sink flow, which is the neck of a Venturi. The temperature reduction results from the Bernoulli conversion of random gas-particle motion (temperature and pressure) into directed motion (flow). This invention is a Bernoulli heat pump in which the heat transfer into the Venturi neck exploits unusual thermodynamic transport properties of rare-gases. Rare gases, especially mixtures of them, possess unusually small Prandtl numbers and thereby facilitate the diffusion of random particle motion (heat) relative to the diffusion of directed particle motion (viscosity), viscous friction being responsible for most of the power consumed by a Bernoulli heat pump.

Abstract: A high efficiency absorption heat pump cycle is disclosed using a high pressure stage, a supercritical cooling stage, and a mechanical energy extraction stage to provide a non-toxic combined heat, cooling, and energy system. Using the preferred carbon dioxide gas with partially miscible absorber fluids, including the preferred ionic liquids as the working fluid in the system, the present invention desorbs the CO.sub.2 from an absorbent and cools the gas in the supercritical state to deliver heat. The cooled CO.sub.2 gas is then expanded, preferably through an expansion device transforming the expansion energy into mechanical energy thereby providing cooling, heating temperature lift and electrical energy, and is returned to an absorber for further cycling. Strategic use of heat exchangers, preferably microchannel heat exchangers comprised of nanoscale powders and thermal-hydraulic compressor/pump can further increase the efficiency and performance of the system.

Abstract: A cooling or heating device in an absorption heat pump of GAX type, including a generator, a GAX heat exchanger, an absorber, a condenser, an evaporator, a pump connected to the absorber and generator, and a first circuit for refrigerant solution circulating through the device and connecting together at least the generator, GAX heat exchanger, absorber, condenser, evaporator, and pump. A valve device modifies the first circuit to vary the manner in which the absorber, condenser, and evaporator are connected together. At least first and second heat exchanger units enable at least one phase of the circulating solution to be changed and to enable thermal energy to be exchanged against an external fluid, the first and second heat exchanger units each including at least two mutually separate sub-heat exchangers configured to function either as an evaporator or as an absorber and condenser, depending on an operating mode of the device.

Abstract: The thermal management system includes: one or more heat acceptors which remove heat from one or more warm temperature heat sources; one or more absorption heat pumps, which use the heat removed from the warm temperature heat sources to generate either refrigeration or heating; a transfer system, such as a generator pumped liquid loop, for moving heat from the warm temperature heat sources to the absorption heat pumps; a transfer system, such as an absorber pumped liquid loop, for directing heat from the absorption heat pumps to one or more heat sink(s) at one or more temperatures if the absorption heat pumps are generating refrigeration; a transfer system, such as an evaporator pumped liquid loop, for directing heat from one or more cool temperature heat sources, at one or more temperatures, to the absorption heat pump(s) if the absorption heat pump(s) are operating generating heating; a transfer system, such as an evaporator pumped liquid loop, for directing heat from one or more cooling loads to the absorp

Abstract: A compressor having a housing with a compression mechanism mounted therein. A suction fluid passageway is located in the housing through which the compression mechanism receives refrigerant fluid. A thermoelectric device is in thermal communication with refrigerant fluid substantially at suction pressure in the suction fluid passageway. The thermoelectric device receives thermal energy from the suction fluid passageway and refrigerant fluid therein with the thermal energy being transferred from the compressor assembly.

Abstract: Heat dissipating apparatus or system for dissipating heat generated by a payload on a spacecraft having a plurality of surfaces. The system includes at least one radiator-condenser coupled to one or more of the surfaces of the spacecraft and a heat pump including an evaporator, a compressor, and an expansion valve coupled in a closed-loop manner to the radiator-condenser. The system components are coupled together using small diameter, thin- and smooth-walled tubing. The system enables the radiator-condenser to be elevated above the source or payload temperature, and, along with the use of thin walled tubing, reduces the mass of the spacecraft. Because the radiator-condenser temperatures are elevated, multiple surfaces of the spacecraft (west, east, earth and aft) can be effectively used as radiating surfaces.

Abstract: An aqua-ammonia chiller/heater apparatus is modified to provide a condenser and absorber refrigerant by-pass during a heater mode.

Abstract: A method and installation is described for producing cold and/or heat, in a place where the latter are to be used, from one or more heat energy sources. The method is carried out in an installation comprising two or three assemblies of two reactors in which reversible phenomena involving a gas take place, said phenomena being exothermic in the sense of synthesis and endothermic in the sense of decomposition. The energy for the operation of the installation is supplied by a low temperature reactor of one or two assemblies. The installation is suitable for the remote production of cold or heat by means of the transport of gas at ambient temperature.

Abstract: There is provided an absorption chiller-heater comprising an exhaust gas flow path in which an exhaust gas flows; an exhaust gas fired regenerator provided on the exhaust gas flow path so as to be heated by the exhaust gas; a cooling medium solution passage supplying a first solution of a cooling medium which is collected by an absorber to the exhaust gas fired regenerator; and an exhaust gas heat collector provided on the cooling medium solution passage for carrying out heat exchange between the first solution and the exhaust gas.

Abstract: There is constructed a constitution including an exhaust gas fired regenerator constituting a heat source by exhaust gas from an external machine generating the exhaust gas, an introducing flow path for guiding the exhaust gas to the exhaust gas fired regenerator, an exhaust flow path for exhausting the exhaust gas from the exhaust gas fired regenerator, a bypass flow path branched from the introducing flow path, flow path switching device including a first damper provided at the introducing flow path and a second damper provided at the bypass flow path for switching flow of the exhaust gas to the introducing flow path and the bypass flow path, a damper provided at the exhaust flow path for cutting off the exhaust gas from flowing in the exhaust flow path and gas delivering device for blowing a gas to a portion of the exhaust flow path between the damper for cutting off the exhaust gas from flowing and the exhaust gas fired regenerator.

Abstract: An aqua-ammonia chiller/heater apparatus is modified to provide a condenser and absorber refrigerant by-pass during a heater mode.

Abstract: An adsorption heat pump is provided in which water vapor can be efficiently adsorbed and desorbed using a heat source having a lower temperature than ones heretofore in use because the pump employs an adsorbent which has a large difference in water adsorption amount in adsorption/desorption and can be regenerated (release the adsorbate) at a low temperature.

Abstract: It is an object of the present invention to reduce the constraint that the density ratio is constant as small as possible, and to obtain high power recovering effect in a wide operation range. A refrigeration cycle apparatus uses carbon dioxide as refrigerant and has a compressor, an outdoor heat exchanger evaporator, an expander and an indoor heat exchanger a radiator. An injection circuit for introducing high pressure refrigerant is provided in a halfway of an expansion process of said expander.