Abstract: A cascade CO2 refrigeration system includes a medium temperature loop for circulating a medium refrigerant and a low temperature loop for circulating a CO2 refrigerant. The medium temperature loop includes a heat exchanger having a first side and a second side. The first side evaporates the medium temperature refrigerant. The low temperature loop includes a discharge header for circulating the CO2 refrigerant through the second side of the heat exchanger to condense the CO2 refrigerant, a liquid-vapor separator collects liquid CO2 refrigerant and directs vapor CO2 refrigerant to the second side of the heat exchanger. A liquid CO2 supply header receives liquid CO2 refrigerant from the liquid-vapor separator. Medium temperature loads receive liquid CO2 refrigerant from the liquid supply header for use as a liquid coolant at a medium temperature. An expansion device expands liquid CO2 refrigerant from the liquid supply header into a low temperature liquid-vapor mixture for use by the low temperature loads.

Abstract: A system for desuperheating hot gaseous refrigerant using both a heat exchanger and a dispersed Venturi-driven injection of liquid refrigerant is disclosed. Further, a system, relating to cooling at least one compressed superheated refrigerant fluid prior to condensing, relating to extending the life of at least one condenser is disclosed.

Abstract: In a heat exchanger with a receiver tank, a coupling member and an adapter member constitute a connecting member that connects the receiver tank and the heat exchanger, where the connecting member has header connecting portions respectively connected with a concentrating part and a supercooling part of one of headers and the adapter member is connected with the connecting member and the receiver tank and is detachably attached to the receiver tank. The coupling member is assembled with a first divided member and a second divided member, where the first divided member is formed with header connecting portions to be connected with the second divided member.

Abstract: A method for removal of CO2 from a gas stream by anti-sublimation, comprising the steps of: a) introducing a gas stream containing CO2 into a frosting vessel; b) reducing the temperature of at least a portion of the gas stream in said frosting vessel to a temperature at which solid CO2 is deposited by anti-sublimation; c) discharging the gas stream depleted of CO2 from the frosting vessel; and d) recovering the deposited solid CO2; wherein the pressure of the gas stream in step b) is higher than atmospheric pressure. An anti-sublimation system for removal of CO2 from a gas stream, comprising: a frosting vessel configured to receive the gas stream, said frosting vessel comprising a low temperature refrigeration device configured for reducing the temperature of at least a portion of a gas stream in said frosting vessel to a temperature at which solid CO2 is deposited by anti-sublimation; and a compressor configured to increase the gas pressure of the gas stream which is fed to the frosting vessel.

Abstract: A refrigerant system operates in a transcritical regime. An economizer circuit is incorporated into the refrigerant system, and includes an economizer injection line for refrigerant injection above the critical point. In one of the disclosed embodiments, the refrigerant utilized is CO2.

Abstract: A scroll compressor and an air conditioner in which improvement of performance is achieved by a gas injection cycle and increase in manufacturing cost is prevented are provided.

Abstract: A heat recovery system for a turbomachine system includes a heat removal system and a refrigeration system. The heat removal system is fluidly connected to at least one component of the turbomachine system. The heat removal system passes a cooling fluid through the at least one component to absorb heat. The refrigeration system is operatively connected to the heat removal system. The refrigeration system extracts the heat from the cooling fluid passing through the at least one component of the turbomachine system to produce a cooling effect.

Abstract: A refrigerating cycle apparatus includes a circulation refrigerant, a compressor, a condenser, an expansion valve, an evaporator, and an internal heat exchanger. The internal heat exchanger is disposed to perform heat exchange between a high pressure circulation refrigerant flowing from the condenser to the expansion valve and a low pressure circulation refrigerant flowing from the evaporator and the compressor. The circulation refrigerant has a property indicating an isentropic line having a gradient greater than a gradient of an isentropic line of a R134a refrigerant and a saturation characteristic curve having a two-phase region enthalpy width smaller than a two-phase region enthalpy width of the R134a refrigerant, on a p-h chart.

Abstract: The invention relates to refrigerating systems, primarily, to refrigerating systems employing compressors with economizing inlets and multi-pass condensers. In accordance with the invention a refrigerating system with economizing cycle employs a compressor unit with an economizer inlet and a condenser unit having a first condensation stage, a second condensation stage, and means to remove liquid refrigerant portion between the condensation stages. An intermediate liquid outlet from the first condensation stage feeds a circuit with the evaporator and a liquid outlet from the second condensation stage feeds a circuit with the economizer inlet. The invention provides a high efficiency refrigerating system incorporating of advantages of cost-effectiveness provision of liquid sub-cooling or/and liquid temperature inherent for refrigerating systems with economizing cycle and cost-effectiveness advantages of two-stage condensation condensers.

Abstract: A Stirling cooler includes a Stirling refrigerator having a heat dissipation unit and a heat absorption unit, a cooling compartment cooled by cold heat of the heat absorption unit, a secondary refrigerant circulation circuit cooling the heat dissipation unit, and a tertiary refrigerant circulation circuit exchanging heat with the secondary refrigerant circulation circuit.

Abstract: An internal heat exchanger assembly for an air conditioning system, having a housing defining a cylindrical with opposing ends. The ends are sealed with end caps having inlets/outlets. A helical coil tube is coaxially disposed within the cylindrical cavity, in which the helical coil includes two tube ends extending in opposing directions and exiting the cylindrical cavity through tube ports provided in the end caps. A twisted elongated strip is coaxially disposed within the cylindrical cavity extending from the first end to the second end. The twisted elongated strip includes a plurality of radially extending fingers adapted to engage the helical coil to maintain the helical coil in a predetermined position.

Abstract: A refrigeration system can incorporate a cooling-liquid injection system that can inject a cooling liquid into an intermediate-pressure location of the compressor. The cooling liquid can absorb the heat of compression during the compression of the refrigerant flowing therethrough. The refrigeration system can include an economizer system that injects a refrigerant vapor into an intermediate-pressure location of the compressor in conjunction with the injection of the cooling liquid. A refrigeration system can include a liquid-refrigerant injection system that can inject liquid refrigerant into an intermediate-pressure location of the compressor. The injected liquid refrigerant can reduce the discharge temperature of the refrigerant. The liquid-refrigerant injection system can be used with the cooling-liquid injection system and/or the economizer system.

Abstract: A refrigerant system providing enhanced performance over a wider range of operating conditions than traditional economized refrigerant systems. The system includes an economizer branch that connects a liquid outlet from a suction accumulator to an economizer inlet port of a compressor unit. The economizer branch includes a liquid refrigerant pump that delivers a non-evaporated liquid refrigerant portion from the suction accumulator into the economizer heat exchanger, where the liquid refrigerant portion evaporates, increasing thermodynamic potential of the main circuit refrigerant also flowing in through the economizer heat exchanger, and a formed vapor stream is delivered into the economizer inlet port of the compressor unit.

Abstract: A multi-zone HVAC&R system has its control programmed to provide diagnostic testing of air handling components and refrigerant components associated with each climate controlled zone in sequence. The control changes the original position of the corresponding component and a resultant change in a relevant operational parameter is sensed. If the actual change is outside of the tolerance band associated with the expected change, then the determination is made that the component under consideration is malfunctioning. The periodicity of a diagnostic procedure for a particular component is typically defined by its criticality and reliability level. If the change in the corresponding operation parameter is recorded and stored in the database, the component degradation can be observed over time and a prognostic prediction can be made when a particular component requires preventive maintenance or replacement.

Abstract: A heat source side circuit (14) includes a gas-liquid separator (35) for the separation of refrigerant flowing therein from an expander (31) into liquid refrigerant and gas refrigerant and a cooling means (36, 45, 53, 55) for the cooling of liquid refrigerant heading from the gas-liquid separator (35) to a utilization side circuit (11). Since the refrigerant exiting the gas-liquid separator (35) is in a saturated liquid form, it always changes state to a subcooled state whenever cooled by the cooling means (36, 45, 53, 55).

Abstract: A refrigeration apparatus includes two sub passages which are branched from a main passage located between a condenser and an expansion part and which are connected to a compressor. On the sub passages are provided supercooling-use expansion parts, and supercooling-use heat exchangers for performing heat exchange between a refrigerant on an outlet side of the supercooling-use expansion part and a refrigerant of the main passage. Therefore, each time the refrigerant of the main passage passes through the two supercooling-use heat exchangers the degree of liquid supercooling of the refrigerant is increased.

Abstract: A refrigerant system is provided with an expansion device that may be a thermostatic expansion device or an electronic expansion device. A bypass line selectively allows a portion of refrigerant to bypass the expansion device and to flow through a fixed restriction expansion device such as an orifice positioned in parallel configuration with the main expansion device. A valve selectively enables or blocks refrigerant flow through this bypass line depending on the volume of refrigerant required to circulate through the refrigerant system as defined by environmental conditions and a mode of operation. The valve can be a simple shutoff valve or a three-way valve selectively allowing or blocking refrigerant flow through a particular refrigerant line or lines. In one embodiment, the expansion device is the main expansion device for the refrigerant system. In the other embodiment, the expansion device is a vapor injection expansion device for expanding refrigerant for performing an economizer function.

Abstract: A multi-stage refrigeration system is provided. The refrigeration system includes a first compression element which produces a first compressed refrigerant stream. A mixer combines the first compressed refrigerant stream with an auxiliary refrigerant stream. A second compression element is coupled to the mixer and produces a second compressed refrigerant stream. A first heat exchanger receives the second compressed refrigerant stream and generates a cooled stream. A stream splitter receives the cooled stream and provides first and second output streams. A first expansion valve receives the first output stream and controls the flow of the first output stream and a second expansion valve receives the second output stream and controls the flow of the second output stream. A second heat exchanger generates the auxiliary refrigerant stream provided to the mixer.

Abstract: A transcritical vapor compression system includes a fluid circuit circulating a refrigerant in a closed loop. The fluid circuit has operably disposed therein, in serial order, a first compressor, an intercooler, a second compressor with a variable capacity, a first heat exchanger, an expansion device and a second heat exchanger. The first compressor compresses the refrigerant from a low pressure to an intermediate pressure. The second compressor compresses the refrigerant from the intermediate pressure to a supercritical pressure. The first heat exchanger is positioned in a high pressure side of the fluid circuit. The second heat exchanger is positioned in a low pressure side of the fluid circuit. The expansion device reduces the pressure of the refrigerant from a supercritical pressure to a relatively lower pressure. Cooling means cools the refrigerant within one of the compressors.

Abstract: A refrigeration system includes a primary compressor that receives refrigerant from an evaporator and delivers refrigerant to a condenser, a subcooling compressor that delivers refrigerant to the condenser, and a subcooler that receives refrigerant from the condenser. A first refrigerant flow path and a second refrigerant flow path pass through the subcooler. The first refrigerant flow path delivers a portion of the refrigerant to the evaporator, and the second refrigerant flow path delivers a remainder of the refrigerant to the subcooling compressor. The refrigeration system includes a controller operable to control operation of the subcooling compressor such that the refrigeration system operates at a point of highest efficiency.

Abstract: Disclosed is a method and device for a refrigerant-based thermal energy storage and cooling system with an isolated evaporator coil in a secondary cooling loop. The disclosed embodiments provide a refrigerant-based ice storage system with increased versatility, reliability, lower cost components, reduced power consumption and ease of installation.

Abstract: An economized refrigerant vapor compression system (10) for water heating includes a refrigerant compression device (20), a refrigerant-to-water heat exchanger (30), an economizer heat exchanger (60), an evaporator (40) and a refrigerant circuit (70) providing a first flow path (OA, 70B, 70C, 70D) connecting the compression device (20), the refrigerant-to-liquid heat exchanger (30), the economizer heat exchanger (60) and the evaporator (40) in refrigerant circulation flow communication and a second flow path (70E) connecting the first flow path (62) through the economizer heat exchanger (60) to the compression device (20). The economizer heat exchanger (60) has a first pass (62) for receiving a first portion of the refrigerant having traversed he refrigerant-to-liquid heat exchanger and a second pass (64) for receiving a second portion of the refrigerant having traversed the refrigerant-to-liquid heat exchanger.

Abstract: Provided is a suction pipe assembly with improved heat conductivity and a manufacturing method thereof. The suction pipe assembly includes a suction pipe, a capillary, a heat transmission pipe, and an adhesive agent. The suction pipe is disposed between a compressor and an evaporator and guides a refrigerant ejected from the evaporator to the compressor in a cooling system executing cooling by circulating the refrigerant and including the compressor, the condenser and the evaporator. The capillary is disposed between the condenser and the evaporator and guides the refrigerant ejected from the condenser to the evaporator. The heat transmission pipe includes the capillary inside and a contact portion for widening a contact area to the suction pipe outside to tightly contact the suction pipe. The adhesive agent is interposed between an external surface of the suction pipe and the contact portion to connect the heat transmission pipe with the suction pipe.

Abstract: A gas cooler and heat exchanger assembly comprises a gas cooler, including a cylindrical inlet header and a cylindrical outlet header, and a heat exchanger, including a first tank and a second tank, with at least a portion of each of the tanks being cylindrical and being an extension of and integral with each of the associated and aligned headers. In the first embodiment, the entirety of each of the tanks is cylindrical in shape and extends from the associated header. Each of the tanks is bisected thus defining a semi-cylindrical hot chamber and a semi-cylindrical cool chamber. In the second embodiment, only the cylindrical hot chamber of each of the tanks is cylindrical in shape and extends from the associated header. An additional box-shaped structure defines a box-shaped cool chamber disposed along and inwardly of each of the cylindrical hot chambers.

Abstract: In an internal heat exchanger, when a corresponding diameter of a high pressure passage 5a is ?h, a passage length Lh of the high pressure passage (5a) is so set as to satisfy the relation 9.16/{LN(4.5??h+1.03)}<Lh<46/{LN(4.5??h+1.03)}, and when a corresponding diameter of a low pressure passage 5c is ?l, a passage length Ll of the low pressure passage 5c is so set as to satisfy the relation 9.16/{LN(0.56×6??l+1.02)}<Ll<46/{LN(0.56×6??l+1.02)}, a passage sectional area Ah of the high pressure passage 5a is so set as to satisfy the relation 100×(0.25×?h1.2)?1/(0.04×?h+1.7)?Ah?100×(500×?h1.2)?1(0.04×?h+1.7), and a passage sectional area Al of the low pressure passage 5c is so set as to satisfy the relation 1.65/?l0.67<Al<626/?l0.67.

Abstract: A refrigeration system for use in cooling electronic equipment includes a closed vapor circuit having operably disposed therein, in serial order, a fluid pumping device, a first heat exchanger, a flow regulator and a second heat exchanger. A converter is operably couplable to a power supply and is operably coupled to at least one refrigeration system component. The at least one refrigeration system component is operably coupled to the closed vapor compression circuit. The converter supplies power to the at least one refrigeration system component. The converter further supplies DC power to the electronic equipment being cooled by the refrigeration system.

Abstract: A temperature-controlled vehicle including a cascade refrigeration system having a booster cooling line configured to supplement the cooling capacity of the cascade refrigeration system by expanding and venting a portion of a cryogenic refrigerant to the atmosphere during peak demands while the cascade refrigeration system continues to operate.

Abstract: A heat exchanger has header tanks each including a header forming plate, a tube connecting plate, and an intermediate plate interposed between the two plates, the plates being arranged in superposed layers and brazed to one another. Each of the plates is made from a metal plate by press work. The header forming plate has an outward bulging portion. The tube connecting plate has tube insertion holes. The intermediate plate has communication holes causing tube insertion holes to communicate with the interior of each outward bulging portion therethrough. Heat exchange tubes have opposite ends placed into the respective insertion holes and brazed to the respective tube connecting plates. The heat exchanger including such header tanks is reduced in the number of components, can be fabricated with a high work efficiency, and exhibits improved heat exchange performance.

Abstract: An electronic equipment includes a cooling system using boiling and condensation of a refrigerant, especially stabilizes the cooling performance, and reduces the influence which vibration accompanying phase change of boiling and condensation gives to the electronic equipment. Electronic equipment includes a cooling system including a cooling part which cools heat generating from a heat generator such as a heat generating component by using boiling of a refrigerant and is thermally connected to the heat generator such as the heat generating element, a heat radiation part which radiates heat absorbed by the refrigerant in the cooling part by condensation, a refrigerant drive part for delivering the condensed refrigerant to the cooling part again, and piping which fluidly connects them, and the electronic equipment includes preliminary heating means for heating the refrigerant, which flows to the cooling part from the refrigerant drive part, between the refrigerant drive part and the cooling part.

Abstract: Alternative means of inhibiting frosting in the interior heat exchanger of a DX system when switching from the heating mode to the cooling mode, plus an improved insulation and heat transfer means for vertically oriented sub-surface geothermal heat transfer tubing, as well as a means to protectively coat the sub-surface metal tubing of a DX system in a corrosive environment.

Abstract: A refrigeration unit comprises a CO2 refrigeration circuit having a CO2 compression stage in which CO2 refrigerant is compressed, a CO2 condensation stage having a tank in which CO2 refrigerant is accumulated in a liquid state, at least one of pressuring means and an expansion stage to direct the CO2 refrigerant from the CO2 condensation stage to a CO2 evaporation stage in which CO2 refrigerant absorbs energy to refrigerate. A condensation circuit has a second refrigerant being circulated between a second compression stage, a second condensation stage, a second expansion stage and a second evaporation stage. A heat-exchanger unit by which the CO2 refrigerant from the CO2 refrigeration circuit is in heat exchange with the second refrigerant in the second evaporation stage such that the second refrigerant absorbs heat from the CO2 refrigerant to at least partially liquefy the CO2 refrigerant for the CO2 condensation stage.

Abstract: A transcritical vapor compression system includes a fluid circuit circulating a refrigerant in a closed loop. The fluid circuit has operably disposed therein, in serial order, a first compressor, an intercooler, a second compressor with a variable capacity, a first heat exchanger, an expansion device and a second heat exchanger. The first compressor compresses the refrigerant from a low pressure to an intermediate pressure. The second compressor compresses the refrigerant from the intermediate pressure to a supercritical pressure. The first heat exchanger is positioned in a high pressure side of the fluid circuit. The second heat exchanger is positioned in a low pressure side of the fluid circuit. The expansion device reduces the pressure of the refrigerant from a supercritical pressure to a relatively lower pressure. Cooling means cools the refrigerant within one of the compressors.

Abstract: An air conditioning system for circulating a refrigerant includes a condenser having a vapor inlet for condensing the refrigerant into a high-pressure liquid having a first predetermined temperature. A heat exchanger including an exhaust channel directs air therethrough. The heat exchanger further includes a refrigerant inlet in fluid communication with a refrigerant outlet for receiving a high-pressure liquid and for delivering the high-pressure liquid therethrough. Furthermore, a heat mass exchanger outputs wet working air having a second predetermined temperature. The heat exchanger is in fluid communication with the heat mass exchanger for receiving the working air having a temperature less than the high-pressure liquid. The working air flows through the exhaust channel and over the high-pressure liquid to transfer heat from the high-pressure liquid to the working air for reducing the temperature of the high-pressure liquid.

Abstract: Disclosed is a method and device for a refrigerant-based thermal energy storage and cooling system with multiple condensing units utilizing a common evaporator coil. The disclosed embodiments provide a refrigerant-based ice storage system with increased reliability, lower cost components, and reduced power consumption and ease of installation.

Abstract: A compression refrigeration system that includes a compressor, a heat rejector, expansion means and a heat absorber connected in a closed circulation circuit that may operate with supercritical high-side pressure.

Abstract: Adsorption process for recovering ozone from a feed gas mixture containing at least ozone and oxygen comprising (a) introducing the feed gas mixture into a first end of an adsorber vessel containing a zeolite adsorbent and selectively adsorbing ozone on the adsorbent; (b) withdrawing from a second end of the vessel a stream of oxygen essentially free of ozone; (c) terminating the flow of the feed gas mixture, introducing a purge gas into the second end of the vessel, and withdrawing from the first end of the vessel an outlet gas mixture containing at least purge gas and desorbed ozone; and (d) introducing an additional component into the feed gas mixture and/or the purge gas and adsorbing the additional component on the zeolite adsorbent. The additional component when adsorbed reduces the decomposition of ozone that would occur in the absence of the additional component adsorbed on the zeolite adsorbent.

Abstract: An air conditioner is disclosed which includes a pressurizer for pressurizing a suction-side refrigerant sucked into a compressor, and an auxiliary condenser for condensing a discharge-side refrigerant discharged out of the compressor. Accordingly, it is possible to raise the evaporation pressure of the suction-side refrigerant sucked into the compressor, and to reduce the condensation pressure of the discharge-side refrigerant discharged out of the compressor. As a result, the difference between the suction and discharge pressures of the compressor can be reduced, so that a reduction in compression load can be achieved. Thus, a reduction in power consumption can be achieved.

Abstract: An apparatus for maintaining the freshness of foods is provided. The apparatus comprises first and second electrodes spaced oppositely to a predetermined distance, a voltage generator unit applying voltage between the first electrode and the second electrode, heat transfer means connected to the first electrode or the second electrode to absorb heat from the space between the first electrode and the second electrode, and a temperature control unit controlling the heat transfer means such that the space between the first electrode and the second electrode is of predetermined temperature, whereby the heat transfer means is connected to the electrode for voltage application, so that both the application of electric field and the temperature regulation are advantageously obtained using a single electrode without installing a separate device for temperature regulation.

Abstract: Aspects of the invention are found in a heat exchanger. The heat exchanger includes a fluid inlet manifold, a fluid outlet manifold, a plurality of heat transfer channels configured to communicate with the fluid inlet manifold and the fluid outlet manifold, and packing located within the fluid inlet manifold. Further aspects of the invention are found in a refrigeration system. The refrigeration system includes a compressor and at least one heat exchanger coupled to the compressor. The at least one heat exchanger includes a header, packing located in the header, and a heat transfer channel. The heat transfer channel is configured to receive fluid passing through the header and the packing.

Abstract: A Rankine cycle system has a condenser, a heat pump connected to the condenser, a heat collecting device connected to the heat pump, and an expansion turbine connected to the heat collecting device and the condenser. The heat pump includes an expansion tank or closed vessel, a refrigerant supply conduit connected to the lower part of the expansion tank and to the condenser, and a refrigerant discharge conduit connected to the upper part of the expansion tank. An open/close valve is installed in the refrigerant supply conduit. A pressure regulating valve installed in the refrigerant discharge pipe opens when a pressure reaches a specified value or higher. A temperature regulating device can heat the refrigerant in the expansion tank to produce a refrigerant vapor of saturated temperature or higher, which vapor can be introduced into the heat collecting device.

Abstract: A method using vibration for conditioning, air-conditioning, cooling and decontaminating, disinfecting and sterilizing physical media. The method includes a first vibratory action (13) performed on a regulated incoming current of the physical medium (2) so that the flow of the physical medium (2) is formed and the necessary and adequate conditions for cooling are created; a refrigerating medium (3) and a cold-absorbing medium (6) interact in a heat exchanging system (1); and another vibratory action (10) is performed on a cold-absorbing medium in order that the physical medium is continuously and/or periodically decontaminated and the necessary and adequate conditions for the functioning of the decontamination system in its steady state are created.

Abstract: Hydrogen gas at a hydrogen refueling site is cooled below liquid nitrogen temperature (e.g., about 80K) for more efficient adsorption of hydrogen on hydrogen adsorbent particles in the fuel storage of a hydrogen powered vehicle. When compressed hydrogen gas is available it may be cooled with liquid nitrogen and then sub-cooled below about 70K by a Joule-Thompson expansion. When liquid hydrogen provides hydrogen gas it may be cooled below liquid nitrogen temperatures by mixing with liquid hydrogen or by heat exchange with liquid hydrogen.

Abstract: A heat pump system operates in heating and cooling modes. The heat pump is provided with both a reheat function and economizer circuit. The economizer circuit provides augmented performance to the heat pump, while the reheat coil allows enhanced control over temperature and humidity of the air supplied to the conditioned space. A bypass line around an outdoor heat exchanger is also provided to achieve additional flexibility of control for a sensible heat ratio. Selective operation of the abovementioned components and subsystems allows precise control over system operation parameters and hence satisfaction of a wide spectrum of sensible and latent load demands and improved reliability.

Abstract: A cryocooler for liquefying gas in which the neck of the dewar or cryostat includes a cold end of a cryocooler with the first stage cooling station, the first stage regenerator, the second stage cooling station, the second stage regenerator, and a condenser thermally coupled to the second cooling station. Radiation baffles are also present within the neck portion of the dewar between the storage portion for the dewar and the condenser, such that when the cryocooler is turned off, the radiation baffles reduce heat radiation on the cryogen in the storage section of the dewar.

Abstract: A system, compressor, and method that cools an electronics module with a low-pressure refrigerant. The system, compressor, and method utilize a temperature sensor that detects a temperature of the low pressure refrigerant and communicates with the electronics module. Based on the temperature detected by the temperature sensor, the electronics module controls a liquid dry out point of the refrigerant that is used to cool the electronics module.

Abstract: In a refrigeration device including a refrigeration circuit having a compressor and a receiver, the present invention will improve the ability of a liquid level detection circuit to accurately determine whether or not liquid refrigerant is stored up to a predetermined position of the receiver. An air conditioner includes a main refrigerant circuit and a liquid level detection circuit. The main refrigerant circuit includes a compressor that compresses gas refrigerant, a heat source side heat exchanger, a receiver that stores liquid refrigerant, and user side heat exchangers.

Abstract: The present invention discloses an apparatus and method for supercooling which can stably maintain the contents in a supercooled state for an extended period of time by controlling energy. The apparatus for supercooling includes a means for taking energy from the contents, and a means for causing at least one of rotation, vibration and translation to water molecules of the contents, by supplying energy smaller than the taken energy. The contents arc maintained in a liquid state below a phase transition temperature.

Abstract: An air conditioning system for communication equipment includes an indoor module placed inside a base station and an outdoor module placed outside the base station. The indoor module has a first indoor heat exchanger installed on a brine pipe and having a heat exchange tube, an expansion valve installed on a refrigerant pipe, a second indoor heat exchanger having a heat exchange tube to which the refrigerant pipe is connected, a compressor for compressing refrigerant, and an indoor blower. The outdoor module has a brine pump installed on the brine pipe, a first outdoor heat exchanger having a heat exchange tube to which the brine pipe extending from the brine pump and the first indoor heat exchanger is connected, a second outdoor heat exchanger having a heat exchange tube to which the refrigerant pipe, extending from the compressor and the expansion valve, is connected, and an outdoor blower.

Abstract: An ejector-type air-conditioning and refrigerating system according to the present invention is mounted on an automotive vehicle. The system includes a first evaporator for cooling a passenger compartment and a second evaporator for cooling a refrigerator mounted on the vehicle. Refrigerant is supplied to the first evaporator through an ejector, while the refrigerant is supplied to the second evaporator through a restrictor disposed in a branch passage. Refrigerant evaporated in the second evaporator is sucked by a sucking portion provided in the ejector through a sucking passage. A noise dissipater for suppressing noises caused by pulsating vibrations generated in the ejector is disposed in the sucking passage at a position close to the sucking portion of the ejector. The noise dissipater is postured in the sucking passage so that liquid components in the refrigerant including oil contained in the refrigerant are prevented from being retained in the dissipater.

Abstract: Aspects of the invention are found in a heat exchanger. The heat exchanger includes a fluid inlet manifold, a fluid outlet manifold, a plurality of heat transfer channels configured to communicate with the fluid inlet manifold and the fluid outlet manifold, and packing located within the fluid inlet manifold. Further aspects of the invention are found in a refrigeration system. The refrigeration system includes a compressor and at least one heat exchanger coupled to the compressor. The at least one heat exchanger includes a header, packing located in the header, and a heat transfer channel. The heat transfer channel is configured to receive fluid passing through the header and the packing.