Abstract: A refrigeration system includes a main refrigeration circuit for holding refrigerant fluid, the main refrigeration circuit including: a compression device 12, a heat rejecting heat exchanger 14, an expansion device 18 and a heat absorbing heat exchanger 16. In addition, the refrigeration system includes a buffer tank 20 attached to the main refrigeration circuit, with valves 22, 24 for controlling flow of refrigerant fluid between the main refrigeration circuit and the buffer tank 20. The refrigeration system is arranged such that the valves 22, 24 are controlled to transfer refrigerant fluid between the main refrigeration circuit and the buffer tank 20 based on a measure of sub-cooling in the main refrigeration circuit.

Abstract: A multi-function product disinfection cabinet preferably includes a sealed test cabinet, a high level disinfection system, a dehumidifier, an electrical function tester and a bar code reader. The sealed test cabinet preferably includes a sealed test chamber, a rear dehumidifier chamber and a rear droplet chamber. The high level disinfection system includes an aerosol blower, an aerosol generator, aerosol tubing and an aerosol control module. The aerosol blower blows a treatment substance from the aerosol generator into the sealed test chamber. The dehumidifier preferably includes components of an air conditioner. Air blowing upward from a chamber air blower dries products disinfected and tested in the sealed test chamber. An electrical function tester preferably includes an electronic test module, a plurality of test sockets and a plurality of interface test blocks. The bar code reader is used to read identification information from a cable or component.

Abstract: An apparatus includes a high side heat exchanger, a flash tank, a first load, a first compressor, an auxiliary cooling system, and a first check valve. The high side heat exchanger removes heat from a refrigerant. The flash tank stores the refrigerant from the high side heat exchanger. The first load uses the refrigerant to remove heat from a space proximate the first load. The first compressor compresses the refrigerant from the first load. The auxiliary cooling system removes heat from the refrigerant stored in the flash tank during a power outage. The first check valve directs the refrigerant between the first load and the first compressor back to the flash tank when the pressure of the refrigerant between the first load and the first compressor exceeds a threshold during the power outage.

Abstract: Refrigeration apparatus R that includes a refrigerant circuit composed of compression section 11, gas cooler 28, electric expansion valve 39, and evaporator 41 includes: electric expansion valve 33; tank 36; split heat exchanger 29; electric expansion valve 43; electric expansion valves 47 and 71; auxiliary circuit 48, main circuit 38, and control apparatus 57, in which control apparatus 57 regulates the gas cooler outlet temperature based on outside air temperature when the outside air temperature is higher than a specified temperature, and regulates the gas cooler outlet temperature based on saturation temperature ST of saturated liquid of the refrigerant after the refrigerant flows out of compressor 11 but before flows into electric expansion valve 33, when the outside air temperature is lower than the specified temperature.

Abstract: A thermal management system includes a closed dynamic cooling circuit, and a closed first steady-state cooling circuit. Each circuit has its own compressor, heat rejection exchanger, and expansion device. A thermal energy storage (TES) system is configured to receive a dynamic load and thermally couple the dynamic cooling circuit and the first steady-state cooling circuit. The dynamic cooling circuit is configured to cool the TES to fully absorb thermal energy received by the TES when a dynamic thermal load is ON, and the steady-state cooling circuit is configured to cool the TES when the dynamic thermal load is OFF.

Abstract: A refrigerator having a quick-freezing function includes: a main body; at least one freezing chamber disposed in the main body and comprising at least one quick-freezing chamber; a freezing evaporator disposed in the main body, and spaced apart from the at least one freezing chamber via a freezing air duct cover plate; a freezing fan corresponding to the at least one freezing chamber and a quick-freezing fan corresponding to the at least one quick-freezing chamber, and configured to blow cold air generated by the freezing evaporator into the at least one freezing chamber and the at least one quick-freezing chamber respectively; and a controller configured to control the freezing fan and the quick-freezing fan. The refrigerator can maintain the taste and nutrition of foods through quick-freezing, and prolong the fresh period of vegetables and fruits.

Abstract: In one aspect, a system for controlling the temperature within a gas adsorbent storage vessel of a vehicle may include an air conditioning system forming a continuous flow loop of heat exchange fluid that is cycled between a heated flow and a cooled flow. The system may also include at least one fluid by-pass line extending at least partially within the gas adsorbent storage vessel. The fluid by-pass line(s) may be configured to receive a by-pass flow including at least a portion of the heated flow or the cooled flow of the heat exchange fluid at one or more input locations and expel the by-pass flow back into the continuous flow loop at one or more output locations, wherein the by-pass flow is directed through the gas adsorbent storage vessel via the by-pass line(s) so as to adjust an internal temperature within the gas adsorbent storage vessel.

Abstract: A wastewater geothermal heat system is supplied with processed wastewater through a drip field in proximity to a thermal array part of a geothermal heat pump system. The wastewater treatment system portion provides a periodic source of treated wastewater. Several sensors and a control system regulate a pump that discharges wastewater from the treatment system and enters a drip field where it is released into the surrounding soil. The dampened soil provides an efficient vehicle to transfer heat into or out of a thermal array which is positioned adjacent to the drip field such that it is in contact with the soil that is dampened by the discharged wastewater.

Abstract: A waste heat recovery system of an internal combustion engine, in which regenerative energy transmitted to the internal combustion engine is increased with a simple mechanism. A controller of the waste heat recovery system of an internal combustion engine makes a determination as to whether it is necessary to increase the pressure of heat-transfer media in a heat exchanger, on the basis of the pressure detected by the high-pressure sensor. When it is necessary to increase the pressure in the heat exchanger, the controller causes a flow-rate regulating valve to start regulating the flow rate of the heat-transfer media while leaving the pump working. The controller causes the flow-rate regulating valve to continue the regulation at least until it is not necessary to increase the pressure in the heat exchanger, and then terminates the regulation.

Abstract: A method for increasing efficiency of a transcritical heat pump water heater system is provided, as well as the corresponding system. The refrigerant, such as CO2, is compressed to a supercritical point and passed through a gas cooler that is wrapped at least partially around a water storage tank, wherein the refrigerant transfers heat to water stored in the tank. The hot water is discharged from the storage tank proximate to a top of the tank, and cold water is introduced into the tank proximate to a bottom of the tank. The supercritical refrigerant is directed to flow through the gas cooler from a top point to a lowermost point in a flow direction such that the refrigerant exits the gas cooler proximate to the bottom of the tank at a location of the coldest water within the storage tank.

Abstract: A heat pump and a method of controlling a heat pump are provided. The heat pump may perform gas injection through a plurality of coolant injection circuits formed in a compressor, such as a scroll compressor, to increase a corresponding flow rate. The heat pump may control the plurality of coolant injection circuits based on one or more operation conditions by selecting an appropriate optimal middle pressure from a high-and-low pressure difference, a pressure ratio, and a compression ratio of the compressor to enhance cooling/heating performance.

Abstract: The rear side outer peripheral edge of a propeller fan rotated and driven by a motor, of a propeller fan drive unit, is surrounded by a bell mouth. An upper plate, a lower plate, a side plate, and a machine room plate constitute an air duct at the suction side, outside the radial direction of the propeller fan. The cross-section of the bell mouth, at a first position in the vicinity where a blade of the propeller fan is closest, and where the distance between the propeller fan and the plate constituting the air duct outside the radial direction is relatively narrow, is made to be such that an expansion angle ?1 of the bell mouth suction side is made small. The overlapped height Hb of the propeller fan and the bell mouth is made large against a cross-section at a second position where the distance between the propeller fan and a plate is relatively large. The shape of the cross-section of the bell mouth is made to change gradually between the first position and the second position.

Abstract: In a heat pump system including a water purifier and an evaporator for evaporating feed-water to produce steam, water used for spray cooling is effectively used and productivity of purified water used for the spray cooling is increased. Discharged water from the water purifier is supplied to the evaporator when water used for spray cooling is produced by use of the water purifier. Otherwise, drain of the evaporator having higher temperature is supplied to the water purifier by using such a fact that in a reverse osmosis membrane type water purifier, the higher the temperature of feed-water is, the higher the purified water productivity becomes.

Abstract: In a heat pump apparatus of the invention, a refrigerant is circulated through a compressor 31, a radiator 32, a first throttle apparatus 33, a heat exchanger 34, a second throttle apparatus 35 and an evaporator 36 in this order. The heat exchanger 34 can be utilized as both a radiator and an evaporator by operating the first throttle apparatus 33 and the second throttle apparatus 35. Therefore, even if the outside air temperature is high, discharge pressure and suction pressure of the compressor do not rise, the heat pump apparatus can be operated in a stable refrigeration cycle, and energy can be saved.

Abstract: The heat pump according to the present invention comprises a scroll compressor, and injects refrigerant to the scroll compressor by using the first refrigerant injection flow path and the second refrigerant injection flow path. By injecting refrigerant, an efficiency of the heat pump can be improved as compared with non-injection. Thus, a heating performance can be improved also in the extremely cold environmental condition such as the cold area. Also, because refrigerant is injected twice by using the first refrigerant injection flow path and the second refrigerant injection flow path, heating performance can be improved by increasing the injection flow rate.

Abstract: A heat pump according to the present invention comprises a plurality of the compression chambers, and compresses refrigerant with multistage, and injects vapor refrigerant into the space between the plurality of the compression chambers by using the first refrigerant injection flow path and the second refrigerant injection flow path. Performance and efficiency of the heat pump can be improved compared with non-injection, as flow rate of the refrigerant circulating the indoor heat exchanger is increased. Thus heating performance can be improved also in the extremely cold environmental condition such as the cold area by increasing the injection flow rate. Also, because the heat pump according to the present invention comprises the first refrigerant injection flow path and the second refrigerant injection flow path, refrigerant is injected twice. Thus, as the injection flow rate of the refrigerant is increased, heating capacity can be improved.

Abstract: A method for heating and cooling a consumable product disposed in a product container includes the steps of: (i) heating the consumable product to a first temperature by transferring heat from ambient air to refrigerant through a liquid-to-air heat exchanger; and (ii) heating the consumable product to a second temperature without transferring heat from the ambient air to the refrigerant through the liquid-to-air heat exchanger; wherein the second temperature is greater than the first temperature.

Abstract: A domestic appliance including an adsorption unit and further including a process air conduit, wherein an adsorption container operates as a heat exchanger for heating a stream of air flowing in the process air conduit and being applied to the adsorption container, with the adsorption unit configured for alternate and reversible operation in a first operating state in which a stream of air flowing in the process air conduit is applied to the adsorption container and which adsorbs adsorptive evaporating in the phase transition container, and in a second operating state in which the adsorbing agent is heated by the heater and the adsorptive is desorbed, with desorbed adsorptive condensing in the phase transition container, the domestic appliance including an assembly operatively associated with the adsorption unit for applying a stream of air flowing in the process air conduit to the adsorption container in the second operating state.

Abstract: A heat pump type hot-water heater includes a hot-water tank, a heat pump cycle for heating hot water, a partition plate which divides an interior of the hot-water tank into an upper space and a lower space, a hot-water supply heat exchanger which exchanges heat of water with heat of hot water in the hot-water tank to produce high temperature hot water, a hot water supply pump which sends hot water in the hot-water tank to the hot-water supply heat exchanger, a heating terminal which heats a room, and a heating pump which sends hot water in the hot-water tank to the heating terminal.

Abstract: A household appliance includes a drying chamber, a process air loop and a heat pump. The heat pump includes a heat transfer loop containing a heat transfer fluid, an evaporator heat exchanger, a liquefier heat exchanger, a compressor, and a nozzle. The heat transfer fluid has a critical temperature above 60° C., a nominal heat of vaporization at boiling point of at least 220 kJ/kg, a GWP index of less than 150 and a lower flammability level of at least 0.1 kg/m3. Preferably, the household appliance is a dryer for drying wet laundry.

Abstract: A refrigeration apparatus with an exhaust heat recovery device mounted on a vehicle includes a refrigeration cycle for allowing a refrigerant for refrigeration to circulate therethrough, and a Rankine cycle for allowing a refrigerant for the Rankine cycle to circulate therethrough. The refrigeration-cycle condenser and the Rankine-cycle condenser are disposed in predetermined positions of the vehicle in series with respect to a flow direction of external air for cooling, and the refrigeration-cycle condenser is disposed on an upstream side of the external air with respect to the Rankine-cycle condenser.

Abstract: A heat pump system (10) includes a compressor (20), a reversing valve (30), an outdoor heat exchanger (40) and an indoor heat exchanger (50) coupled via refrigerant lines (35, 45, 55) in a conventional refrigeration circuit, and a refrigerant-to-water heat exchanger (60). In the air cooling with water heating mode, the air heating with water heating mode and the water heating only mode, water from a water reservoir (64), such as a storage tank or swimming pool, is passed through heat exchanger (60) in heat exchange relationship with refrigerant passing through line (35). A refrigerant reservoir (70) may be provided for use in refrigerant charge control. A refrigerant line (71) couples reservoir (70) to the refrigerant circuit intermediate the outdoor and indoor heat exchangers for directing liquid refrigerant into the reservoir (70) and a refrigerant line (73) couples the refrigerant circuit upstream of the suction inlet to the compressor (20) for returning refrigerant to the refrigerant circuit.

Abstract: This invention relates to a method and apparatus for energy effective regulation of temperature and ventilation of one or more ventilation units of buildings, where one or more heat-pumps are used to exchange thermal energy between outdoor air and an indoor heat carrying fluid medium and where the heating and/or cooling of each ventilation units are achieved by distributing the indoor heat carrying fluid medium in each ventilation units, in such a manner that the natural short term variations in outdoor temperature due to passages of weather systems and the day/night variations is utilized to give the one or more heat-pumps optimized conditions such that they are only turned on for extracting outdoor heat which is delivered to the indoor heat carrying and distributing fluid medium at the relative warm periods in the case of warming the buildings, or only in the relative cold periods for cooling the heat carrying and distributing fluid medium for removal of indoor heat in the case of cooling the buildings, and

Abstract: A heating apparatus having a refrigeration cycle includes a compressor, a condenser and an evaporator. The heating apparatus has a first heat exchanger and a second heat exchanger, where the first heat exchanger is selected as a heat source, and the second heat exchanger is selected as either a cooling or heating source. The first heat exchanger and the second heat exchanger are connected in series with each other in a refrigerant circuit. A heating medium is circulated in a heat transfer device which is connected to the first heat exchanger. Bathwater of a bathtub and water of a hot-water storage tank are heated through the heat transfer device indirectly by the first heat exchanger.

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.