Abstract: A Brayton cycle type refrigerating apparatus using multiple stages of compressors and having a good response without reduction in efficiency due to change in heat load of the object to be cooled is provided. The Brayton cycle type refrigerating apparatus includes on a refrigerant line on which multiple stages of compressors are arranged in series. The apparatus also includes a temperature sensor for detecting heat load of an object to be cooled and a buffer tank provided between a low pressure line and a high pressure line. A flow rate of the refrigerant in the refrigerant line is controlled by controlling opening degrees of valves to adjust the cooling capacity.

Abstract: A sublimation defrost system for a refrigeration apparatus including: a cooling device in a freezer, and includes a casing containing a heat exchanger pipe; a refrigerating device for cooling and liquefying a CO2 refrigerant; and a refrigerant circuit connected to the heat exchanger pipe permitting the cooled and liquefied CO2 refrigerant to circulate. The defrost system includes: a dehumidifier device; a CO2 circulation path in the heat exchanger pipe, an on-off valve in the heat exchanger; a circulating unit for the CO2 refrigerant; a first heat exchanger part exchanging heat between a brine as a first heating medium and the circulating CO2 refrigerant; and a pressure adjusting unit for the circulating CO2 refrigerant during defrosting so that a condensing temperature of the CO2 refrigerant becomes equal to or lower than a freezing point of a water vapor in the freezer inner air without a drain receiving unit.

Abstract: A refrigerator including a first magnet provided at an upper end of a cover of an ice bucket and a second magnet provided at a ceiling of an inner liner. The ice bucket is fixed in a state in which the cover of the ice bucket is in tight contact with a front wall of an ice-making compartment due to magnetically attractive force between the first magnet and the second magnet.

Abstract: A system (170) has a compressor (22). A heat rejection heat exchanger (30) is coupled to the compressor to receive refrigerant compressed by the compressor. A non-controlled ejector (38) has a primary inlet coupled to the heat rejection exchanger to receive refrigerant, a secondary inlet, and an outlet. The system includes means (172, e.g., a nozzle) for causing a supercritical-to-subcritical transition upstream of the ejector.

Abstract: A refrigerator including a housing mounted at a rear surface of a door to define a storage space of food, a basket disposed inside the housing, a duct extending to the housing from one side of an evaporator to supply cold air generated by the evaporator into the storage space of the housing, and a fan assembly coupled to the duct to allow the cold air to be forcibly supplied.

Abstract: An ionic air cooling device comprising a salinity differential heat engine using a heat pump as the primary heat source and the mechanism by which the temperature differential is achieved. A closed loop thermodynamic cycle which produces a high thermodynamic efficiency in heat to energy conversion with a low temperature differential between the high and low sides, in addition to a net ambient temperature cooling effect by directly or indirectly converting ambient temperature/environmental low grade heat to electricity or potential kinetic energy or mechanical work. An ionic air cooling device which uses a salinity differential heat engine in which the heat energy can be converted to kinetic or electrical energy by means of pressure retarded osmosis, pressurized gas through volume confinement, or reversed electro dialysis.

Abstract: A vehicle air conditioning system is provided. The vehicle air conditioning system includes a first vapor compression refrigeration loop. The first vapor compression refrigeration loop includes a first refrigerant compressor and a first evaporator. The vehicle air conditioning system further includes a tank for holding a compressed fluid, an outlet configured to carry expanded fluid from the tank, and a heat exchanger thermally coupled to the first vapor compression refrigeration loop and to the outlet. The heat exchanger is configured to transfer heat from refrigerant carried by the first vapor compression refrigeration loop to fluid carried by the outlet, where the temperature of the fluid carried by the outlet has been reduced as a result of expansion of the fluid upon exiting the tank.

Abstract: The present invention relates to a passive type organic working fluid ejector refrigeration method. The liquid organic working fluid of the reservoir is added to evaporator using gravity. Then the refrigerant absorbs heat during evaporation in the evaporator. When the refrigerant temperature and pressure increases to a certain value, the self-operated pressure regulator valve automatically opens and the ejector begins to work. After condensing in the condenser, the working fluid divided into two streams. One stream returns to the reservoir and the other one flows into the cooling evaporator of refrigeration cycle to produce chilled water about 12° C. When the liquid refrigerant is completely evaporated in the evaporator, the self-operated pressure regulator valve opens and the working fluid flows into the evaporator from the reservoir. A certain quality of the working fluid is closed in the evaporator, preparing for a new work cycle as above-mentioned.

Abstract: An object is to provide a storage container including latent heat storage materials that provide a high cold insulation effect. A storage container 401 has an electric cooling function and stores an object. The storage container 401 includes at least one storage chamber 100 that stores the object; a first latent heat storage material A that is disposed in the storage chamber 100 and has a predetermined phase change temperature; and a second latent heat storage material B that is disposed in the storage chamber 100 and has a phase change temperature higher than the phase change temperature of the first latent heat storage material A.

Abstract: Cold storage unit apparatuses designed for high energy efficiency are provided, which may include: a refrigeration system; a box enclosing an interior space, the box formed by a plurality of insulated sides; an entry into the interior space including a plurality of openable barriers facilitating preventing entry of heat or moisture into the interior space; and a power system connected to the refrigeration system, the power system facilitating independent operation of the refrigeration system when not connected to a power grid, and further facilitating a net energy use of zero from a power grid when connected to a power grid. Cold storage units may further include systems for using the refrigerant of the refrigeration system to defrost one or more components of the cold storage unit, and for using the refrigerant to facilitate maintaining a desired internal temperature of the interior space of the cold storage unit.

Abstract: A spray structure for temperature regulation includes a spray system and a heat exchange cycling system. The heat exchange cycling system includes a thermal chip for providing a temperature regulation water which is received in the spray system to exchange energies. After the temperature regulation water is flowed through the thermal chip to exchange energies, the temperature regulation water is atomized by the spray system to regulate an inner temperature inside a space.

Abstract: A magnetic structure has a magnetocaloric material the temperature of which changes with application or removal of a magnetic field, and a high thermal conduction member which is in contact with the magnetocaloric material and has higher thermal conductivity than the magnetocaloric material. Further, this magnetic air-conditioning and heating device is provided with multiple of the aforementioned magnetic structures, a thermal switch which is arranged between magnetic structures and transmits or insulates heat, and a magnetic field varying unit which applies or removes a magnetic field to each of the magnetic structures. By providing in the magnetic structures a high thermal conduction member with higher thermal conductivity than the magnetocaloric material, some or all of the heat generated in the magnetocaloric material can be quickly conducted in the magnetic bodies.

Abstract: The use of the following techniques to clean air: (1) inlet air filtration, (2) continuous recirculation air filtration, (3) water filtration and disinfection, (4) use of an air curtain in the ice bin opening, and (5) provision of clean air to the air assist pump during the harvest cycle.

Abstract: Provided are a supercooler and an air conditioner including the same. The supercooler disposed between a condenser and an evaporator of an air conditioner to supercool a refrigerant condensed in the condenser, thereby allowing the supercooled refrigerant to flow into the evaporator includes an inner tube in which a first refrigerant passing through the condenser flows, an outer tube having an inner space in which the inner tube is disposed, the outer tube allowing a second refrigerant heat-exchanged with the first refrigerant to flow by using the inner tube as a boundary, and a baffle supporting the inner tube to prevent the inner tube from being shaken within the outer tube.

Abstract: A refrigerator includes a cold air supply device received in an insulating partition that defines a storage compartment into upper and lower storage compartments. As cold air is supplied into the storage compartment below the insulating partition through the cold air supply device, the refrigerator has enhanced productivity and interior volume efficiency.

Abstract: The invention relates to a method for transporting heat-sensitive products in a refrigerated lorry of the indirect injection type, wherein the temperature Tint inside the storage chamber is regulated by varying the pinch of the exchanger (Pinch=Tint?TFluid outflow) according to the position of the internal temperature Tint in relation to a temperature set value.

Abstract: In an air-conditioning apparatus including a plurality of indoor units connected to a heat medium converter and a plurality of remote controllers respectively provided for the indoor units, the remote controllers each include a temperature sensor that detect a temperature of a corresponding space to be air-conditioned, and are each configured to communicate with a heat medium converter controller of the heat medium converter and an indoor unit controller of the corresponding indoor unit, transmit an instruction to start and stop an operation and data related to rotation speed of an indoor air-sending device to the corresponding indoor unit controller, and transmit the instruction to start and stop the operation, and a target temperature and a temperature detected by the temperature sensor or a difference therebetween, to the heat medium converter controller.

Abstract: A portable medical refrigerator is provided that includes a cooling chamber having a housing, insulation and a cavity, where the insulation dissipates heat from the cooling chamber and insulates the cooling chamber, where the insulation includes a material and thickness disposed to hold the cooling chamber at a desired temperature, where the thickness of the insulation is according to an amount of heat entering the cooling chamber from the ambient surroundings, a thermoelectric cooling (TEC) device having a heat sink fan, and a planar heat pipe, where a first end of the planar heat pipe is connected to the cooling chamber and a second end of the planar heat pipe is connected to the TEC, where the TEC is disposed away from the cooling chamber, where the first end of the planar heat pipe is disposed to draw heat from the insulation to enable attainment of the desired temperature.

Abstract: An ice maker for refrigerator includes a case that encloses and protects a cooling space into which cold air is supplied, an ice making assembly for making ice using cold air supplied to the cooling space, an ice bucket for containing the ice made by the ice making assembly in the cooling space, and a cold air ventilation path for guiding cold air to flow along the outer circumferential surface of the ice bucket in the cooling space.

Abstract: An inertance tube for a pulse tube refrigerator which can be tuned to optimize performance. Apertures in the inertance tube fluidly communicate the inertance tube with a fluid reservoir. The effective length of the inertance tube is changed by alternatively closing or opening the apertures. Changing the effective length of the inertance tube causes a phase shift between the mass flow and pressure waves in the working gas which, in turn, changes the acoustic power. Controlling the phase angle improves Carnot efficiency. The cooling load capacity of the pulse tube refrigerator is a function of the acoustic power.