A system includes a flash tank and a thermal storage tank. The flash tank is configured to store refrigerant and discharge a flash gas. The thermal storage tank is fluidically coupled to the flash tank and configured, when a power outage is determined to be occurring, to receive at least a portion of the flash gas from the flash tank, and remove heat from the flash gas. When a power outage is determined not to be occurring, the thermal storage tank directs refrigerant to a compressor.

A heat transfer system for controlling two or more heat loads, including a high transient heat load, is provided. The heat transfer system may include sensible-heat thermal energy storage. A method of transferring heat from two or more heat loads to an ambient environment is further provided.

A system includes a high side heat exchanger, a flash tank, a first load, a second load, and a thermal storage tank. The high side heat exchanger is configured to remove heat from a refrigerant. The flash tank is configured to store the refrigerant from the high side heat exchanger and discharge a flash gas. The first load is configured to use the refrigerant from the flash tank to remove heat from a first space proximate to the first load. The second load is configured to use the refrigerant from the flash tank to remove heat from a second space proximate to the second load. The thermal storage tank is configured, when a power outage is determined to be occurring, to receive at least a portion of the flash gas from the flash tank, and remove heat from the flash gas.

The present invention aims to alleviate the risk of leakage of refrigerant from a refrigerant circuit and particularly at the utilization side of the refrigerant circuit without the need to provide a dedicated bypass for refrigerant leakage prevention. A refrigerant system is configured such that, when a refrigerant leakage detection sensor detects refrigerant leakage, a controller is configured to adjust a opening degree of a bypass expansion valve independently of a pressure and/or temperature value detected by a sensor. A method of controlling a refrigerant system is also provided.

An air conditioner, a heating control method of an air conditioner, and a computer readable storage medium are provided. According to the method, a refrigerant passing through an evaporator is divided by a shunting module into two flows; one flow of the refrigerant is throttled and depressurized by an enhanced vapor injection electronic expansion valve. Based on a difference between an indoor pipe temperature and an exhaust temperature of a compressor of the air conditioner, an opening degree parameter of the enhanced vapor injection electronic expansion valve is controlled to control a refrigerant output amount by the enhanced vapor injection electronic expansion valve. Thus, the refrigerant amount of the flow of refrigerant, subject to throttling and depressurizing, for exchanging heat with the other flow of refrigerant can be controlled to implement an enhanced vapor injection function.

A refrigerant for a cooling device comprising a cooling circuit with at least one heat exchanger, the refrigerant undergoing a phase transition in the heat exchanger, the refrigerant being a refrigerant mixture composed of a mass fraction of carbon dioxide (CO.sub.2), a mass fraction of pentafluoroethane (C.sub.2HF.sub.5) and a mass fraction of at least one other component, wherein the mass fraction of carbon dioxide in the refrigerant mixture is up to 60 mass percent, the mass fraction of pentafluoroethane being 11 to 72 mass percent, the other component being 2,3,3,3-tetrafluoropropene (C.sub.3H.sub.2F.sub.4), the mass fraction of 2,3,3,3-tetrafluoropropene being up to 51 mass percent.

A reverse single-working-medium steam combined cycle, which refers to a closed process consisting of the following nine processes that are carried out separately or together by M1 kg and M2 kg working media: an endothermic vaporization process 12 by a M1 kg working medium, an endothermic process 23 by (M1+M2) kg working media, a boost process 34 by (M1+M2) kg working media, a heat release process 45 by (M1+M2) kg working media, a depressurization process 52 by a M2 kg working medium, a heat release process 56 by a M1 kg working medium, a boost process 67 by a M1 kg working medium, an exothermic condensation process 78 by a M1 kg working medium and a depressurization process 81 by a M1 kg working media. Similarly, the working media may also be used to carry out ten, eleven, twelve, thirteen, fourteen and fifteen processes separately or together so as to form a single-working-media steam combined cycle.

A refrigerated system includes a vapor compression system defining a refrigerant flow path and a heat recovery system defining a heat recovery fluid flow path. The heat recovery system is thermally coupled to the vapor compression system. The heat recovery system includes a first heat exchanger within which heat is transferred between a heat recovery fluid and an engine coolant and at least one recovery heat exchanger positioned along the heat recovery fluid flow path directly upstream from the first heat exchanger.

A linear compressor includes a housing defining a sump for collecting a lubricant and a pump for circulating a flow of lubricant within the housing. A heat dissipation or heat exchange assembly includes a plate mounted on a lower portion of the housing to define one or more fluid passageways between the plate and the housing. Hot oil is collected from the working components of the linear compressor and is passed through the one or more fluid passageways to discharge heat through the housing before the oil is returned to the sump.

A method for controlling a heat pump system. The heat pump system includes a compressor for compressing a working fluid of the heat pump system and an electric motor for providing an output torque for driving the compressor. The method includes the steps of recovering heat emitted from the electric motor by heating the working fluid, providing a first control mode and a second control mode for the electric motor, and controlling the electrical motor in a way creating higher heat losses of the electric motor for a given output torque of the electric motor in the second control mode than in the first control mode.