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SUPERCRITICAL REFRIGERATION CYCLE APPARATUS AND METHOD FOR CONTROLLING SUPERCRITICAL REFRIGERATION CYCLE APPARATUS
SUPERCRITICAL REFRIGERATION CYCLE APPARATUS AND METHOD FOR CONTROLLING SUPERCRITICAL REFRIGERATION CYCLE APPARATUS
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机译:超临界制冷循环装置和控制超临界制冷循环装置的方法
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摘要
A supercritical refrigeration cycle apparatus and a method for controlling a supercritical refrigeration cycle apparatus are provided. The supercritical refrigeration cycle apparatus may include a compressor; a gas cooler configured to cool the compressed a refrigerant in a supercritical state; a pressure control electronic expansion valve connected to the gas cooler; a receiver configured to temporarily store the refrigerant; a flow control electronic expansion valve connected to an outlet side of the receiver to control a flow rate of the refrigerant; and a controller configured to control the flow control electronic expansion valve based on a suction superheat degree of refrigerant suctioned into the compressor and a target suction superheat degree, and control the pressure control electronic expansion valve based on a target operation high pressure and a current operation high pressure. In this way, flow control and pressure control of refrigerant may be respectively implemented in a separate manner, thereby enhancing reliability and operation efficiency of the compressor, respectively.
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