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A METHOD FOR OPERATING A VAPOUR COMPRESSION SYSTEM USING A SUBCOOLING VALUE
A METHOD FOR OPERATING A VAPOUR COMPRESSION SYSTEM USING A SUBCOOLING VALUE
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机译:一种利用子气泡值操作蒸气压缩系统的方法
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摘要
A vapor compression system comprises a compressor, a condenser, an expansion device, e.g. in the form of an expansions valve, and an evaporator arranged along a refrigerant path. A method for operating the vapor compression system comprises the steps of: obtaining a superheat value being representative for the superheat of refrigerant entering the compressor; obtaining a subcooling value being representative for the subcooling of refrigerant entering the expansion device; and operating the expansion device on the basis of the obtained superheat value and on the basis of the obtained subcooling value. The subcooling value is taken into account when operating the expansion device, because variations in the subcooling value have significant influence on the refrigerating capacity of the evaporator at a given opening degree of the expansion device, thereby resulting in a more stable operation of the system. The system may further comprise an internal heat exchanger.
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