How is the air conditioner cooled?

Traditional compression refrigeration has been widely used in household air conditioners, refrigerators and large, medium and small central refrigeration (air conditioning) stations. This refrigeration mode has to go through the processes of evaporation refrigeration of liquid refrigerant, compression of refrigerant vapor by compressor, liquefaction of cooling medium and circulation refrigeration. In this process, the compressor consumes more electric energy and produces more noise. In order to save electricity and reduce noise, Qiang Mao and others put forward a non-service invention-the pressurized flash refrigeration method for manufacturing new refrigerators, air conditioners and large, medium and small central refrigeration (air conditioners) units (patent application number: 98 1 19386.2). This refrigeration method relies on liquid refrigerant flash refrigeration, variable sound speed supercharger compresses refrigerant vapor, and then cools it by cooling medium. No compressor is used in this process, so it consumes less electricity and has less noise. This new refrigeration method was demonstrated by an expert group headed by Professor Wang Buxuan, director of Tsinghua University Institute of Thermal Engineering and Thermophysics and academician of China Academy of Sciences, on October 30th, 2000. There are four conclusions: 1. The pressurized flash refrigeration method is feasible in principle. 2. It is the first time to build a refrigeration unit according to the principle described in this method in China. 3. This method uses variable sound speed supercharger instead of compressor for refrigeration, which has obvious energy saving and energy saving benefits. 4. This method uses ammonia water and carbon dioxide instead of freon as refrigerants, which has obvious environmental benefits. This method uses carbon dioxide as refrigerant to build a new refrigeration unit, which can not only reduce the power consumption of refrigeration, but also make great contributions to reducing the urban "heat island" effect and slowing down global warming. The experts attending the demonstration suggested that the inventor try the prototype. According to the suggestion of experts, the inventor of this method has now issued an initiative to develop new refrigeration and air conditioning units to domestic and foreign manufacturers of refrigerators, air conditioners and large, medium and small central refrigeration (air conditioning) units.