What is a refrigerant? Refrigerant should have what performance?

< p > what call refrigerant? Refrigerant should have what performance? < / p > < p > in refrigeration equipment refrigeration cycle system used in a refrigerating agent. And be able to play the role of a heat transfer. Refrigerant is also called the refrigerant. Refrigerant's function mainly through the change of the state of matter to transfer heat, refrigeration system in continuous circulation, the evaporation pressure, liquid cooling system can absorb heat evaporation become gas, and under the condensing pressure. Gaseous refrigerant gives off heat and liquefaction, heat transfer in the circulatory system of from time to time, so the refrigerant in the refrigeration system is necessary for the heat transfer of work material. To closer to the ideal from the Angle of pyrology reverse carnot cycle, on the performance of the refrigerant and heat exchange equipment in thermal efficiency, heat transfer temperature difference and so on all needs to have certain requirements, in order to make more economical and reasonable refrigeration equipment, less energy consumption. At the same time, should consider some refrigerants of atmospheric ozone layer destruction, and change the cooling methods and cooling equipment. Refrigerant should has the following properties: refrigerants should have good thermal performance, physics, chemistry, etc, because there is no ideal refrigerant completely but people should try to choose good refrigerant performance. < / p > < p > < / p >