The thermodynamic properties of refrigerants meet the requirements of the refrigeration cycle of the chiller,
Refrigerant has a relatively large range of refrigeration work: the critical point of the refrigerant to be high, easy to use general cooling water or air condensation;
The freezing temperature of the low pressure warning agent of the cold water cooler is lower, so that the lower evaporation temperature is obtained, and the working range of the refrigeration cycle is increased.
Wai;
Refrigerant has a proper working pressure and compression ratio: the use of the temperature range should be considered when selecting a refrigerant. When the evaporation temperature
And the condensation temperature to the timing, the use of different refrigerants in the refrigeration system will be different from the evaporation pressure and condensation pressure.
The refrigerant has a high capacity of unit capacity: the capacity of the unit volume of the refrigerant directly affects the volume of the cold water machine.
The greater the capacity of the unit capacity, the requirement to produce a certain amount of refrigeration, the smaller the volume of refrigerant cycle, which can reduce the compressor
Size.
Refrigerant has a lower adiabatic index: the lower the adiabatic exponent of the refrigerant, the lower the exhaust temperature of the compressor, which is not only conducive to improving the pressure
The volumetric efficiency of compressor, and the lubrication of the compressor is also good.