小型制冷装置HFC134a和HFC152a充注量的研究

Research on the Refrigerant Charge of HFC 134a and HFC152a in Small Type Refrigerating Appliance

针对制冷剂 HFC 152a 和 HFC 134a 的特性,对小型制冷系统充注量的计算方法及空泡系数关系式的影响进行了研究,并进行了实验验证,得到了这两种制冷剂充注量的计算方法。

Calculation methods of refrigerant charge are studied.Some void fraction correlations are used to predict the refrigerant charge of a small type refrigerating appliance.Through compari- sion of the refrigerant charge calculation with different void correlations and the experiment results,proper void fraction correlations being suited for HFC134a and HFC 152a are got.