HFC32/HFC152a混合工质——热物性及替代CFC12冰箱的研究

Thermophisical Properties of Mixture HFC32/HFC152a and Utilizing it in Pefrigerator as an Alternative to CFC12

选择制冷工质CFC12的替代物时,除厂ODP和GWP值以外,另一个不容忽视的因素是所选工质的热物性与CFC12相接近,从而达到降低制冷系统改造成本,节约能耗之目的。本文选用ODP值为零的 HFC32/HFC152a混合[质作为CFC12的替代物,用 PR状态方程进行了热物性分析,并在冰箱中作以实验,取得良好的结果。

Besides the values,when selecting the alternative to CFC12,of ODP and GWP,another factor not to be ignored is that the refrigerant selected and CFC12 have ahnost identical thermophysical properties so as to reduce the cost of remaking refrigerating system and save en- ergy.In this paper,misture H FC32/HFC152a,provided with the zero value of ODP,was sub- stituted for CFC12 in a refrigerator and its thermophysical properties were analyzed by PR Equation of state.Some satisfactory results were obtained by test.