表面张力是有沸腾和凝结换热计算必不可少的物性参数,目前国际上已商业化使用或提出的潜在的环保工质,大多数为氢氟烃(HFC)混合物,尤其是R22和R502的替代物.本文应用对比态原理和重正化群理论,提出了一种新的HFC类物质混合物表面张力的预估方程,并与国际上现有的预估式进行了比较分析.新预估式可以在广阔的温度范围内较高精度地再现实验数据,计算精度可以满足工程应用的需要.
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