HCFC-123饱和蒸气压方程的研究

Research on vapor pressure equation for HCFC-123

ＨＣＦＣ－１２３是一种较为理想的 ＣＦＣ－１１的替代物，可用作水冷机组制冷剂以及泡沫塑料的发泡剂。在 Ｗｅｂｅｒ、 Ｋｕｂｏｔａ、 Ｙａｍａｓｈｉｔａ、 Ｍｏｒｒｉｓｏｎ和 Ｍａｅ－ｚａｗａ等学者的 ＨＣＦＣ－１２３饱和蒸气压试验数据的基础上，经过仔细分析，采用稳健回归方法进行了处理，筛选出一套由１２１组数据组成的综合数据，进而拟合得到适用范围较宽（２７３．１５～４５６．９６ Ｋ）精度良好的 ＨＣＦＣ－１２３蒸气压方程，具有较高的实际应用价值。

The vapor pressure data of HCFC-123 as reported by Weber, Kubota et al, Yamashita et al, Morrison and Maezawa et al were evaluated separately and a set of vapor pressure data with reasonable accuracy was obtained. Based on this data set, a Wagner type equation is proposed. This equation contains only four coefficients and correlates the measured vapor pressures with high accuracy. The range of temperature is from 273.15 to 456.96 K