中文摘要：

本文从Clapryron相变热方程出发，将汽化热与对比温度进行了关联，得到一个新的估算液体汽化热的方程式，该式型式简单，参数少，只需要知道物质的临界温度、偏心因子以及摩尔气体常数就能计算，便于应用。利用新方程对31种制冷剂的汽化热进行了计算，平均绝对偏差为1．54％，满足工程需要。

英文摘要：

In the present work, a new equation for estimating vaporization heat of refrigerants was developed by applying the Clausius-Clapeyron equation. The equation is simple and only need three parameters to calculate.The vaporization heat of 31 pure refrigerants was calculated to verify the new equation, with the average absolute deviation 1.54%, compared with the literature values.