液体气化热实验研究

Measurement of Vaporization Heat of Fluid

设计了气化热量热器本体,该装置测量压力可达6 MPa,温度范围233～400 K。建立了绝热量热气化热实验系统,利用该系统对制冷剂R134a及制冷剂R600a的气化热数据进行了测量,温度范围分别为284.88～340.95 K和281.71～335.48 K,测量结果与NIST相比最大相对偏差为-2.29%,平均相对偏差小于±1%。

A adiabatic calorimetric apparatus was designed,and a set of experimental system was developed.Vaporization heat of R134 a and R600 a were measured,with the temperature range284.88～340.95 K and 281.71～335.48 K respectively.The maximum deviation is-2.29%and the average deviation is less than ±1%,compared with the NIST values.