ZHAO Xiaoming, HE Maogang, FU Qinsheng, et al. FLOW APPARATUS FOR MEASURING HEAT OF VAPORRIZATION FOR LIQUIDS[J]. CIESC Journal, 2001, (9).DOI:
流动型量热法测量汽化热的实验研究
摘要
建立了流动型量热法汽化热测量装置 .该装置测量压力可达 6MPa
温度范围 2 6 0~ 480K .以所建的装置测量了纯水的汽化热
测量结果与文献值比较其偏差在± 0 .85 %以内
证明了实验装置的可靠性 .利用该装置测量了制冷剂的替代工质HFC134a和HFC12 5的汽化热
为替代工质的筛选和工程设计提供了可靠的基础数据
Abstract
A flow apparatus for measuring heat of vaporization of liquids under pressure up to 6 MPa
and temperature from 260 K to 480 K is developed.Heats of vaporization of water are measured
and the differences of our experimental results with literature values are within 0.85%.The heats of vaporization HFC134a and HFC125 used as the alternatives of refrigerant Freon are determined
and 14 values of heat of vaporization are reported in this paper.