流体机械2017，Vol.45Issue(4)：54-57,53,5.DOI:10.3969/j.issn.1005-0329.2017.04
工质R245fa水平管内流动沸腾换热的试验研究
The Experimental Study on Flow Boiling Heat Transfer of Working Fluid R245fa in Horizontal Tube
摘要
Abstract
A bench-scale facility was designed for testing the flow boiling heat transfer coefficient and the total heat transfer coefficient.The boiling heat transfer characteristics of the R245fa refrigerant were studied in a horizontal smooth tube with 6 mm inner diameter.The parameters investigated were mass flow rate (50~150 kg/(m2·s)),evaporation temperature (50,60 and 70 ℃).The results showed that the flow boiling heat transfer coefficient of R245fa increased with the increase of rate of vapor content,and decreased slightly with the further increase of rate of vapor content.The total heat transfer coefficient of the flue gas and the R245fa is about 40~65 for the 304 stainless steel heat exchanger.关键词
有机朗肯循环/R245fa/低温余热/沸腾换热/换热系数Key words
organic rankine cycle/R245fa/low-temperature waste heat/boiling heat transfer/coefficient of heat transfer分类
机械制造引用本文复制引用
王夺,赵英汝,李宁,刘美丽,徐立平..工质R245fa水平管内流动沸腾换热的试验研究[J].流体机械,2017,45(4):54-57,53,5.基金项目
国家国际科技合作专项资助项目(2013DFG60120) （2013DFG60120）
