流体机械2026，Vol.54Issue(2)：10-17,8.DOI:10.3969/j.issn.1005-0329.2026.02.002
基于水-汽双热源的板式换热器热工性能试验研究
Experimental study on thermal characteristics of plate heat exchanger based on water-steam dual heat sources
摘要
Abstract
To address the issue of substantial waste heat generated during proton exchange membrane fuel cell operation not being effectively recovered,a water-steam dual-heat source plate heat exchanger was designed to improve energy utilization efficiency.By varying its inlet conditions,the effects of steam and coolant temperature changes on the thermal characteristics of the heat exchanger were systematically analyzed.The results show that as the steam temperature increases,the proportion of steam heat exchange can reach up to 40% of the total heat exchange.As the coolant temperature increases,the proportion of coolant heat exchange can reach up to 82%of the total heat exchange.During the experiments,the heat transfer coefficients on the steam side and the coolant side reached maximum values of 156.9,783.44 W/(m2⋅K),respectively,indicating that the coolant side plays a dominant role in the dual-heat source plate heat exchanger.Furthermore,as the steam temperature increases,the heat exchange efficiency gradually decreases;as the coolant temperature increases,the heat exchange efficiency gradually increases.Among these,steam temperature has a more significant impact on heat exchange efficiency:for every average increase of 1℃ in steam temperature,the heat exchange efficiency decreases by approximately 0.74%.The findings provide a reference for multi-heat source waste heat recovery.关键词
双热源板式换热器/换热量/换热系数/换热效率Key words
dual-heat source plate heat exchanger/heat exchange capacity/heat transfer coefficient/heat exchange efficiency分类
能源科技引用本文复制引用
杨正艺,王子龙,王栋..基于水-汽双热源的板式换热器热工性能试验研究[J].流体机械,2026,54(2):10-17,8.基金项目
上海市自然科学基金项目(20ZR1438600) （20ZR1438600）
上海市教委青年东方学者项目(1018301008) （1018301008）
上海市浦江人才计划项目(18PJ1408900) （18PJ1408900）
