制冷学报2026，Vol.47Issue(2)：95-102,8.DOI:10.12465/issn.0253-4339.20241107002
R1233zd(E)在非等宽并联微通道内的流动沸腾传热实验研究
Experimental Investigation on Flow Boiling Heat Transfer of R1233zd(E)in Parallel Microchannel with Variable Width
蔡华宇 1方奕栋 2卢娣 1蒋陈涵1
作者信息
- 1. 上海理工大学能源与动力工程学院 上海 200093
- 2. 上海理工大学能源与动力工程学院 上海 200093||上海市动力工程多相流动与传热重点实验室 上海 200093
- 折叠
摘要
Abstract
The subcooled flow boiling heat transfer of R1233zd(E)in uniform-and variable-width parallel microchannels was investigated experimentally.The heat transfer characteristics of two channel structures were analyzed and compared under different subcooling,mass-flux,and heat-flux conditions.The experimental results reveal that the onset of nucleate boiling(ONB)of the variable-width parallel microchannel occurred earlier and that the wall temperature could be maintained at a lower value.In addition,the overall heat transfer characteristics of the variable-width microchannel were better than those of the uniform-width microchannel.When the mass flux was 1 263 kg/(m2·s),the wall superheat of the variable-width parallel microchannel was 3.2℃lower than that of the uniform-width parallel microchannel.When the heat flux was 150 kW/m2,the coefficient of heat transfer(HTC)of the variable-width parallel microchannel increased by 30%-50%compared with that of the uniform-width parallel microchannel.Moreover,the two-phase pressure drop in the variable-width parallel microchannels was higher than that in the uniform-width parallel microchannels,with a maximum increase of 61%.关键词
过冷流动沸腾/并联微通道/沸腾传热/传热特性Key words
subcooled flow boiling/parallel microchannel/boiling heat transfer/heat transfer characteristic分类
通用工业技术引用本文复制引用
蔡华宇,方奕栋,卢娣,蒋陈涵..R1233zd(E)在非等宽并联微通道内的流动沸腾传热实验研究[J].制冷学报,2026,47(2):95-102,8.
