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R1233zd(E)在非等宽并联微通道内的流动沸腾换热实验研究
Experimental investigation on flow boiling heat transfer of R1233zd(E) in a variable width parallel microchannel
- 默认刊物名称 2025年
- 作者机构：
1.上海理工大学能源与动力工程学院,上海市上海市200093
2.上海市动力工程多相流动与传热重点实验室(上海理工大学),上海市上海市200093
- 作者简介：
[ "方奕栋，男，硕士生导师，上海理工大学能源与动力工程学院，13381772908，yidongfang@ usst. edu. cn。研究方向：电子器件高效散热、制冷剂强化传热质。" ]
- 基金信息：
DOI：
中图分类号： TB61+1;TK124收稿日期：2024-11-07，
修回日期：2024-11-27，
录用日期：2024-12-11，
- 稿件说明：
移动端阅览
蔡华宇, 方奕栋, 卢娣, 等. R1233zd(E)在非等宽并联微通道内的流动沸腾换热实验研究[J/OL]. 默认刊物名称, 2025.
CAI Huayu, FANG Yidong, LU Di, et al. Experimental investigation on flow boiling heat transfer of R1233zd(E) in a variable width parallel microchannel[J/OL]. Moren journal, 2025.
摘要
本文对R1233zd(E)在等宽并联微通道和非等宽并联微通道内过冷流动沸腾换热进行了实验研究，分析对比两种通道结构在不同工况下的流动沸腾曲线、换热系数和压降变化规律。实验结果表明：在相同的热流密度下，非等宽并联微通道中的核态沸腾的起始（ONB）早于等宽并联微通道，并且可以保持较低的壁温。此外，非等宽并联微通道的整体换热性能更优越。在高热流密度（
q
eff
=150 kW/m
2
）下，非等宽并联微通道的换热系数（HTC）比等宽并联微通道增加了30%~50%，最大可达60%。然而由于特殊结构引起的摩擦损失，非等宽并联微通道的两相压降一般大于等宽并联微通道。
Abstract
In this study
the subcooled flow boiling heat transfer of R1233zd(E) in uniform width microchannel and variable width parallel microchannel was experimentally investigated. The flow boiling curves
heat transfer coefficients and pressure drop of the two channel structures under different working conditions were analyzed and compared. The experimental results showed that onset of nucleate boiling (ONB) occured earlier in variable width microchannel than in uniform width parallel microchannel at the same heat flux and can maintain lower wall temperature. In addition
the overall heat transfer characteristic of variable width microchannel is better than that of uniform width microchannel. At high heat flux of
q
eff
=150 kW/m
2
the heat transfer coefficient (HTC) of the variable width microchannel is increased by 30%~50% compared with uniform width microchannel
and the maximum value can reach 60%. However
it was worth noting that due to the friction loss caused by the special structure
the two-phase pressure drop of the variable width microchannel was generally greater than that of the uniform width microchannel.
关键词
Keywords
references
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