| 滴状冷凝传热机理的研究 (Ⅰ)传热表面的制备及传热性能实验 |
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| 引用本文： | 宋永吉 张东昌. 滴状冷凝传热机理的研究 (Ⅰ)传热表面的制备及传热性能实验[J]. 化工学报, 1990, 41(6): 670-675 |
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| 作者姓名： | 宋永吉 张东昌 |
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| 作者单位： | 大连理工大学化学工程研究所,大连理工大学化学工程研究所,大连理工大学化学工程研究所 辽宁,大连,辽宁,大连,辽宁,大连 |
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| 摘 要： | 采用离子注入技术对紫铜表面进行处理,在几种表面上都获得了稳定的滴状冷凝.对各种表面进行了冷凝传热性能实验,并对实验结果进行了分析讨论.
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| 关 键 词： | 滴状冷凝 换热 冷凝传热 传热 |
Mechanism of Heat Transfer in Dropwise Condensation( I ) Preparation of Alloy Surfaces andHeat Transfer Measurements |
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| Song Yongji,Zhang Dongchang and Lin JifangResearch Institute of Chemical Engineering,Dalian University of Technology,Liaoning,Dalian. Mechanism of Heat Transfer in Dropwise Condensation( I ) Preparation of Alloy Surfaces andHeat Transfer Measurements[J]. Journal of Chemical Industry and Engineering(China), 1990, 41(6): 670-675 |
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| Authors: | Song Yongji Zhang Dongchang Lin JifangResearch Institute of Chemical Engineering Dalian University of Technology Liaoning Dalian |
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| Abstract: | The experiments on the mechanism of dropwise condensation were conducted on copper alloy surfaces with steam. These surfaces were processed with ion-implantation technique. The implanted element were N, Ar, He and O.Steady dropwise condensation was obtained for all the surfaces.The results showed that heat transfer efficiency of Cu-N surface was better than the others. Compared with filmwise condensation the heat transfer coefficient of dropwise condensation increased by 15-20 times and heat flux increased by 3-4 times. A discussion on the causes of heat transfer improvement was given. |
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