Mechanism of Heat Transfer in Dropwise Condensation( I ) Preparation of Alloy Surfaces andHeat Transfer Measurements

宋永吉; 张东昌; 林纪方

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Mechanism of Heat Transfer in Dropwise Condensation( I ) Preparation of Alloy Surfaces andHeat Transfer Measurements

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- Mechanism of Heat Transfer in Dropwise Condensation( I ) Preparation of Alloy Surfaces andHeat Transfer Measurements
- CIESC Journal Issue 6, (1990)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 December 1990，
  
  Published：25 December 1990
- 稿件说明：
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宋永吉, 张东昌, 林纪方. Mechanism of Heat Transfer in Dropwise Condensation( I ) Preparation of Alloy Surfaces andHeat Transfer Measurements[J]. CIESC Journal, 1990, (6).
DOI：

宋永吉, 张东昌, 林纪方. Mechanism of Heat Transfer in Dropwise Condensation( I ) Preparation of Alloy Surfaces andHeat Transfer Measurements[J]. CIESC Journal, 1990, (6). DOI：

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.

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

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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