电极直径对EHD强化垂直管内凝结换热的影响

WAN Jinqing; LI Ruiyang; YU Hongling

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电极直径对EHD强化垂直管内凝结换热的影响

更新时间：2025-12-10

- 电极直径对EHD强化垂直管内凝结换热的影响
- CIESC Journal Issue 9, (2006)
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- Online First：25 September 2006，
  
  Published：25 September 2006
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WAN Jinqing, LI Ruiyang, YU Hongling. 电极直径对EHD强化垂直管内凝结换热的影响[J]. CIESC Journal, 2006, (9).
DOI：

WAN Jinqing, LI Ruiyang, YU Hongling. 电极直径对EHD强化垂直管内凝结换热的影响[J]. CIESC Journal, 2006, (9). DOI：

摘要

基于EHD强化管内凝结换热的理论分析，对5根直径不同的电极进行了垂直管内EHD强化凝结换热实验研究.结果表明，相同工况条件下，电极直径越大液膜相对减薄率越大，液膜减薄的起始电压越小.液膜相对减薄率随着电压的增加而增加.同时发现，液膜相对减薄率大并不意味着强化系数大.

Abstract

Based on the theoretical analysis

the electrohydrodynamics (EHD) enhancement of condensation heat transfer inside vertical tube for five representative electrodes were investigated.The experimental results showed that under the same working condition the bigger the electrode diameter

the bigger the relative reduction rate of the condensation film thickness and the lower the beginning voltage for the thickness reduction of the condensation film.The relative reduction rate of the thickness increased with increasing voltage.Furthermore

the high value of the relative reduction rate of the condensation film thickness did not certainly accompany the high value of the enhancement factor.

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