Numerical Study on the Mechanism of Enhancing Codensation Heat Transfer for Specially Shaped Fin Tubes

Wang Shiping; Yin Qinghua; Tan Yingke and Dang Songjiu(South China University of Technology; Guangzhou)

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Numerical Study on the Mechanism of Enhancing Codensation Heat Transfer for Specially Shaped Fin Tubes

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- Numerical Study on the Mechanism of Enhancing Codensation Heat Transfer for Specially Shaped Fin Tubes
- CIESC Journal Issue 1, (1989)
- 作者机构：
  
  华南理工大学化学工程研究所,华南理工大学化学工程研究所,华南理工大学化学工程研究所,华南理工大学化学工程研究所 ,广州,广州,广州,广州
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 February 1989，
  
  Published：25 February 1989
- 稿件说明：
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Wang Shiping, Yin Qinghua, Tan Yingke and Dang Songjiu(South China University of Technology, et al. Numerical Study on the Mechanism of Enhancing Codensation Heat Transfer for Specially Shaped Fin Tubes[J]. CIESC Journal, 1989, (1).
DOI：

Wang Shiping, Yin Qinghua, Tan Yingke and Dang Songjiu(South China University of Technology, et al. Numerical Study on the Mechanism of Enhancing Codensation Heat Transfer for Specially Shaped Fin Tubes[J]. CIESC Journal, 1989, (1). DOI：

摘要

本文首次提出用数值方法从微观上研究异形翅片管强化冷凝传热的机理.揭示了:对于不同级构参数的异形翅片管、不同工质、在不同的热流率下、在管的不同周向位置上

表而张力作用和粗糙度促进对流传热作用的效果不同.总而言之

在中等热流率下

R管以二维表面张力作用为主

对于ST管

两者作用相当.

Abstract

A numerical method is propose for studing the condensation mechanism of specially shaped fin tubes

which include the radially ridged fin tube(R. tube) and the saw-tooth shaped fin tube(S. T. Tube). The results show that the effects of surface tension and fin roughness differ with peripheral position

and can be related to the structural parameters of the tube

the properties of the condensate and the magnitude of the heat flux. In general

both surface tension and fin roughness play important roles in condensation heat transfer for the S. T. tube

while two-dimensional surface tension play a leading role for the R. tube.

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