Three Dimensional Numerical Simulation of Convection-Condensation of Vapor with High Concentration Air in Tube with Inserts

崔永章; 田茂诚; 张林华; 李广鹏; 朱建宾

doi:10.1016/S1004-9541(11)60236-X

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Three Dimensional Numerical Simulation of Convection-Condensation of Vapor with High Concentration Air in Tube with Inserts

Updated：2026-01-06

- Three Dimensional Numerical Simulation of Convection-Condensation of Vapor with High Concentration Air in Tube with Inserts
- Chinese Journal of Chemical Engineering Vol. 20, Issue 4, Pages: 686-692(2012)
- Affiliations：
  
  1. Key Laboratory of Building Energy Conservation Technique of Shandong Province, School of Thermal Engineer-ing, Shandong Jianzhu University,Jinan,China,250101
  2. School of Energy & Power Engineering, Shandong University,Jinan,China,250061
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(11)60236-X
  CLC：
- Published：2012
- Accepted：
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CUI Yongzhang, TIAN Maocheng, ZHANG Linhua, LI Guangpeng, ZHU Jianbin. Three Dimensional Numerical Simulation of Convection-Condensation of Vapor with High Concentration Air in Tube with Inserts[J]. Chin.J.Chem.Eng., 2012, 20(4): 686-692.
DOI：

CUI Yongzhang, TIAN Maocheng, ZHANG Linhua, LI Guangpeng, ZHU Jianbin. Three Dimensional Numerical Simulation of Convection-Condensation of Vapor with High Concentration Air in Tube with Inserts[J]. Chin.J.Chem.Eng., 2012, 20(4): 686-692. DOI： 10.1016/S1004-9541(11)60236-X.

摘要

Abstract

A three-dimensional numerical model is presented for studying the convection-condensation of mixture with vapor in a tube with edgefold-twisted-tape inserts under transition flow.According to the diffusion layer theory and laminar species transport

a condensation model with user defined function is proposed and compared with heat and mass transfer analogy and experimental test.With the condensation model

the influences of gap width and operating parameters on thermal-hydrodynamics performance are simulated.As the gap width increases

convection and condensation heat transfer increase initially and then decrease

while convection heat transfer increases sharply and then decreases slightly.Increasing vapor fraction has a significant effect on condensation heat transfer but it has little effect on convective heat transfer.With the increase of inner wall temperature both convection and condensation heat transfer all decrease and the ratio of condensation to total heat decrease dramatically.Increases inlet temperature mainly affects convection heat transfer.

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