Experimental Study on Condensation Heat Transfer Characteristics inside an Inclined Wave-Finned Flat Tube of Direct Air-Cooling System - Details

Author：

Wang, Haitao (Wang, Haitao.) | Tao, Tao (Tao, Tao.) | Mei, Xuesong (Mei, Xuesong.) (Scholars：梅雪松) | Wang, Haijun (Wang, Haijun.) | Gu, Hongfang (Gu, Hongfang.)

Indexed by：

EI SCIE CSCD Engineering Village

Abstract：

In　this　paper,　the　condensation　heat　transfer　characteristics　of　parallel　flow　and　counter　flow　inside　an　inclined　wave-finned　flat　tube　is　investigated　experimentally.　The　condensation　heat　transfer　coefficients　are　analyzed　based　on　the　experimental　results.　Results　of　experiments　show　that　condensation　heat　transfer　coefficient　decreases　as　the　temperature　difference　Δt=ts—tw　increases　and　mass　flow　rate　decreases.　The　parallel　flow　has　a　similar　development　with　the　counter　flow,　and　the　condensation　heat　transfer　coefficient　of　counter　flow　is　less　than　that　of　parallel　flow　under　the　same　air　cooling　conditions.　In　addition,　condensation　heat　transfer　coefficient　correlations　are　also　obtained　under　experimental　ranges.　The　calculations　agree　well　with　the　measured　data　and　the　agreement　is　seen　to　be　within　±4%　for　the　parallel　flow　and　±5%　for　the　counter　flow.　©　2020,　Science　Press,　Institute　of　Engineering　Thermophysics,　CAS　and　Springer-Verlag　GmbH　Germany,　part　of　Springer　Nature.

Keyword：

Condensation Heat transfer coefficients Parallel flow

Author Community：

[ 1 ] [Wang, Haitao]State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an; 710049, China
[ 2 ] [Wang, Haitao]Shaanxi Key Laboratory of Intelligent Robots, School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an; 710049, China
[ 3 ] [Tao, Tao]State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an; 710049, China
[ 4 ] [Tao, Tao]Shaanxi Key Laboratory of Intelligent Robots, School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an; 710049, China
[ 5 ] [Mei, Xuesong]State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an; 710049, China
[ 6 ] [Mei, Xuesong]Shaanxi Key Laboratory of Intelligent Robots, School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an; 710049, China
[ 7 ] [Wang, Haijun]State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an; 710049, China
[ 8 ] [Gu, Hongfang]State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an; 710049, China

Reprint Author's Address：

[Wang, Haitao]State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an; 710049, China;;[Wang, Haitao]Shaanxi Key Laboratory of Intelligent Robots, School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an; 710049, China;;

Email：

wanghaitao@mail.xjtu.edu.cnemailtaotao@mail.xjtu.edu.cn) Tao, Tao(taotao@mail.xjtu.edu.cn

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