Performance Analysis and Numerical Simulation of EvaporativeCondenser with Special—-shaped Flat Tube
[1]WANG Dingbiao,WANG Fangfang,Zhou Junjie.Performance Analysis and Numerical Simulation of EvaporativeCondenser with Special—-shaped Flat Tube[J].Journal of Zhengzhou University (Engineering Science),2010,31(02):67-.
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
31
Number of periods:
2010 No.02
Page number:
67-
Column:
Public date:
2010-02-02
- Title:
- Performance Analysis and Numerical Simulation of EvaporativeCondenser with Special—-shaped Flat Tube
- CLC:
- -
- DOI:
- -
- Abstract:
- Considering the shortages of current used tube in the evaporative condenser such as circular tube，O—val tube and bullet tube，the paper designed a new kind of tube type called special—shaped fiat tube withgood performance．By using the FLUENT software，a numerical simulation research on the forced convectionair flow of 4 kinds of tube bundles which were circular tube，oval tube，bullet tube and special shaped fiattube WaS conducted．The mathematical model of the tube bundle flow field was established．Our implementa—tion incorporated a SIMPLE—based semi—implicit solution algorithm that was applied to iterating calculation．Inlet velocity from 1．5 to 3．9 m／s was calculated separately．The data of simulation was processed by Tecplot10，which provided a direct illustration of the velocity，pressure and temperature fields of the flowing air in thetube bundles．The relationship curve of the pressure changing with the air velocity was also presented．The re—suh demonstrated that comparing with the other 3 tube types，the average pressure drop of the new tube typewas 30％．21％and 15％smaller and the average air temperature in the outlet cross section was higher．
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Last Update:
1900-01-01
