Effect of geometrical parameters on heat transfer and pressure drop characteristics of plate fin and tube heat exchangers


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Erek A., Ozerdem B., Bilir L., Ilken Z.

APPLIED THERMAL ENGINEERING, cilt.25, ss.2421-2431, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 25
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.applthermaleng.2004.12.019
  • Dergi Adı: APPLIED THERMAL ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2421-2431
  • Anahtar Kelimeler: plate fin, heat exchanger, numerical modeling, heat transfer, pressure drop, FRICTION CHARACTERISTICS, ONE-ROW, PERFORMANCE, SECTIONS
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

In this study, the influences of the changes in fin geometry on heat transfer and pressure drop of a plate fin and tube heat exchanger are investigated, numerically. A computational fluid dynamics (CFD) program called Fluent is used in the analysis. The segment of one tenth of fin is used in the modeling, due to symmetrical condition. The results of heat transfer, static, and total pressure drop values of ten different fins are tabulated and the normalized values of them are, also, given for the comparison of the models. The distance between fins is found to have a considerable effect on pressure drop. It is observed that placing the fin tube at downstream region affects heat transfer positively. Another important result of the study is that increasing ellipticity of the fin tube increases the heat transfer while it, also, results in an important reduction in pressure drop. (c) 2005 Elsevier Ltd. All rights reserved.