Efficiency of heat and mass transfer in fully wet porous fins: Exponential fins versus straight fins


Turkyilmazoglu M.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, cilt.46, ss.158-164, 2014 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 46
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.ijrefrig.2014.04.011
  • Dergi Adı: INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
  • Sayfa Sayıları: ss.158-164

Özet

The combined heat and mass transfer mechanisms owing to the temperature and humidity ratio differences and their influence on the efficiency of different exponential type porous fin configurations are analyzed in this paper. The closed-form temperature solutions for an exponential impermeable dry fin as obtained in an earlier publication (Turkyilmazoglu, 2012) are extended here to the case where the surface of the fin is fully wet and porous. A comparison with the traditional straight porous fins proves that the fin tip temperature and efficiency of the exponential porous wet fins are much better than those of corresponding to the straight porous wet fins. (C) 2014 Elsevier Ltd and IIR. All rights reserved.