A two-dimensional fin efficiency analysis of combined heat and mass transfer in elliptic fins

Chien Nan Lin, Jiin Yuh Jang

研究成果: Article同行評審

57 引文 斯高帕斯(Scopus)

摘要

This paper presents a two-dimensional analysis for the efficiency of an elliptic fin under the dry, partially wet and fully wet conditions of a range of value for axis ratios, Biot numbers, and air humidifies. It is shown that the fin efficiencies increase as the axis ratio Ar is increased. For a given axis ratio Ar, the fin efficiency decreases as the fin height l* or Biot number is increased. The conventional 1-D sector method overestimates the fin efficiency resulting in increasing error as the axis ratio Ar is increased. In addition, using experimentally determined heat transfer coefficients, it is found that both the fully dry and wet elliptic fin efficiencies are up to 4-8% greater than the corresponding circular fin efficiencies having the same perimeter.

原文English
頁(從 - 到)3839-3847
頁數9
期刊International Journal of Heat and Mass Transfer
45
發行號18
DOIs
出版狀態Published - 2002 六月 17

All Science Journal Classification (ASJC) codes

  • 凝聚態物理學
  • 機械工業
  • 流體流動和轉移過程

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