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Effects of tube diameter and tubeside fin geometry on the heat transfer performance of air-cooled condensers.

[In Japanese. / En japonais.]

Author(s) : WANG H. S., HONDA H.

Type of article: Article

Summary

Extensive numerical calculations of overall heat transfer from R410A flowing inside a horizontal microfin tube to ambient air were conducted for an air-cooled condenser operating under typical conditions. The tubeside heat transfer coefficient was calculated by applying a modified stratified flow model developed by Wang et al. The numerical results show that the effects of tube diameter, fin height, fin number and helix angle of groove are significant, whereas those of the width of flat portion at the fin tip, the radius of round corner at the fin tip and the fin half tip angle are small.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 2003-0648
  • Languages: Japanese
  • Source: Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers - vol. 18 - n. 2
  • Publication date: 2001
  • Document available for consultation in the library of the IIR headquarters only.

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