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Condensation of R134a vapour over single horizontal integral-fin tubes: effect of fin height.

Author(s) : KUMAR R., GUPTA A., VISHVAKARMA S.

Type of article: Article, IJR article

Summary

An experimental investigation has been carried out to study the condensation of R134 vapour over five single horizontal circular integral-fin tubes of 472 fpm fin density, 417 mm length and different fin heights of 0.45, 1.14, 1.47, 1.92 and 2.40 mm. The circular fins are rectangular in shape and the fin thickness of all tubes is 0.70 mm. The tube with the fin height of 0.45 mm has given the highest enhancement in heat transfer coefficient, h, of the order of 3.18 in comparison to that predicted by the Nusselt model for a plain tube.

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Pages: 428-435

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Details

  • Original title: Condensation of R134a vapour over single horizontal integral-fin tubes: effect of fin height.
  • Record ID : 2005-1635
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 28 - n. 3
  • Publication date: 2005/05

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