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Contact resistance in air-cooled plate fin-tube air-conditioning condensers.

Author(s) : CRITOPH R. E., HOLLAND M. K., TURNER L.

Type of article: Article, IJR article

Summary

Test equipment and procedures are developed to measure the heat transfer performance of an industry-standard wavy plate fin-tube condenser, and to compare it with alternative designs. Two test rigs are employed: one uses direct electric heating, and the other uses an R22 thermosyphon. Analysis reveals that the standard production heat exchanger suffers from excessive fin-tube resistance. This is confirmed by sectioning and microscopic examination. Seven different designs are compared at the same Reynolds number. The results are analysed to isolate the air-side heat transfer coefficient.

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Pages: 400-406

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Details

  • Original title: Contact resistance in air-cooled plate fin-tube air-conditioning condensers.
  • Record ID : 1998-0838
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 19 - n. 6
  • Publication date: 1996/07

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