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Study on the evaporating flow patterns and heat transfers of R22 and R134a in small diameter tubes.

Author(s) : OH H. K., PARK K. W., SON C. H., et al.

Type of article: Article

Summary

Large diameter tubes have been used until comparatively lately. However, small diameter tubes are largely used these days because of their high efficiency in heat transfer and low cost. The study focuses on the experimental research of the flow patterns and heat transfer coefficients during the evaporating process of R22 and R134a in small diameter tubes. The evaporating flow patterns of R22 and R134a were observed in pyrex sight glass tubes with ID 2 and 8 mm, respectively, and heat transfer coefficients were measured in smooth horizontal copper tubes with ID 1.77, 3.36 and 5.35 mm.

Details

  • Original title: Study on the evaporating flow patterns and heat transfers of R22 and R134a in small diameter tubes.
  • Record ID : 2004-2732
  • Languages: English
  • Source: Vestnik Mezdunarodarnoj Akademii Holoda - n. 2
  • Publication date: 2003
  • Document available for consultation in the library of the IIR headquarters only.

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