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An investigation of the flow characteristics of multicomponent refrigerants condensation in pipe minichannels.

Badania charakterystyk przeplywowych skraplania czynników wieloskladnikowych w minikanalach rurowych.

Author(s) : BOHDAL T., SIKORA M., WIDOMSKA K.

Type of article: Article

Summary

In article the results of HFC - R134a, R404A, R407C and R410A refrigerants condensation experimental studies of average and local pressure drops in pipe minichannels with an internal diameter d = 0.31 ÷ 3.30 mm is presented. The effect of mass flux density G change, the vapor quality x, the saturation temperature Ts and the inner diameter d of minichannel changes on the course of flow characteristics are described. The experimental results are compared with calculations results by the correlation of other authors. It was found a large range of discrepancies. A new experimental correlation for calculating local values of the flow resistance of the tested mixtures refrigerants give satisfactory results of the comparison in the range of ± 25%.

Details

  • Original title: Badania charakterystyk przeplywowych skraplania czynników wieloskladnikowych w minikanalach rurowych.
  • Record ID : 30020411
  • Languages: Polish
  • Source: Chlodnictwo - vol. 50 - n. 7-8
  • Publication date: 2015/07
  • DOI: http://dx.doi.org/10.15199/8.2015.7-8.3

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