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An improved two-phase pressure drop correlation for 180° return bends.

Author(s) : DOMANSKI P. A., HERMES C. J. L.

Summary

A new correlation for two-phase flow pressure drop in 180° return bends is proposed based on a total of 241 experimental data points for R-22 and R-410A. The data span smooth tubes with inner diameters from 3.25 to 11.63 mm, bend radii from 6.35 to 37.25 mm, and curvature ratios from 2.32 to 8.15. The correlation predicts all data with a mean deviation of 15.7%, and 75% of the data fall within 25% error bands.

Details

  • Original title: An improved two-phase pressure drop correlation for 180° return bends.
  • Record ID : 2007-0085
  • Languages: English
  • Source: ACRA-2006. Proceedings of the 3rd Asian conference on refrigeration and air conditioning.
  • Publication date: 2006/05/21

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