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Two-phase pressure drop of R22 and R410A in a consecutive U-type wavy tube.

Author(s) : CHEN I. Y., HU R., SHYU H. J., et al.

Summary

The influence of return bend on the frictional performance of R410A and R22 in a 5-mm diameter wavy tube was examined in the study. For the single-phase results, the existing correlations give fairly good agreements with the data. Conversely, the existing two-phase correlations of the return bend fail to predict the data. The frictional two-phase multiplier in U bend can be fairly correlated by using the Chisholm correlation. By introducing the Martinelly parameter to the Chisholm correlation, a new correlation could be obtained to describe the data if more experimental data are available.

Details

  • Original title: Two-phase pressure drop of R22 and R410A in a consecutive U-type wavy tube.
  • Record ID : 2006-1422
  • Languages: English
  • Source: Green breeze from Asia: frontiers of refrigerants, heat transfer and system.. ACRA-2002. Proceedings of the Asian conference on refrigeration and air conditioning.
  • Publication date: 2002/12/04

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