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Prediction of the heat transfer performance of air-cooled condensers for air conditioners. 1. Comparison with typical experimental data.

[In Japanese. / En japonais.]

Author(s) : SASAKI N., MIZUTA Y., SANUKI N.

Type of article: Article

Summary

Average heat transfer coefficients during R410A condensation in three kinds of spirally grooved tubes were theoretically predicted using the calculating tool developed by a R&D project carried out during 1999-2001. The results were compared with the experimental data obtained by the authors. The predicted data almost agreed with the experimental data at operating refrigerant mass velocity of actual air conditioners. The predicted data in the lower refrigerant mass velocity range were higher than the experimental data, because the single phase flow regions existing at both inlet and outlet of actual condensers were not considered in theoretical predictions. On the other hand, since the stratified flow model was applied to the whole range of condensers, the predicted data in the higher refrigerant mass velocity range were lower than the experimental data.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 2005-1809
  • Languages: Japanese
  • Source: Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers - vol. 21 - n. 2
  • Publication date: 2004

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