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Evaluation of microchannel condenser characteristics by numerical simulation.

Author(s) : YIN X. W., WANG W., PATNAIK V., et al.

Type of article: Article, IJR article

Summary

This paper presents the development of a finite-volume-based numerical condenser model that considers important factors such as non-uniform air temperature and velocity at the front, fin conduction, refrigerant-side maldistribution caused by pressure balance between tubes, and air-side distribution for multislabs. Air-side and refrigerant-side microscale heat transfer and pressure drop correlations are carefully compared. The model results match well with lab test results for one-slab and two-slab microchannel heat exchangers on heat transfer and pressure drop. Several simulations are conducted to determine the impact of return air temperature, tube wall temperature, and non-uniform refrigerant flow rate. In addition, optimization results are analyzed by changing the number of flat tubes in each pass for both types of heat exchangers.

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Pages: 126-141

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Details

  • Original title: Evaluation of microchannel condenser characteristics by numerical simulation.
  • Record ID : 30014575
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 54
  • Publication date: 2015/06

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