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Design and analysis of multiple parallel-pass condensers.

Author(s) : YE L., TONG M. W., ZENG X.

Type of article: Article, IJR article

Summary

This paper describes and analyzes a novel design of multiple parallel-pass (MPP) microchannel tube condenser and its applications to automotive A/C systems. A flow distributor concept is introduced in MPP condenser in order to enable parallel flow arrangement in adjacent flow paths. Throughout analysis of two-phase flow and heat transfer processes in MPP condenser, a two-phase zone enlargement technique is developed to enhance condensation heat transfer and reduce pressure drop. Visual observation indicates a more uniform refrigerant quality entering the next cooling pass can be achieved in MPP condenser because superheated vapour through a pass-through hole on flow distributor directly injects into the separated liquid-vapour zone in a header tube. Performance test results show MPP condenser is able to improve heat transfer rate as high as 9.5% while its refrigerant mass flow increases 13.34% when comparing to a benchmark PF condenser.

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Pages: 1153-1161

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Details

  • Original title: Design and analysis of multiple parallel-pass condensers.
  • Record ID : 2009-1474
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 32 - n. 6
  • Publication date: 2009/09

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