Design optimization of air-cooled CO2 gas coolers for commercial refrigeration applications.

Number: pap. F15

Author(s) : ZHA S., JIA S.

Summary

Design optimization of a round-tube-plate-fin type CO2 gas cooler is presented in this paper for commercial refrigeration applications. Based on the total heat rejection requirement for a 98 kW cooling capacity system at a design point, a gas cooler with certain heat transfer surface area can be determined for a chosen approach temperature. Coil pressure drop is an outcome of a design and varies with the circuiting arrangement. A parametric study was conducted to study the impact of the coil structural change on system energy efficiency using coil circuiting, i.e. coil pressure drop as a design parameter. The study showed that there was an optimal pressure drop for gas cooler designs that provided maximum system efficiency while meeting the required performance.

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Pages: 6

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Details

  • Original title: Design optimization of air-cooled CO2 gas coolers for commercial refrigeration applications.
  • Record ID : 30022107
  • Languages: English
  • Source: 8th international conference on compressors and refrigeration, 2017.
  • Publication date: 2017/07/20

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