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Development of a transcritical R-744 bottle cooler.

Author(s) : CECCHINATO L., CORRADI M., SCHIOCHET G., et al.

Summary

This paper presents a project to develop a R-744 commercial single door bottle cooler that is cost competitive and matches the performance of typical cost optimised R-404A and R-134a systems. A prototype was developed with components easily available on the market; this system consists of a single stage reciprocating hermetic compressor, conventional fin and tube evaporator, wire-on-tube gas cooler and a capillary tube throttling device, externally brazed to the suction line. A CO2 compressor was tested and the energy efficiency of the system was compared with the one of the same appliance employing conventional technology and traditional refrigerants. The energy performance of the CO2 system under steady-state and cyclic operations was investigated and compared with the one of the conventional refrigerants. Guidelines for optimising the design of the critical components are illustrated.

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Pages: ICR07-B2-1042

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Details

  • Original title: Development of a transcritical R-744 bottle cooler.
  • Record ID : 2007-2655
  • Languages: English
  • Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Publication date: 2007/08/21

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