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An automobile HVAC system with CO2 as the refrigerant.

Author(s) : HAFNER A., PETTERSEN J., SKAUGEN G., NEKSÅ P.

Summary

A reversible transcritical CO2 system with gliding temperature heat rejection can give high air delivery temperature and rapid defogging or defrosting of the windows. Energy recovery from the passenger-compartment exhaust air can be used to improve the overall efficiency of the system. The compactness of a CO2 system is especially important to obtain a low total weight of the heating and cooling circuit. Another possible application for this type of system is in electric cars. Simulated performance results indicate that the CO2 system is a competitive total solution for modern vehicles, with high COP and sufficient heating and cooling capacity.

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Pages: p 335-345

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Details

  • Original title: An automobile HVAC system with CO2 as the refrigerant.
  • Record ID : 1999-3190
  • Languages: English
  • Subject: General information
  • Source: Natural Refrigerants, Energy Efficiency, Cost and Safety. Natural Working Fluids '98. IIR-Gustav Lorentzen Conference.
  • Publication date: 1998/06/02
  • Document available for consultation in the library of the IIR headquarters only.

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