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Air-conditioning unit using CO2 as refrigerant installed in a bus.

Author(s) : SONNEKALB M., KOEHLER J.

Summary

A prototype air-conditioning unit for buses was built and tested. The unit uses carbon dioxide as the refrigerant. The size and weight of the prototype unit are equivalent to those of a conventional mass-produced bus air-conditioning unit. The cooldown tests with a bus show that the unit maintains acceptable bus interior temperatures. In comparison with a typical conventional HFC-134a unit, the prototype had about 10% less capacity and was about 25% less efficient. Investigations of the compressor and heat exchangers indicate that there is significant potential for improvement of both capacity and efficiency.

Details

  • Original title: Air-conditioning unit using CO2 as refrigerant installed in a bus.
  • Record ID : 1997-3558
  • Languages: English
  • Source: International Conference on Ozone Protection Technologies. Conference proceedings.
  • Publication date: 1996/10/21
  • Document available for consultation in the library of the IIR headquarters only.

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