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Operation of trans-critical CO2 vapour compression circuits in vehicle air conditioning.

Author(s) : PETTERSEN J., SKAUGEN G.

Summary

The influence of varying high-side pressure was investigated through simplified cycle analysis and by simulation and laboratory testing of a prototype circuit. Results from this work are presented and discussed, showing the effect of varying operating conditions, e.g., heat rejection temperature and evaporating temperature, on optimum high-side pressure and capacity. On this basis, favourable high-side pressure control strategies are suggested. The effects of internal heat exchange and realistic component characteristics are discussed, and a simple throttling valve concept is proposed.

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Pages: 11 p.

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Details

  • Original title: Operation of trans-critical CO2 vapour compression circuits in vehicle air conditioning.
  • Record ID : 1995-2503
  • Languages: English
  • Source: New Applications of Natural Working Fluids in Refrigeration and Air Conditioning
  • Publication date: 1994/05/10
  • Document available for consultation in the library of the IIR headquarters only.

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