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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: p 495-505
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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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Indexing
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Themes:
CO2;
Mobile air conditioning - Keywords: Supercritical state; Car; Design; Control (automatic); Pressure; Thermodynamic cycle; Air conditioning; CO2
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