Journal of Zhejiang University SCIENCE
(ISSN 1009-3095, Monthly)
2003   Vol. 4   No. 3   p.305-308

System design and analysis of the trans-critical carbon-dioxide automotive air-conditioning system

MU Jing-yang(ľ°Ñô)(Institute of Refrigeration, Shanghai Jiaotong University, Shanghai 200030, China)
CHEN Jiang-ping(³Â½­Æ½)(Institute of Refrigeration, Shanghai Jiaotong University, Shanghai 200030, China)
CHEN Zhi-jiu(³ÂÖ¥¾Ã)(Institute of Refrigeration, Shanghai Jiaotong University, Shanghai 200030, China)

Abstract:As an environmentally harmless and feasible alternate refrigerant, CO2 has attracted worldwide attention, especially in the area of automobile air-conditioning (AAC). The thermal property of CO2 and its trans-critical refrigeration cycle is very different from that of the traditional CFC or HCFC system. The detailed process of CO2 system thermal cycle design and optimization is described in this paper. System prototype and performance test bench were developed to analyze the performance of the CO2 AAC system.
Keywords:Automotive air-conditioning(AAC), Carbon-dioxide, Trans-critical cycle.

CLC Number:TH45;TB652 Document ID:A

Author Resume:MU Jing-yang,E-mail: jim.mu@aiapo.com

References:

[1]Jurgen, S. and Horst, K., 1998. Efficiency of the indicated process of CO2-compressors. Int J. Refrig, 21(3):194-201.
[2]Lorentzen, G., 1995. The use of natural refrigerants: a complete solution to the CFC/HCFC predicament. Int. Journal of Refrigeraton, 18(3): 190.
[3]Pettersen, J. and Lorentzen, G., 1993. A new efficient and environmentally benign system for automobile air conditioning. SAE Trans,102(5):135-145.
[4]Torahide, T., 2000. Development of Carbon Dioxide (CO2) Applied Refrigeration System. SAE Automotive Alternate Refrigerant Systems Symposium.
[5]Yin, J.M., Pettersen, J., McEnaney, R. and Beaver, A.,1999. TEWI Comparison of R744 and R134a Systems for Mobile Air Conditioning. SAE Technical Paper Series, 1999-01-0582.


Manuscript Received:2002 Aug. 5

Manuscript Revised:2002 Oct. 8

Published:2003 June 1