GLOBAL ENVIRONMENTAL AND ECONOMIC BENEFITS OF INTRODUCING R744 MOBILE AIR CONDITIONING
Life Cycle Climate Performance (LCCP) of mobile air-conditioning (MAC) systems was estimated for different global locations, including Asia areas where the car market is growing very fast. Furthermore, A/C systems in these markets must be considered as a key feature to improve drivers’ comfort and safety.An LCCP calculation tool was applied. All input data used are documented.Test data from SAE AR CRP1 (from phase 1 in 2001 till phase 2 in 2003 Hrnak 2002), BEHR (Schafer, B. & Weinbrenner M. 2007) and Visteon (Wieschollek, F & Heckt, R. 2007) have reconfirmed that the COP is no argument against R744 in MAC’s. Fuel use of R744 systems was significantly lower than with HFC-134a with respect to the selected reference, even in the warm climates considered in the present comparison. Another benefit of R744 is the potential for compact system design and the good properties R744 offers for using the system as a heat pump for supplementary heating in vehicles of the future.The estimated annual fuel saving potential and reduction of GHG emissions per 1.000.000 cars by introducing R744 MAC systems instead of continuing with HFC 134a units in Shanghai 18.000 m3 of petrol and 172.000 tonnes of GHG emissionsR744 systems represent the sustainable alternative for mobile AC systems along the regulatory steps under Kyoto Protocol as initiated in EU. R744 can be proposed as the global MAC refrigerant for the future with the highest confidence regarding safety, fuel efficiency, flexibility regarding future developments (heat pumping units) and system improvement potential (expander, ejector, etc.)
A.HAFNER P.NEKS(A)
SINTEF Energy Research, Norway
国际会议
The 22nd International Congress of Refrigeration(第22届国际制冷大会)
北京
英文
2007-08-21（万方平台首次上网日期，不代表论文的发表时间）