Environmentally-friendly advanced transcritical CO2 refrigeration system

这项研究计划建立在NSERC资助的先前实验和数值工作的基础上，以调查二氧化碳(CO2)作为自然制冷剂在汽车空调系统中的使用情况，并进一步将其广泛应用于住宅和商业系统。臭氧消耗潜力和全球变暖潜力是衡量制冷剂排放对环境的直接影响的两个既定指标。氢氟烃(HFC)制冷剂曾被认为是可以接受的永久替代流体，但由于它们对气候变化的影响，现在已被列入受管制物质清单。R-134a等具有高全球变暖潜力的制冷剂目前的应用导致二氧化碳作为一种自然产生的制冷剂的复兴。

This research program builds upon prior experimental and numerical work funded by NSERC to investigate the use of carbon dioxide (CO2) as a natural refrigerant in automotive air-conditioning systems in particular, with a further general application to residential and commercial systems. Ozone depletion potential and global warming potential are the two established indicators for the direct environmental impact of the release of refrigerants. The hydrofluorocarbon (HFC) refrigerants, which were once expected to be acceptable permanent replacement fluids, are now on the list of regulated substances due to their impact on climate change. The current application of high global warming potential refrigerants such as R-134a has led to the revival of CO2 as a naturally occurring refrigerant.