摘要
CO2作为一种天然环保制冷工质,已成为汽车空调系统制冷剂替代的首选。以CO2为制冷剂的制冷系统要求所采用的润滑油与CO2有良好的互溶性和低温流动性,在高温下能保持合适的粘度和化学稳定性,吸湿性弱,抗水解稳定性强,并且对系统制冷性能的影响应尽可能小。PAG,POE,PVE和AB类等合成润滑油以及矿物油都有可能用于CO2汽车空调系统,其中PAG和POE最受关注。
As a natural working fluid, CO2 has been the premier alternate refrigerant for mobile air conditioning system. The selected lubricant should be well miscible with CO2, have good fluidity at low temperatures and suitable viscosity under supercritical condition, low hygroscopicity, thermal and chemical stability; in addition, it should have as little influence on the performance of the refrigeration system as possible. Synthetical oils such as PAG, POE, PVE and AB as well as mineral oil all possibly can be used, while PAG and POE are the most concerned.
出处
《能源技术》
2005年第5期185-188,共4页
Energy Technology
基金
上海市青年科技启明星项目(03QF14030)资助
