摘要
R744作为一种天然工质 ,是热泵系统中最有潜力的替代工质之一。近 1 0年来 ,美国、欧洲和日本等发达国家和地区对R744热泵系统进行了大量研究 ,并取得了一些突破性研究成果。介绍了R744热泵样机及其压缩机、换热器。
As a natural fluid, R744 is an attractive alternative to the synthetic fluids in heat pump systems. Extensive research and development work on R744 heat pump technology have been carried out in the last decade. Presents research status of R744 heat pump prototypes and other main components such as compressors, heat exchangers and expansion valves.
出处
《暖通空调》
北大核心
2002年第1期43-46,共4页
Heating Ventilating & Air Conditioning
关键词
R744
热泵
压缩机
换热器
膨胀阀
R744, heat pump, compressor, heat exchanger, expansion valve