Character analysis of refrigerant in AC and predicted of the development of screw compressor.

The comparison is made from 6 aspects to analysis the character difference between HCFC\HFC\HFO in this article, and it predict the development of screw compressor in AC thought the comparison of refrigerant. The result shown, the screw compressor exist is not suitable for the application of low GWP HFO's refrigerant, we need develop new compressor according the character of low GWP HFO's refrigerant. In recent years, with the continuous process of global industrialization, the global climate continues warming, and the global ecological environment has been a huge impact. After the signing of the Paris agreement on climate change, countries have begun to develop a high GWP refrigerant reduction plan, for controlling the total amount of greenhouse gas emissions in order to alleviate global warming. Under this condition, a number of refrigerant manufacturers have introduced a variety of low GWP refrigerants, and the characteristics of those refrigerants are different. In this paper, 7 kinds of refrigerants used in A.C was analyzed, and according to the characteristics of low GWP refrigerant, we try to predict the development of screw compressors used in A.C. This result used for leading the design and development direction of screw compressor used in A.C in the future.