Foreground forecast of substituting HFCs with low GWP unsaturated fluorinated olefins

American Dr J S Brown, et al present a new method to easily and quickly predict the thermodynamic characteristic and performance of an alternative refrigerant with only its normal boiling point temperature and molecular structure known, demonstrate the error and effectiveness of this method, and analyse thermodynamic characteristics of eight fluorinated propylene isomers and specific applications of R1234yf and R1234ze(Z). Provides a summarization of the related research achievements for domestic colleagues to understand and use for reference.