本书着重叙述了新工质HCFC-123和HFC-134a的热物理性质,热力性质计算式,以及饱和状态和过热状态下的热力性质。为了方便工程应用,本书提供了2开版面的工质热力性质压-焓图。考虑到R11,R22和NH3等目前常用工质在今后几年或更长时间内仍将被广泛应用,本书亦提供了这些工质的热力性质表 This book focuses on the thermophysical, thermodynamic properties of the new refrigerants HCFC-123 and HFC-134a, as well as the thermal properties under saturated and overheated conditions. In order to facilitate the application of the project, the book provides 2 open version of the working medium heat pressure nature - enthalpy diagram. Taking into account the R11, R22 and NH3 and other commonly used working fluid in the next few years or more will still be widely used, the book also provides the thermal properties of these working fluid table