将非共沸混合物应用于制冷机，通过控制循环混合物的成分，为控制机器性能提供了新的自由度。呈现这种机器在不同混合物成分下运行的可能热力学循环，需要以制冷剂混合物成分为变量，绘制适当的热力学图表。本文给出了非共沸混合物R13B1/R152a的热力学图。开发的图表（压力焓、温度熵和焓组成）虽然为了清晰显示有限的数据，但为理解不同组成的蒸汽压缩循环提供了重要的见解。 本文解释了一个能同时描述液相和汽相的状态方程，以及用于测定非共沸混合物热力学性质的性质算法和迭代方案。引文:研讨会，ASHRAE交易，1985年，第91卷，pt。1B芝加哥

Application of a nonazeotropic mixture to a refrigeration machine offers a new degree of freedom in controlling machine performance by control of circulating mixture composition. Presenting possible thermodynamic cycles of such a machine operating with different mixture compositions requires developing appropriate thermodynamic charts with refrigerant mixture composition as a variable.This paper presents thermodynamic charts developed for a nonazeotropic mixture, R13B1/R152a. The developed charts (pressure-enthalpy, temperature-entropy, and enthalpy-composition), though for sake of clarity showing limited data, offer important insight for understanding vapor compression cycles for different compositions. An equation of state capable of describing both the liquid and vapor phases, property algorithms and iteration schemes used in determination of the nonazeotropic mixture thermodynamic properties have been explained.