描述了在蒸汽压缩循环中，使用宽滑移非共沸混合物进行内部分馏所引起的浓度变化的测量。将该现象建模并应用于其他替代制冷剂混合物，如R407C、R404A和R410A，以预测其浓度变化和相关性能变化。描述了关于油溶解度分数引起的成分变化的油溶解度测量。注:研究使用这些结果作为基础，在广义基础上计算不同配置的蒸汽压缩循环中，非共沸混合物在系统内部分离、油溶解度分数和泄漏引起的浓度变化方面的行为。 关键词:1997年，制冷剂，混合物，非共沸引文:研讨会，ASHRAE Trans。1997年，第103卷，第一部分

Describes measurements of concentration shifts caused by internal fractionation performed using a wide glide nonazeotropic mixture in a vapour compression cycle. The phenomenon was modelled an applied to other alternative refrigerant mixtures such as R407C, R404A and R410A to predict their concentration shift and the associated performance changes. Describes oil solubility measurements with regard to the composition shift by fractional oil solubility. Notes research using these results as a basis to calculate on a generalised basis the behaviour of nonazeotropic mixtures in vapour compression cycles of different configurations with regard to the concentration shift caused by the separation internally in the system, by fractional oil solubility and by leakage.KEYWORDS: year 1997, Refrigerants, mixtures, non azeotropic