I like the term "quasi-non blending". In other words; a virtual refrigerant, one that exists only under certain conditions
This is probably as good of a description as any, for what happens to the combination of refrigerants used within an autocascade as they are subcooled, and then go into solution with other nearby boiling point neighbors. Thus creating a condensate with a unique boiling point.
I also think that the other affect that we see to lowering temperatures, is that brought on by evaporating a condensate into an environment which consists of gases that have a lower boiling point then the condensate itself (eg; R-14 evaporating into Argon rich environment). This could be compared to the effectiveness of an evaporative water cooler in a high humidity environment vs. a dry low humidity one. The low humidity environment, being of a large part composed of lower boiling point gases, allows for an increased flow of heat from the evaporation of the water. Where as the high humidity environment is less effective due to saturation.
This is all part of the fun and magic to getting an autocascade to work properly![]()





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