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Thread: Morphing Air Conditioner into Autocascade System

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  1. #11
    -150c Club Member
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    Quote Originally Posted by Clemmaster View Post
    I've always been thinking of "quasi-non blending" refrigerant (R290+R744 or R290+R23) not on HC mixtures and that's a part I'll we be working on!
    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
    Last edited by mytekcontrols; 04-17-2008 at 05:08 AM.
    Michael St. Pierre

    • Worked 15 years for Polycold Systems
    • Now Self-Employed
    • Manufacture Heat Load Controllers
    • Also do contract service work on Polycold units

    Side note: I usually don't respond to PM's or emails regarding the projects that I post in the forums. I feel it's much more fair to all, to answer questions within the forum topics themselves.

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