Quote:
Originally Posted by NiHaoMike
To summarize, hydrocarbons show the most promise for DIY use.
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You're right, but the paper illuminates so many interesting aspects to the field of refrigeration... some are practical, some are currently not.
I came across this paper, because I was searching for another paper, that recognized the efficiency of Propane (R290) but also described the potential for even higher efficiency of another refrigerant, Propylene (R1270). Turns out that R1270 (AKA: Propylene, Propene & Methylethylene) never got it's day in the sun because it was considered to be too expensive for large-scale manufacturing. Well, how could there be a more inviting reason to hack together a system that used R1270? I mean it's organic, exotic (it has been identified to exist on a moon of Saturn), efficient and industry has turned its back on it because it is too expensive! It's got it all!! BTW, and I might be wrong, but I think that Propylene is now being used in applications that formerly used MAPPS gas.
I also came across, either in this paper or another one, the wide-scale, successful deployment of Butane (R600) in small refrigerators.
And I encountered cautions regarding maximum prudent amounts of HC that should be deployed in low-infiltration occupied spaces.
But who knew that there was such a thing as Magnetic Refrigeration? I don't currently see an application for near absolute zero refrigeration in my house, but what an amazing concept!
-AC