Ok, I plan to build an autocascade to cool my chip, i've got a brand new Electrolux ML80FB Low Temp R404a 1/4HP compressor that I bought for a single stage propane system, seeing how I paid good money for it I want to try and use it in the autocascade. Here is my schematic for the system:
I will add a drier or 2 and sight glasses in the usual places to keep things dry and so i can see whats going on. For the heat exchanger im thinking of using a liquid line heat exchanger like the ones from doucette industries (suction line HX ) and for the evaporative condensor I might make a coaxial coil. The phase separator will be based on the design in the US patent No. 6457325 (Search Here ). I plan on using propane and R23, I was going to use CO2 but didnt realise that the triple point temp was as high as it was, -56ÂșC, so that kinda defeats the purpose of going for the lower temps. I read that some of you guys have built these, captin cascade and aenigma, so some thoughs and experiences would be greatly appreciated.
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