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Thread: 4-stage cascade

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  1. 10-05-2011, 08:39 PM #1
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    Re: 4-stage cascade

    I've removed the 3rd stage CPU evaporator CPEV because it was leaking by the screw, and replaced it by 1.75m of .8mm captube.

    Evap out = -129.3C; it looks fairly accurate.



    HSP: 1st stage at 10.5 bars, 2nd stage at 5 bars and 3rd stage at 13
    Probes gave -50C for the 1st stage TXV and -85C for the 2nd stage TXV.



    I don't know why, but 3rd stage evaporator takes a very long time to go down to about -117C and then looses nearly 20C within few seconds.... I'm a bit puzzled.
    Last edited by before; 10-05-2011 at 08:50 PM.
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