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  1. #1
    Join Date
    Oct 2018
    saudi arabia
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    refrigerant critical temperature

    hi friends.

    i am studying the HVAC system and trying to completely visualize the working condition for refrigerant throw out all process

    in the condenser coil the gas will condense at the designed condensing temperature. (which normally can be between 15C higher than the ambient temperature)

    my question:
    how much recommended the refrigerant critical temperature to be higher than the condensing temperature.

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  2. #2
    Join Date
    Jan 2010
    Sea to Sky
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    You don't want to exceed the critical temperature, but you also want the condensing temperature low enough to keep your compression ratio down but enough pressure drop across the metering device to properly feed refrigerant.

    This all relies on a lot of different parameters and most systems are different. If you are looking for a rule of thumb, I am not aware of one for this situation.

    Sent from my SM-G965W using Tapatalk

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