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  1. #1
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    De superheater in Air Cooled Chiller


    Can any one please tell how doees a De superheater in air cooled chiller work? What are its advantages.



  2. #2
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    Re: De superheater in Air Cooled Chiller

    Desuperheater removes heat from superheated refrigerant gas after compression, but it does not remove enough heat to cause condensation of the refrigerant. The advantage is the relatively high temperature of the removed heat, the disadvantage is that the desuperheater is normally limited to 5-25% of total heat rejection.

  3. #3
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    Re: De superheater in Air Cooled Chiller

    As NoNickName stated the purpose of the desuperheater is to remove temperature from the gas stream.

    NoNickName, nice to see you around here. How is your work progressing?
    If all else fails, ask for help.


  4. #4
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    Re: De superheater in Air Cooled Chiller

    What is the advantage of de-superheating the hot gas when it would otherwise be cooled by air on the air cooled condenser any way especially when both heat is to be dissipated to the ambient air. I am assuming that the de-superheater would be in operation when the chiller is operated to cool.

    Quote Originally Posted by NoNickName View Post
    Desuperheater removes heat from superheated refrigerant gas after compression, but it does not remove enough heat to cause condensation of the refrigerant. The advantage is the relatively high temperature of the removed heat, the disadvantage is that the desuperheater is normally limited to 5-25% of total heat rejection.

  5. #5
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    Re: De superheater in Air Cooled Chiller

    Hi, Rabindra

    Quote Originally Posted by Rabindra View Post
    What is the advantage of de-superheating the hot gas when it would otherwise be cooled by air on the air cooled condenser any way especially when both heat is to be dissipated to the ambient air. I am assuming that the de-superheater would be in operation when the chiller is operated to cool.
    Quote Originally Posted by NoNickName
    Desuperheater removes heat from superheated refrigerant gas after compression, but it does not remove enough heat to cause condensation of the refrigerant. The advantage is the relatively high temperature of the removed heat, the disadvantage is that the desuperheater is normally limited to 5-25% of total heat rejection.
    Advantage is to use this 5-25% to heat sanitary water or something else...it is a "free" energy (already paid) and we have to see how to utilize it no need to dissipate it to the nature and then use electrical heaters or gas burners to heat something...

    Best regards, Josip

    It's impossible to make anything foolproof because fools are so ingenious...

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  6. #6
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    Re: De superheater in Air Cooled Chiller

    The advantage is the higher temperature than condensing temperature. So, if you need to recover heat at e.g. 70C you can't use a condenser. You need a desuperheater.

    And for US Iceman, I'm back in town. Leaving the new job for a refrigeration compressors manufacturing company. I'll be around more and more frequently.

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