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  1. #1
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    Effect of Suction Super heat in flooded evaporator using Ammonia



    Dear all,
    hello
    i want to ask what is the effect of Suction Superheat in flooded evaporator using ammonia ?
    does it same as in case of dry evaporator ?
    how to handle it if i have a manual expansion valve ?



  2. #2
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    Re: Effect of Suction Super heat in flooded evaporator using Ammonia

    pushcar, no superheat on this type of system.

    Liquid recirculation or overfeed has a rate of example 4 to 1
    4 kg of refrigerant sent to evaporator, 3 comes back as liquid & 1 kg converted to saturated gas.
    No real superheat is measured, only air on/off temps as per design or if surge drum, correct level is achieved
    by approx liquid feed solonoid on 70% of the time under full load conditions. Set manual expansion valve to meet above requirments.

  3. #3
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    Re: Effect of Suction Super heat in flooded evaporator using Ammonia

    There was a really good thread on this sometime back.
    http://www.refrigeration-engineer.co...hlight=brining
    US Iceman wrote a paper on this. One of the best I have read. It is on the Internet, and a link is probably in the thread. I have it on my computer and will find it sooner or later.

  4. #4
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    Re: Effect of Suction Super heat in flooded evaporator using Ammonia

    Quote Originally Posted by NH3LVR View Post
    There was a really good thread on this sometime back.
    http://www.refrigeration-engineer.co...hlight=brining
    US Iceman wrote a paper on this. One of the best I have read. It is on the Internet, and a link is probably in the thread. I have it on my computer and will find it sooner or later.
    Some of it starts from post number 97 on above thread.

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