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  1. #1
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    High discharge with air



    Hi friends I want to know reciprocating compressor running with high discharge pressure in plant have air ? and what effects plant when plant in air
    Last edited by manmohan; 08-06-2017 at 04:03 PM. Reason: Sum missing



  2. #2
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    Re: High discharge with air

    Hi
    when you have air in system
    your discharge temperature and pressure is high
    so your lubrication in compressor is become poor and also you have more pressure and you spend more power and your efficiency comes down .

  3. #3
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    Re: High discharge with air

    Quote Originally Posted by mbc View Post
    Hi
    when you have air in system
    your discharge temperature and pressure is high
    so your lubrication in compressor is become poor and also you have more pressure and you spend more power and your efficiency comes down .
    Thank you MBC my plant discharge pressure is 235 PSI in 30 PSI suction pressure condensing temperature is 34 ' c that is normal ?

  4. #4
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    Re: High discharge with air

    Hi
    what is the your refrigerant in the system?

  5. #5
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    Re: High discharge with air

    Ammonia refrigerant reciprocating compressor 235 tr 6 cylinders 750 rpm

  6. #6
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    Re: High discharge with air

    At condensing temperature of 34C your condensing pressure should be around 180 psig. How did you measure condensing temperature?

  7. #7
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    Re: High discharge with air

    Could be a few things need checking

    - air in system
    - water sprays blocked, poor water distribution, dirty strainers.
    - water pump not performing
    - build up of scale or calcium on comdenser tubes
    - fans not working correctly. direction, air bypass, missing
    - condenser to small or mis-matched
    - system overcharged with refrigerant, receiver should never be over 80% full


    The pressures you have are possibly close to relief valve setting, what are they set to relieve at & what is compressor high pressure switch set to, it should be below relief valves 10 to 15%.
    Last edited by RANGER1; 10-06-2017 at 11:15 PM.

  8. #8
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    Re: High discharge with air

    Thank you so much

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