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  1. aak7

    Option to resolve acceleration head loss

    hi micalbrch, Sorry, I was mistaken. The k should not be 0.016. I have modified my k to be 0.2 (equiv to duplex single acting pump type). 0.016 was used by our vendor, which is using another formula to calculate acceleration head loss: Ha = 0.016LQN/d^2. This was suggested by Milton Roy pump...
  2. aak7

    Option to resolve acceleration head loss

    Hi BigInch, What do you mean by 'provide the full head using the LVNC equation'? Does it mean, reduce the acceleration head loss by reducing L (Option 1 and 3) or V (Option 2)?
  3. aak7

    Option to resolve acceleration head loss

    Hi ione, Using formula Ha = LVNC/gk, which expression will be affected if dampener is used? Appreciate your comment.
  4. aak7

    Option to resolve acceleration head loss

    Yes this is for positive displacement pump. What i meant, does the acceleration head play a role in NPSHa calculation for a positive displacement pump? In which you answered yes. Are you able to give opinion on the option #3 I asked about?
  5. aak7

    Option to resolve acceleration head loss

    Is the term acceleration head loss is valid for the NPSHa calculation? I remembered my process engineering course about calculating NPSHa which only considered static elevation, pressure of suction vessel and friction loss. No acceleration head. I was referring to the website that ione was...
  6. aak7

    Option to resolve acceleration head loss

    Hi, I am new here and need some guidance. A new pump skid needs to be fabricated and fitted in a ready location at my gas platform. From what I heard, the old pump never worked - did not know a lot of details. Did a calculation to determine if NPSHa > NPSHr so there won't be repeat incidents...

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