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Recent content by ericdayo26

  1. ericdayo26

    Help in Flow Computation

    Thanks Little Inch, I'll be updating this. Probably post it in a new thread. I'm getting married tomorrow so I can't do it this soon. BTW, its supposed to be a 4M diameter Tank, not an inch. lol, my Bad. :) Kind Regards to everyone here. Ericson
  2. ericdayo26

    Help in Flow Computation

    Yes, I was thinking about that too, though in theory only, as I do not really know how to calculate it. I haven't calculated flow diversions before. I do mostly calculating the correct pump to use by way of Equivalent length. But again, I haven't really tried knowing the exact flow rate when a...
  3. ericdayo26

    Help in Flow Computation

    I would like to apologize to Mike for the irresponsible statement. Here is an attached Sketch of the System. Its a one step transfer to another open tank process. However, my problem is that I want to divert some of the flow to serve a dilution to an open pit. The Sketch is just a...
  4. ericdayo26

    Help in Flow Computation

    Hi Guys, I know my question may be fairly easy for the professionals, but I would like to pose this topic and see how it goes. The Problem: Say I have a centrifugal pump the pumps water to a open tank that is 4"dia x 5m height. And I will need to tap a 2"dia pipe to its discharge pipe...
  5. ericdayo26

    System Curve of a Throttled Valve

    BigInch, yes the flow is very much within the range of the pump curve's BEP. I'm going to try and post the pump's curve later. I have another question though.. why do they say that you will save more power if you operate the centrifugal pump near BEP? Say a centrifugal pump with a control valve...
  6. ericdayo26

    System Curve of a Throttled Valve

    LittleInch, I think what your describing is the efficiency of the VFD? If that is it, then yes, actually I do multiply an additional 90% eff for the VFD, when calculating for the Power. Say, Pump eff * Motor eff * VFD eff. BTW, I got to download the file this time, thanks again. Also, about the...
  7. ericdayo26

    System Curve of a Throttled Valve

    Ok you guys, thank you for giving your time on this. Little inch, I agree with you with regards to your explanation of the system curve. So this means that even though i calculated the Total Dynamic Head to be 32M, I only need 20 meters of head with a VSD to get 190m3/hr? Additional info to...
  8. ericdayo26

    System Curve of a Throttled Valve

    Hi there fellow engineers, I have a question with regards to a system with a throttled valve. First let me explain the system, A centrifugal pump supplies stock (3.5% consistency) to the top of Chest B, from Chest A (both chest are open to the atmosphere). The Levels on both chest are...
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