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Homework Help: Characteristic Curve of a Centrifugal Pump

  1. Jul 20, 2013 #1
    1. The problem statement, all variables and given/known data

    The pump characteristic curve of a centrifugal pump can be plotted from the following details:

    (See attachment)

    The pump delivers 90 L/s when pumping against a static head of 12 m. Plot the pump characteristic curve from the details given and calculate:

    1. The quantity of water delivered in L/s.
    2. The total head pumped against, if the static head and pipe length are increased by 30%.

    2. Relevant equations

    [itex]H_{Total}[/itex] = [itex]H_{static}[/itex] + [itex]H_{friction}[/itex]

    [itex]\frac{H_{f1}}{H_{f2}}[/itex] = [itex](\frac{Q_{1}}{Q_{2}})^{2}[/itex]

    3. The attempt at a solution

    If anyone can help me where to start. I drew the curve and now I'm completely stuck and confused. Any help will be greatly appreciated.

    Attached Files:

  2. jcsd
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