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    Discussion in 'The main mechanical design forum' started by ahad_yekta2004, Apr 12, 2010.

    1. ahad_yekta2004

      ahad_yekta2004 New Member

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      i want a calculation which get power and turque and speed of a hydroalic pump , then give the displacment or flow rate of it .
       
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    3. mvalenti

      mvalenti Well-Known Member

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      I think you need to provide more information. Usually you have a required amount of work, then you size a pump accordingly.
       
    4. ConnectUTS

      ConnectUTS Active Member

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      All hydraulic work is based on a simple equation

      Work or Energy = Pressure x Volume

      Since hydraulic pumps work with incompressible fluids Power which is the rate of work can be expressed by the equation

      Power = Pressure x flow rate

      If you know the displacement of the cylinder or working chamber you can calculate amount of power per cycle and from that you can calculate the torque.

      I realize that this is a little sketchy, but before you can go much farther you need to determine what type of hydraulic pump you have. Is it a gear pump, a piston pump, or other type of pump.
       
    5. dhinesht

      dhinesht New Member

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      power=(d*g*Q*H)/1000

      pressure=d*g*H


      power=(2*pie*N*T)/60

      where

      d=density of the pumping fluid in kg/m^3,(for water 1000kg/m^3)

      g=acceleration due to gravity (9.81m^2/s)

      Q=fluid flow rate in m^3/s

      H=head of the fluid in metrs

      pie=22/7

      N=speed of the impeller in rpm

      T=torque in N-m.

      i think by using these derivations u can find out the value of power.
       
    6. Dhanush

      Dhanush Member

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      More inputs in terms of load to be handled and its type. :(

      regards,
      DN :ugeek:
       
    7. sabir .nike

      sabir .nike New Member

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      I think u need to provide ur motor specifications and ur working datas..
       

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