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Pump efficiency

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Old   February 15, 2008, 02:19
Default Pump efficiency
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How to calculate pump efficiency by CFD?

I have one method. Kindly let me know its correctness. Calculate discharge total pressure (DTP), flow rate (Q) and impeller torque (T) by CFD. w is rotational speed of pump.

Efficiency = (DTP*Q) / (T*w)

This ignores the frictional losses and bearing losses.

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Old   February 26, 2008, 06:48
Default Re: Polder Pump efficiency
Jayesh Vanara
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Dear sir, I want to kmow about 75HP polder pump's Minimum Efficiency & maximum Efficiency. Pl. reply me. Thank You.
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