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Q & A: Motor/Pump combined efficiency

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Most recent answer: 05/05/2011
Given a motor with a 95% efficiency and a pump with a 82% efficiency how do I calculate the combined efficiency?
- John (age 59)
Richmond, VA
You just multiply the respective efficiencies to get the total effective efficiency:
Efftotal = Effmotor x Effpump  = 0.95 x 0.82  = 0.799  or about 80%


(published on 05/05/2011)

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