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(Solved): Based on the following chart representing the characteristic curve of a pump: a. Calculate the brak ...
Based on the following chart representing the characteristic curve of a pump:
a. Calculate the brake horsepower of the pump (impeller size = 6½ inches, pump rotational speed = 1750 rpm, and water flow = 120 GPM)?
b. If the impeller size is 6 inches and the flow rate is 75 GPM when the speed = 1750 rpm. When the speed increases, it is found that the flow rate is 90 GPM. What is the pump head at 90 GPM and the new speed if the affinity law is valid?
Figure \( 13- \) Pump Curve for 1750 RPM Operation
Expert Answer
a) 1. Best Efficiency Point => It is a point on performance curve on which if pump operates it will give maximum efficiency. In given curve to find BEP first mark 6.5