10.7 A centrifugal water pump designed to operate at 1200 rpm has dimensions

Determine the flow rate at which the entering velocity has no tangential component. Draw the outlet velocity diagram, and determine the outlet absolute flow angle measured relative to the normal direction at this flow rate. Evaluate the hydraulic power delivered by the pump if its efficiency is 70 percent. Determine the head developed by the pump.

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Parameter Radius, r (mm) Inlet Outlet 90 150 Blade width, b (mm) Blade angle, (deg) 10 7.5 25 45