River water at 70 0 F flowing at 10 mph is diverted into a 30' x 30' channel which is connected to a turbine operated 500 ft below the channel entrance. The water pressure at the channel inlet is 25...

River water at 70⁰F flowing at 10 mph is diverted into a 30' x 30' channel which is connected to a turbine operated 500 ft below the channel entrance. The water pressure at the channel inlet is 25 psia and the pressure 20 ft below the turbine is atmospheric. An estimate of the lost work in the channel is 90 ft lbf/lbm.

a. Draw a flow diagram showing all control volumes and control surfaces with reference to a zero energy plane.

b. Calculate the horsepower from a 90 percent efficient water turbine.