A pump with an 8-in diameter impeller is operating at 1750 rpm and delivering 40 gpm with a total dynamic head of 55 ft. The pump's brake horsepower (BHP) is 1.2 hp under these conditions. Assume constant efficiency.
a. Approximate the pump's capacity if impeller size is increased to 10 in.
b. Approximate the pump's capacity if pump speed is increased to 3450 rpm.
c. Approximate the pump's total dynamic head if impeller size is increased to 10 in.
d. Approximate the pump's total dynamic if pump speed is increased to 3450 rpm.
e. Approximate BHP if impeller size is increased to 10 in.
f. Approximate BHP if pump speed is increased to 3450 rpm.