Question

pump was manufactured to couple directly to a 15 hp electric motor running at 1450 rpm delivering 850 liter/min against a total head 40 m. It is desired to replace the motor by a diesel engine with 1,000 rpm speed and couple it directly to the pump. Find the probable discharge and head developed by the pump Also find the hp of the engine that would be employed, then calculate the pump efficiency (η) for pumping of water, and the specific speed for these two pumps ?

Answer 1