# A water pump has been operating at a pump station at speed 1000 rpm. The pipeline...

###### Question:

A water pump has been operating at a pump station at speed 1000 rpm. The pipeline system characteristics at the station are as follows. Head loss in pipeline: 80 1 Discharge (LS) 0 20 40 60 Head (m) 4 10 20 The static head is 20 m. The pump characteristics at speed 1000 rpm are provided by the manufacturer and given as follows. Discharge (IS) 0 20 40 50 60 Head (m) 50 45 14 Efficiency (%) 60 69 60 40 33 25 2 a). Determine the duty point of the present pump-pipeline system, and the power consumption of the pump. It is proposed to add another pump, identical to the present one. The two pumps will be connected in parallel and operating at a speed of 1000 rpm. b). Determine the maximum discharge rate of the proposed pump-pipeline system. c). Determine the total power consumption of the proposed system corresponding to the maximum discharge rate, and comment on the suitability of the proposed system.