A pump station is used to fill a tank on a hill above from a lake below as shown in Figure P9 .18. The flow rate is 10.5 I/s at a temperature of 16°C. The pump is 4 m above the lake and the tank water...

A pump station is used to fill a tank on a hill above from a lake below as shown in Figure P9 .18. The flow rate is 10.5 I/s at a temperature of 16°C. The pump is 4 m above the lake and the tank water level is 115 m above the pump. The suction and discharge lines are 10.2-cm-diameter steel pipe. The equivalent length of the inlet line between the lake and the pump is 100 m while the total equivalent length between the lake and the tank 2300 m. The overall efficiency of the pump and motor is 70%.

a. What is the required power of the motor in kW?

b. What is the N PSH for this application?