PROBLEM 1. A pump delivers 10 liters/min with a pressure rise of 80 bar. The shaft speed is 1420 rev/min and the nominal displacement is 0.008 liters/rev. The torque input is 11.4 N-m. Calculate: a). the volumetric efficiency b). the shaft power c). the over-all efficiency

Determine the % increase in Flowrate, Net pumping head and Pump power based on the following conditions below: a) Increasing the impeller speed by 30% b) Increasing the impeller diameter by 20% c) Compute the same if the two conditions above will prevail in one condition Please show complete solution.

A pump's shaft is being turned 1,811 rev/min. The pump will ideally produce (no leakage) 39 L/min. What is the pump's displacement in cc/rev?

In the figure shown, it is desired to pump 40 L/s of water from a natural stream to a small reservoir. The stream is connected to the small reservoir using 3 pipes with properties provided in the table. The overall pump efficiency is 70%. Neglect minor losses. a) Calculate the flow rates in pipes 2 and 3. b) Calculate the mechanical head supplied by the pump to the flow. c) Compute the electric power input required by the pump. Pipe Length Diameter Friction (m) (mm) Factor 1 1000 El. 90 m 250 0.015 2 500 160 0.022 3 600 200 0.025 1 El. 30 m