At a level of 480 m below the ground surface it is required to pump groundwater with Q = 50.0 I/s to a tank whose water level is 14 m above ground surface using a multistage pump running at a speed of...

At a level of 480 m below the ground surface it is required to pump groundwater with Q = 50.0 I/s to a tank whose water level is 14 m above ground surface using a multistage pump running at a speed of 1500 rpm. The pump has a specific speed of 85 m and overall efficiency of 75%. The pump is connected with a pipeline 500 m long, 22 cm diameter, and 0.008 pipe friction factor. Calculate the required motor power. If the pump works 10 hours/day, calculate the energy cost during one month if energy cost is 0.01 $/hr for each 1 hp.