//Example 5-12 Pumping Power and Frictional Heating in a Pump
Wdot_electric = 15 //power rating of motor [kW]
eta_motor = 90 //efficiency of motor [%]
Vdot = 50 //water flow rate through pump [L/s]
P_1 = 100 //pressure at inlet of pump [kPa]
P_2 = 300 //pressure at outlet of pump [kPa]
rho = 1000 //density of water [kg/m^3]
c = 4.18 //Specific heat of water [kJ/kg.K]