//Example 5-13 Hydroelectric Power Generation from a Dam
Vdot = 100 //flow rate of water to a turbine [m^3/s]
z_1 = 120 //total available head [m of water]
h_L = 35 //head loss [m]
eta_turbinegen = 80 //overall efficiency of unit [%]
rho = 1000 //density of water [kg/m^3]
g = 9.81 //gravitational acceleration [m/s^2]