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//Fluid system - By - Shiv Kumar
//Chapter 4 - Pelton Turbine (Impulse Turbine)
//Example 4.5
clc
clear
//Given Data:-
n=2; //Number of Jets
P=15450; //Shaft Power, kW
d=200; //Diameter of each Jet, mm
H=400; //Net Head, m
Cv=1;
//Data Used:-
rho=1000; //Density of water, kg/m^3
g=9.81; //Acceleration due to gravity, m/s^2
//Computations:-
P=P*1000; //W
d=d/1000; //m
Vi=Cv*sqrt(2*g*H); //Absolute Velocity of Jet at Inlet, m/s
q=(%pi/4)*d^2*Vi; //Discharge through each Jet, m^3/s
Q=n*q; //Net Discharge
eta_O=P/(rho*Q*g*H)*100; //Overall Efficiency, in percentage
//Results:-
printf("The Overall Efficiency of the Turbine, eta_o=%.2f percent", eta_O) //The answer vary due to round off error
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