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+//Fluid Systems - By - Shiv Kumar
+//Chapter 11- Centrifugal Pumps
+//Example 11.8
+//To Determine the Power Required to drive the centrifugal Pump.
+
+       clc
+        clear
+
+//Given Data:-
+         Q=40;       //Discharge, litres/s
+         Hst=20;      //Static Head, m
+         D=150;      //Diameter of Pipe, mm
+         L=100;      //length of pipe, m
+         eta_o=70/100;      //Overall Efficiency
+          f=0.015;       //Coefficient of friction 
+
+
+//Data Used:-
+         rho=1000;       //Density of water, kg/m^3
+         g=9.81;       //Acceleration due to gravity, m/s^2
+   
+
+//Computations:-
+             Q=Q/1000;     //m^3/s
+             D=D/1000;       //m
+          
+            A=(%pi/4)*D^2;      //m^2 
+            V=Q/A;      //m/s
+             Vd=V;
+      
+           h_f=4*f*L*V^2/(2*g*D);         //Frictional Head Loss in Pipe, m
+           Hm=Hst+h_f+Vd^2/(2*g);       //Manometric Head, m
+           P=rho*Q*g*Hm/(eta_o*1000);      //kW
+
+//Result:-
+      printf("Power Required to drive the Centrifugal Pump=%.3f kW\n",P)     //The answer vary due to round off error    
+