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clc
clear
printf("example 4.12 page number 143\n\n")
//to find the power requirements
Q=3800/(24*3600) //in m3/s
d=0.202 //in m
u=Q/((3.14/4)*d^2); //in m/s
delta_P=5.3*10^6 //in Pa
density=897 //in kg/m3
F=delta_P/density; //in J/kg
ws=9.8*30+F;
mass_flow_rate= Q*density;
power=(ws*mass_flow_rate)/0.6;
printf("power required = %f kW",power/1000)
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