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Diffstat (limited to '3751/CH4/EX4.20/Ex4_20.sce')
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diff --git a/3751/CH4/EX4.20/Ex4_20.sce b/3751/CH4/EX4.20/Ex4_20.sce new file mode 100644 index 000000000..184934bd5 --- /dev/null +++ b/3751/CH4/EX4.20/Ex4_20.sce @@ -0,0 +1,42 @@ +//Fluid Systems - By - Shiv Kumar +//Chapter 4 - Pelton Turbine (Impulse Turbine) +//Example 4.20 + + clc + clear + +//Given Data:- + D=1.6; //Mean Diameter of Bucket Circle, m + P=3200; //Power Developed, kW + n=2; //Number of Wheels + H=300; //Effective Head, m + N=410; //Speed, rpm + eta_o=0.89; //Overall Efficiency + Cv=0.98; //Co-efficient of Velocity + + +//Data Used:- + rho=1000; //Density of water, kg/m^3 + g=9.81; //Acceleration due to gravity, m/s^2 + +//Computations:- + Q=P*1000/(rho*g*H*eta_o); //Discharge, m^3/s + + //(a)Diameter of the Nozzle, d + Vi=Cv*sqrt(2*g*H); //m/s + d=sqrt(Q/((%pi/4)*Vi))*1000; //mm + + //(b)Speed Ratio, Ku + u=%pi*D*N/60; //m/s + Ku=u/sqrt(2*g*H); + + //(c)Specific Speed, Ns + Ns=N*sqrt(P/n)/(H^(5/4)); // In SI Units + + +//Results:- + printf(" (a)Diameter of the Nozzle, d=%.2f mm\n",d) //The answer vary due to round off error + printf(" (b)Speed Ratio, Ku =%.3f \n",Ku) //The answer vary due to round off error + printf(" (c)Specific Speed, Ns =%.f (SI Units)\n",Ns) + + |