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diff --git a/3751/CH5/EX5.2/Ex5_2.sce b/3751/CH5/EX5.2/Ex5_2.sce new file mode 100644 index 000000000..afb2f5d9a --- /dev/null +++ b/3751/CH5/EX5.2/Ex5_2.sce @@ -0,0 +1,44 @@ +//Fluid Systems- By Shiv Kumar +//Chapter 5- Francis Turbine +//Example 5.2 +//To Find (a)Discharge (b) Power Developed and (c)Hydraulic Efficiency + + clc + clear + +//Given Data:- + Do=1.2; //Diameter of Runner at Inlet, m + Ao=0.4; //Area of Flow at Inlet, m^2 + N=500; //Speed of Runner, rpm + H=135; //Head, m + alpha_i=20; //Guide Vane Angle at Inlet, degrees + beta_i=65; //Vane angle at Inlet, degrees + +//Data Required:- + rho=1000; //Density of Water, Kg/m^3 + g=9.81; //Acceleration due to gravity, m/s^2 + + +//Computations:- + ui=%pi*Do*N/60; //m/s + Vri=ui*sind(alpha_i)/sind(beta_i-alpha_i); //m/s + Vfi=Vri*sind(beta_i); //m/s + Vwi=Vfi/tand(alpha_i); //m/s + + //(a)Discharge, Q + Q=Ao*Vfi; //m^3/s + + //(b)Power develpoed by Runner + P=rho*Q*Vwi*ui/1000; //kW + + //(c)Hydraulic Efficiency, eta_H + eta_H=Vwi*ui*100/(g*H); //Percentage + + +//Results:- + +printf(" (a)Discharge, Q=%.3f m^3/s\n ",Q) //The Answer Vary due to Round off Error +printf(" (b)Power develpoed by Runner=%.3f kW\n ",P) //The Answer provided in the Textbook is Wrong +printf(" (c)Hydraulic Efficiency, eta_H =%.2f Percent\n ",eta_H) //The Answer Vary due to Round off Error + + |