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+//Example 4_8
+clc;funcprot(0);
+//Given data
+Q=350;// m^3/sec
+H=30;// m
+n_t=0.88;//// The turbine efficiency
+f=50;// The frequency of generation in cycles/sec
+no_p=24;// Number of poles used
+N_sf=300;// Specific speed
+N_sk=800;// Specific speed
+
+//Calculation
+N=(120*f)/(no_p);// r.p.m
+w=1000*9.81;
+P_t=(w*Q*H*n_t)/(1000);// kW
+P=((N_sf*H^(5/4))/N)^2;// kW
+f_n=(P_t/P);// Number of francis turbine required
+P=((N_sk*H^(5/4))/N)^2;// kW
+k_n=(P_t/P);// Number of kaplan turbine required
+printf('\n Number of francis turbines=%0.0f \n Number of kaplan turbine used=%0.0f',f_n,k_n);
+// The answer vary due to round off error