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diff --git a/536/CH8/EX8.7/Example_8_7.sce b/536/CH8/EX8.7/Example_8_7.sce
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+clc;
+clear;
+printf("\n Example 8.7\n");
+
+d=40e-3;//Internal Diameter of the pipe
+l_p=150; //Lendth of pipe
+Q_watr=600e-6;//Flow of water
+h1=10; //Vertical Height
+h2=2; //head lost across heat exchanger
+eta=60/100; //Efficiency of pump
+
+A=%pi/4*d^2; //Area for flow
+printf("\n Area for flow = %.4f m^2",A);
+u=Q_watr/A; //Velocity
+//At 320 K,
+Meu=0.65e-3;
+rho=1000;
+Re=d*u*rho/Meu;
+printf("\n Reynolds no. = %d",Re);
+phi=0.004; //for a relative roughness of 0.005
+l=l_p+h1+(260*d);
+printf("\n Equivalent length of pipe = %.1f m",l);
+hf=4*phi*l*u^2/(d*9.81);
+h_tot=hf+h1+h2;//Total head to be developed
+printf("\n Total head to be developed = %.2f m",h_tot);
+G=Q_watr*rho;// Mass flow of water
+P_r=G*h_tot*9.81; //Power Required
+P_s=P_r/eta; //Power Supplied
+printf("\n Power Required = %.0f W",P_s);
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