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+printf("\t example 14.1 \n");
+printf("\t approximate values are mentioned in the book \n");
+
+t1 = 300; //°F
+t2 = 226; //°F
+bs = 700; // Btu/((hr)(ft^2)(°F))
+//Heat Balance
+Qv = 10000 * 961; // Btu/hr
+printf("\tQevap is %.2e Btu/hr\n",Qv);
+Q3 = 10550 * 910; //Btu/hr
+printf("\tQ300°F is %.2e Btu/hr\n",Q3);
+
+delT = t1-t2; //°F
+printf("\tTemperature head = %.0f °F\n",delT);
+Ud = bs * 0.865;
+printf("\tOverall coefficient %.0f\n",Ud);
+A = Qv/(Ud * delT); //ft^2
+printf("\tSurface required is %.0f ft^2\n",A); //Wrong calculation in book
+//end