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