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+///Chapter No 11 Steam Boilers
+////Example 11.12 Page No 243
+///Find Mean temperature of fuel gases
+//Input data
+clc;
+clear;
+H=27;                                //Chimney height in m
+hw=15;                              //Draught produces of water column in mm
+ma=21;                               //Gases formed per Kg of fuel burnt in Kg/Kg
+Ta=25+273;                           //Temperature of the ambient air in degree celsius
+
+
+//Calculation
+Tg=-(((ma+1)/ma)/((hw/(353*H))-(1/Ta))) //Mean temperature of fuel gases in K
+
+//Output
+printf('Mean temperature of fuel gases= %f K \n',Tg);
+