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+///Chapter No 11 Steam Boilers
+////Example 11.6 Page No 233
+///Enthalpy of superheated steam
+//Input data
+clc;
+clear;
+ms=6000;                   //Boiler produce of steam Kg/h
+P=25;                      //Boiler pressure in bar
+Tsup=350;                  //Boiler temperature in degree celsius
+Tw=40;                     //Feed water temperature indegree celsius
+CV=42000;                  //Calorific value in Kj/Kg
+etaboiler=75/100;          //Expected thermal efficiency in %
+
+
+//Calculation
+hfw=167.45;                //In KJ/Kg
+Ts=223.94;                 //In degree celsius  
+hf=961.96;                 //In KJ/Kg
+hfg=1839.0;                //In KJ/Kg
+hg=2800.9;                 //In KJ/Kg
+Cps=2.3;
+hs=((hg)+(Cps)*(Tsup-Ts));         //Enthalpy of superheated steam KJ/Kg
+mf=((ms*(hs-hfw))/(CV*etaboiler)); //Boiler efficiency in %
+me=ms/mf;                          //Equivalent mass of evaporation
+E=((me*(hs-hfw))/2257);            //Equivalent evaporation in Kg/Kg of oil
+
+
+//Output
+printf('Enthalpy of superheated steam=%f KJ/Kg \n',hs);
+printf('Boiler efficiency=%f percent \n',mf);
+printf('Equivalent mass of evaporation=%f \n',me);
+printf('Equivalent evaporation=%fKg/Kg of oil \n' ,E);