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+//Chapter-1, Illustration 7, Page 20
+//Title: Fuels and Combustion
+//=============================================================================
+clc
+clear
+
+//INPUT DATA
+C=0.9;//Percentage composition of Carbon
+H=0.033;//Percentage composition of Hydrogen
+O=0.03;//Percentage composition of Oxygen
+N=0.008;//Percentage composition of Nitrogen
+S=0.009;//Percentage composition of Sulphur
+M1=44;//Molecular mass of CO2
+M2=64;//Molecular mass of SO2
+M3=32;//Molecular mass of O2
+M4=28;//Molecular mass of N2
+
+//CALCULATIONS
+m=(11.5*C)+(34.5*(H-(O/8)))+(4.3*S);//Minimum mass of air per kg of coal in kg
+mCO2=(11*C)/3;//Mass of CO2 produced per kg of coal in kg
+mHw=9*H;//Mass of H2O produced per kg of coal in kg
+mSO2=2*S;//Mass of SO2 produced per kg of coal in kg
+mt=11.5*1.5;//Total mass of air supplied per kg of coal in kg
+me=mt-m;//Excess air supplied in kg
+mO2=0.232*me;//Mass of excess O2 produced per kg of coal in kg
+mN2=0.768*mt;//Mass of N2 produced per kg of coal in kg
+mtN2=mN2+N;//Total mass of Nitrogen in exhaust in kg
+md=mCO2+mSO2+mO2+mtN2;//Total mass of dry flue gases per kg of fuel in kg
+CO2=(mCO2/md)*100;//Percentage composition of CO2 by mass in percent
+SO2=(mSO2/md)*100;//Percentage composition of SO2 by mass in percent
+O2=(mO2/md)*100;//Percentage composition of O2 by mass in percent
+N2=(mN2/md)*100;//Percentage composition of N2 by mass in percent
+c1=CO2/M1;//Proportional volume of CO2
+c2=SO2/M2;//Proportional volume of SO2
+c3=O2/M3;//Proportional volume of O2
+c4=N2/M4;//Proportional volume of N2
+c=c1+c2+c3+c4;//Total proportional volume of constituents
+m1=c1/c;//Volume of CO2 in 1 (m^3) of flue gas
+m2=c2/c;//Volume of SO2 in 1 (m^3) of flue gas
+m3=c3/c;//Volume of O2 in 1 (m^3) of flue gas
+m4=c4/c;//Volume of N2 in 1 (m^3) of flue gas
+d1=m1*100;//Volume analysis of CO2
+d2=m2*100;//Volume analysis of SO2
+d3=m3*100;//Volume analysis of O2
+d4=m4*100;//Volume analysis of N2
+
+//OUTPUT
+mprintf('Minimum mass of air required is %3.1f kg \n Total mass of dry flue gases per kg of fuel is %3.2f kg \n Percentage composition of CO2 by volume is %3.2f percent \n Percentage composition of SO2 by volume is %3.3f percent \n Percentage composition of O2 by volume is %3.1f percent \n Percentage composition of N2 by volume is %3.2f percent',m,md,d1,d2,d3,d4)
+
+
+
+
+
+
+//==============================END OF PROGRAM=================================