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+clc;funcprot(0);//EXAMPLE 17.19
+// Initialisation of Variables
+n=6;......................//No of cylinders
+pdpc=700*10^(-6);.................//Piston displacement per cylinder in m^3
+P=78;............................//Power developed in kW
+N=3200;.............................//Engine rpm
+mf=27;.............................//Fuel consumption in kg/h
+C=44000;...........................//Calorific value of fuel in kJ/kg
+afr=12;..............................//Air fuel ratio
+p1=0.9;..........................//Intake air pressure
+pa=p1;
+t1=305;...............................//Intake air temperature
+ta=t1;
+R=0.287;.....................//Gas constant in kJ/kgK
+//Calculations
+ma=afr*mf;............................//maaa of air in kg/h
+Va=(ma*R*t1)/(p1*100);.............//Volume of air intake in m^3/h
+Vs=pdpc*n*(N/2)*60;.....................//Swept volume in m^3/h
+etaV=Va/Vs;.............................//Volumetric efficiency
+disp(etaV*100,"The volumetric efficiency of the engine (in %):")
+etabt=P/(mf*(C/3600));...................//Brake thermal efficiency
+disp(etabt*100,"The brake thermal efficiency of the engine (in %):")
+Tb=(P*60)/(2*%pi*N);..........................//Brake torque in kNm
+disp(Tb,"Brake torque (in kNm):")