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+clc;funcprot(0)//EXAMPLE 7.5
+
+//Initializing the variables
+n=6;................//No of cylinders
+vsi=730*(10^(-6));..........//Piston displacement per cylinder in m^3
+BP=80;.............//Power produced per cylinder in kW
+N=3100;...........//Engine rpm
+C=44*(10^6);...........//Calorific value of petrol in J/kg
+Pc=28;........//Petrol consumed per hour in kg
+afr = 13/1;.......//air fuel ratio
+pi=0.88*(10^5);..............//Intake pressure in pa
+T=300;............//Intake temperature in Kelvin
+R = 287;.........//gas constant in J/kg.K
+//calculations
+ma = (Pc*afr)/60;...........//air comsumed
+rhoa = pi/(R*T);.......//Density of air
+etaV=ma/(rhoa*vsi*n*(N/2));
+disp(etaV*100,"The volumetric efficiency is (%):")
+mf = Pc/3600;...............//Fuel consumed per sec
+etaBT = (BP*1000)/(mf*C);
+disp (etaBT*100,"The brake thermal efficiency is (%):")
+T=(BP*60*1000)/(2*(%pi)*N);
+disp (T,"The brake torque (Nm):")