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diff --git a/1808/CH2/EX2.17/Chapter2_Example17.sce b/1808/CH2/EX2.17/Chapter2_Example17.sce
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+clc
+clear
+//INPUT DATA
+hc=4;//cylinders
+mf=2;//mass flow rate in g/s
+vd=2.8;//capacity in litres
+N=1500;//speed in rpm
+ta=303;//temperature in K
+Pa=101.325;//atmospheric pressure in kPa
+R=0.287;//gas constant in kJ/kgK
+xs =15.14;//air fuel ratio 
+//C8H18+12.5(O2+3.773N2)=8CO2+9H2O+47.16 N2;//Chemical equation 
+
+//CALCULATIONS
+ma1=xs*mf;//mass of air in g/s
+ma=ma1/50;//mass of air in g/cylinder/cycle
+ro=Pa/(R*ta);//density in kg/m^3
+nv=ma/(ro*vd/4);//Volumetric efficiency
+
+//OUTPUT
+printf('Volumetric effiiciency is %3.4f ',nv)
+
+
+
+
+
+