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diff --git a/1808/CH5/EX5.28/Chapter5_Exampl28.sce b/1808/CH5/EX5.28/Chapter5_Exampl28.sce
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+clc
+clear
+//INPUT DATA
+k=0.05;//clearance
+p1=1;//initial pressure in bar
+pd=5.5;//delivery pressure in bar
+n=1.3;//index of compression
+R=0.287;//gas constant
+N=500;//Speed in rpm
+d=0.2;//diameter in m
+t1=293;//temperature in K
+
+//CALCULATIONS
+nv=1+k-k*((pd/p1)^(1/n));//volumetric efficiency in percentage
+va=nv*(3.14*d^3*1.5*N)/4;//Volume of air in m^3/min
+m=p1*va/(R*t1);//mass of air in kg/min
+ip=(n/(n-1))*p1*10^2*(va/60)*((pd/p1)^((n-1)/n)-1);//Power required to run the compressor in kW
+
+//OUTPUT
+printf('(i)Volumetric efficiency %3.4f percentage \n (ii)Power required to run the compressor is %3.2f kW',nv,ip)
+
+
+
+