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+clc
+clear
+//INPUT DATA
+n=1.4;//index of compression
+m=0.1436;//mass of air
+R=0.287;//gas constant
+t1=283;//temperature in K
+t2=303;//temperature in K
+p1=1;//pressure in bar
+pd=30;//delivery pressure in bar
+v1=0.1167;//volume in m^3/s
+nm=0.9;//mechanical efficiency in percentage
+
+//CALCULATIONS
+ip=(n/(n-1))*m*R*((2*sqrt(t1*t2)*((pd/p1)^((n-1)/(2*n))))-(t1+t2));//power required for a compound air compressor
+bp=ip/nm;//Brake power in kW
+
+//OUTPUT
+printf('(i)power required for a compound air compressor %3.4f kW \n (ii)Brake power is %3.2f kW',ip,bp)
+
+
+
+
+
+
+