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diff --git a/1808/CH1/EX1.22/Chapter1_Example22.sce b/1808/CH1/EX1.22/Chapter1_Example22.sce
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+clc
+clear
+//INPUT DATA
+BP=50;//Brake power in kW
+bmepp=700;//mean effective pressure pickup van
+bmept=850;//mean effective pressure typical
+nc=4;//4-stroke cylinder
+n=2;//for 4 cyliners 
+Sp=8;//mean piston speed
+N=3000;//speed in rpm
+L=0.107;//stroke in m
+
+//CALCULATIONS
+Nm=Sp/(2*L);//Design speed in rps
+db=(BP*n/(bmepp*4*Nm*3.14/4))^(1/3);//bore diameter in m^3
+Vt=(3.14*(db^3)*nc/4);//Capacity of the engine in litres
+Tm=(bmept*Vt)/(2*3.14*n);//Maximum torque in kNm
+
+//OUTPUT
+printf('(i)Design speed %3.2f rps \n (ii)capacity of the engine %3.5f m^3 \n (iii)Maximum torque is %3.2f kNm',Nm,Vt,Tm)
+