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////Chapter 13 Steam Engines
////Example 13.5 Page No 286
///Find Mean effective pressure
//Input data
clc;
clear;
a=25; //Area of indicator diagram cm^2
Vs=0.15; //swept volume m^2
S=1; //Scale in cm
cm=0.02; //pressure axis m^3
///Calculation
b=Vs/cm; //Base length of diagram
Pm=a/b*S; //Mean effective pressure
//Output
printf('Base length of diagram=%f bar \n',b);
printf('Mean effective pressure= %f bar \n',Pm);
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