//Pressure at start of suction stroke(in bar)
p1=1
//Compression ratio
rc=6;
//Index of compression 
n=1.3;
//Temperature at start (in kelvin)
t1=330;
//Caloric Value (in kJ)
CV=42000;
//Air - fuel ratio
AF=15;
//Specific heat(in kJ)
Cv=0.717;
//Specific heat at constant volume varies accordind to the law Cvmean=x+y*T
x=0.678;
y=13*10^-5;