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////Chapter No 14 Air Standard Cycles
////Example No 14.14 Page No 317
///Find air standard efficiency
//Input data
clc;
clear;
T1=50+273; //Temperature at the beginning of the compression
T2=700+273; //Temperature at the end of the compression
T3=2000+273; //Temperature at the beginning of the expansion
gamma1=1.4;
//Calculation
r=((T2/T1)^(1/(gamma1-1))); //Compression ratio
rho=(T3/T2); //Cut-off ratio
K=((rho-1)/(r-1)); //Also cut-off ratio
//Air standard efficiency
eta=(1-(1/r^(gamma1-1))*((1/gamma1)*(((rho^(gamma1))-1)/(rho-1))))*100;
//Output
printf('compression ratio= %f \n',r);
printf('cut-off ratio= %f \n',rho);
printf('also cut-off ratio= %f \n',K);
printf('air standard efficiency= %f percent',eta);
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