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Diffstat (limited to '3821/CH14/EX14.15')
-rw-r--r-- | 3821/CH14/EX14.15/Example14_15.sce | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/3821/CH14/EX14.15/Example14_15.sce b/3821/CH14/EX14.15/Example14_15.sce new file mode 100644 index 000000000..436bbf20f --- /dev/null +++ b/3821/CH14/EX14.15/Example14_15.sce @@ -0,0 +1,32 @@ +////Chapter No 14 Air Standard Cycles
+////Example No 14.15 Page No 317
+///Find maximum temperatureof the cycle
+//Input data
+clc;
+clear;
+P1=0.1; //Diesel cycle is supplied# with air in MPa
+T1=40+273; //Diesel cycle is supplied with temperature in degree celsius
+r=18; //Compression ratio
+Qs=1500; //Heat supplied
+v1=18;
+v2=1;
+Cp=1.005;
+gamma1=1.4;
+
+
+//Calculation
+T2=T1*((v1/v2)^(gamma1-1)); //For isentropic process the temperature is
+P2=P1*((v1/v2)^(gamma1)); //For isentropic process the pressure is
+T3=(Qs/Cp)+T2; //Maximum temperatureof the cycle
+rho=T3/T2; //Cut-off ratio
+//Air standard efficiency
+eta=(1-(1/r^(gamma1-1))*((1/gamma1)*(((rho^(gamma1))-1)/(rho-1))))*100;
+NWD=(Qs*eta)*10^-2; //Net work done
+
+//Output
+printf('for isentropic process the temperature= %f K \n',T2);
+printf('for isentropic process the pressure= %f MPa \n',P2);
+printf('maximum temperatureof the cycle= %f K \n ',T3);
+printf('cut-off ratio= %f MPa \n',rho);
+printf('air standard efficiency= %f percent \n',eta);
+printf('net work done= %f KJ/Kg \n',NWD);
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