diff options
Diffstat (limited to '2063/CH1/EX1.21')
| -rwxr-xr-x | 2063/CH1/EX1.21/1_21.sce | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/2063/CH1/EX1.21/1_21.sce b/2063/CH1/EX1.21/1_21.sce new file mode 100755 index 000000000..631cbf688 --- /dev/null +++ b/2063/CH1/EX1.21/1_21.sce @@ -0,0 +1,19 @@ +clc
+clear
+//Input data
+P1=1.03;//Pressure at the beginning of compression stroke in bar
+T1=303;//Initial temperature in K
+P2=40;//Maximum pressure in the cycle in bar
+Q=550;//The heat supplied during the cycle in kJ/kg
+r=1.4;//Isentropic compression ratio
+Cp=1.004;//Specific heat at constant pressure in kJ/kg K
+
+//Calculations
+r1=(P2/P1)^(1/r);//Compression ratio
+T2=(P2/P1)^((r-1)/r)*T1;//Temperature at the end of compression stroke in K
+T3=(Q/Cp)+T2;//Temperature at the end of heat addition in K
+rho=T3/T2;//Cut off ratio
+n=(1-(1/r1^(r-1))*(1/r)*(rho^r-1)/(rho-1))*100;//Air standard efficiency in percentage
+
+//Output\n
+printf('(a)Compression ratio is %3.2f \n (b)Temperature at the end of compression is %3.1f K\n (c)Temperature at the end of comstant pressure heat addition is %3.0f K \n (d)Air standard efficiency is %3.2f percent',r1,T2,T3,n)
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