diff options
Diffstat (limited to '2063/CH1/EX1.28/1_28.sce')
| -rwxr-xr-x | 2063/CH1/EX1.28/1_28.sce | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/2063/CH1/EX1.28/1_28.sce b/2063/CH1/EX1.28/1_28.sce new file mode 100755 index 000000000..ec5f57ce3 --- /dev/null +++ b/2063/CH1/EX1.28/1_28.sce @@ -0,0 +1,19 @@ +clc
+clear
+//Input data
+P1=1;//Initial pressure of an enfine working on a dual combustion cycle in bar
+T1=318;//Initial temperature before compression in K
+r1=14;//Compression ratio
+r=1.4;//Isentropic index
+a=2;//Pressure ratio in the compression process
+rho=2;//Cut off ratio
+
+//Calculations
+T2=T1*r1^(r-1);//Temperature at the end of compression stroke in K
+T3=T2*a;//Temperature at the end of constant volume heat addition in K
+T4=rho*T3;//Temperature at the end of constant pressure heat addition in K
+T5=T4*(rho/r1)^(r-1);//Temperature at the end of isentropic compression in K
+n=(1-((T5-T1)/(r*(T4-T3)+(T3-T2))))*100;//Efficiency of an engine working on a dual combustion cycle in percent
+
+//Output
+printf('(a)Temperature at the end of compression stroke is %3.0f K\n (b)Temperature at the end of constant volume heat addition is %3.0f K\n (c)Temperature at the end of constant pressure heat addition is %3.0f K\n (d)Temperature at the end of isentropic expansion process is %3.0f K\n (e)Efficiency of the cycle is %3.2f percent',T2,T3,T4,T5,n)
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