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Diffstat (limited to '1226/CH3/EX3.40/EX3_40.sce')
-rwxr-xr-x | 1226/CH3/EX3.40/EX3_40.sce | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/1226/CH3/EX3.40/EX3_40.sce b/1226/CH3/EX3.40/EX3_40.sce new file mode 100755 index 000000000..8afe73bc6 --- /dev/null +++ b/1226/CH3/EX3.40/EX3_40.sce @@ -0,0 +1,30 @@ +clc;funcprot(0);//EXAMPLE 3.40
+// Initialisation of Variables
+p1=1;...........//pressure before isothermal compression in bar
+t1=310;.........//temperature before isothermal compression in K
+p3=16;.........//pressure before isothermal expansion in bar
+t3=930;.........//temperature before isothermal expansion in K
+R=287;.............//Gas constant in kJ/kgK
+//Calculations
+v1=(R*t1)/(p1*10^5);...............//Volume before isothermal compression in m^3
+v3=(R*t3)/(p3*10^5);...............//Volume before isothermal expansion in m^3
+v2=v3;v4=v1;.................//2-3 and 1-4 are isochoric processes
+r=v1/v2;...................//Compression ratio
+q12=R*t1*log(r);...............//Work done and heat rejected in process 1-2
+w12=q12;
+disp(q12/1000,"Work done in process 1-2 in kJ/kg:")
+disp(w12/1000,"Heat rejected in process 1-2 in kJ/kg:")
+q23=0;w23=q23;..................//COnstant volume process and hence work done is zero
+disp(q23/1000,"Work done in process 2-3 in kJ/kg:")
+disp(q23/1000,"Heat rejected in process 2-3 in kJ/kg:")
+q34=R*t3*log(r);...............//Work done and heat rejected in process 1-2
+w34=q34;
+disp(q34/1000,"Work done in process 3-4 in kJ/kg:")
+disp(w34/1000,"Heat rejected in process 3-4 in kJ/kg:")
+q41=q34-q12;w41=q41;
+disp(q41/1000,"Work done in process 4-1 in kJ/kg:")
+disp(w41/1000,"Heat rejected in process 4-1 in kJ/kg:")
+etath=w41/q34;.....................//Thermal efficiency
+disp(etath*100,"Thermal efficiency of the cycle in %:")
+
+
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