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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /2657/CH3/EX3.1/Ex3_1.sce | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '2657/CH3/EX3.1/Ex3_1.sce')
| -rwxr-xr-x | 2657/CH3/EX3.1/Ex3_1.sce | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/2657/CH3/EX3.1/Ex3_1.sce b/2657/CH3/EX3.1/Ex3_1.sce new file mode 100755 index 000000000..7613d8f65 --- /dev/null +++ b/2657/CH3/EX3.1/Ex3_1.sce @@ -0,0 +1,21 @@ +//Effect of variable specific heat on efficiency
+clc,clear
+//Given:
+r=7 //Compression ratio
+g=1.4 //Specific heat ratio(gamma)
+cv=0.718 //(Assume)Specific heat at constant volume in kJ/kgK
+dcv=1*cv/100 //Change in specific heat in kJ/kgK
+//Solution:
+R=cv*(g-1) //Specific gas constant in kJ/kgK
+eta=round(100*(1-1/r^(g-1)))/100 //Efficiency when there is no change in specific heat
+function [eta]=Otto(cv) //Defining efficiency as a function of specific heat
+ eta=1-1/r^(R/cv)
+endfunction
+funcprot(0)
+detaBydcv=derivative(Otto,cv) //Derivative of efficiency wrt to specific heat at initial value of specific heat
+detaByeta=detaBydcv*dcv/eta //Change in efficiency wrt to initial value of efficiency
+//Results:
+printf("\n The percentage change in the efficiency of Otto cycle = %.3f percent",detaByeta*100)
+if (detaByeta < 0) then
+ disp("decrease")
+end
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