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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 /1775/CH2/EX2.8 | |
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initial commit / add all books
Diffstat (limited to '1775/CH2/EX2.8')
| -rwxr-xr-x | 1775/CH2/EX2.8/Chapter2_Example8.sce | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/1775/CH2/EX2.8/Chapter2_Example8.sce b/1775/CH2/EX2.8/Chapter2_Example8.sce new file mode 100755 index 000000000..f6316a233 --- /dev/null +++ b/1775/CH2/EX2.8/Chapter2_Example8.sce @@ -0,0 +1,34 @@ +//Chapter-2, Illustration 8, Page 64
+//Title: Gas Power Cycles
+//=============================================================================
+clc
+clear
+
+//INPUT DATA
+d=0.15;//Bore in m
+L=0.25;//Stroke in m
+Vc=400*(10^-6);//Clearance volume in m^3
+V2=Vc;//Clearance volume in m^3
+c1=0.05;//Cut-off percentage 1
+c2=0.08;//Cut-off percentage 2
+y=1.4;//Ratio of specific heats
+
+//CALCULATIONS
+Vs=(3.147/4)*(d^2)*L;//Stroke volume in m^3
+V31=V2+(c1*Vs);//Volume at the point of cut-off in m^3
+rc1=V31/V2;//Cut-off ratio 1
+rv=(Vc+Vs)/Vc;//Compression ratio
+nth1=(1-(((rc1^y)-1)/((rv^(y-1))*y*(rc1-1))))*100;//Air standard efficiency 1
+V32=V2+(c2*Vs);//Volume at the point of cut-off in m^3
+rc2=V32/V2;//Cut-off ratio 2
+nth2=(1-(((rc2^y)-1)/((rv^(y-1))*y*(rc2-1))))*100;//Air standard efficiency 2
+pl=nth1-nth2;//Percentage loss in efficiency
+
+//OUTPUT
+mprintf('Air standard efficiency at 5 percent cut-off is %3.2f percent \n Air standard efficiency at 8 percent cut-off is %3.2f percent \n Percentage loss in efficiency is %3.2f percent',nth1,nth2,pl)
+
+
+
+
+
+//==============================END OF PROGRAM=================================
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