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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 /1460/CH8/EX8.5 | |
| 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 '1460/CH8/EX8.5')
| -rwxr-xr-x | 1460/CH8/EX8.5/8_5.sce | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/1460/CH8/EX8.5/8_5.sce b/1460/CH8/EX8.5/8_5.sce new file mode 100755 index 000000000..3a45967b6 --- /dev/null +++ b/1460/CH8/EX8.5/8_5.sce @@ -0,0 +1,33 @@ +clc
+//initialization of variables
+P=14.7 //lb/in^2
+T=60+460 //R
+e1=0.8
+P2=3 //lb/in^2
+T2=1600+460 //R
+Pt4=15.6 //lb/in^2
+w=60 //lbm/sec
+e2=0.85
+//calculations
+disp("from table 6, initial conditions are")
+ht1=124.3
+Prt1=1.215
+Prt2s=6*Prt1
+ht2s=207.6
+ht2=ht1+(ht2s-ht1)/e1
+dht1=(ht2s-ht1)/e1
+ht3=521.4
+Prt3=196.2
+Pt3=6*P-P2
+Pratio=Pt3/Pt4
+Prt4s=Prt3/Pratio
+ht4=326.5
+dht3=e2*(ht3-ht4)
+W=778*(dht3-dht1)
+Q=ht3-ht2
+etaf=W/778/Q
+Wdot=w*W/550
+//results
+printf("Thermal efficiency = %.3f",W)
+printf("\n Horsepower output = %d hp",Wdot)
+//The answers in the textbook are a bit different due to rounding off error in the book
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