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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 /2837/CH20/EX20.3 | |
| 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 '2837/CH20/EX20.3')
| -rwxr-xr-x | 2837/CH20/EX20.3/Ex20_3.sce | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/2837/CH20/EX20.3/Ex20_3.sce b/2837/CH20/EX20.3/Ex20_3.sce new file mode 100755 index 000000000..9f7664da3 --- /dev/null +++ b/2837/CH20/EX20.3/Ex20_3.sce @@ -0,0 +1,29 @@ +clc
+clear
+//Initalization of variables
+p=40000 //kW
+ef=0.98
+rate=302000 //lb
+s3=1.6001
+h2=1490.1
+loss=600
+v=400 //ft/s
+g=32.2 //ft/s^2
+J=778
+//calculations
+out=p/(0.746*ef)
+srate=rate/out
+X=-(s3-1.9782)/1.8456
+h3=1106 - X*1036.3
+theoturb=h2-h3
+intturb=(out+loss)*2544/rate
+Ie=intturb/theoturb *100
+h3d=h2-intturb-v^2 /(2*g*J)
+hex=h3d+ v^2 /(2*g*J)
+excess=rate*(hex-h3)
+//results
+printf("Steam rate = %.2f lb/shaft hp-hr",srate)
+printf("\n Internal engine efficiency = %.1f percent",Ie)
+printf("\n Enthalpy of exhaust steam = %.1f Btu/lb",h3d)
+printf("\n Excess heat to be removed = %d Btu/hr",excess)
+disp("The answers are a bit different due to rounding off error in textbook")
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