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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 /2735/CH15/EX15.1 | |
| 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 '2735/CH15/EX15.1')
| -rwxr-xr-x | 2735/CH15/EX15.1/Ex15_1.sce | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/2735/CH15/EX15.1/Ex15_1.sce b/2735/CH15/EX15.1/Ex15_1.sce new file mode 100755 index 000000000..76c44f5fd --- /dev/null +++ b/2735/CH15/EX15.1/Ex15_1.sce @@ -0,0 +1,38 @@ +clc
+clear
+//Initialization of variables
+p1=600 //psia
+p2=0.2563 //psia
+t1=486.21 //F
+t2=60 //F
+fur=0.75
+//calculations
+disp("from steam tables,")
+h1=1203.2
+hf1=471.6
+hfg1=731.6
+h2=1088
+hf2=28.06
+hfg2=1059.9
+s1=1.4454
+sf1=0.6720
+sfg1=0.7734
+s2=2.0948
+sf2=0.0555
+sfg2=2.0393
+xd=(s1-sf2)/sfg2
+hd=hf2+xd*hfg2
+xa=0.3023
+ha=hf2+xa*hfg2
+wbc=0
+wda=0
+wcd=h1-hd
+wab=ha-hf1
+W=wab+wcd+wbc+wda
+Wrev=hfg1- (t2+459.7)*sfg1
+etat=(t1-t2)/(t1+459.7)
+eta=fur*etat
+//results
+printf("Thermal efficiency = %d percent",etat*100)
+printf("\n Furnace efficiency = %.1f percent",eta*100)
+
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