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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 /2471/CH6/EX6.9/Ex6_9.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 '2471/CH6/EX6.9/Ex6_9.sce')
| -rwxr-xr-x | 2471/CH6/EX6.9/Ex6_9.sce | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/2471/CH6/EX6.9/Ex6_9.sce b/2471/CH6/EX6.9/Ex6_9.sce new file mode 100755 index 000000000..72f78c3f3 --- /dev/null +++ b/2471/CH6/EX6.9/Ex6_9.sce @@ -0,0 +1,30 @@ +clear ;
+clc;
+// Example 6.9
+printf('Example 6.9\n\n');
+printf('Page No. 157\n\n');
+
+// given
+P = 10;// Boiler pressure in bar
+Ts = 180;// Steam temperature in degree celcius
+Tf = 80;// Feed water temperature in degree celcius
+X = 0.95;// Steam dryness fraction
+m_s = 4100;// steam rate in kg/h
+m_f = 238;// Gas rate in kg/h
+G_CV = 53.5*10^6;// In J/kg
+N_CV = 48*10^6;//in J/kg
+
+//from steam table,AT 10 bar and at temperature T = Ts
+h2 = (763+(X*2013))*10^3;//Specific enthalpy of steam in J/kg
+//At temperature T = Tf
+h1 = 335*10^3;//Specific enthalpy of feed steam in J/kg
+
+E_G = ((m_s*(h2-h1)*100)/(m_f*G_CV));//
+printf('The gross efficiency percentage is %.0f \n',E_G)
+
+
+E_N = ((m_s*(h2-h1)*100)/(m_f*N_CV));//
+printf('The net efficiency percentage is %.0f',E_N)
+
+
+
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