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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 /551/CH15/EX15.18 | |
| 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 '551/CH15/EX15.18')
| -rwxr-xr-x | 551/CH15/EX15.18/18.sce | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/551/CH15/EX15.18/18.sce b/551/CH15/EX15.18/18.sce new file mode 100755 index 000000000..8b9d02686 --- /dev/null +++ b/551/CH15/EX15.18/18.sce @@ -0,0 +1,21 @@ +clc
+m_h=0.2; //kg/s
+m_c=0.5; //kg/s
+t_h1=75; //0C
+t_h2=45; //0C
+t_c1=20; //0C
+hi=650; //W/m^2 0C
+h0=hi;
+cph=4.187;
+cpc=cph;
+
+Q=m_h*cph*(t_h1-t_h2);
+t_c2=m_h*cph/cpc*(t_h1-t_h2)/m_c+t_c1;
+
+theta=((t_h1-t_c1)- (t_h2-t_c2))/log((t_h1-t_c1)/(t_h2-t_c2)); //Logarithmic mean temperature difference
+
+U=hi*h0/(hi+h0);
+A=Q*10^3/U/theta;
+disp("The area of heat exchanger =")
+disp(A)
+disp("m^2")
\ No newline at end of file |