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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 /2519/CH19/EX19.2 | |
| 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 '2519/CH19/EX19.2')
| -rwxr-xr-x | 2519/CH19/EX19.2/Ex19_2.sce | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/2519/CH19/EX19.2/Ex19_2.sce b/2519/CH19/EX19.2/Ex19_2.sce new file mode 100755 index 000000000..18fcbd3ff --- /dev/null +++ b/2519/CH19/EX19.2/Ex19_2.sce @@ -0,0 +1,23 @@ +clc
+clear
+//Initialization of variables
+r1=4.035 //in
+r2=4.312 //in
+r3=5.312 //in
+r4=6.812 //in
+k12=25 //Btu/hr ft F
+k23=0.05 //Btu/hr ft F
+k34=0.04 //Btu/hr ft F
+t1=625 //F
+t4=125 //F
+l=100 //ft
+hr=1.7 //Btu/hr ft^2 F
+//calculations
+Rs=1/(2*%pi*l) *(log(r2/r1) /k12+log(r3/r2) /k23 +log(r4/r3) /k34)
+Qd=(t1-t4)/Rs
+dt=Qd*12/(hr*%pi*2*l*6.812)
+t0=t4-dt
+//results
+printf("Heat loss = %d Btu/hr",Qd)
+printf("\n Temperature required = %d F",t0)
+disp("The answers given in the textbook are a bit different due to rounding off error")
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