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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/EX15.29/29.sce | |
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initial commit / add all books
Diffstat (limited to '551/CH15/EX15.29/29.sce')
| -rwxr-xr-x | 551/CH15/EX15.29/29.sce | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/551/CH15/EX15.29/29.sce b/551/CH15/EX15.29/29.sce new file mode 100755 index 000000000..65c137e76 --- /dev/null +++ b/551/CH15/EX15.29/29.sce @@ -0,0 +1,26 @@ +clc
+r1=0.05; //m
+r2=0.1; //m
+r3=0.15; //m
+T1=1000; //K
+T3=500; //K
+e1=0.05;
+e2=e1;
+e3=e1;
+a=5.67*10^(-8);
+
+F_12=1;
+F_23=1;
+
+// A1*a*(T1^4-T2^4)/(((1-e1)/e1) + 1/F_12 + ((1-e2)/e2)*A1/A2) = A2*a*(T2^4-T3^4)/(((1-e2)/e2) + 1/F_23 + ((1-e3)/e3)*A2/A3)
+
+// A1/A2=r1/r2=5/10=0.5
+// A2/A3=r2/r3=10/15=0.67
+
+//Solving this we get
+T2=770; //K
+
+Q1=a*(T1^4-T2^4)/(((1-e1)/e1) + 1/F_12 + ((1-e2)/e2)*r1/r2);
+disp("Heat flow per m2 area of cylinder 1 =")
+disp(Q1)
+disp("W")
\ No newline at end of file |