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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 /405/CH8/EX8.2 | |
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initial commit / add all books
Diffstat (limited to '405/CH8/EX8.2')
| -rwxr-xr-x | 405/CH8/EX8.2/8_2.sce | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/405/CH8/EX8.2/8_2.sce b/405/CH8/EX8.2/8_2.sce new file mode 100755 index 000000000..5a0a6e272 --- /dev/null +++ b/405/CH8/EX8.2/8_2.sce @@ -0,0 +1,28 @@ +clear;
+clc;
+printf("\t\t\tExample Number 8.2\n\n\n");
+// heat transfer between black surfaces
+// Example 8.2 (page no.-389-390)
+// solution
+
+L = 1;// [m] length of black plate
+W = 0.5;// [m] width of black plate
+T1 = 1000+273;// [K] first plate temperature
+T2 = 500+273;// [K] second plate temperature
+sigma = 5.669*10^(-8);// [W/square meter K^(4)]
+// the ratios for use with figure 8-12(page no.-386) are
+Y_by_D = W/W;
+X_by_D = L/W;
+// so that
+F12 = 0.285;// radiation shape factor
+// the heat transfer is calculated from
+q = sigma*L*W*F12*(T1^(4)-T2^(4));
+printf("net radiant heat exchange between the two plates is %f kW",q/1000);
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