From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 1244/CH9/EX9.18/Example918.sce | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100755 1244/CH9/EX9.18/Example918.sce

(limited to '1244/CH9/EX9.18')

diff --git a/1244/CH9/EX9.18/Example918.sce b/1244/CH9/EX9.18/Example918.sce
new file mode 100755
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+++ b/1244/CH9/EX9.18/Example918.sce
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+
+
+// Display mode
+mode(0);
+
+// Display warning for floating point exception
+ieee(1);
+
+clc;
+disp("Principles of Heat Transfer, 7th Ed. Frank Kreith et. al Chapter - 9 Example # 9.18 ")
+
+//Emissivity
+epsilon = 0.8;
+//Stefan's constant
+sigma = 0.1714;
+//Temperature of walls in degree F
+Twall = 440;
+//Temperature indicated ny thermocouple in degree F
+Tt = 940;
+//Heat transfer coefficient in Btu/h ft2 F
+h = 25;
+
+//The temperature of the thermocouple is below the gas temperature because the couple loses heat by radiation to the wall.
+
+//Under steady-state conditions the rate of heat flow by radiation from the thermocouple junction to the wall equals the rate of heat flow by convection from the gas to the couple.
+
+//Using this heat balance, q/A in Btu/h ft2
+q = (epsilon*sigma)*(((Tt+460)/100)^4-((Twall+460)/100)^4);
+
+disp("True gas temperature in degree F")
+//True gas temperature in degree F
+Tg = Tt+q/h
-- 
cgit