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

---
 530/CH3/EX3.4.b/example_3_4b.sce | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100755 530/CH3/EX3.4.b/example_3_4b.sce

(limited to '530/CH3/EX3.4.b')

diff --git a/530/CH3/EX3.4.b/example_3_4b.sce b/530/CH3/EX3.4.b/example_3_4b.sce
new file mode 100755
index 000000000..cba9e4da2
--- /dev/null
+++ b/530/CH3/EX3.4.b/example_3_4b.sce
@@ -0,0 +1,29 @@
+clear;
+clc;
+
+// A Textbook on HEAT TRANSFER by S P SUKHATME
+// Chapter 3
+// Thermal Radiation
+
+// Example 3.4(b)
+// Page 123
+printf("Example 3.4(b), Page 123 \n\n")
+
+
+e = 0.08; //emissivity
+T = 800; //temperature, [K]
+
+Stefan_constt = 5.67*10^(-8);    //[W/m^2.K^4]
+// From Stefan Boltzmann law, equation 3.2.10
+q = e*Stefan_constt*T^4;         //[W/m^2]
+in = (q/(%pi));
+
+// (b)
+// Radiant flux emitted in the cone 0 <= pzi <= 50 degree, 0 <= theta <= 2*pi
+q_cone=2*(%pi)*in*(-cos(100*(%pi/180))+cos(0))/4;
+
+printf("\n Radiant flux emitted in the cone =%.1f W/m^2",q_cone);
+
+Ratio = q_cone/q;
+printf("\n Ratio = %.3f",Ratio);
+
-- 
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