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

---
 405/CH3/EX3.2/3_2.sce | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100755 405/CH3/EX3.2/3_2.sce

(limited to '405/CH3/EX3.2')

diff --git a/405/CH3/EX3.2/3_2.sce b/405/CH3/EX3.2/3_2.sce
new file mode 100755
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+++ b/405/CH3/EX3.2/3_2.sce
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+clear;
+clc;
+printf("\t\t\tExample Number 3.2\n\n\n");
+// cubical furnace
+// illustration3.2
+// solution
+
+a = 0.5;// [m] length of side of cubical furnace
+Ti = 500;// [degree celsius] inside furnace temperature
+To = 50;// [degree celsius] outside temperature
+k = 1.04;// [W/m per degree celsius] thermal conductivity of fireclay brick 
+t = 0.10;// [m] wall thickness
+A = a*a;// [square meter] area of one face 
+// we compute the total shape factor by adding the shape factors for the walls, edges and corners
+Sw = A/t;// [m] shape factor for wall
+Se = 0.54*a;// [m] shape factor for edges
+Sc = 0.15*t;// [m] shape factor for corners
+// there are six wall sections, twelve edges and eight corners, so the total shape factor S is
+S = 6*Sw+12*Se+8*Sc;// [m]
+// the heat flow is calculated as 
+q = k*S*(Ti-To);// [W]
+printf("heat lost through the walls is %f kW",q/1000);
-- 
cgit