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

---
 2471/CH4/EX4.3/Ex4_3.sce | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100755 2471/CH4/EX4.3/Ex4_3.sce

(limited to '2471/CH4/EX4.3')

diff --git a/2471/CH4/EX4.3/Ex4_3.sce b/2471/CH4/EX4.3/Ex4_3.sce
new file mode 100755
index 000000000..58b696245
--- /dev/null
+++ b/2471/CH4/EX4.3/Ex4_3.sce
@@ -0,0 +1,27 @@
+clear ;
+clc;
+// Example 4.3
+printf('Example 4.3\n\n');
+printf('Page No. 90\n\n');
+
+// given
+K1 = 26;// Thermal Conductivity  of stainless steel in W/m-K
+K2 = 0.038;// Thermal Conductivity  of insulaton in W/m-K
+L1 = 3*10^-3;// thickness of stainless steel in metre
+L2 = 40*10^-3;// thickness of insulation in metre
+T1 = 105;// in degree celcius
+T2 = 25;// in degree celcius
+L = 15;// Length of pipe in metre
+d1 = 50*10^-3;// Internal diameter of pipe in metre
+d2 = 56*10^-3;// External diameter of pipe in metre
+
+r1 = d1/2;// in metre
+r2 = d2/2;// in metre
+
+rm_p = ((r2-r1)/log(r2/r1));// logarithmic mean radius of pipe in m
+rm_i = (((r2+L2)-r2)/log((r2+L2)/r2));// logarithmic mean radius of insulation in m
+
+//By Fourier law of conduction
+Q = (((T1-T2)/((L1/(K1*2*%pi*rm_p))+(L2/(K2*2*%pi*rm_i)))));// in W/m
+Q_L = Q*L;
+printf('The rate of conductive heat transfer per 15 m length of pie is %3.2f W\n',Q_L)// Deviation in answer due to direct substitution
-- 
cgit