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

---
 1073/CH2/EX2.39/2_39.sce | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100755 1073/CH2/EX2.39/2_39.sce

(limited to '1073/CH2/EX2.39/2_39.sce')

diff --git a/1073/CH2/EX2.39/2_39.sce b/1073/CH2/EX2.39/2_39.sce
new file mode 100755
index 000000000..575b14bb7
--- /dev/null
+++ b/1073/CH2/EX2.39/2_39.sce
@@ -0,0 +1,20 @@
+
+clc;
+clear;
+//Example 2.39
+//Given
+h=11.36    //W/sq m.K
+k=43.3    //w/(m.K)
+r=25.4    //radius in mm
+r=r/1000    // radius in m
+A=4*%pi*r^2    //Area of sphere [sq m]
+V=A*r/3    //Volume in [cubic m]
+rho=7849    //kg/cubic m
+Cp=0.4606*10^3    //J/kg.K
+t=1    //hour
+t=t*3600    //seconds
+T_inf=394.3    //[K]
+T0=700    //[K]
+// (T-T_inf)/(T0-T_inf)=e^(-3*h*t/rho*Cp*V)
+T=T_inf+(T0-T_inf)*(%e^((-h*A*t)/(rho*Cp*V)));
+printf("Temperature of ball after 1 h= %f K (%f degree C)",T,T-273)
-- 
cgit