From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001
From: prashantsinalkar
Date: Tue, 10 Oct 2017 12:27:19 +0530
Subject: initial commit / add all books

---
 534/CH8/EX8.2/8_2_Internal_flow.sce | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 534/CH8/EX8.2/8_2_Internal_flow.sce

(limited to '534/CH8/EX8.2')

diff --git a/534/CH8/EX8.2/8_2_Internal_flow.sce b/534/CH8/EX8.2/8_2_Internal_flow.sce
new file mode 100644
index 000000000..3ad632e03
--- /dev/null
+++ b/534/CH8/EX8.2/8_2_Internal_flow.sce
@@ -0,0 +1,25 @@
+clear;
+clc;
+printf('FUNDAMENTALS OF HEAT AND MASS TRANSFER \n Incropera / Dewitt / Bergman / Lavine \n EXAMPLE 8.2   Page 499 \n'); //Example 8.2
+// Length of tube needed to achieve the desired outlet temperature
+//Local convection coefficient at the outlet
+
+//Operating Conditions
+m = .1;            //[kg/s] mass flow rate of water
+Ti = 20+273;       //[K] Inlet temp
+To = 60+273;       //[K] Outlet temperature
+Di = .02;          //[m] Inner Diameter
+Do = .04;          //[m] Outer Diameter
+q = 10^6;          //[w/m^3]  Heat generation Rate
+Tsi = 70+273;      //[K] Inner Surface Temp
+//Table A.4 Air Properties T = 313 K
+cp = 4179;          //[J/kg.K] specific heat
+
+L = 4*m*cp*(To-Ti)/(%pi*(Do^2-Di^2)*q);
+
+//From Newtons Law of cooling, Equation 8.27, local heat convection coefficient is
+h = q*(Do^2-Di^2)/(Di*4*(Tsi-To));
+
+printf("\n Length of tube needed to achieve the desired outlet temperature = %.1f m \n Local convection coefficient at the outlet = %i W/m^2.K",L,h);
+
+//END
\ No newline at end of file
-- 
cgit