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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /534/CH8/EX8.2 | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '534/CH8/EX8.2')
| -rw-r--r-- | 534/CH8/EX8.2/8_2_Internal_flow.sce | 25 |
1 files changed, 25 insertions, 0 deletions
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 |