diff options
| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /534/CH4/EX4.1 | |
| 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/CH4/EX4.1')
| -rw-r--r-- | 534/CH4/EX4.1/4_1_Eccentric_Wire.sce | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/534/CH4/EX4.1/4_1_Eccentric_Wire.sce b/534/CH4/EX4.1/4_1_Eccentric_Wire.sce new file mode 100644 index 000000000..97ff4e5de --- /dev/null +++ b/534/CH4/EX4.1/4_1_Eccentric_Wire.sce @@ -0,0 +1,21 @@ +clear;
+clc;
+printf('FUNDAMENTALS OF HEAT AND MASS TRANSFER \n Incropera / Dewitt / Bergman / Lavine \n EXAMPLE 4.1 Page 211 \n'); //Example 4.1
+// Thermal resistance of wire coating associated with peripheral variations in coating thickness
+
+d = .005; //[m] Diameter of wire
+k = .35; //[W/m.K] Thermal Conductivity
+h = 15; //[W/m^2.K] Total coeff with Convection n Radiation
+
+rcr = k/h; // [m] critical insulation radius
+tcr = rcr - d/2; // [m] critical insulation Thickness
+
+Rtcond = 2.302*log10(rcr/(d/2))/(2*%pi*k); //[K/W] Thermal resistance
+
+//Using Table 4.1 Case 7
+z = .5*tcr;
+D=2*rcr;
+Rtcond2D = (acosh((D^2 + d^2 - 4*z^2)/(2*D*d)))/(2*%pi*k);
+
+printf("\n\n The reduction in thermal resistance of the insulation is %.2f K/W ", Rtcond-Rtcond2D);
+//END
\ No newline at end of file |