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