initial commit / add all books

1 files changed, 26 insertions, 0 deletions

diff --git a/2975/CH28/EX28.5w/Ex28_5w.sce b/2975/CH28/EX28.5w/Ex28_5w.sce
new file mode 100644
index 000000000..20d19fdc0
--- /dev/null
+++ b/2975/CH28/EX28.5w/Ex28_5w.sce
@@ -0,0 +1,26 @@
+//developed in windows 8 operating system 64bit

+//platform Scilab 5.4.1

+//example 28_5w

+

+clc;clear;

+//Given Data

+

+area=100*10^-4;         //Area of the cross section (Unit:m^-2)

+thick_a=0.04;           //Thickness of part A (Unit: m)

+thick_b=0.025;          //Thickness of part B (Unit:m) 

+k_a=200;                //Thermal conductivity of A (Unit: W/m-degree centigrade)

+k_b=400;                //Thermal conductivity of B (Unit: W/m-degree centigrade)

+theta_a=100;            //Temperature at A (Unit:degree centigrade)

+theta_b=0;              //Temperature at B (Unit:degree centigrade)

+

+//calculation

+

+rate_heat_flow=area*(theta_a-theta_b)/(thick_a/k_a+thick_b/k_b);    //Calculation of The rate of heat flow through any cross section (Unit:Watt)

+

+temp=rate_heat_flow*thick_b/(area*k_b);                             //Calculation of The temperature at the interface  (Unit: degree centigrade)

+

+equivalent_k=(thick_a+thick_b)/(thick_a/k_a+thick_b/k_b);           //Calculation of The equivalent thermal conductivity of the compound plate  (Unit: W/m-degree centigrade)

+

+disp(rate_heat_flow,"The rate of heat flow through any cross section is (Unit:Watt)");

+disp(temp,"The temperature at the interface is (Unit: degree centigrade)");

+disp(equivalent_k,"The equivalent thermal conductivity of the compound plate is (Unit: W/m-degree centigrade)");