In order to calcuate the thermal conductivity of liquids, appoximations had to be
made. Also, data were difficult to find. This problem intensifies for calculating the
thermal conductivities of solids. Using the work of
John Cliver and Catherine Hoang, we calculated these thermal conductivities
using curve fitting to already tabulated thermal conductivities. (http://www.owlnet.rice.edu/~ceng402/proj03/choang/ceng402/ceng402.html)
Here is an example of some of the data that they fitted curves to.
Third order curve fitting was applied to the ten solids listed below
and put in a program called kscalc.
-
Silver
-
Copper
-
Iron
-
Lead
-
Gold
-
Aluminum
-
Zinc
-
Tin
-
Ceramic
-
Glass
To verify that this approach gave accurate results, an example from the
book was used with Aluminum as the solid.
>> help kscalc.m
calculates the thermal conductivity of solids
kscalc (temperature, number of compound)
1 silver
2 copper
3 iron
4 lead
5 gold
6 aluminum
7 zinc
8 tin
9 ceramic
10 glass
k is in units watts/m/K
>> kcalc(573.2,2,'s',6)
ans =
231.8211
Answer from the book (pg. 271)
268 W/m/K
|