Thermal Conductivity Calculation Problems

[Muttzy]

I am trying to write a program that calculates the thermal conductivity of the material that I enter but it seems like I am having a problem with the temperature units and I was wondering if anyone here had an idea as to how to fix my problem.

I enter the data in a table and use cspline to find what the value should be between my data points but I ran into a problem with the units. It runs just fine when I do not include any units but when I tested it with all the units the values are off. I have included my equations with a test value.

Does anyone know what I am doing wrong?

 

[Muttzy]

I forgot - the program I am using is MathCAD 15.

 

[IRstuff]

Your usage of units is not consistent; you used deltaF in the definition of your function, but you called it with F only.

However, while programming is great, and all that, it's unnecessary in this case:

http://files.engineering.com/getfil...7c-74e472199d0b&file=Therm_Cond_Prob_mod.xmcd

TTFN
faq731-376

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