Calc current leads

I

ilanhak

Jan 1, 1970
0
Hi,

I don't know if I'm publishing this at the right forum or not. I want to make some basic simulations regarding current leads.

The current lead is made of a cylinderical copper wire with 10 cm diameter and 50 cm length.

From side I have a current supplier which gives me 200 A. It's at a temprature of 300 kelvin

From the other side I have a refrigerator cool head that brings me to 70 kelvin with 40 watts.

I want to build a simulation and see how much loss do I get due to the resistivity and heat transfer (both).


Is there a way to simulate it? Would be glad to get some help.

Ilan.
 

Hero999

Oct 28, 2007
2,433
Joined
Oct 28, 2007
Messages
2,433
The resistance of the copper wire can be calculated using the formulae in the Wikipedia article linked below:
http://en.wikipedia.org/wiki/Electrical_resistivity_and_conductivity

The power dissipation can then be calculated using Ohm's law.

 
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