Heat Transfer clarification of a problem

[Abninfamy]

Homework Statement

We're currently studying steady state one dimensional conduction heat transfer. We've touched on some surface convection, resistances in layers and fins.

I don't think I'll have much issue with this problem once I find this out:

What is a thermal driving force?

 

[Mapes]

What is a thermal driving force?

It's just a fancy way of saying there's a constant temperature difference between one end and the other (and in the other parts, between one side and the other).

 

[Abninfamy]

Thank you very much!