Can anybody explain the Dufour Effect to me for applicative purposes?

Question

I know this effect is described as the difference in temperature that occurs in diffusive mixing of 2 non-interactive gases (for example hydrogen and nitrogen).
I have found articles about that, but they are too complicated for a person who is not an expert in physics.
I just need examples on how this effect can be applied, and a (simple) formula which tells me how to calculate this effect in mixing gases.

Answer 1

I couldn't find a formula, but the theory is discussed in relation to liquids, and as a statistical dynamics problem, in refs. 1 and 2. (Ref. 1 may download automatically; if not click the manual download link.) Ref. 3 describes a diffusion model for liquid-fueled rocket combustion that includes the Dufour effect. Ref. 4 mentions the Soret and Dufour effects as being of interest in a supercritical gas turbine fuel-injection study at Georgia Tech. Since most of the web references I found seemed to think the Dufour effect is insignificant to their particular discipline, I consider these last two finds a triumph!