I love Wikipedia. It makes me feel like the kid I was sitting in the library pouring through research materials. Yeah, I'd rather be there than out playing.

But this is what makes me excited now:
http://en.wikipedia.org/wiki/Absorption_refrigerator
http://en.wikipedia.org/wiki/Einstein_refrigerator

I've been looking for ways to adapt this into powered systems, to lower the expense of the power used. It's just an interesting alternative that I continue to explore.

And then of course, there are Vortex tubes, and wondering how they could be added into a refrigerant system. Somewhere in the proximity of the evaporator, and dumping the heat off to the condenser.

Shingoshi