Cold air - Vortex tube.

[arvidj]

(03-29-2013, 02:29 PM)DaveH Wrote: Seems from the Otto site there are some sizes (or ratio of sizes) that are important.

DaveH

There seems to be some theoretical work out there for dimensions but getting thru them would seem like more of a career opportunity than something to do as a hobby ...

http://www.me.berkeley.edu/~gtdevera/not...extube.pdf

http://www.me.berkeley.edu/~gtdevera/not...extube.pdf

And then there is this which at least has dimensions on it ... http://www.visi.com/~darus/hilsch/.