Re: Vortex tubes - -50 degree cooling?

Dan A. Davidson ( (no email) )
Wed, 04 Feb 1998 16:36:06 -0700

These are really "Hilsch Tube" and are not over unity. They are based on
injecting compressed air into a conic shaped tube in the middle of the
tube. The air compresses on the smaller end and get hot, the air expands
in the wider end and get cooler. Simple adiabatic expansion and compression.

Sorry, NO MAGIC.
Dan

At 10:54 AM 2/4/98 -0500, you wrote:
>Jer et all,
>
>Though you might be interested in the physics of vortex
>tubes from Exair. No moving parts, just compressed
>air in and one outlet is hot air, the other is cool air - at
>up to -50 degrees?
>
>For a look at the physics of such a tube:
>http://www.exair.com/vortextube/vt_page.htm
>
>Almost worth just buying one to experiment with! I wonder
>if this is similar to vortex overunity generators?
>
>v/r Ken Carrigan
>
>
>
>

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