Re: Ranque-Hilsche Vortex tube

[brian whatcott <inet@INTELLISYS.NET>]

At 20:33 4/24/00 -0500, I wrote:
> Hilsch's graph shown there, shows he produced the lowest cold
> tube temperature when the cold air mass rate was limited to
> between 0.2 and 0.4 of the total mass flow for his particular tubes.
> That was -40degC at 10 atm input pressure.
>
> The model drawn by Roger Hayward for Stong was capable of +38degC
> and -56degC when optimized for balanced performance, or 175degC
> when optimized for hot air....

> There is now one or more commercial product available.....


I ran across some commercial offerings in Reid Tool Supply Cat:
(1-800-436-1145)

Spot Air Coolers
50 degF below ambient, uses 8 scfm, 100 psi max   $160

85 to 100 degF below ambient, adjustable, uses 15scfm  $326

Spot Air Heater
250 degF air uses 15, 20 or 35 scfm   $361


brian whatcott <inet@intellisys.net>
Altus OK