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Posted by Bruce L. Bergman on April 6, 2008, 5:48 pm
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On Sun, 06 Apr 2008 16:40:47 -0400, Joseph Gwinn
>> At work, we have used vortex air tubes to blow chilled air onto specialty
>> materials cut in the screw machines. This is the same basic thing as a
>> personal backpack air conditioner for use in media blasting suits and such.
>> See
>>
>> http://en.wikipedia.org/wiki/Vortex_tube
>
>I bet it takes a LARGE compressor to stay ahead of a vortex tube.
They have them - Most big production shops use lots of air and have
multiple 25-HP or larger screw type compressors to supply it. And
they run the primary in continuous unloader mode and cut in the
secondaries as needed, and they are usually on a sequencer to spread
the run-time and wear around.
Or there's a manual switch so the plant maintenance person can swap
the starting order weekly.
They might have a small 10-HP piston unit as the "Oh Shit" backup,
and to supply any needed nights and weekends air use loads.
There are "Small" vortex tubes that only take 2 CFM to 8 CFM @100
PSI, and that's well within the range of a 5 'real' HP (Not "5 Sears
HP") 2-stage compressor. One at a time of course, and realize that
you are wasting a lot of energy compressing shop air just to get that
little bit of cold air out the end.
--<< Bruce >>--
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>> materials cut in the screw machines. This is the same basic thing as a
>> personal backpack air conditioner for use in media blasting suits and such.
>> See
>>
>> http://en.wikipedia.org/wiki/Vortex_tube