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Air-driven equipment cooling fan?
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Stefan Simion
electronics forum beginner


Joined: 20 Jul 2006
Posts: 1

PostPosted: Thu Jul 20, 2006 9:58 am    Post subject: Air-driven equipment cooling fan? Reply with quote
Hello,

I am looking for a 'small' (say, up to 10-15 cm diameter) axial
cooling fan, which would be powered by compressed air. Does anyone
make such a thing ? In general how to provide more or less
uniform air cooling of an enclosure, without using electrical-driven
fans ?

Thank you
Stefan Simion
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anno4000@radom.zrz.tu-ber
electronics forum beginner


Joined: 07 Jul 2006
Posts: 4

PostPosted: Thu Jul 20, 2006 10:13 am    Post subject: Re: Air-driven equipment cooling fan? Reply with quote
Stefan Simion <simion@in2p3.fr> wrote in sci.electronics.design:
Quote:
Hello,

I am looking for a 'small' (say, up to 10-15 cm diameter) axial
cooling fan, which would be powered by compressed air.

There must be more efficient ways to generate an air stream from
compressed air than running a fan.

Anno
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Roger Hamlett
electronics forum Guru


Joined: 28 Apr 2005
Posts: 302

PostPosted: Thu Jul 20, 2006 10:29 am    Post subject: Re: Air-driven equipment cooling fan? Reply with quote
"Stefan Simion" <simion@in2p3.fr> wrote in message
news:Pine.LNX.3.96.1060720115149.4150A-100000@ccali33.in2p3.fr...
Quote:
Hello,

I am looking for a 'small' (say, up to 10-15 cm diameter) axial
cooling fan, which would be powered by compressed air. Does anyone
make such a thing ? In general how to provide more or less
uniform air cooling of an enclosure, without using electrical-driven
fans ?

Thank you
Stefan Simion
Nobody is going to bother to do this. Just use the air, with a venturi, to

generate the required volume. More efficient than having an air motor, and
then a fan, both with losses.
Look at:
http://www.iprocessmart.com/itw/cool.htm

Who are specialists in designing air powered cooling, ranging from venturi
systems, through vortex systems (allow cooling below the ambient air
temperature), right up to pumped heat exchangers.

Best Wishes
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Another Wally
electronics forum beginner


Joined: 11 Jul 2006
Posts: 3

PostPosted: Thu Jul 20, 2006 10:53 am    Post subject: Re: Air-driven equipment cooling fan? Reply with quote
"Stefan Simion" <simion@in2p3.fr> wrote in message
news:Pine.LNX.3.96.1060720115149.4150A-100000@ccali33.in2p3.fr...
Quote:
Hello,

I am looking for a 'small' (say, up to 10-15 cm diameter) axial
cooling fan, which would be powered by compressed air. Does anyone
make such a thing ? In general how to provide more or less
uniform air cooling of an enclosure, without using electrical-driven
fans ?

Thank you
Stefan Simion


Have a look at this site....

http://www.tech-sales.com/Nex_Flow/cabinet_cooler.htm it may be a better
solution. By using this device you are feeding what could be
filtered/de-watered air into the enclosure with pressurisation of the
enclosure to eliminate ingress of dust/contaminants, etc.

Google "compressed air venturi mover" and "compressed air venturi conveyor"
and see what you can find.
Here is a link to one unit...
http://www.abgpl.com.au/prod92.htm
and more.....
http://news.thomasnet.com/fullstory/29656/1029
http://www.sunbeltrentals.com/catalog/fr_content_productsubgroup.aspx?pgtype=prdsubgrp&pg=9&psg=239

If you direct direct a 1/8" nozzle down a 6" tube you will create air flow
through the tube at a n air volume significantly higher then the volume out
of the nozzle. Air motors are going to be noisy and require maintenance, an
air nozzle can be designed to make very little noise and maintenance is VERY
minimal.

Hope you find some use from the above.
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Don Lancaster
electronics forum Guru


Joined: 30 Apr 2005
Posts: 416

PostPosted: Thu Jul 20, 2006 7:34 pm    Post subject: Re: Air-driven equipment cooling fan? Reply with quote
Stefan Simion wrote:
Quote:
Hello,

I am looking for a 'small' (say, up to 10-15 cm diameter) axial
cooling fan, which would be powered by compressed air. Does anyone
make such a thing ? In general how to provide more or less
uniform air cooling of an enclosure, without using electrical-driven
fans ?

Thank you
Stefan Simion


Try a Vortex cooler.

Vortec or Exair.

--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email: don@tinaja.com

Please visit my GURU's LAIR web site at http://www.tinaja.com
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Google
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