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AirCowPeaCock
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[*] posted on 13-1-2012 at 12:04


Probably irrelevant by now, but for anyone else viewing this thread for the same question, I went to my local surplus store, bought the biggest baddest fan they have there for just 27$, It works like a charm, and 1/4 sash I must have at-least 120 lfm, at its full sash a little gets out, but I rarely need it that high.

[Edited on 1-13-2012 by AirCowPeaCock]



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RonPaul2012
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[*] posted on 6-3-2012 at 06:55


I am helping my friend make a fume hood and we are running into some problems.
I might post pics if I can't figure it out.

Just bumping incase I need it.
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tastyphenome
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[*] posted on 6-3-2012 at 15:58


I know this is a crappy post, but has anyone ever seen an air powered fan? This, while perhaps totally impracticable and expensive, would provide you an indirect motor or sorts.

I am thinking like the small air powered mag stirrers. A low friction bearing, a wheel, and an in/out line for pressurized air to be blown thru.

It seems like loads of pointless work(coal>heat>steam flow>electric>compressor>air flow>fan=airflow) but could be done super cheap if you have an air sources already, and totally sparkless.

http://www.jitlab.com/MAGNETIC-STIRRER-AIR-OPERATED-TURBINE-...
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watson.fawkes
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[*] posted on 7-3-2012 at 04:31


Quote: Originally posted by tastyphenome  
I know this is a crappy post, but has anyone ever seen an air powered fan?
Not so much a fan itself, but pneumatic motors (or air motors) were invented exactly for spark-free operation in hazardous atmospheres. They're rather common; Grainger carries them, for example.
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tastyphenome
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[*] posted on 7-3-2012 at 19:39


i love rediscovering fire... makes me feel so content. no thats not it, dumb. thats it.

=]
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ScienceSquirrel
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13-3-2012 at 05:17
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