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Author: Subject: Fume Hood Exhaust Fan
Abromination
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[*] posted on 5-5-2019 at 17:23
Fume Hood Exhaust Fan


I've been designing a proper fumehood to replace the fume extractor I have right now, and have been looking for a good fan. So far I like the looks of this for its price, CFM and its speed controller. As I often do, I would first like a second opinion on the fan.
https://www.amazon.com/Inline-Fan-Built-Controller-Pre-Wired...
Sorry for the long link, I'm in a hurry on my phone right now.




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battoussai114
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[*] posted on 5-5-2019 at 18:42


I'd personally use a centrifugal pump and mitigate the trouble of corrosive gases eating the motor away.



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Abromination
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[*] posted on 5-5-2019 at 20:19


Could the motor in an inline fan like this spark a fire?



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Ubya
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[*] posted on 6-5-2019 at 07:05


Quote: Originally posted by Abromination  
Could the motor in an inline fan like this spark a fire?


it's best to keep the motor outside the flow of air and corrosive/flamable gases





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Abromination
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[*] posted on 7-5-2019 at 20:03


Here is a better option, a squirl cage blower with an outer motor. My concerns involve the diameter of the input and output although the CFM is appropriate and still variable.

On another note, I was wondering what advice you guys have on baffels. For a 30x18x22 inch hood (WxLxH), what configuration would be the best? I am planning on having the fan directly on top of the hood.




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Elements Collected: H, Li, C, N, O, Mg, Al, Si, P, S, Fe, Ni, Cu, Zn, Ag, I, Au, Pb, Bi, Am
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Abromination
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[*] posted on 8-5-2019 at 15:25


https://www.amazon.com/gp/aw/d/B07L5TWRVG/ref=sspa_mw_detail...



List of materials made by ScienceMadness.org users:
https://docs.google.com/spreadsheets/d/1nmJ8uq-h4IkXPxD5svnT...
--------------------------------
Elements Collected: H, Li, C, N, O, Mg, Al, Si, P, S, Fe, Ni, Cu, Zn, Ag, I, Au, Pb, Bi, Am
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Mr. Rogers
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[*] posted on 8-5-2019 at 18:44


Quote: Originally posted by Abromination  
https://www.amazon.com/gp/aw/d/B07L5TWRVG/ref=sspa_mw_detail...


That may not spark but the body is all metal.
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Herr Haber
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[*] posted on 9-5-2019 at 02:53


Squirel cage blowers are NOISY !
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Abromination
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[*] posted on 10-5-2019 at 08:14


Quote: Originally posted by Mr. Rogers  
Quote: Originally posted by Abromination  
https://www.amazon.com/gp/aw/d/B07L5TWRVG/ref=sspa_mw_detail...


That may not spark but the body is all metal.

I'm noy to worried about corrosion of the fan body itself, mostly just the motor itself.
That can always be fixed with a bit of work.




List of materials made by ScienceMadness.org users:
https://docs.google.com/spreadsheets/d/1nmJ8uq-h4IkXPxD5svnT...
--------------------------------
Elements Collected: H, Li, C, N, O, Mg, Al, Si, P, S, Fe, Ni, Cu, Zn, Ag, I, Au, Pb, Bi, Am
Last Acquired: Bi
Next: B
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