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OfflinekingsiZemidget
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Registered: 06/04/20
Posts: 16
Last seen: 1 year, 4 days
Can laminar flow be too fast?
    #26822129 - 07/13/20 11:21 PM (3 years, 6 months ago)

So I built a flow hood. Turned out great, but I'm pretty sure the air speed is above the recommended 100 ft per sec.  This is based on the "lighter test".  I've ordered an anemometer and it should be here in a couple of days so I can get an exact reading.  I'm just wandering if I need to choke the blower back to 100 ft/sec or if a little more velocity would be ok...or even better?  I looked around through all the flow hood teks and searched the forums but didn't find the answer I was looking for.  Thanks for any input, folks.  I appreciate ya.

Oh...in case you are wondering,  it's a 24"x24"x6" filter.  12" plenum.  Dayton 1TDU2 blower with a pre-filter.

Thanks again.  You folks have greatly improved my existence.  Cheers to all of you.



Edited by kingsiZemidget (07/13/20 11:58 PM)


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OfflineSpirit-Crusher
DOOM HIPPIE


Registered: 04/24/19
Posts: 358
Loc: PNW
Last seen: 15 days, 13 hours
Re: Can laminar flow be too fast? [Re: kingsiZemidget]
    #26822137 - 07/13/20 11:26 PM (3 years, 6 months ago)

I've read that laminar flow becomes turbulent past 250fpm.


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InvisibleBsdgaou

Registered: 02/20/19
Posts: 340
Re: Can laminar flow be too fast? [Re: Spirit-Crusher]
    #26822143 - 07/13/20 11:35 PM (3 years, 6 months ago)

You want to be in 100-150 range.


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OfflinekingsiZemidget
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Registered: 06/04/20
Posts: 16
Last seen: 1 year, 4 days
Re: Can laminar flow be too fast? [Re: Bsdgaou]
    #26822150 - 07/13/20 11:40 PM (3 years, 6 months ago)

Awesome.  Thanks. Just wanted to know how much wiggle room I had. Just the info I was looking for.


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OfflinekingsiZemidget
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Registered: 06/04/20
Posts: 16
Last seen: 1 year, 4 days
Re: Can laminar flow be too fast? [Re: Spirit-Crusher]
    #26822175 - 07/13/20 11:51 PM (3 years, 6 months ago)

Quote:

Spirit-Crusher said:
I've read that laminar flow becomes turbulent past 250fpm.





Thanks


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OfflinekingsiZemidget
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Registered: 06/04/20
Posts: 16
Last seen: 1 year, 4 days
Re: Can laminar flow be too fast? [Re: Bsdgaou]
    #26822180 - 07/13/20 11:53 PM (3 years, 6 months ago)

Quote:

Bsdgaou said:
You want to be in 100-150 range.




Thanks a bunch.


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