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Offlinejerrylove
little bit further then I was
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Flow hood boxes * 1
    #23395009 - 06/29/16 05:45 PM (7 years, 6 months ago)

I am looking at building a flow hood and getting started on some edible grows in hopes of supplying a couple of farm to fork places in town. Anyway the question is does the chamber behind the hepa filter have to have a specific volume or does it just need to be deep enough to accommodate the plenum of the blower motor?


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Invisibleweetsie
unlicensed tub surgeon
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Re: Flow hood boxes [Re: jerrylove]
    #23395064 - 06/29/16 06:08 PM (7 years, 6 months ago)

I think as long as your fan is producing enough pressure and your filter creates enough resistance you will get laminar flow and you're good to go. Plenty of hoods you see around here have a chamber behind the filter no larger than the exit of the fan.


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OfflineGr0wer
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Registered: 09/16/03
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Re: Flow hood boxes [Re: weetsie]
    #23396043 - 06/29/16 11:56 PM (7 years, 6 months ago)

yea mine is only like 6" deep. This is a 45" wide filter for scale.



Edited by Gr0wer (06/29/16 11:57 PM)


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Offlinejerrylove
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Re: Flow hood boxes [Re: Gr0wer]
    #23396254 - 06/30/16 03:17 AM (7 years, 6 months ago)

Thanks guys. I didn't think so but as I always say the dumbest question is the one that wasn't asked.


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:mushroom2:THOSE WHO KNOW DONT TALK!:mad:THOSE WHO DONT KNOW CANT TALK.:smile: (Timothy Leary):mushroom2:
"Funny thing about weekends when your unemployed they don't mean quit so much except you get hang out with your workin' friends" Les Claypool


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OfflineGr0wer
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Re: Flow hood boxes [Re: jerrylove]
    #23396620 - 06/30/16 07:18 AM (7 years, 6 months ago)

With a small plenum you will see slightly higher air speeds at the bottom vs the top, but it wont affect the concept too much, you will still have a nice pocket of sterile air.


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Offlinejerrylove
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Re: Flow hood boxes [Re: Gr0wer]
    #23396685 - 06/30/16 07:46 AM (7 years, 6 months ago)

So by that thought then is if the volume behind the filter is larger and the blower farther back you will get a more even flow?


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:mushroom2:THOSE WHO KNOW DONT TALK!:mad:THOSE WHO DONT KNOW CANT TALK.:smile: (Timothy Leary):mushroom2:
"Funny thing about weekends when your unemployed they don't mean quit so much except you get hang out with your workin' friends" Les Claypool


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OfflineGr0wer
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Re: Flow hood boxes [Re: jerrylove]
    #23396842 - 06/30/16 08:54 AM (7 years, 6 months ago)

Yes, baffles should help split the flow up too if you want to get anal but its not needed.


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Offlinejerrylove
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Re: Flow hood boxes [Re: Gr0wer]
    #23398510 - 06/30/16 06:29 PM (7 years, 6 months ago)

Thanks don't wanna get that crazy lol.


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:mushroom2:THOSE WHO KNOW DONT TALK!:mad:THOSE WHO DONT KNOW CANT TALK.:smile: (Timothy Leary):mushroom2:
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OfflineLobi
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Re: Flow hood boxes [Re: Gr0wer]
    #23405037 - 07/02/16 07:31 PM (7 years, 6 months ago)

Quote:

Gr0wer said:
yea mine is only like 6" deep. This is a 45" wide filter for scale.






What are you using in this picture to heat up your PC?


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:mushroom2:My High Quality Lo-Fi Beats  -:mushroom2:MushroomCultivation Compendium  -:mushroom2:- Doing Bulk w/ No PC -:mushroom2:

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OfflineGr0wer
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Re: Flow hood boxes [Re: Lobi]
    #23405775 - 07/03/16 12:08 AM (7 years, 6 months ago)

A rather highly modified 1500w cooktop

springs to replace base perches (AA941 sits on 2" copper tubes)
vent holes drilled top and bottom
thermostat and thermal protect bypassed


https://www.amazon.com/gp/product/B0140XX8E2/ref=oh_aui_search_detailpage?ie=UTF8&psc=1


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OfflineGiblets and Juice
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Registered: 04/09/16
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Re: Flow hood boxes *DELETED* [Re: Gr0wer]
    #23416448 - 07/06/16 10:09 AM (7 years, 6 months ago)

Post deleted by Giblets and Juice

Reason for deletion: ,



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OfflineGr0wer
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Registered: 09/16/03
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Loc: El Paso, TX Flag
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Re: Flow hood boxes [Re: Giblets and Juice]
    #23419406 - 07/07/16 07:27 AM (7 years, 6 months ago)

Pc is in the lab to keep eveything together. No transporting. My lab is far from optimal being in my garage but it works well.


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Offlineleschampignons
Biochemistry + Mycology
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Registered: 08/30/13
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Re: Flow hood boxes [Re: Gr0wer]
    #23435326 - 07/12/16 03:56 PM (7 years, 6 months ago)

Grower is the 1500W cooktop an induction cooktop? I have been looking into getting one of these, but they are not supposed to be used with aluminum I think. I was thinking of getting a cast iron pan and putting it between the cooktop and my PC.


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