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OfflineMyco_Mage
Stranger
Registered: 01/25/20
Posts: 2
Last seen: 2 years, 3 months
Did I mess up my laminar flow hood design?
    #26678765 - 05/18/20 11:07 AM (3 years, 8 months ago)

Hello fellow shroomers. I'm working on building a laminar flow hood with my stimulus check. I'm not sure if what I got will work, or if I should just get the safe thing a regular aluminum fin HEPA instead of the ULPA I got. Here's the link  to the ULPA and blower I got. Basically when I need to know is if the filter I selected is deep enough for laminar flow. I also haven't been able to find any salad info on how large the plenum needs to be (void space behind the filter)
      https://www.grainger.com/mobile/product/AIR-HANDLER-ULPA-Air-Filter-2EJY4 (ULPA filter 24" x 48" x3")



Thanks I appreciate you guys ❤️ mush love - M.M


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InvisibleGordoTEK
Underground Researcher

Registered: 01/26/19
Posts: 82
Re: Did I mess up my laminar flow hood design? [Re: Myco_Mage] * 1
    #26678849 - 05/18/20 12:02 PM (3 years, 8 months ago)

The filter looks nice although quite expensive but HEPA filters allow for better airflow (as well as better longevity).  Not sure I would have gone with ULPA but it may work fine.


--------------------
GordoTEK


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OfflineMyco_Mage
Stranger
Registered: 01/25/20
Posts: 2
Last seen: 2 years, 3 months
Re: Did I mess up my laminar flow hood design? [Re: GordoTEK]
    #26678873 - 05/18/20 12:10 PM (3 years, 8 months ago)



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InvisibleGordoTEK
Underground Researcher

Registered: 01/26/19
Posts: 82
Re: Did I mess up my laminar flow hood design? [Re: Myco_Mage]
    #26716086 - 06/03/20 08:15 AM (3 years, 7 months ago)



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OfflinePinkStormtrooper
Jet-Puffed


Registered: 04/11/20
Posts: 218
Loc: 10001110101 Flag
Last seen: 3 years, 3 months
Re: Did I mess up my laminar flow hood design? [Re: GordoTEK]
    #26716212 - 06/03/20 09:12 AM (3 years, 7 months ago)

as someone who is doing same, the idea of a X-thickness filter to achieve laminar flow is to me, misleading.

laminar flow means all the fluid, in this case air, is going at the same speed/pressure. look at the laminar flow water jet it only uses 1 3/4 straws for example. not 8" straws.

I postulate that you can use a 1" filter, and the laminar flow can be achieved with baffles, chambers, and flow control inside the container vessel.

my current science project is moving the input air from top/back/side of container vessel and moving/changing baffles within the container to find the best flows. 20"x25"x12" box.

45* angled baffles in the corners do things.


--------------------
"say, you got a little astroglide on your moustache"


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OfflineSockadin
Male User Gallery


Registered: 01/03/10
Posts: 7,244
Last seen: 2 months, 20 days
Trusted Cultivator
Re: Did I mess up my laminar flow hood design? [Re: PinkStormtrooper]
    #26716274 - 06/03/20 09:34 AM (3 years, 7 months ago)

Yeah the problem is gonna be getting a blower that has a low enough cfm to not blow out the laminar flow of the 3inch deep filter.

24*24*11 is what I use.


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