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OfflineHma
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Registered: 01/04/21
Posts: 3
Last seen: 3 years, 23 days
Asking help to my 24*24*12 laminar flow hood calculation
    #27125897 - 01/04/21 11:17 AM (3 years, 24 days ago)

Hello out there and thank you for taking the time to read this...

I'm building a laminar flow hood and I would like confirmation or advice to my calculation

2ft x 2ft = 4 ft2
2. Multiply the required air speed(the one Stamets specifies, 100 ft/min) with the area of your filter

100 ft/min x 4 ft2 = 400 ft3/min
So 400 ft3/min(= cfm = "cubic feet per minute") is the amount of air your blower must deliver at the sum of the STATIC PRESSURE of the HEPA filter + prefilter.

NOTE: 1 cfm= 1.7m3/h (I'm european)

Now I got the data sheet from where my filter is from I'm concerned that my prefilter will make to much resistance...

I hope there is a kind soul that can cast some light on how much power my blower needs. I'm thinking around 450cfm /764m3/h

I will attach my filter data

Namaste




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Offlinecutie
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Registered: 12/27/20
Posts: 52
Last seen: 11 months, 1 day
Re: Asking help to my 24*24*12 laminar flow hood calculation [Re: Hma]
    #27125911 - 01/04/21 11:21 AM (3 years, 24 days ago)

The blower Fungi perfecti sells to match their 24 x 24 x 5.8” filter puts out 1040 CFM.

It seems like far too much but from the research I’ve done you’re better off buying a blower with a higher CFM than you think, you can just add prefilters and add a speed controller. Either that or Stamets is just trying to run people for their money, maybe both.


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OfflineHma
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Registered: 01/04/21
Posts: 3
Last seen: 3 years, 23 days
Re: Asking help to my 24*24*12 laminar flow hood calculation [Re: cutie]
    #27126056 - 01/04/21 12:18 PM (3 years, 24 days ago)

Jesus that's a monster of a blower it seems like twice the amout you would need? :confused:


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OfflineHma
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Registered: 01/04/21
Posts: 3
Last seen: 3 years, 23 days
Re: Asking help to my 24*24*12 laminar flow hood calculation [Re: cutie]
    #27127676 - 01/05/21 07:45 AM (3 years, 23 days ago)

Well thank you for the reply im gonna just get a big monster and and a controller to it,but still probably in the range you are mentioning,a little bit above since my prefilter et pretty heavy-duty

Thank you sir


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