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Gloogloos
Stranger

Registered: 01/28/12
Posts: 63
Last seen: 7 years, 2 months
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Working in laminar flow question
#20258709 - 07/11/14 04:46 PM (10 years, 6 months ago) |
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Basically i just want to know how far to be from the filter, im building a flow hood with a 24x24x6 inch filter and i don't know how large to make the workspace.
If the flowhood were to output 100cfm what distance would you guys work in, or is it as far as it can bend a lighter 60-90 degrees?
I've been searching but I have seen answers ranging from 1/2 inch to 7 inches and even more, so lets see what you guys say.
Thanks!
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grainbrain
Tribalistic

Registered: 05/11/11
Posts: 2,626
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Re: Working in laminar flow question [Re: Gloogloos]
#20258981 - 07/11/14 06:00 PM (10 years, 6 months ago) |
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I try to do everything as close as possible, definitely within 6 inches.
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Gloogloos
Stranger

Registered: 01/28/12
Posts: 63
Last seen: 7 years, 2 months
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Re: Working in laminar flow question [Re: grainbrain]
#20259056 - 07/11/14 06:19 PM (10 years, 6 months ago) |
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Cool, how big would you say your workspace is, like a foot and a half or so?
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36fuckin5
Alchemycologist


Registered: 08/11/03
Posts: 12,097
Loc: Diving into Mystical Territori...
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Re: Working in laminar flow question [Re: Gloogloos]
#20259080 - 07/11/14 06:25 PM (10 years, 6 months ago) |
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All sterile work gets done as close to the filter as you can manage.
-------------------- Pat The Bunny said:
A punk rock song won't ever change the world, but I can tell you about a couple that changed me.
bodhisatta said:
i recommend common sense and figuring it out.
These are the TEKs I use. They're all as cheap and easy as possible, just like your mom.
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Ghatti
Totally not a Federal Agent

Registered: 06/23/14
Posts: 1,733
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Re: Working in laminar flow question [Re: 36fuckin5]
#20259213 - 07/11/14 06:52 PM (10 years, 6 months ago) |
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I think what he's hinting around at is "how far away from the filter is laminar flow still achieved with 100cfm?"
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36fuckin5
Alchemycologist


Registered: 08/11/03
Posts: 12,097
Loc: Diving into Mystical Territori...
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Re: Working in laminar flow question [Re: Ghatti]
#20259221 - 07/11/14 06:53 PM (10 years, 6 months ago) |
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Yeah, but it doesn't matter since all work should be done as close to the filter as possible.
-------------------- Pat The Bunny said:
A punk rock song won't ever change the world, but I can tell you about a couple that changed me.
bodhisatta said:
i recommend common sense and figuring it out.
These are the TEKs I use. They're all as cheap and easy as possible, just like your mom.
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Gloogloos
Stranger

Registered: 01/28/12
Posts: 63
Last seen: 7 years, 2 months
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Re: Working in laminar flow question [Re: 36fuckin5]
#20259326 - 07/11/14 07:20 PM (10 years, 6 months ago) |
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Quote:
I think what he's hinting around at is "how far away from the filter is laminar flow still achieved with 100cfm?"
That's exactly what I am asking, I'm just wondering how much space there is that you can reliably work in. I understand that closer is better but it would be good to know how much space is workable.
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36fuckin5
Alchemycologist


Registered: 08/11/03
Posts: 12,097
Loc: Diving into Mystical Territori...
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Re: Working in laminar flow question [Re: Gloogloos]
#20259688 - 07/11/14 08:12 PM (10 years, 6 months ago) |
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Quote:
Gloogloos said:
Quote:
I think what he's hinting around at is "how far away from the filter is laminar flow still achieved with 100cfm?"
That's exactly what I am asking, I'm just wondering how much space there is that you can reliably work in. I understand that closer is better but it would be good to know how much space is workable.
It doesn't matter. All your work should be done no more than a few inches from the filter.
If you really have to know, take some petris and open them for a given amount of time at different intervals of distance from the filter. But that's honestly gonna be a waste of a few petris.
-------------------- Pat The Bunny said:
A punk rock song won't ever change the world, but I can tell you about a couple that changed me.
bodhisatta said:
i recommend common sense and figuring it out.
These are the TEKs I use. They're all as cheap and easy as possible, just like your mom.
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