Fan Placement on 55gal - Page 4

MtuPup · #31 (**permalink**) 10-06-2009, 12:32 PM

it pays when you spend a lot of time in industrial air handlers (the giant air conditioners you'd find on a factory roof). Most operate under this principle of just recirculating and re-conditioning the air from the factory floor - some have the option to switch between outside air or return air or a mix of both dependant on weather conditions.

I'm hoping too with getting the fan out of the actual tank and with the hopes that the humid air will condensate inside the duct hose, the fan will face minimal water damage.

Epiphile · #32 (**permalink**) 10-06-2009, 01:08 PM

That's why I thought your idea was great- it may take a bit of experimentation, but the principle should work out for you. Let's have a photo when you're done- I may implement this myself some time.

Perhaps some kind of filter material might keep serious condensation out of the hose- something that'll allow the air (hopefully still humid) to pass freely, of course, but dense enough to keep anything really damaging out.

MtuPup · #33 (**permalink**) 10-06-2009, 01:17 PM

I'm going to put fiberglass screen over the inlet - have way more than enough laying around. I'll get pics up as soon as I get the time to implement this.

Epiphile · #34 (**permalink**) 10-06-2009, 01:21 PM

Looking forward to them.

froggsong · #35 (**permalink**) 10-06-2009, 10:39 PM

damn good idea. 5 starts for you! I may have to stick this thread.

EDIT: STARS even... sheesh

MtuPup · #36 (**permalink**) 10-07-2009, 12:13 PM

So first development - scrapped the 80mm fans for 40mm. After running the numbers, to get a decent CFM moving around, I'm doing a 4 fan system. 2 pulling air out 2 pushing it back in. Luckily I happen to have some old computer towers laying around so I have 2 fans to test this out. I need to find smaller duct now.

Epiphile · #37 (**permalink**) 10-07-2009, 12:24 PM

You may have to go with a wider-diameter vinyl tubing or something. What CFM are you shooting for? Jeez, it sounds like it'll be Dorothy's house halfway to Oz by the time you're through with it. Nothing wrong with that...

MtuPup · #38 (**permalink**) 10-07-2009, 12:56 PM

the fans I've got my eye on for the permanent install are rated at 4.93 CFM, and at full bore, I want to be able to come close to that - part of a two fan system is also fatique on one fan, ultimately causing the bearings to go faster (but than again for $3 a fan is pretty much a throwaway).

MtuPup · #39 (**permalink**) 10-26-2009, 12:22 PM

there it is, my modular solution to air movement.

Epiphile · #40 (**permalink**) 10-26-2009, 12:45 PM

That's a beauty- so is the system running 24/7 or are you controlling it somehow? And let's have a look at the front there while we've got the camera out.