Right. The whole system is designed to be rather low velocity air flow: that's the key to good HVAC for studios: high volume, low velocity. Internally, inside the silencers, it's only around 150 to 250 fpm., and around 200 - 250 at the registers. Higher in the round duct sections, of course (600 to 800, with the AHU going full blast), but those aren't lined with this liner! In any case, the liner is rated for flow velocities up to 6,000 fpm, so I think we should be good with 200 fpm... Those fasteners inside the silencer boxes should be fine: maybe very slight turbulence, but nothing to be worried about.Purelythemusic wrote:Source of the post ... at the air speed I think we’ll have they would be fine.
However, I would not use them inside the sleeves: Those do need to have smooth sides. The good thing about the sleeves is that they are accessible from inside the room, so if the liner does come loose, you would be able to replace it without too much hassle.
There should be no dust build up on those fasteners, since you'll be using really good filters in the system... There should be no dust at all. But do close off the sleeve holes while you are installing the boxes, and until you are ready to install the sleeves, to keep dust and debris out. Tape heavy plastic across the holes, for that, on the inner-layer of wood.
Looking good, Tom! It's really nice to see how the place looks with lights in it! It's beginning to look like it might be a studio one day....
- Stuart -
(PS. Check your e-mail in a few minutes: I'll be sending you an updated video, with the new AHU layout you wanted to try...)