[mattorrell]

Does anybody have experience making / installing a turning vane / scoop / wedge in ducting to improve air flow. I have attached a sketch to demonstrate what I am trying to accomplish.

The sketch is of the supply feeding the overhead duct. Any help/ideas are appreciated. I would also like to do something similar in the supply plenum.

Thanks.

 

[Poparoach]

hi turning vanes do work use them alot ,,,, in yur case move vane so edge catches the 9 inch round corner so it scoops air

 

[mattorrell]

Thanks. Any idea where to get these/ make my self / have made? I've been calling hvac shops in the Boston area and they think I'm crazy when I ask.

 

[Poparoach]

lol .. we use them all the time in canada ,, actually the eng, specify on some drawings .. i say make it up yurself out of some flat joist liner put a 90degree bend on the sides and notch if needede to get radius ,, screw into place from top n bottom if u can get access

 

[mattorrell]

Awesome, thanks! By joist liner I assume you mean sheet metal?

 

[Poparoach]

yes thats correct just flat sheet metal , let me know how ya make out or if u have any more questions

 

[mattorrell]

Thank you!

 

[quincy]

What is the main purpose of the turning vane? Air flow or noise?
Thanks

 

[mattorrell]

airflow

 

[beenthere]

What you drew is not a turning vane. A turning vane would not be the full length/height of the duct like you have it. What you have drawn will help though, but turning vanes would help more.

http://www.aero-dyne.net/