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Topic ClosedAIR CONDITIONING DUCTS
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Marfi View Drop Down
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Joined: 08.Apr.2010
Location: Spain
Using: AutoCad, Inventor, SolidWorks, Sketchup
Status: Offline
Points: 5 		Direct Link To This Post Topic: AIR CONDITIONING DUCTS
    Posted: 14.Apr.2019 at 18:59
Hi!
Does anynone know how to draw air conditionins duts. I know there is a specific way with some geometrical features. Thanks!
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Robert_D View Drop Down
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Joined: 21.Oct.2013
Location: United States
Using: BricsCAD v21, AutoCAD2006
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Points: 207 		Direct Link To This Post Posted: 15.Apr.2019 at 23:22
Are you looking for 2D dwg.s?
If so, refer attached.uploads/413522/ductwork.dwg
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Marfi View Drop Down
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Joined: 08.Apr.2010
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Points: 5 		Direct Link To This Post Posted: 16.Apr.2019 at 12:23

Hi, 

thank you Robert, there is almost everything I was looking for. What I was specifically looking for is the bifurcation points. When one duct turns into two. I know there must be considered some geometrical features in terms of radius to keep the same flow.


Thanks a lot
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Robert_D View Drop Down
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Joined: 21.Oct.2013
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Using: BricsCAD v21, AutoCAD2006
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Points: 207 		Direct Link To This Post Posted: 16.Apr.2019 at 17:36
I have other HVAC dwg.s, but much too large to upload here.

With bifurcation points, consideration has to be given to equivalent volume / area (relative to the main trunk from whence they originate).

As you mentioned radii are important to ensure uniform airflow, reducing pressure drops. Also consider turning vanes to smoothly allow airflow thru radii (as well as reduce airflow noise)
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Marfi View Drop Down
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Joined: 08.Apr.2010
Location: Spain
Using: AutoCad, Inventor, SolidWorks, Sketchup
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Points: 5 		Direct Link To This Post Posted: 19.Apr.2019 at 21:22
Thank you Robert,

this is what I really want to know, how to draw bifurcation points. I can't find any document in which I can see how are roles to draw this part of ducts.

If you have any I Will be pleased. 
Thanks again.
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