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# AIR CONDITIONING DUCTS

 Author Topic Search   Topic Options Marfi Newbie Joined: 08.Apr.2010 Location: Spain Using: AutoCad, Inventor, SolidWorks, Sketchup Status: Offline Points: 5 Post Options    Thanks(0)    Quote  Reply Topic: AIR CONDITIONING DUCTS    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. Robert_D Senior Member Joined: 21.Oct.2013 Location: United States Using: BricsCAD v18, AutoCAD2006 Status: Offline Points: 206 Post Options    Thanks(0)    Quote  Reply 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) Marfi Newbie Joined: 08.Apr.2010 Location: Spain Using: AutoCad, Inventor, SolidWorks, Sketchup Status: Offline Points: 5 Post Options    Thanks(0)    Quote  Reply 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 Robert_D Senior Member Joined: 21.Oct.2013 Location: United States Using: BricsCAD v18, AutoCAD2006 Status: Offline Points: 206 Post Options    Thanks(0)    Quote  Reply Posted: 15.Apr.2019 at 23:22 Are you looking for 2D dwg.s?If so, refer attached.uploads/413522/ductwork.dwg Marfi Newbie Joined: 08.Apr.2010 Location: Spain Using: AutoCad, Inventor, SolidWorks, Sketchup Status: Offline Points: 5 Post Options    Thanks(0)    Quote  Reply 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!