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What is aspect ratio for duct?

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Question added by ahmed ramzy , site engineer , al watnia
Date Posted: 2015/06/22
magdy abd al nour
by magdy abd al nour , HVAC Site manger , First United Co.

the (width to the depth) is4:1

Muhammad Arsalan Siddiqui
by Muhammad Arsalan Siddiqui , Associate Director (MEP) , JLL

Width to depth is the aspect ration. Try to keep it as low as possible otherwise the friction and noise will be more.

Narendar Singh Verma
by Narendar Singh Verma , Divisional Manager , Q Tec Engg and Supplies

Height to Width ratio of the Duct is known as the aspect ratio of the duct

Hasan Riaz
by Hasan Riaz , Mechanical Engineer , Saudi Bin Ladin Group (Hamad International Airport)

Aspect Ratio is the ratio of the dimensions of the two adjacent sides of a rectangular duct.  High aspect ratios mean high friction, excess energy consumption, more sheet metal and expensive system. Generally aspect ratio used is4:1.

chetan sharma
by chetan sharma , Senior project engineer , trinity engineering services

aspect ratio for duct is in ratio1:4

mohamedi kassim hassan kaila
by mohamedi kassim hassan kaila , Mechanical Engineer -Plumbing and Hvac designer , Mes Engineering Consultancy Ltd

The Ratio of Duct used 

L/D where by L is a length of duct

                        D is the depth of duct

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