Question

• Rectangular ducts are generally preferred over circular ducts in building as
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Answer 1

Answer:

• 1) Size: For a given pressure loss, the surface area of rectangular duct can be double the comparable round duct surface area. Round duct, therefore, requires less metal than rectangular equivalents. Rectangular duct work often requires heavier gauges, additional reinforcement, and heavier, shorter sections.

Answer 2

Answer:

Rectangular ducts are generally preferred over circular ducts because rectangular ducts are simple to construct on-site, take up little room, and allow for the maintenance of high ceilings.

Explanation:

• Rectangular ducts are often favoured in reality because they fit readily into building structure, taking up less room, and they are also simple to make, even though circular ducts require the least amount of material for a given flow rate and permitted pressure drop.
• When there is not enough room for round ducts to be installed because of a compact space, rectangular ducts must be used.
• These square or rectangular air ducts also address the problem of the unsightly connection between the main duct and the fan coil.

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