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Air Ducts - Sizing

Required duct area vs. air flow.

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Air flow, air velocity and required air-duct area:

Air Ducts Sizing - pdf-format

1 ft/min = 5.08x10^-3 m/s
1 ft³/min = 1.7 m³/h = 0.47 l/s
1 ft² = 0.0929 m² = 144 in²

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Related Topics

HVAC Systems - Heating, ventilation and air conditioning systems - design and dimensions.
Ventilation - Systems for ventilation and air handling - air change rates, ducts and pressure drops, charts and diagrams and more.

Related Documents

Air Duct Components - Minor Dynamic Loss Coefficients - Minor loss (pressure or head loss) coefficients for air duct components.
Air Duct Velocities - Typical air duct velocities in applications like ventilation systems or compressed air systems.
Air Ducts - Friction Loss Diagram - A major friction loss diagram for air ducts - SI units.
Air Ducts - Friction Loss Diagram - A major friction loss diagram for air ducts - Imperial units ranging 10 - 100 000 cfm.
Air Ducts - Velocity Diagram - Air flow volume, duct size, velocity and dynamic pressure.
Circular Ducts - Dimensions - Standard size of circular ventilation air ducts.
Duct Velocity - Calculate velocities in circular and rectangular ducts - imperial and SI-units - online calculator.
Ducts or Pipes through Steel Joists - Maximum Sizes - Maximum sizes of ducts or pipes through K series joists.
Ducts Sizing - the Velocity Reduction Method - The velocity reduction method can be used when sizing air ducts.

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