Air Ducts - Sizing
Air flow, air velocity and required air-duct area:
- 1 ft/min = 5.08×10-3 m/s
- 1 ft3/min = 1.7 m3/h = 0.47 l/s
- 1 ft2 = 0.0929 m2 = 144 in2
Related Mobile Apps from The Engineering ToolBox
- free apps for offline use on mobile devices
Insert ducts to your Sketchup model with the Engineering ToolBox Sketchup Extension
Related Topics
• HVAC Systems
Design and sizing of Heating, Ventilation and Air Conditioning systems.
• Ventilation Systems
Design of 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.