Air Ducts  Velocity Diagram
Air flow volume, duct size, velocity and dynamic pressure.
Velocity and dynamic pressure in air ducts:
Example  Air Flow and Velocity
The velocity in a 1000 mm duct with airflow 3000 m^{3}/h is approximately 1.1 m/s according the diagram above.
Related Topics

Ventilation
Systems for ventilation and air handling  air change rates, ducts and pressure drops, charts and diagrams and more.
Related Documents

Air Duct Calculator
Online calculator to compute friction loss in air ducts. 
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  Major Friction Head Loss, Online Calculator
Head loss or major loss in air ducts  equations and online calculator for rectangular and circular ducts  Imperial and SI units. 
Air Ducts  Sizing
Required duct area vs. air flow. 
Circular Ducts  Dimensions
Standard size of circular ventilation air ducts. 
Duct Velocity
Calculate velocities in circular and rectangular ducts  imperial and SIunits  online calculator. 
Ducts Sizing  the Velocity Reduction Method
The velocity reduction method can be used when sizing air ducts. 
HVAC Ducts  Air Velocities
Recommended air velocities in HVAC ducts. 
Rectangular Air Ducts  Velocity Diagram
Velocity diagram for rectangular air ducts  metric units.