Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Air Intakes and Outlets

Ventilation systems - air intakes and outlets - rules of thumbs.

ventilation intake outlet

Intakes

  • Intakes should be at least 0.15 m (0.5 ft) above the terrain. In areas with traffic the intake should be at least 5 m (16 ft) above the terrain
  • The distance between intake, firewalls and surrounding buildings must be according the rules of the local authorities
  • Short cutting intake air with used outlet air must be avoided
  • An air intake should be located in a position where the wind influence on the pressure conditions within the system is limited
  • Air velocities in the intake openings should not exceed 2.5 m/s (~ 500 ft/min)

Outlets

  • Outlets should go direct out in unrestricted area
  • Short cuts with intake air, window openings and residence areas must be avoided
  • The distance between outlet, firewalls and surrounding buildings must be according the rules of the local authorities
  • An air outlet should be located in a position where the wind influence on the pressure conditions within the system is limited
  • The air velocity through the outlet should not exceed 3 - 15 m/s (~ 500 - 3000 ft/min)

Related Topics

  • Ventilation Systems

    Design of systems for ventilation and air handling - air change rates, ducts and pressure drops, charts and diagrams and more.

Related Documents

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

Citation

This page can be cited as

  • The Engineering ToolBox (2003). Air Intakes and Outlets. [online] Available at: https://www.engineeringtoolbox.com/air-intake-outlet-d_137.html [Accessed Day Month Year].

Modify the access date according your visit.

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter

















































7.8.15

.