Secure Buildings: Animation
Airflow and Polutant Transport Group
Lawrence Berkeley National Laboratory Logo Blue steps Blue steps Indoor Environment Department
Advice for Safeguarding Buildings
Against Chemical or Biological Attack
Home
Pre-Event Advice
Immediate
Long-Term
During Release
Indoor Release
Outdoor Release
Unknown Release
Vulnerability Assessment
Buildings
Airports
Training Aids
Animation
Information
Related Links
Contact Us
Webmaster
 
Printer Version
Acknowledgments
Privacy, Security and Disclaimer Notice
 
Last Updated
April 27, 2005

Animation

This animation shows how the HVAC system spreads contamination through part of a building. The animation runs at faster than real-time, and shows the spread of gas after a very rapid release of gas (not from a continuous source). The times shown are for the building that is being illustrated — the rate of spread and exhaust depend on the details of the building the ventilation system.

The exhaust damper and mixing box (air intake) at the top of the building are schematic; the actual devices may look different, and may be positioned elsewhere on a building.

Animation showing how the HVAC system spreads contamination through part of a 
		building.
Home : Printer Version : Contact Us : Webmaster
Airflow and Polutant Transport Group : Indoor Environment Department : Berkeley Lab