- Author
-
Kerber, S. I.
- Title
- Evaluation of the Ability of Fire Dynamic Simulator to Simulate Positive Pressure Ventilation in the Laboratory and Practical Scenarios.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
- Sponsor
- Department of Homeland Security, Washington, DC
- Report
-
NISTIR 7315
April 2006
149 p.
- Keywords
-
ventilation
|
scenarios
|
evaluation
|
simulations
|
mapping
|
experiments
|
uncertainty
|
flow visualization
|
geometry
|
vents
|
room fires
|
fuel load
|
heat release rate
|
gas temperature
|
differential pressure
|
gas velocity
|
ignition source
|
fire growth
|
smoke spread
|
oxygen
|
velocity
- Identifiers
- Positive Pressure Ventilation (PVV); Fire Dynamics Simulator (FDS); mapping the PPV velocity flow field; simple room experiment; room fire experiments; colonial house practical scenario; Smokeview
- Abstract
- Positive Pressure Ventilation (PPV) is a tactic that is used on fire grounds worldwide everyday, both to improve tenability after the extinguishment of a fire and/or to improve firefighting conditions during fire attack. PPV has proven that it can be a useful tool on the fire ground, but if used improperly it can also kill or injure fire fighters and civilians. Data from three full-scale experiments are compared with simulations completed with the computational fluid dynamic model Fire dynamics simulator (FDS). The full-scale experiments characterize a PPV fan in an open atmosphere, in a simple room geometry and in a room fire. All experiments qualify and quantify the comparison of the experimental results with the FDS results. A concluding scenario is modeled utilizing the calibration of the full-scale experiments to examine the effects of PPV on a fire in a two-story, colonial style house.