Home > Term: critical velocity
critical velocity
The minimum steady-state velocity of the ventilation airflow moving toward the fire within a tunnel or passageway that is required to prevent backlayering at the fire site.
- Del af tale: noun
- Branche/domæne: Fire safety
- Category: Prevention & protection
- Company: NFPA
0
Ophavsmand
- nomura
- 100% positive feedback