CIBSE Guide E | Ch. 10 | Eq. 10.10

Limiting average air velocity for opposed air flow | Room of fire origin to large volume

Limiting average air velocity where opposed air flow is used to stop smoke spread from room of origin to a large volume

Reference

CIBSE (Chartered Institution of Building Services Engineers), 2019. CIBSE Guide E: Fire Safety Engineering. 4th edn. London: CIBSE.

Equations

v_e = 0.64 \space (g \space H \space \frac{T_f - T_0}{T_f}) ^ {0.5}