Temperature Profiles In Forced-Ventilation Enclosure Fires

Abstract

We investigated the effect of ventilation rate, ventilation configuration, fire elevation, and the presence of a plenum (suspended ceiling) on the fire compartment temperatures during forced ventilated methane gas fires (100-400 kW). We found that with low air-inlet positions, fires with ventilation rates greater than 2 -3 times the stoichiometrically required air (referred to here as well-ventilated fires) produce twolayer temperature profiles; fires with a lower ventilation rate (underventilated fires) produce single-layer profiles with a temperature gradient.