ABSTRACT

Theoretical models for predicting the conditions which give rise to flashover are desirable in order to assist in assessing the likelihood of flashover in a given case. In principle, with a model, it should be possible to estimate the effect of making alterations to material or geometrical characteristics of a design for a new or existing building. For a domestic-sized room, of typical contents and ventilation opening, that would correspond to a post-flashover fire. If there is insufficient fuel present to allow ventilation control then a serious fire may still result, even if the regime is still fuel-controlled. In practical terms, in order to avoid flashover, it is desirable to ensure that the fire radius remains the critical value for the system. Two theoretical models for predicting flashover, using zonal formulations, have already been described by the authors. These models have applied the concepts of nonlinear dynamics to fire in a compartment.