Fundamentals of Enclosure Fire "Zone" Models:

The conservation laws are presented in control volume form and applied to the behavior of fire in enclosures. The behavior of enclosure fires is discussed and the assumptions for justifying the use of the control volume of "zone" modeling approach are presented. The governing equations are derived and special solutions are given. Flow through wall vents, room filling, and growing fires are analyzed. This paper is not a review of the litera ture. It is a theoretical presentation of compartment fire zone modeling, much of which has not been explicitly presented before or integrated into one presentation. The analysis for species in terms of mixture fraction is a distinct new contribution to zone modeling.