Zone Fire Modeling With Natural Building Flows and a Zero Order Shaft Model.
Zone Fire Modeling With Natural Building Flows and a
Zero Order Shaft Model.
Klote, J. H.; Forney, G. P.
NISTIR 5251; 42 p. September 1993.
Available from: National Technical Information Service
Order number: PB94-112166
zone models; air movement; fire models; smoke movement;
This paper addresses applications of zone fire models to
simulate smoke flow in multistory buildings. Natural
flows in buildings are discussed. A zero order model
for shaft smoke flow was developed which treated the
shaft as one perfectly mixed zone. A two zone fire
model was modified to simulate natural flows and the
zero order shaft smoke flow. The extent to which the
one zone model and the two zone model are appropriate to
simulate smoke flow in shafts is disucssed. The
modifications for the natural building flow included
development of new initial conditions and of the
capability to simulate the gross effects of a heating
and air conditioning system. Eighteen example zone
model simulations were made to develop insight into the