IDENTIFICATION OF PARAMETRIC MODELS BASED ON RTD THEORY - APPLICATIONTO SAFETY STUDIES IN VENTILATED NUCLEAR ENCLOSURES

The general strategy adopted in the development of a computational too l performing the identification of parametric models based on the resi dence time distribution (RTD) theory is exposed Two main aspects of th e modelling procedure are presented : the structural discrimination of the various solution schemes, and the parameter estimation step. The master problem is solved by a stochastic procedure based on a Simulate d Annealing algorithm while the slave problem is solved by a nonlinear deterministic procedure. An industrial application is proposed for th e description and the quantification of the air now patterns and the a ssociated pollutant transfers observed in ventilated indoor spaces, an d particularly in nuclear enclosures. (C) 1998 Elsevier Science Ltd. A ll rights reserved.