WIT Press


Smolder Spread Through Thin Horizontal Fuel Layers

Price

Free (open access)

Paper DOI

10.2495/HT940391

Volume

5

Pages

8

Published

1994

Size

783 kb

Author(s)

C. Di Blasi

Abstract

Smolder spread through thin horizontal fuel layers C. Di Blasi Dipartimento di Ingegneria Chimica, Universitd degli Studi di Napoli Federico II, PmzWe 7. Tecc/wo, (90^^5 Mzpo/z, 7(a/?/ ABSTRACT Two-dimensional smoldering combustion of a thin layer of cellulosic par- ticles, in quiescent air, is numerically simulated. The mathematical model describes pressure and velocity variations through the Darcy law. Mass and energy balance equations are used to describe convective and diffusive trans- port of chemical species and convective, radiative and conductive heat trans- fer. In conjuction with transport phenomena, chemical processes are also taken into account to describe endothermic pyrolytic and exothermic oxida- tive degradation of the solid to volatiles and char and further exothermic oxidation of char. The solution is computed numerically through a finite dif- ference formulation of the model equations, based on the hybrid scheme. The splitting of the operators

Keywords