Combustion and Flame, Vol.123, No.3, 308-325, 2000
Predicting the burning of wood using an integral model
This paper experimentally and theoretically examines the horizontal burning of four species of wood exposed to incident heat fluxes of 25-75 kW/m(2) with their grain oriented either parallel or perpendicular to the incident heat flux. Mass loss, temperatures, and char fractions were measured. A one-dimensional integral model that describes the transient pyrolysis of a semi-infinite charring solid subject to a constant radiant heat flux was developed. The solutions to the integral model for the burning rate were compared with data using analytical short-time and long-time solutions. Reasonable comparative results are shown for mass loss rate, surface temperature, char depth, and effective thermal penetration.