- Author
-
Spearpoint, M. J.
|
Quintiere, J. G.
- Title
- Predicting the Burning of Wood Using an Integral Model.
- Coporate
- Maryland Univ., College Park
- Journal
-
Combustion and Flame,
Vol. 123,
No. 3,
308-325,
November 2000
- Sponsor
- National Institute of Standards and Technology, Gaithersburg, MD
- Keywords
-
wood
|
heat flux
|
mass loss
|
temperature
|
char
|
pyrolysis
|
charring
|
burning rate
|
surface temperature
|
penetration
|
ignition
|
experiments
|
equations
|
temperature profiles
|
material properties
|
oxidation
|
char depth
- Abstract
- This paper experimentally and theoretically examines the horizontal burning of four species of wood exposed to incident heat fluxes of 25-75 kW/m2 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.