TY  - JOUR
PY  - 2007//
TI  - The role of extinction on the re-ignition potential of wood-based embers in bushfires
JO  - International journal of wildland fire
A1  - Moghtaderi, Behdad
A1  - Poespowati, Tri
A1  - Kennedy, Eric M.
A1  - Dlugogorski, Bogdan Z.
SP  - 547
EP  - 555
VL  - 16
IS  - 5
N2  - The re-ignition potential of partially burnt wood-based embers was investigated theoretically by studying their extinction characteristics. An adaptation of Semenov’s thermal explosion theory was used in conjunction with a linear stability analysis to determine the critical particle size at which extinction occurs. Particles of various shapes were studied and the analysis was carried out for both thermally thin and thermally thick particles. The results of our analysis indicate that thermally thick embers are less susceptible to extinction than thermally thin ones and, as such, are more prone to re-ignition. The results also show that the extinction of wood embers is strongly affected by the particle temperature, particle shape, and reaction kinetics. The effects of ambient conditions were found to be less pronounced than particle properties.<p />
LA  - en
SN  - 1049-8001
UR  - http://dx.doi.org/10.1071/WF06029
ID  - ref1
ER  -