Determination of smoldering time and thermal characteristics of firebrands under laboratory conditions
Vladimir Fateev, Mikhail Agafontsev, Sergey Volkov, Alexander Filkov
FIRE SAFETY JOURNAL | ELSEVIER SCI LTD | Published : 2017
The laboratory experiment was conducted to simulate the transfer of smouldering particles produced in forest wildfires by a heated gas flow. The pine bark pieces with the linear dimensions L=(15; 20; 30) mm and a thickness of h=(4−5) mm were selected as model particles. The rate and temperature of the incident flow varied in the range of 1–3 m/s and 80–85 °C, respectively. The temperature of the samples was recorded using a thermal imager. To determine the minimum smouldering temperature of pine bark, the thermal analysis was conducted. The minimum smouldering temperature of pine bark was found to be 190 °C. This temperature will cause thermal decomposition of bark only at the first stage (o..View full abstract
Awarded by Russian Foundation for Basic Research
This work was supported by the Russian Foundation for Basic Research (project #15-31-20314) and the Tomsk State University Academic D.I. Mendeleev Fund Program and the Bushfire and Natural Hazard Cooperative Research Centre 'Determining threshold conditions for extreme fire behaviour' project.