کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
270192 504736 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Piloted ignition of wildland fuels
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Piloted ignition of wildland fuels
چکیده انگلیسی

Piloted ignition of wildland fuel litters was experimentally studied using the FM Global Fire Propagation Apparatus (FPA) with an applied external radiant heat flux up to 30 kW/m2. Fuel types (i.e. Maritime Pine needles and Kermes Oak leaves) and loadings are representative of Mediterranean ecosystems. For the fuel beds considered the inverse of the ignition time was found to be linearly dependent on the imposed heat flux, as observed for thermally-thin solids. A systematic study was carried out to determine the critical (minimum) heat flux for piloted ignition. On the other hand, a dimensionless analysis of the energy equation for the homogeneous equivalent medium was carried out based on the assumptions that the solid and gas phases are in thermal equilibrium and that piloted ignition occurs when the average equivalent medium temperature over the radiation penetration depth reaches a critical value. Using experimental data, a correlation was found between dimensionless ignition time and imposed heat flux.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fire Safety Journal - Volume 46, Issues 1–2, January–February 2011, Pages 34–40
نویسندگان
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