Study of wood self-extinguishment with a double sliding cone calorimeter

The aim of the present work was to improve study wood self-extinguishment under cone calorimeter thanks a dedicated experimental setup. A modified into double sliding in vertical orientation for studying samples extinguishment. With this new setup, external heat flux can be quickly switched from high low value seeking leading sample Samples were first submitted different fluxes (60, 82.5 and 93.5 kW.m?2) auto-ignition. After exposure times (6, 9, 15 18 min), suddenly reduced lower (between 38.5 60 by one other one. All all, 206 tests performed varying time. This large number test made it possible carry out statistic deduce critical Mass Loss rate self-extinguishment. varied 44 51 kW.m?2 depending on that used ignite sample. These found weakly dependent time during which exposed flux. Time-to-extinguishment between 40 s 100 s. Rate Per Unit Area (MLRPUA) occur equal 3.95 g.m?2s?1 is almost independent experiment parameters (exposure flux).