The experimental results reveal that the critical conditions for ignition of fibreboard vary over wide ranges: mass flux between 4.9 to 7.4 g/m 2-s, surface temperature between 276 to 298☌, and heat flux between 29 to 40 kW/m 2. Experiments are conducted in a Fire Propagation Apparatus under parabolic heat flux pulses with peak irradiation ranging from 30 to 40 kW/m 2 and time-to-peak irradiation from 160 to 480 s. Here, we study the piloted ignition and burning of medium density fibreboard (MDF) under transient irradiation. However, accidental fires are better represented by transient heating. The state of the art of wood flammability is based mostly on studies at constant heating. Natural materials like wood are increasingly used in the construction industry, making the understanding of their ignition and burning behaviour in fires crucial.
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