ABSTRACT

The ignition of the wood stacks took about 2 minutes, but it was only after 34 minutes, when the lightdomes failed, that the fire fully developed (flames escaping through the roof) and the inside temperature reached the level of the ISO-curve. From that moment on, the fire rate was roughly controlled by closing and opening of the doors. It was found that despite the very high amount of fuel that was used and the ventilation of the building, the heating curve of the ISO standard 834 was followed during only 1 h 15 min. Reliable measurements were not available anymore at that moment, because thermocouples had fallen down in the layer of burning charcoal, while others were mechanically interrupted. The fire extinguished after 120 minutes by lack of fuel.