Role of accumulation for ignition of fuel beds by firebrands

Role of accumulation for ignition of fuel beds by firebrands

Blog Article

Large outdoor fires are one of the prominent fire problems in the world.Spot fires, caused by firebrands, are known as a key mechanism of rapid fire spread.Firebrands ignite unburned fuels far 716 ahead of the fire front.

In large outdoor fires, firebrands are thought to accumulate and ignite unburned fuel which cannot be ignited by a single firebrand.Experiments are performed Filter Power Wire to investigate the ignition behavior of fuel beds with changing fuel moisture content (FMC) and wind speed.It was found that accumulated firebrands could cause ignitions on fuel beds with high FMC and the upper limit of FMC for ignition increased from 6 m/s to 8 m/s.