
Michele Fry
Wood fibre manufacturing dedicated to biomass fuel production uses industrial waste products such as hog fuel or wood chips. …Traditionally, these waste products are stored in large fibre piles at manufacturing work sites. If not managed correctly, the accumulation of wood fibre in piles can pose a significant fire risk. …The range of moisture content combined with various particle sizes and densities within the material leads to microbial growth and biological activity. The combination of these factors can cause the fibre piles to self-heat over time due to the microbial decay of the wood fibre, triggering combustion within the pile(s). …The hazardous result of this biological, physical and chemical reaction generates smouldering pockets that can endure continuously for months, creating gaps and fire pockets that can collapse under any weight. …The risk of spontaneous ignition increases if the raw material or solid biofuel is initially moist, the stored volume is large and the ambient temperature is high.