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A full‐scale experimental and modeling investigation of dust explosions in a roller mill

Combustion of biomass is becoming an increasingly important energy source. This is especially true for wood pellets, as several power companies have decided to use this fuel instead of coal. In this process, the wood pellets are ground in big mills and, from there, pneumatically transported to the burners in the boiler where they are consumed. The grinding of biomass and coal represents an explosion hazard, which can potentially result in considerable damage to the power plant upon propagation of the explosion from the mill into other parts of the installation.