Flexibly adjustable grate systems are major prerequisites for combustion systems that can be operated with different types and qualities of biomass fuels, and to ensure low emissions and high operational security regarding slag handling at the same time. The GrateAdvance project deals with the development of next generation small scale biomass burner and boiler systems. Scientific object is to improve the understanding and modelling of the solid fuel conversion inside fuel bed with focus on ash-related compounds to describe slagging mechanisms and the impact of operational parameters (temperature, residence time, stoichiometry) on particle and emission release.

Results will be implemented in the optimization and in the subsequent scale-up of the combustion system. Furthermore, a novel control concept that is capable of adapting to varying fuel properties will be developed, and a concept for the integration of an electrostatic precipitator (ESP) for larger capacities is elaborated.