CoCoEnergy - Mobilization of corn cobs as energy source and improvement of heat generators concerning environmental impacts
The project deals with the low-emission, efficient combustion of straw-like biomass (e.g. wheat and rice straw, maize straw/cobs) for heat supply in small and medium-sized plants in rural areas. Agricultural residues have different fuel properties compared to woody biomass and higher contents of ash, K, Si, S, and Cl, which are responsible for unfavourable ash melting behaviour, higher particulate matter emissions, and other ash-related problems during combustion. The reduction of emissions and the more complete combustion of the biomass can be achieved both by improving fuel properties through pelletizing, additives or fuel blending, and by modifying and adapting the combustion unit to the specific requirements of the fuel. Experimental investigations are conducted in the laboratory and pilot plant of the institute, after the theoretical basics have been covered, e.g. through modelling with the help of the thermodynamic software FactSage.