Fluidised Bed Combustion
Principle:
The fuel is maintained above the firing nozzle bed and fluidizes. The crushed fuel particles have a large surface, this provides a good burnout. The strong turbulent flow has a very good momentum and heat transfer result, a uniform temperature prevails in the fluidized bed. The combustion temperature is determined by the introduced fuel mass. The temperature is adjusted so that the formation of harmful gases (CO, NOx) is minimized. In the fluidized bed very low nitrogen oxide emissions can be met, since a relatively low combustion temperature can be driven without temperature peaks. Low temperatures have the advantage that the relatively high bound nitrogen molecule not dissociates.