Operational results from the 16 MW FBB at the Chalmers University

Paper i proceeding, 1984

The 16 MW fluidised bed boiler was first started in 1982 and has since then run for 3325 hours. After only 1200 hours the material wastage on the in-bed heat transfer surfaces was so great that tubes had to be removed. Wear resistant coatings of various kinds have been tried but the result of their use is not quite clear. Measurements of elutriated solids and the corresponding combustion efficiency is discussed. Finally, in contrast to the problems of material wastage and low combustion efficiency, some positive operational characteristics such as start-up and load control are presented.