four à lit fluidisé à bulles

OBS: Voir ""lit fluidisé à bulles"" dans la Revue de l'Énergie, no 34, janvier-février 1982, p. 181.

CONT: In recent years, fluidized bed combustion of biomass has become commercial practice. Two types of combustors have been developed: (1) the conventional dense-phase or bubbling bed combustor, and (2) the circulating fluidized bed combustor. Fluidized bed combustors offer several advantages. There is a high mass of inert material in the combustor, capable of absorbing energy from fuels that combust in a highly volatile fashion. The bed media contain sufficient energy that very wet fuels (e.g., 65% MCg) can be burned successfully .... Conventional dense-phase fluidized bed systems have grate release levels in the vicinity of 5.6 GJ/m2 grate equivalent and 470 MJ/m3 of volume (Envirosphere, 1980). Rates of heat release for circulating fluidized beds are somewhat higher.