The fluid dynamics in the furnaces of large-scale circulating fluidized bed (CFB) boilers are surprisingly little known contrast to many laboratory studies made on conditions related chemical reactors. Two areas surveyed present work: bottom and upper dilute zone a furnace. is considered bubbling, but general opinion that either it does not exist, or turbulent. flow furnace phase transport, jud...

Nowadays, fluidized bed plays an important part in industry. The design of this kind of reactor requires knowing the interfacial area between two phases and this interfacial area leads to calculate the solid holdup in the bed. Consequently achieving interfacial area between gas and solid in the bed experimentally is so significant. On interfacial area measurement in fluidized bed with gas has b...

The new geometrical design of stand-pipe air distributor for the combustion of the municipal solid waste was presented. The new design of the air distributors enables penetration of incombustible and unburnt carbon through opening between the air distributors, thus providing easy maintenance work. The fluidized bed experimental rig was constructed using Perspex column in which air was supplied ...

A classification of heat exchangers with fluidization bulk material for use in enterprises the chemical, mining, construction, food, metallurgical and processing industries has been developed. critical review most characteristic designs a fluidized bed, proposed by scientists, designers inventors leading countries world, carried out. The are analyzed depending on method fluidization, role excha...

A hybrid carbon-dot (C-dot)–hydrogel matrix was constructed and employed for detection of bacteria. The transduction mechanism is novel, based upon cleavage of ester bonds within the hydrogel scaffold by bacterially-secreted esterases; the ensuing fluidization of the hydrogel resulted in aggregation of the embedded C-dots and consequent quenching of their fluorescence. We show that the C-dot–hy...