IMPROVEMENT OF HEAT TRANSFER IN CIRCULATING FLUIDIZED BEDS
The research concerns the study and improvement of heat transfers in circulating fluidized beds. The factors of complete heat transfer between fluidized beds, made up of particles of variable granulometry, and verticle tubes finned lengthwise were measured at temperatures corresponding to normal combustion temperatures. The concentration of particles and the speed of the fluidized bed were varied. The rectangular section, height, and thickness of the fins on the tubes are also variables; they are either two or twenty in number and in the latter case they may be perforated. The gain in heat transfer is considerable. It was established that the real transfer of heat decreases when the height of the fins increases or when their spacing is diminished, this being due to the braking of the movement of the particles. The collected data are directly exploitable for the dimensioning of industrial units.
Bibliographic Reference: EUR 9819 EN/FR (1985) MF, 70 P., BFR 150, BLOW-UP COPY BFR 350, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
Record Number: 1989125035100 / Last updated on: 1987-04-01
Available languages: en,fr