Автор |
Eccles, Errol R. A. |
Автор |
Mujumdar, Arun S. |
Дата выпуска |
1992 |
dc.description |
ABSTRACTBeds of alumina particles (d<sub>p</sub>= 27 μm and 100 μm) were vibrated in the vertical direction at frequencies frdm 0–25 Hz and half-amplitudes from 0–4 mm. Air flow rate through a single-hole or multiple-holes bottom plate varied from 0 to 2 times the minimum fluidizing velocity. The contact heat transfer coefficients at resonance are much higher than those in packed beds and in vibrated fluidized beds (up to 1.2 times). The high heat transfer rates are due to enhanced particle mobility which reaches a maximum at the resonant point. A simple semi-empirical correlation is developed for contact heat transfer which is based on particle mobility. Heat transfer coefficients are correlated with frequency using amplitude, bed height and particle size as adjustable parameters. The correlation is found explain the observed trends in the data reasonably well over the range of parameters studied. |
Формат |
application.pdf |
Издатель |
Taylor & Francis Group |
Копирайт |
Copyright Taylor and Francis Group, LLC |
Тема |
fluidization |
Тема |
resonance |
Тема |
particle circulation |
Тема |
small particles |
Тема |
vibration |
Название |
A CORRELLATION FOR CYLINDER-TO-BED HEAT TRANSFER IN AERATED VIBRATED BEDS OF SMALL PARTICLES |
Тип |
research-article |
DOI |
10.1080/07373939208916419 |
Electronic ISSN |
1532-2300 |
Print ISSN |
0737-3937 |
Журнал |
Drying Technology |
Том |
10 |
Первая страница |
165 |
Последняя страница |
187 |
Аффилиация |
Eccles, Errol R. A.; Union Carbide Chemicals and Plastics Co. Inc. |
Аффилиация |
Mujumdar, Arun S.; Department of Chemical Engineering McGill University |
Выпуск |
1 |