MEASUREMENT OF JET ANGLES IN FLUIDIZED-BEDS / CLEAVER JAS,GHADIRI M,TUPONOGOV VG,YATES JG,CHEESMAN DJ // POWDER TECHNOLOGY. - 1995. - V. 85, l. 3. - P. 221-226.

ISSN/EISSN:

0032-5910 / нет данных

Type:

Article

Abstract:

Modelling of transport phenomena in the jetting region of fluidized beds requires the specification of several hydrodynamic parameters, one of which is the divergent angle of the jets. A series of experiments was conducted to measure this angle for a vertical jet of gas as it enters a fluidized bed, by the use of X-ray imaging techniques. In all the tests the material surrounding the jet was maintained in a fluidized state by a separate gas flow. Results were obtained for a number of different particulate materials fluidized at ambient conditions, and at high temperature and high pressure. Variations were also made to the orifice gas velocity and the orifice size. Generally the jet angle is shown to decrease with increasing operating pressure, to increase with increasing bed temperature, and to decrease with increasing orifice gas velocity. The dependence of orifice size on the jet angle was somewhat ambiguous, although larger orifice sizes resulted in significantly larger jet angles in some cases.

Author keywords:

JETS; FLUIDIZED BEDS; HYDRODYNAMICS; TOMOGRAPHY

DOI:

10.1016/0032-5910(95)03027-0

Web of Science ID:

ISI:A1995TK09200004

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	DEC
Publisher	ELSEVIER SCIENCE SA LAUSANNE
Address	PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND
Language	English
Research-Areas	Engineering
Web-of-Science-Categories	Engineering, Chemical
Number-of-Cited-References	13
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	12
Journal-ISO	Powder Technol.
Doc-Delivery-Number	TK092