The Measurement of Voidage of Nonuniformly Fluidized Bed by Means of the Wall Pressure Signal

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Title:The Measurement of Voidage of Nonuniformly Fluidized Bed by Means of the Wall Pressure Signal
Creators:
Beňa, Ján
Havalda, Ivan
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 58, 5, pp. 1055-1068

Abstract

By the wall pressure signal, ∆<i>p</i><sub>x</sub>, from a nonuniformly fluidized bed is here termed the excess pressure at a wall of open column over the atmospheric pressure measured at a distance <i>x</i> from distributor. The relation was investigated between the wall pressure signal, ∆p<sub>x</sub>, and some specifically defined voidages of a so-called standard bubbling bed characterized by the fact that the ratio of the experimentally determined pressure drop for minimum fluidization, ∆p<sub>0,mf</sub>, and of the theoretical pressure drop, ∆<i>p</i><sub>t</sub>, is approximately equal to the unity. We have shown that under certain conditions, the time-volume averaged voidage, ε, of this bed can be determined in terms of simple relation (<i>13</i>).

Title:The Measurement of Voidage of Nonuniformly Fluidized Bed by Means of the Wall Pressure Signal
Creators:
Beňa, Ján
Havalda, Ivan
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:58
Number:5
Page Range:pp. 1055-1068
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19931055UNSPECIFIED
ID Code:222
Item Type:Article
Deposited On:06 Feb 2009 16:59
Last Modified:06 Feb 2009 15:59

Citation

Beňa, Ján; Havalda, Ivan (1993) The Measurement of Voidage of Nonuniformly Fluidized Bed by Means of the Wall Pressure Signal. Collection of Czechoslovak Chemical Communications, 58 (5). pp. 1055-1068. ISSN 0010-0765

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