Pressure Fluctuations in a Gas-Solid Fluidized Bed

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F08%3A00309191" target="_blank" >RIV/67985858:_____/08:00309191 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Pressure Fluctuations in a Gas-Solid Fluidized Bed

Original language description

An analysis method is developed and applied which employs spectra of the Fast Fourier Transform of measured pressure fluctuations within the fluidized bed. The procedure is based upon the spectral analysis of successive time series of pressure fluctuations reflecting the actual hydrodynamic state of the bed. Practical application of the method is illustrated for fluidization at ambient temperature and pressure of spherical particles (glass beads) as well as irregularly shaped particles (limestone, sulfated limestone, and dried sewage sludge), in an 8-cm ? ID fluidized bed. Using air, experiments were conducted with different fractions of the materials spanning a very wide range of 0.28 ? 4.5 mm. The evolution was explored of bed behavior from the onsetof fluidization to pneumatic transport (elutriation) of solids from the bed. The method recognizes alterations of the hydrodynamic state of the bed caused by minor changes in the bed mass and/or in the granularity of the bed material

Czech name

Fluktuace tlaku ve vrstvě zrnitého materiálu fluidované plynem

Czech description

Navržená a ověřená metoda využívající fluidační charakteristiky umožňuje určovat hydrodynamicý režim fluidní vrstvy. Jednotlivé stavy vrstvy jsou objektivně definovány a vymezeny na základě úseků fluktuačních křivek.

Type

D - Article in proceedings

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

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Project

<a href="/en/project/IAA400720701" target="_blank" >IAA400720701: Fluidization and decontamination of organic-polluted solids in a fluid-bed reactor</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings

ISBN

978-80-227-2903-1

ISSN

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e-ISSN

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Number of pages

1

Pages from-to

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Publisher name

Slovak Society of Chemical Engineering

Place of publication

Bratislava

Event location

Tatranské Matliare

Event date

May 26, 2008

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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