Evaluation of Fluidization Quality by Time-Series of Pressure Fluctuations

0326611 - ÚCHP 2010 SK eng C - Conference Paper (international conference)
Hartman, Miloslav - Trnka, Otakar - Svoboda, Karel - Pohořelý, Michael
Evaluation of Fluidization Quality by Time-Series of Pressure Fluctuations.
Proceedings. Bratislava: Slovak University of Technology, 2009 - (Markoš, J.), s. 271. ISBN 978-80-227-3072-3.
[International Conference of Slovak Society of Chemical Engineering /36./. Tatranské Matliare (SK), 25.05.2009-29.05.2009]
R&D Projects: GA AV ČR IAA400720701
Institutional research plan: CEZ:AV0Z40720504
Keywords : gas-solid fluidization * pressure fluctuations * fluctuation characteristics
Subject RIV: CI - Industrial Chemistry, Chemical Engineering

Experimental measurements were performed in a transparent glass, 6-m-tall column with an inner diameter of 0.08 m. Three different kinds of solids, were employed in the experiments: ceramsite, glass beads and high-calcium, coarse-grained limestone. It was discovered that the different bubbling regimes, classified into several types, can be unambiguously identified according to a single numerical value of the quantity M computed from the pressure fluctuations measured within the bed. It was also established that the energy function, normalized with respect to pressure conditions in the column, Er, is well suited to pinpoint the starting point of dilute.
Permanent Link: http://hdl.handle.net/11104/0173659