Minimum fluidization velocities of mixtures of biomass and sands

The present work reports studies on the fluidization of mixtures of biomass and sands. The biomass materials used are rice husk, sawdust and groundnut shell powder, and the sands employed are of two different densities and particle sizes. Experiments are carried out in a 5 cm ID fluidized bed column...

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Bibliographic Details
Published inEnergy (Oxford) Vol. 26; no. 6; pp. 633 - 644
Main Authors RAO, T. R, BHEEMARASETTI, J. V. Ram
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.06.2001
Elsevier Science
Subjects
Applied sciences
Biomass
Energy
Exact sciences and technology
Natural energy
Binary mixture
Gasification
Sand
Biomass
Fluidization
Rice
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Summary:The present work reports studies on the fluidization of mixtures of biomass and sands. The biomass materials used are rice husk, sawdust and groundnut shell powder, and the sands employed are of two different densities and particle sizes. Experiments are carried out in a 5 cm ID fluidized bed column to determine the minimum fluidization velocities. The percentage of biomass materials in the mixtures studied are 2, 5, 10 and 15% by weight. Equations are developed for predicting the U mf values of these mixtures. The equations are also tested for their validity against the data in current literature on U mf values of mixtures of biomass and sands and also mixtures of particles of different sizes only. It is found that the proposed equations quite satisfactorily predict the U mf values for mixtures of different particle densities and sizes.
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ISSN:0360-5442
DOI:10.1016/S0360-5442(01)00014-7