Experimental and numerical investigation of sands and Geldart A biomass co-fluidization

Lu, Liqiang; Yu, Jia; Gao, Xi; Xu, Yupeng; Shahnam, Mehrdad; Rogers, William A.

doi:10.1002/aic.16969

Title: Experimental and numerical investigation of sands and Geldart A biomass co-fluidization

Journal Article · 16 March 2020 · AIChE Journal

DOI: https://doi.org/10.1002/aic.16969 · OSTI ID:1635630

^[1]; Yu, Jia ^[2];

^[1]; Xu, Yupeng ^[1]; Shahnam, Mehrdad ^[2]; Rogers, William A. ^[2]

National Energy Technology Lab. (NETL), Morgantown, WV (United States); Leidos Research Support Team, Morgantown, WV (United States)
National Energy Technology Lab. (NETL), Morgantown, WV (United States)

This study investigated the fluidization of sands and small Geldart A biomass mixtures. The mixture fluidized like Geldart A type particles with a uniform bed expansion regime before bubbling. The video recorded color distance between pure sands and sands–biomass mixtures was used to estimate the sands–biomass mixing. The coarse-grained computational fluid dynamics–discrete element method with a hybrid drag model which couples the Syamlal–O'Brien drag and a filtered drag can capture the mixing while the simulation with Gidaspow drag predicted a segregated bed. The simulations were further validated with experimental measured pressure drops. The time averaged pressure drop equals the weight of the bed material, however, its fluctuation is about three times of the bed material fluctuation.

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Research Organization:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)

Sponsoring Organization:: USDOE Office of Fossil Energy (FE)

OSTI ID:: 1635630

Journal Information:: AIChE Journal, Vol. 66, Issue 6; ISSN 0001-1541

Publisher:: American Institute of Chemical EngineersCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 20 works

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