Investigations of the transportation characteristics of biomass fuel particles in a horizontal pipeline through CFD modelling and experimental measurement

Gubba, S.R. and Ingham, D.B. and Larsen, Kris J. and Ma, Lin and Pourkashanian, M. and Qian, Xiangchen and Williams, A. and Yan, Yong (2012) Investigations of the transportation characteristics of biomass fuel particles in a horizontal pipeline through CFD modelling and experimental measurement. Biomass and Bioenergy, 46 . pp. 492-510. ISSN 0961-9534. (doi:https://doi.org/10.1016/j.biombioe.2012.07.010) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Official URL
http://dx.doi.org/10.1016/j.biombioe.2012.07.010

Abstract

Recent national and international emission legislations to reduce emissions of carbon dioxide are forcing power generation industries using coal to look at various alternatives, such as biomass and especially by co-firing techniques. Biomass is transported to the burners either mixed with the primary fuel, in general, coal, or used in dedicated pipelines. In both cases, transportation of biomass is difficult due to its composition, size, shape and physical behaviour in comparison to the transportation of coal. This study considers experimental measurements for biomass particle transportation in a pipeline with a transverse elbow and compares the results with those using computation fluid dynamic (CFD) techniques. Various materials: flour, willow, wood, bark and a mixture of flour and willow, have been considered in the present investigation. The experimental work was performed using the dynamic changes in the electrostatic charges of biomass particles in conjunction with correlation signal processing techniques. The CFD simulations were performed by considering the effects of gravity, non-spherical drag (based on estimated shape factor), detailed information of the particle distribution, particle wall collisions and particle–particle interactions. Good quantitative and qualitative agreement was obtained between the CFD simulations and the experimental data. It is concluded that particle–particle interactions are of less importance if the mass loading ratio of particles to air is less than 0.03.

Item Type: Article
Uncontrolled keywords: CFD modelling; Gas-solid flow; Biomass-coal co-firing; Particle velocity; Non-spherical particles; Particle–particle interactions
Subjects: T Technology
Divisions: Faculties > Sciences > School of Engineering and Digital Arts
Faculties > Sciences > School of Engineering and Digital Arts > Instrumentation, Control and Embedded Systems
Depositing User: Tina Thompson
Date Deposited: 24 Oct 2013 13:06 UTC
Last Modified: 25 Jun 2014 13:14 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/35614 (The current URI for this page, for reference purposes)
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