Fundamental Fluid-Dynamic Investigations in a Scaled Cold Model for Biomass Steam-Gasification

R. Kehlenbeck; J. G. Yates; R. Di Felice

doi:10.1002/9780470694954.ch13

Fundamental Fluid-Dynamic Investigations in a Scaled Cold Model for Biomass Steam-Gasification

R. Kehlenbeck, J. G. Yates, R. Di Felice

School of Engineering and Digital Sciences

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

The hydrodynamic behaviour of a one-fifth scale cold model of a 500 kW^th pilot plant has been studied. The plant is based on the circulating fluidized bed (CFB) principle and consists of a bubbling bed steam gasifier and a riser combustor. It is designed to produce a hydrogen-rich gas to be fed to a fuel cell for electricity generation. The cold model was constructed on the basis of established fluid-bed scaling laws and was built of perspex to enable the bed behaviour to be observed directly. Solids circulation rates and gas cross-flow between combustor and riser were investigated. A novel scaling parameter believed to be generally applicable to flow in risers was developed on the basis of these experiments.

Original language	English
Title of host publication	Progress in Thermochemical Biomass Conversion
Publisher	Wiley Blackwell
Pages	188-198
Number of pages	11
ISBN (Electronic)	9780470694954
ISBN (Print)	0632055332, 9780632055333
DOIs	https://doi.org/10.1002/9780470694954.ch13
Publication status	Published - Apr 7 2008

Keywords

Biomass steam-gasification
Fluid-dynamic
Fuel cell
Hydrodynamic
Scaled cold model

ASJC Scopus subject areas

Biochemistry, Genetics and Molecular Biology(all)

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10.1002/9780470694954.ch13

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AU - Yates, J. G.

AU - Di Felice, R.

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N2 - The hydrodynamic behaviour of a one-fifth scale cold model of a 500 kWth pilot plant has been studied. The plant is based on the circulating fluidized bed (CFB) principle and consists of a bubbling bed steam gasifier and a riser combustor. It is designed to produce a hydrogen-rich gas to be fed to a fuel cell for electricity generation. The cold model was constructed on the basis of established fluid-bed scaling laws and was built of perspex to enable the bed behaviour to be observed directly. Solids circulation rates and gas cross-flow between combustor and riser were investigated. A novel scaling parameter believed to be generally applicable to flow in risers was developed on the basis of these experiments.

AB - The hydrodynamic behaviour of a one-fifth scale cold model of a 500 kWth pilot plant has been studied. The plant is based on the circulating fluidized bed (CFB) principle and consists of a bubbling bed steam gasifier and a riser combustor. It is designed to produce a hydrogen-rich gas to be fed to a fuel cell for electricity generation. The cold model was constructed on the basis of established fluid-bed scaling laws and was built of perspex to enable the bed behaviour to be observed directly. Solids circulation rates and gas cross-flow between combustor and riser were investigated. A novel scaling parameter believed to be generally applicable to flow in risers was developed on the basis of these experiments.

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