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

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

Research output: Chapter in Book/Report/Conference proceedingChapter


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.

Original languageEnglish
Title of host publicationProgress in Thermochemical Biomass Conversion
PublisherWiley Blackwell
Number of pages11
ISBN (Electronic)9780470694954
ISBN (Print)0632055332, 9780632055333
Publication statusPublished - Apr 7 2008


  • 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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