Article | Proceedings of The 60th SIMS Conference on Simulation and Modelling SIMS 2019, August 12-16, Västerås, Sweden | Simulation of air-biomass gasification in a bubbling fluidized bed using CPFD model Linköping University Electronic Press Conference Proceedings
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Title:
Simulation of air-biomass gasification in a bubbling fluidized bed using CPFD model
Author:
Ramesh Timsina: Department of Process Energy and Environmental Technology University of South-Eastern Norway Britt Moldestad: Department of Process Energy and Environmental Technology University of South-Eastern Norway Marianne S. Eikeland: Department of Process Energy and Environmental Technology University of South-Eastern Norway Rajan K. Thapa: Department of Process Energy and Environmental Technology University of South-Eastern Norway
DOI:
https://doi.org/10.3384/ecp20170145
Download:
Full text (pdf)
Year:
2019
Conference:
Proceedings of The 60th SIMS Conference on Simulation and Modelling SIMS 2019, August 12-16, Västerås, Sweden
Issue:
170
Article no.:
022
Pages:
145-150
No. of pages:
6
Publication type:
Abstract and Fulltext
Published:
2020-01-24
ISBN:
978-91-7929-897-5
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press, Linköpings universitet


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Biomass is a renewable energy source. Biomass gasification process produces producer gas, which can be further used for power generation or as raw materials for the production of secondary fuels. Experiment on the air gasification of biomass in a bubbling fluidized bed reactor was performed in a pilot-scale reactor located at the University of South-Eastern Norway (USN). A kinetics-based simulation model was developed based on MultiPhase Particle-In-Cell MP-PIC approach, using commercial software Barracuda®, and the results were compared with the experimental data. The average volume percentage of carbon monoxide, hydrogen, methane and nitrogen were found to be around 20%, 10%, 7% and 38% respectively in the experiment. The simulation results agree well for carbon monoxide, hydrogen and methane, but there is a difference in nitrogen volume percentage compared to the experimental results. The oxygen concentration during the experiment was around 1% suggesting a good performance of the gasifier. The char partial oxidation is less significant compared to the homogenous phase reactions. This shows that devolatilization reaction and the homogenous phase reactions dominate the char gasification reaction.

Keywords: air-biomass gasification, bubbling fluidized bed, CPFD

Proceedings of The 60th SIMS Conference on Simulation and Modelling SIMS 2019, August 12-16, Västerås, Sweden

Author:
Ramesh Timsina, Britt Moldestad, Marianne S. Eikeland, Rajan K. Thapa
Title:
Simulation of air-biomass gasification in a bubbling fluidized bed using CPFD model
DOI:
10.3384/ecp20170145
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Proceedings of The 60th SIMS Conference on Simulation and Modelling SIMS 2019, August 12-16, Västerås, Sweden

Author:
Ramesh Timsina, Britt Moldestad, Marianne S. Eikeland, Rajan K. Thapa
Title:
Simulation of air-biomass gasification in a bubbling fluidized bed using CPFD model
DOI:
https://doi.org10.3384/ecp20170145
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