Title:
Detailed CFD Simulations of the Fuel Bed of an Updraft Gasifier and Comparison to Experimental Results
Author(s):
Blank, M., Benesch, C., Knauss, G., Obernberger, I.
Document(s):
Paper
Slide presentation
Abstract:
A detailed CFD analysis of the fuel bed of a pilot-scale (nominal fuel power 450 kW) updraft gasifier powered by softwood chips (spruce) is presented, and the results are compared to measurement data. The CFD model allows an in-depth analysis of the conversion process in the gasifier bed, as well as a detailed description of tar formation which is of great relevance regarding the subsequent gas treatment. The simulation results show good agreement with the measured data for the composition of the producer gas and for the temperature profiles inside the fuel bed. Furthermore, the simulation allows the identification of the main conversion zones for drying, pyrolysis, charcoal gasification and combustion inside the fuel bed.
Keywords:
fixed bed, gasification, modelling, pyrolysis, wood chip, computational fluid dynamics (CFD)
Topic:
Biomass Conversion for Bioenergy
Subtopic:
Gasification for Power, CHP and Polygeneration
Event:
29th European Biomass Conference and Exhibition
Session:
2BO.8.3
Pages:
451 - 457
ISBN:
978-88-89407-21-9
Paper DOI:
10.5071/29thEUBCE2021-2BO.8.3
Price:
FREE
