Numerical modelling of a stoker furnace operated under indirect co-firing of biomass

The subject of the CFD analysis presented in this paper is the process of biomass indirect co-firing carried out in a system composed of a stoker-fired furnace coupled with a gasification reactor. The installation is characterised by its compact structure, which makes it possible to minimise heat lo...

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Bibliographic Details
Main Authors: Litka Rafał, Kalisz Sylwester
Format: Article
Language:English
Published: Polish Academy of Sciences Committee of Chemical and Process Engineering 2016-06-01
Series:Chemical and Process Engineering
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Online Access:http://www.degruyter.com/view/j/cpe.2016.37.issue-2/cpe-2016-0019/cpe-2016-0019.xml?format=INT
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Summary:The subject of the CFD analysis presented in this paper is the process of biomass indirect co-firing carried out in a system composed of a stoker-fired furnace coupled with a gasification reactor. The installation is characterised by its compact structure, which makes it possible to minimise heat losses to the environment and enhance the physical enthalpy of the oxidising agent – flue gases – having a favourable chemical composition with oxygen and water vapour. The test results provided tools for modelling of biomass thermal processing using a non-standard oxidiser in the form of flue gases. The obtained models were used to optimise the indirect co-combustion process to reduce emissions. An overall effect of co-combustion of gas from biomass gasification in the stoker furnace is the substantial reduction in NO emissions by about 22%.
ISSN:2300-1925