Modeling of the biomass combustion on a forward acting grate using XDEM

Amir Houshang Mahmoudi*, Xavier Besseron, Florian Hoffmann, Miladin Markovic, Bernhard Peters

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    21 Citations (Scopus)

    Abstract

    The grate firing system is one of the most common ways for the combustion of biomass because it is able to burn a broad range of fuels with only little or even no requirement for fuel preparation. In order to improve the fuel combustion efficiency, it is important to understand the details of the thermochemical process in such furnaces. However, the process is very complex due to many involved physical and chemical phenomena such as drying, pyrolysis, char combustion, gas phase reaction, two phase flow and many more. The main objective of this work is to study precisely the involved processes in biomass combustion on a forward acting grate and provide a detailed insight into the local and global conversion phenomena. For this purpose, XDEM as an Euler-Lagrange model is used, in which the fluid phase is a continuous phase and each particle is tracked with a Lagrangian approach. The model has been compared with experimental data. Very good agreements between simulation and measurement have been achieved, proving the ability of the model to predict the biomass combustion under study on the grate.

    Original languageEnglish
    Pages (from-to)32-41
    Number of pages10
    JournalChemical engineering science
    Volume142
    DOIs
    Publication statusPublished - 13 Mar 2016

    Keywords

    • Biomass
    • Combustion
    • Forward acting grate
    • Modeling

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