Downward and Upward Combustion of Biomass on a Grate: A case study

Miladin Markovic, Tamoor Mughal*, Artur Krzysztof Pozarlik, Gerrit Brem

*Corresponding author for this work

Research output: Contribution to conferenceAbstract

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Grate firing is widely used technique for biomass combustion. This is mainly due to its high flexibility and minor requirements regarding fuel pre-treatment. In industrial grate fired furnaces, the main combustion configuration is downward combustion on the grate, the solid combustion is in contra flow with the combustion air. However, conventional grate combustion faces some problems with complete combustion and process control. The processes of drying, devolatilization and burnout occur irregularly over the grate, which may result in non-uniform and unsteady release of volatiles. This can lead to formation of fuel rich zones in the freeboard height and thus some volatiles may leave the boiler unburnt [1]. The upward combustion is a new concept and is very promising because it is less sensitive to fuel moisture content, has low ash entrainment with rapid conversion of solid fuel and decouples drying, devolatilization and burnout phases [2].
Original languageEnglish
Number of pages83
Publication statusPublished - 23 Sep 2019
EventXXIV International Symposium on Combustion Processes, ISCP 2019 - Wroclaw, Poland
Duration: 23 Sep 201925 Sep 2019
Conference number: 24


ConferenceXXIV International Symposium on Combustion Processes, ISCP 2019
Abbreviated titleISCP2019
Internet address


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