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

Miladin  Markovic; Tamoor Mughal; Artur Krzysztof Pozarlik; Gerrit  Brem

doi:10.6084/m9.figshare.9889895

Abstract

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 language	English
Pages	82
Number of pages	83
DOIs	https://doi.org/10.6084/m9.figshare.9889895
Publication status	Published - 23 Sept 2019
Event	XXIV International Symposium on Combustion Processes, ISCP 2019 - Wroclaw, Poland Duration: 23 Sept 2019 → 25 Sept 2019 Conference number: 24 http://iscp2019.pwr.edu.pl/

Conference

Conference	XXIV International Symposium on Combustion Processes, ISCP 2019
Abbreviated title	ISCP2019
Country/Territory	Poland
City	Wroclaw
Period	23/09/19 → 25/09/19
Internet address	http://iscp2019.pwr.edu.pl/

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10.6084/m9.figshare.9889895Licence: CC BY

Downward and Upward Combustion of Biomass on a Grate A case studyFinal published version, 207 KBLicence: CC BY

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title = "Downward and Upward Combustion of Biomass on a Grate: A case study",

abstract = "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].",

author = "Miladin Markovic and Tamoor Mughal and Pozarlik, {Artur Krzysztof} and Gerrit Brem",

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doi = "10.6084/m9.figshare.9889895",

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T1 - Downward and Upward Combustion of Biomass on a Grate: A case study

AU - Markovic, Miladin

AU - Mughal, Tamoor

AU - Pozarlik, Artur Krzysztof

AU - Brem, Gerrit

N1 - Conference code: 24

PY - 2019/9/23

Y1 - 2019/9/23

N2 - 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].

AB - 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].

U2 - 10.6084/m9.figshare.9889895

DO - 10.6084/m9.figshare.9889895

M3 - Abstract

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T2 - XXIV International Symposium on Combustion Processes, ISCP 2019

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

Abstract

Conference

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