Experimental and numerical investigation of gas phase freeboard combustion. Part I: Main combustion process

J. Andersen, Peter Arendt Jensen, K.E. Meyer, S.L. Hvid, Peter Glarborg

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Experimental data for velocity field, temperatures, and gas composition have been obtained from a 50 kW axisymmetric non-swirling natural gas fired combustion setup under two different settings. The reactor was constructed to simulate the conditions in the freeboard of a grate-fired boiler but under well-defined conditions. The experimental results are compared to computational fluid dynamics (CFD) modeling predictions, using the eddy dissipation model (EDM) its well as the eddy dissipation concept (EDC). The use of EDC allows for implementation of more advanced combustion schemes; we have tested the four-step global mechanism by Jones and Lindstedt (Combust. Flame 1988, 73, 233-249), and the 16 species and 41 reaction skeletal mechanism by Yang and Pope (Combust. Flame 1998, 112 16-32). The CFD model captured the main features of the combustion process and flow patterns. The application of more advanced chemical mechanisms did not improve the prediction of the overall combustion process but did provide additional information about species (especially H(2) and radicals), which is desirable for postprocessing pollutant formation.
Original languageEnglish
JournalEnergy & Fuels
Volume23
Pages (from-to)5773-5782
ISSN0887-0624
DOIs
Publication statusPublished - 2009

Cite this

@article{40562d81139b4e1b903f1e179816e56b,
title = "Experimental and numerical investigation of gas phase freeboard combustion.: Part I: Main combustion process",
abstract = "Experimental data for velocity field, temperatures, and gas composition have been obtained from a 50 kW axisymmetric non-swirling natural gas fired combustion setup under two different settings. The reactor was constructed to simulate the conditions in the freeboard of a grate-fired boiler but under well-defined conditions. The experimental results are compared to computational fluid dynamics (CFD) modeling predictions, using the eddy dissipation model (EDM) its well as the eddy dissipation concept (EDC). The use of EDC allows for implementation of more advanced combustion schemes; we have tested the four-step global mechanism by Jones and Lindstedt (Combust. Flame 1988, 73, 233-249), and the 16 species and 41 reaction skeletal mechanism by Yang and Pope (Combust. Flame 1998, 112 16-32). The CFD model captured the main features of the combustion process and flow patterns. The application of more advanced chemical mechanisms did not improve the prediction of the overall combustion process but did provide additional information about species (especially H(2) and radicals), which is desirable for postprocessing pollutant formation.",
author = "J. Andersen and Jensen, {Peter Arendt} and K.E. Meyer and S.L. Hvid and Peter Glarborg",
year = "2009",
doi = "10.1021/ef900752a",
language = "English",
volume = "23",
pages = "5773--5782",
journal = "Energy & Fuels",
issn = "0887-0624",
publisher = "American Chemical Society",

}

Experimental and numerical investigation of gas phase freeboard combustion. Part I: Main combustion process. / Andersen, J.; Jensen, Peter Arendt; Meyer, K.E.; Hvid, S.L.; Glarborg, Peter.

In: Energy & Fuels, Vol. 23, 2009, p. 5773-5782.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Experimental and numerical investigation of gas phase freeboard combustion.

T2 - Part I: Main combustion process

AU - Andersen, J.

AU - Jensen, Peter Arendt

AU - Meyer, K.E.

AU - Hvid, S.L.

AU - Glarborg, Peter

PY - 2009

Y1 - 2009

N2 - Experimental data for velocity field, temperatures, and gas composition have been obtained from a 50 kW axisymmetric non-swirling natural gas fired combustion setup under two different settings. The reactor was constructed to simulate the conditions in the freeboard of a grate-fired boiler but under well-defined conditions. The experimental results are compared to computational fluid dynamics (CFD) modeling predictions, using the eddy dissipation model (EDM) its well as the eddy dissipation concept (EDC). The use of EDC allows for implementation of more advanced combustion schemes; we have tested the four-step global mechanism by Jones and Lindstedt (Combust. Flame 1988, 73, 233-249), and the 16 species and 41 reaction skeletal mechanism by Yang and Pope (Combust. Flame 1998, 112 16-32). The CFD model captured the main features of the combustion process and flow patterns. The application of more advanced chemical mechanisms did not improve the prediction of the overall combustion process but did provide additional information about species (especially H(2) and radicals), which is desirable for postprocessing pollutant formation.

AB - Experimental data for velocity field, temperatures, and gas composition have been obtained from a 50 kW axisymmetric non-swirling natural gas fired combustion setup under two different settings. The reactor was constructed to simulate the conditions in the freeboard of a grate-fired boiler but under well-defined conditions. The experimental results are compared to computational fluid dynamics (CFD) modeling predictions, using the eddy dissipation model (EDM) its well as the eddy dissipation concept (EDC). The use of EDC allows for implementation of more advanced combustion schemes; we have tested the four-step global mechanism by Jones and Lindstedt (Combust. Flame 1988, 73, 233-249), and the 16 species and 41 reaction skeletal mechanism by Yang and Pope (Combust. Flame 1998, 112 16-32). The CFD model captured the main features of the combustion process and flow patterns. The application of more advanced chemical mechanisms did not improve the prediction of the overall combustion process but did provide additional information about species (especially H(2) and radicals), which is desirable for postprocessing pollutant formation.

U2 - 10.1021/ef900752a

DO - 10.1021/ef900752a

M3 - Journal article

VL - 23

SP - 5773

EP - 5782

JO - Energy & Fuels

JF - Energy & Fuels

SN - 0887-0624

ER -