Characterizing and modeling of an 88 MW grate-fired boiler burning wheat straw: Experience and lessons

Publication: Research - peer-reviewConference article – Annual report year: 2012

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Characterizing and modeling of an 88 MW grate-fired boiler burning wheat straw: Experience and lessons. / Yin, Chungen; Rosendahl, Lasse Aistrup; Clausen, Sønnik; Hvid, Søren.

In: Energy, 2012, p. 473-482.

Publication: Research - peer-reviewConference article – Annual report year: 2012

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Yin, Chungen; Rosendahl, Lasse Aistrup; Clausen, Sønnik; Hvid, Søren / Characterizing and modeling of an 88 MW grate-fired boiler burning wheat straw: Experience and lessons.

In: Energy, 2012, p. 473-482.

Publication: Research - peer-reviewConference article – Annual report year: 2012

Bibtex

@article{4158ba1a92174df095db94b87c60572b,
title = "Characterizing and modeling of an 88 MW grate-fired boiler burning wheat straw: Experience and lessons",
keywords = "Biomass, Grate-firing, CFD, Higher efficiency, Lower emissions",
publisher = "Pergamon",
author = "Chungen Yin and Rosendahl, {Lasse Aistrup} and Sønnik Clausen and Søren Hvid",
year = "2012",
doi = "10.1016/j.energy.2012.02.050",
pages = "473--482",
journal = "Energy",
issn = "0360-5442",

}

RIS

TY - CONF

T1 - Characterizing and modeling of an 88 MW grate-fired boiler burning wheat straw: Experience and lessons

A1 - Yin,Chungen

A1 - Rosendahl,Lasse Aistrup

A1 - Clausen,Sønnik

A1 - Hvid,Søren

AU - Yin,Chungen

AU - Rosendahl,Lasse Aistrup

AU - Clausen,Sønnik

AU - Hvid,Søren

PB - Pergamon

PY - 2012

Y1 - 2012

N2 - Grate-firing is one of the main technologies currently used for biomass combustion for heat and power production. However, grate-firing is yet to be further developed, towards a better technology for biomass combustion, particularly towards higher efficiency, lower emissions, and better reliability and availability. To better understand grate-firing of biomass and to establish a reliable but relatively simple Computational Fluid Dynamics (CFD) modeling methodology for industrial applications, biomass combustion in a number of different grate boilers has been measured and modeled. As one of the case studies, modeling effort on an 88 MW grate-fired boiler burning wheat straw is presented in this paper. Different modeling issues and their expected impacts on CFD analysis of the kind of grate boilers are discussed. The modeling results are compared with in-flame measurements in the 88 MW boiler, which shows an acceptable agreement. The discrepancies are analyzed from different aspects. The lessons learned and experience gained from this and other case studies are summarized and discussed in detail, which can facilitate the modeling validation effort as well as improve grate-firing technology. Some of the addressed measures will be tested in a modern 500 kW grate boiler rig

AB - Grate-firing is one of the main technologies currently used for biomass combustion for heat and power production. However, grate-firing is yet to be further developed, towards a better technology for biomass combustion, particularly towards higher efficiency, lower emissions, and better reliability and availability. To better understand grate-firing of biomass and to establish a reliable but relatively simple Computational Fluid Dynamics (CFD) modeling methodology for industrial applications, biomass combustion in a number of different grate boilers has been measured and modeled. As one of the case studies, modeling effort on an 88 MW grate-fired boiler burning wheat straw is presented in this paper. Different modeling issues and their expected impacts on CFD analysis of the kind of grate boilers are discussed. The modeling results are compared with in-flame measurements in the 88 MW boiler, which shows an acceptable agreement. The discrepancies are analyzed from different aspects. The lessons learned and experience gained from this and other case studies are summarized and discussed in detail, which can facilitate the modeling validation effort as well as improve grate-firing technology. Some of the addressed measures will be tested in a modern 500 kW grate boiler rig

KW - Biomass

KW - Grate-firing

KW - CFD

KW - Higher efficiency

KW - Lower emissions

U2 - 10.1016/j.energy.2012.02.050

DO - 10.1016/j.energy.2012.02.050

JO - Energy

JF - Energy

SN - 0360-5442

SP - 473

EP - 482

ER -