Effect of reactions in small eddies on biomass gasification with eddy dissipation concept - Sub-grid scale reaction model

Juhui Chen; Weijie Yin; Shuai Wang; Cheng Meng; Jiuru Li; Bai Qin; Guangbin Yu

doi:10.1016/j.biortech.2016.02.139

Effect of reactions in small eddies on biomass gasification with eddy dissipation concept - Sub-grid scale reaction model

Juhui Chen^*
, Weijie Yin
, Shuai Wang
, Cheng Meng
, Jiuru Li
, Bai Qin
, Guangbin Yu

^*Corresponding author for this work

Harbin University of Science and Technology
School of Energy Science and Engineering, Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Large-eddy simulation (LES) approach is used for gas turbulence, and eddy dissipation concept (EDC)-sub-grid scale (SGS) reaction model is employed for reactions in small eddies. The simulated gas molar fractions are in better agreement with experimental data with EDC-SGS reaction model. The effect of reactions in small eddies on biomass gasification is emphatically analyzed with EDC-SGS reaction model. The distributions of the SGS reaction rates which represent the reactions in small eddies with particles concentration and temperature are analyzed. The distributions of SGS reaction rates have the similar trend with those of total reactions rates and the values account for about 15% of the total reactions rates. The heterogeneous reaction rates with EDC-SGS reaction model are also improved during the biomass gasification process in bubbling fluidized bed.

Original language	English
Pages (from-to)	93-100
Number of pages	8
Journal	Bioresource Technology
Volume	211
DOIs	https://doi.org/10.1016/j.biortech.2016.02.139
State	Published - 1 Jul 2016
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Biomass gasification
Bubbling fluidized bed
EDC-SGS reaction model
Large-eddy simulation
SGS reaction rates

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10.1016/j.biortech.2016.02.139

Cite this

@article{36cb2c1fa7a649f49da6120139719d66,

title = "Effect of reactions in small eddies on biomass gasification with eddy dissipation concept - Sub-grid scale reaction model",

abstract = "Large-eddy simulation (LES) approach is used for gas turbulence, and eddy dissipation concept (EDC)-sub-grid scale (SGS) reaction model is employed for reactions in small eddies. The simulated gas molar fractions are in better agreement with experimental data with EDC-SGS reaction model. The effect of reactions in small eddies on biomass gasification is emphatically analyzed with EDC-SGS reaction model. The distributions of the SGS reaction rates which represent the reactions in small eddies with particles concentration and temperature are analyzed. The distributions of SGS reaction rates have the similar trend with those of total reactions rates and the values account for about 15\% of the total reactions rates. The heterogeneous reaction rates with EDC-SGS reaction model are also improved during the biomass gasification process in bubbling fluidized bed.",

keywords = "Biomass gasification, Bubbling fluidized bed, EDC-SGS reaction model, Large-eddy simulation, SGS reaction rates",

author = "Juhui Chen and Weijie Yin and Shuai Wang and Cheng Meng and Jiuru Li and Bai Qin and Guangbin Yu",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd.",

year = "2016",

month = jul,

day = "1",

doi = "10.1016/j.biortech.2016.02.139",

language = "英语",

volume = "211",

pages = "93--100",

journal = "Bioresource Technology",

issn = "0960-8524",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Effect of reactions in small eddies on biomass gasification with eddy dissipation concept - Sub-grid scale reaction model

AU - Chen, Juhui

AU - Yin, Weijie

AU - Wang, Shuai

AU - Meng, Cheng

AU - Li, Jiuru

AU - Qin, Bai

AU - Yu, Guangbin

PY - 2016/7/1

Y1 - 2016/7/1

N2 - Large-eddy simulation (LES) approach is used for gas turbulence, and eddy dissipation concept (EDC)-sub-grid scale (SGS) reaction model is employed for reactions in small eddies. The simulated gas molar fractions are in better agreement with experimental data with EDC-SGS reaction model. The effect of reactions in small eddies on biomass gasification is emphatically analyzed with EDC-SGS reaction model. The distributions of the SGS reaction rates which represent the reactions in small eddies with particles concentration and temperature are analyzed. The distributions of SGS reaction rates have the similar trend with those of total reactions rates and the values account for about 15% of the total reactions rates. The heterogeneous reaction rates with EDC-SGS reaction model are also improved during the biomass gasification process in bubbling fluidized bed.

AB - Large-eddy simulation (LES) approach is used for gas turbulence, and eddy dissipation concept (EDC)-sub-grid scale (SGS) reaction model is employed for reactions in small eddies. The simulated gas molar fractions are in better agreement with experimental data with EDC-SGS reaction model. The effect of reactions in small eddies on biomass gasification is emphatically analyzed with EDC-SGS reaction model. The distributions of the SGS reaction rates which represent the reactions in small eddies with particles concentration and temperature are analyzed. The distributions of SGS reaction rates have the similar trend with those of total reactions rates and the values account for about 15% of the total reactions rates. The heterogeneous reaction rates with EDC-SGS reaction model are also improved during the biomass gasification process in bubbling fluidized bed.

KW - Biomass gasification

KW - Bubbling fluidized bed

KW - EDC-SGS reaction model

KW - Large-eddy simulation

KW - SGS reaction rates

UR - https://www.scopus.com/pages/publications/84961629702

U2 - 10.1016/j.biortech.2016.02.139

DO - 10.1016/j.biortech.2016.02.139

M3 - 文章

C2 - 27010338

AN - SCOPUS:84961629702

SN - 0960-8524

VL - 211

SP - 93

EP - 100

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Effect of reactions in small eddies on biomass gasification with eddy dissipation concept - Sub-grid scale reaction model

Abstract

UN SDGs

Keywords

Access to Document

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