CFD study of a sudden-expanding coal combustor using Euler-Euler and Euler-Lagrange models

Yu Zhang; Xiao Lin Wei; Da You Liu

doi:10.1016/j.fuel.2010.07.038

CFD study of a sudden-expanding coal combustor using Euler-Euler and Euler-Lagrange models

Yu Zhang^*, Xiao Lin Wei, Da You Liu

^*Corresponding author for this work

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

6 Citations (Scopus)

Abstract

In this study, the Euler-Euler (E-E) and Euler-Lagrange (E-L) models designed for the same chemical mechanism of heterogeneous reactions were used to predict the performance of a typical sudden-expanding coal combustor. The results showed that the current E-E model underestimated the coal burnout rate because the particle temperature fluctuation on char combustion is not adequately considered. A comparison of the E-E and E-L simulations showed the underestimation of heterogeneous chemical reaction rates by the E-E model.

Original language	English
Pages (from-to)	3643-3649
Number of pages	7
Journal	Fuel
Volume	89
Issue number	12
DOIs	https://doi.org/10.1016/j.fuel.2010.07.038
Publication status	Published - Dec 2010

Keywords

Heterogeneous reactions
Multiphase turbulent flow
Particle temperature fluctuation

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10.1016/j.fuel.2010.07.038

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title = "CFD study of a sudden-expanding coal combustor using Euler-Euler and Euler-Lagrange models",

abstract = "In this study, the Euler-Euler (E-E) and Euler-Lagrange (E-L) models designed for the same chemical mechanism of heterogeneous reactions were used to predict the performance of a typical sudden-expanding coal combustor. The results showed that the current E-E model underestimated the coal burnout rate because the particle temperature fluctuation on char combustion is not adequately considered. A comparison of the E-E and E-L simulations showed the underestimation of heterogeneous chemical reaction rates by the E-E model.",

keywords = "Heterogeneous reactions, Multiphase turbulent flow, Particle temperature fluctuation",

author = "Yu Zhang and Wei, {Xiao Lin} and Liu, {Da You}",

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T1 - CFD study of a sudden-expanding coal combustor using Euler-Euler and Euler-Lagrange models

AU - Zhang, Yu

AU - Wei, Xiao Lin

AU - Liu, Da You

PY - 2010/12

Y1 - 2010/12

N2 - In this study, the Euler-Euler (E-E) and Euler-Lagrange (E-L) models designed for the same chemical mechanism of heterogeneous reactions were used to predict the performance of a typical sudden-expanding coal combustor. The results showed that the current E-E model underestimated the coal burnout rate because the particle temperature fluctuation on char combustion is not adequately considered. A comparison of the E-E and E-L simulations showed the underestimation of heterogeneous chemical reaction rates by the E-E model.

AB - In this study, the Euler-Euler (E-E) and Euler-Lagrange (E-L) models designed for the same chemical mechanism of heterogeneous reactions were used to predict the performance of a typical sudden-expanding coal combustor. The results showed that the current E-E model underestimated the coal burnout rate because the particle temperature fluctuation on char combustion is not adequately considered. A comparison of the E-E and E-L simulations showed the underestimation of heterogeneous chemical reaction rates by the E-E model.

KW - Heterogeneous reactions

KW - Multiphase turbulent flow

KW - Particle temperature fluctuation

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U2 - 10.1016/j.fuel.2010.07.038

DO - 10.1016/j.fuel.2010.07.038

M3 - Article

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EP - 3649

JO - Fuel

JF - Fuel

IS - 12

ER -

CFD study of a sudden-expanding coal combustor using Euler-Euler and Euler-Lagrange models

Abstract

Keywords

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