Large-eddy simulation on a pulverized coal combustion furnace with a complex burner

Hiroaki Watanabe; Kenji Tanno; Ryoichi Kurose; Satoru Komori

doi:10.1115/AJK2011-12007

Large-eddy simulation on a pulverized coal combustion furnace with a complex burner

Hiroaki Watanabe, Kenji Tanno, Ryoichi Kurose, Satoru Komori

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Large-eddy simulation (LES) is applied to a pulverized coal combustion field in a combustion test furnace with a practical advanced low NO_x burner called CI-α burner, and its validity is investigated by comparing with the experiment. The motion of coal particles is calculated by the Lagrangian method with a parcel model. In the coal combustion modeling, three chemical processes are considered, namely devolatilization, char combustion and gaseous combustion. The direct closure SSFRRM (scale similarity filtered reaction rate model) is used as a turbulent combustion model. The results show that a swirling recirculation flow is formed in the central region close to the burner and its size and strength dynamically change with time. The predicted distributions of gaseous temperature and oxygen are in general agreement with the experiment.

Original language	English
Title of host publication	ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011
Pages	3149-3154
Number of pages	6
Volume	1
Edition	PARTS A, B, C, D
DOIs	https://doi.org/10.1115/AJK2011-12007
Publication status	Published - Dec 1 2011
Externally published	Yes
Event	ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011 - Hamamatsu, Japan Duration: Jul 24 2011 → Jul 29 2011

Other

Other	ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011
Country/Territory	Japan
City	Hamamatsu
Period	7/24/11 → 7/29/11

All Science Journal Classification (ASJC) codes

Fluid Flow and Transfer Processes

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10.1115/AJK2011-12007

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Watanabe, H, Tanno, K, Kurose, R & Komori, S 2011, Large-eddy simulation on a pulverized coal combustion furnace with a complex burner. in ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011. PARTS A, B, C, D edn, vol. 1, pp. 3149-3154, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011, Hamamatsu, Japan, 7/24/11. https://doi.org/10.1115/AJK2011-12007

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abstract = "Large-eddy simulation (LES) is applied to a pulverized coal combustion field in a combustion test furnace with a practical advanced low NOx burner called CI-α burner, and its validity is investigated by comparing with the experiment. The motion of coal particles is calculated by the Lagrangian method with a parcel model. In the coal combustion modeling, three chemical processes are considered, namely devolatilization, char combustion and gaseous combustion. The direct closure SSFRRM (scale similarity filtered reaction rate model) is used as a turbulent combustion model. The results show that a swirling recirculation flow is formed in the central region close to the burner and its size and strength dynamically change with time. The predicted distributions of gaseous temperature and oxygen are in general agreement with the experiment.",

author = "Hiroaki Watanabe and Kenji Tanno and Ryoichi Kurose and Satoru Komori",

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AU - Watanabe, Hiroaki

AU - Tanno, Kenji

AU - Kurose, Ryoichi

AU - Komori, Satoru

PY - 2011/12/1

Y1 - 2011/12/1

N2 - Large-eddy simulation (LES) is applied to a pulverized coal combustion field in a combustion test furnace with a practical advanced low NOx burner called CI-α burner, and its validity is investigated by comparing with the experiment. The motion of coal particles is calculated by the Lagrangian method with a parcel model. In the coal combustion modeling, three chemical processes are considered, namely devolatilization, char combustion and gaseous combustion. The direct closure SSFRRM (scale similarity filtered reaction rate model) is used as a turbulent combustion model. The results show that a swirling recirculation flow is formed in the central region close to the burner and its size and strength dynamically change with time. The predicted distributions of gaseous temperature and oxygen are in general agreement with the experiment.

AB - Large-eddy simulation (LES) is applied to a pulverized coal combustion field in a combustion test furnace with a practical advanced low NOx burner called CI-α burner, and its validity is investigated by comparing with the experiment. The motion of coal particles is calculated by the Lagrangian method with a parcel model. In the coal combustion modeling, three chemical processes are considered, namely devolatilization, char combustion and gaseous combustion. The direct closure SSFRRM (scale similarity filtered reaction rate model) is used as a turbulent combustion model. The results show that a swirling recirculation flow is formed in the central region close to the burner and its size and strength dynamically change with time. The predicted distributions of gaseous temperature and oxygen are in general agreement with the experiment.

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Y2 - 24 July 2011 through 29 July 2011

ER -

Large-eddy simulation on a pulverized coal combustion furnace with a complex burner

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