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 proceedingConference contribution

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.

Original languageEnglish
Title of host publicationASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011
Pages3149-3154
Number of pages6
Volume1
EditionPARTS A, B, C, D
DOIs
Publication statusPublished - Dec 1 2011
Externally publishedYes
EventASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011 - Hamamatsu, Japan
Duration: Jul 24 2011Jul 29 2011

Other

OtherASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011
CountryJapan
CityHamamatsu
Period7/24/117/29/11

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All Science Journal Classification (ASJC) codes

  • Fluid Flow and Transfer Processes

Cite this

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 ed., Vol. 1, pp. 3149-3154) https://doi.org/10.1115/AJK2011-12007