Modeling of conversion of a single fuel particle in a CFD model for CFB combustion

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

In CFB combustion, fuel conversion is limited by mass and heat transfer and chemical reactions inside the particle. In CFD simulation, computation of the local instantaneous conversion rate of a single fuel particle should be fast. The objective of the present study is to convert a shrinking particle model for coal combustion into a correlation based description that can easily be implemented in a CFD code. The single particle model was used to produce net reaction rates averaged over particle volume in a wide range of fluidization, temperature and composition conditions. The data was used to train neural network models that are fast to compute and easy to implement in a CFD code.
Original languageEnglish
Title of host publicationProceedings
PublisherCzestochowa University of Technology
Pages765-772
Number of pages8
ISBN (Print)978-83-62079-16-2
Publication statusPublished - 1 Jan 2017
MoE publication typeA4 Article in a conference publication
Event12th International Conference on Fluidized Bed Technology, CFB-12 - Krakow, Poland
Duration: 23 May 201726 May 2017

Conference

Conference12th International Conference on Fluidized Bed Technology, CFB-12
Abbreviated titleCFB-12
CountryPoland
CityKrakow
Period23/05/1726/05/17

Fingerprint

Computational fluid dynamics
Coal combustion
Fluidization
Reaction rates
Chemical reactions
Mass transfer
Heat transfer
Neural networks
Chemical analysis
Temperature

Keywords

  • char
  • combustion
  • gasification
  • modeling
  • neural network
  • shrinking particle

Cite this

Niemi, T., & Kallio, S. (2017). Modeling of conversion of a single fuel particle in a CFD model for CFB combustion. In Proceedings (pp. 765-772). Czestochowa University of Technology.
Niemi, Timo ; Kallio, Sirpa. / Modeling of conversion of a single fuel particle in a CFD model for CFB combustion. Proceedings. Czestochowa University of Technology, 2017. pp. 765-772
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Niemi, T & Kallio, S 2017, Modeling of conversion of a single fuel particle in a CFD model for CFB combustion. in Proceedings. Czestochowa University of Technology, pp. 765-772, 12th International Conference on Fluidized Bed Technology, CFB-12, Krakow, Poland, 23/05/17.

Modeling of conversion of a single fuel particle in a CFD model for CFB combustion. / Niemi, Timo; Kallio, Sirpa.

Proceedings. Czestochowa University of Technology, 2017. p. 765-772.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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Niemi T, Kallio S. Modeling of conversion of a single fuel particle in a CFD model for CFB combustion. In Proceedings. Czestochowa University of Technology. 2017. p. 765-772