Lesと拡張 CPD モデルを用いた高炉羽口部の微粉炭燃焼挙動の予測

Translated title of the contribution: Prediction of pulverized coal combustion behavior around tuyere by using LES and extended CPD model

Tomoyuki Kawashima, Akinori Murao, Naoki Yamamoto, Makoto Ando, Jun Okada, Hiroaki Watanabe

Research output: Contribution to journalArticle

Abstract

Synopsis: Pulverized coal injection into blast furnace is the precious technology to decrease the iron making cost. To inject more pulverized coal, it is necessary to investigate the combustion behavior of pulverized coal around the tuyere and many numerical simulations as well as experiments have been carried out. In this paper, by using Extended CPD model which is new devolatilization model and Large Eddy Simulation model, the combustion behavior of individual pulverized coal particles was investigated. The volume fraction of CO+CO2 which is the indicator of how much carbon included in pulverized coal changed to gas phase was reasonably predicted by new simulation model. It is suggested the devolatilization processes of pulverized coals under 40 µm varied widely between individual particles.

Original languageJapanese
Pages (from-to)766-775
Number of pages10
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume104
Issue number12
DOIs
Publication statusPublished - Dec 2018

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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