Analysis of Ignition Process of a Pulverized Coal Particle and Modeling of Multiphase Turbulent Combustion

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420173
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: Kyushu University (2014-2015); Central Research Institute of Electric Power Industry (2013)
• Principal Investigator: Watanabe Hiroaki 九州大学, 工学(系)研究科(研究院), 准教授 (60371598)
• Co-Investigator(Kenkyū-buntansha): TSUJI Hirofumi 一般財団法人電力中央研究所, 主任 (40371611) ; HASHIMOTO Nozomu 北海道大学, 大学院工学研究院, 准教授 (70392751)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 微粉炭燃焼 / 粒子乱流分散 / 非球形粒子運動 / 熱分解 / 詳細化学反応 / 数値解析 / レーザー計測

Outline of Final Research Achievements

Ignition process of pulverized coal particle which affects combustion performance and emission characteristics was investigated by an advanced laser diagnostics. Results revealed the detailed behavior of the soot particle formed in the pulverized coal flame which was generated by the polymerization of the tar content in the volatile matter. In order to capture the behavior by a numerical simulation, the essential elementary reactions were investigated and extracted from the detailed chemical mechanism and they implemented into the LES code. The numerical procedure was validated by the comparison with the experiment.

Free Research Field

燃焼科学