On the mechanism of turbulent premixed combustion in a porous pebble bed at high pressure and high temperature

多孔球石床高压高温湍流预混燃烧机理研究

• 批准号: 22656052
• 负责人: KOBAYASHI Hideaki
• 金额: $ 2.11万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22656052/
• 关键词: 熱工学; 燃焼工学; 計測工学; 環境技術; 流体工学; 乱流燃焼; 高圧燃焼; ペブル充填層

Flame propagation experiments were performed for a pebble bed at high pressure and high temperature. Flame speed in the bed was measured and OH-PLIF of the propagating flame front was performed. Results showed that the mode of the flame speed changed with increasing pressure and the flame becomes turbulent flame even though it propagates through very small matrix channels. Flame propagation limit was also observed and the limit was proved to be determined by the competition between heat release from the flame and heat loss to the pebbles.

在高温高压条件下对卵石床进行了火焰传播实验。测量了床层中的火焰速度，并进行了传播火焰前缘的OH-PLIF。结果表明，火焰传播速度随压力的增加而改变，即使通过很小的基质通道，火焰也会变成湍流火焰。火焰传播极限也被观察到，并被证明是由从火焰的热释放和热损失的卵石之间的竞争。

项目成果

Turbulent Flame Propagation for Preheated CH4/air Mixture in a Packed Pebble Bed at High Pressure

高压填充卵石床中预热 CH4/空气混合物的湍流火焰传播

• 发表时间: 2010
• 作者: M. Okuyama;T. Suzuki;Y. Ogami;M. Kumagami;H. Kobayashi
• 通讯作者: H. Kobayashi

Turbulent combustion characteristics of premixed gases in a packed pebble bed at high pressure

• DOI: 10.1016/j.proci.2010.05.071
• 发表时间: 2011
• 作者: Masaki Okuyama;Takuro Suzuki;Yasuhiro Ogami;M. Kumagami;Hideaki Kobayashi

Flame structure and propagation mechanism through meso-scale flow channel network in a packed bed at high pressure

高压填充床中细观流道网络的火焰结构和传播机制

• 发表时间: 2012
• 作者: Masaki Okuyama;Takuro Suzuki;Jinhua Wang;Yasuhiro Ogami;Hideaki Kobayashi
• 通讯作者: Hideaki Kobayashi

Turbulent Flame Propagation for Preheated CH_4/air Mixture in a Packed Pebble Bed at High Pressure

高压填充球床内预热CH_4/空气混合物的湍流火焰传播

• 发表时间: 2010
• 作者: M.Okuyama;T.Suzuki;Y.Ogami;M.Kumagami;H.Kobayashi
• 通讯作者: H.Kobayashi

ペブル充填層内を伝播する乱流予混合火炎の基礎特性と雰囲気圧力の影響

卵石填充床内湍流预混火焰传播的基本特性及大气压力的影响

• 发表时间: 2010
• 作者: 奥山昌紀;鈴木拓朗;大上泰寛;熊上学;小林秀昭
• 通讯作者: 小林秀昭