Turbulent flame propagation and extinction behaviors and mechanisms of solid particle fuel/ammonia co-combustion

固体颗粒燃料/氨混燃湍流火焰传播和熄灭行为及机理

• 批准号: 22K20395
• 负责人: Xia Yu
• 金额: $ 1.25万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Research Activity Start-up
• 财政年份: 2022
• 资助国家: 日本
• 起止时间: 2022-08-31 至 2024-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22K20395/
• 关键词: Ammonia combustion; Particles combustion; Co-combustion; Flame extinction; Flame propagation; Solid fuel combustion; Flame stability; Turbulent combustion

In this fiscal year, research was smoothly progressed.First, experiments on turbulent flame propagation and extinction on pure ammonia combustion and particle cloud/ammonia co-combustion were separately conducted.Second, comparison between pure ammonia combustion and co-combustion was finished. It was found that volatile matters from particles have an important effect on turbulent flame propagation and extinction of co-combustion. When ammonia equivalence ratio is lower than unity, the volatile matter enhances flame stability. However, in ammonia rich cases, it has negative effect.Third, turbulent flame propagation and extinction mechanisms were proposed to understand the phenomena.

本财年，研究进展顺利。首先，分别进行了纯氨燃烧和颗粒云/氨混燃的湍流火焰传播和熄灭实验。其次，对纯氨燃烧和混燃进行了对比。结果表明，颗粒挥发分对湍流火焰传播和混燃熄灭有重要影响。当氨当量比小于1时，挥发分提高了火焰的稳定性。然而，在富氨的情况下，它具有负面影响。第三，提出了湍流火焰传播和熄灭机制来解释这种现象。

项目成果

Turbulent flame propagation limits of polymethylmethacrylate particle cloud-ammonia-air co-combustion

聚甲基丙烯酸甲酯颗粒云-氨-空气共燃烧的湍流火焰传播极限

• DOI: 10.1016/j.proci.2022.08.098
• 发表时间: 2023
• 期刊: Proceedings of the Combustion Institute
• 影响因子: 3.4
• 作者: Xia Yu;Hashimoto Nozomu;Fujita Osamu
• 通讯作者: Fujita Osamu

Experimental study on particle size effect on turbulent flame propagation of solid particle cloud/ammonia co-combustion

固体颗粒云/氨混燃湍流火焰传播的粒径效应实验研究

• 发表时间: 2022
• 作者: Yu Xia;Nozomu Hashimoto;Osamu Fujita
• 通讯作者: Osamu Fujita