Numerical Analysis on Microscopic Characteristics of Pulverized Coal Moderate and Intense Low-Oxygen Dilution Combustion
Numerical Analysis on Microscopic Characteristics of Pulverized Coal Moderate and Intense Low-Oxygen Dilution Combustion
复制标题
煤粉中强低氧稀释燃烧微观特性数值分析
DOI：
10.1021/acs.energyfuels.5b00088
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发表时间：
2015-04
期刊：
影响因子：
5.3
通讯作者：
Yuegui Zhou
中科院分区：
文献类型：
--
作者：
Xudong Jin;Yuegui Zhou
中度、强烈低氧稀释（MILD）燃烧被认为是一种新的清洁燃烧方式，可以同时提高燃烧效率和减少NOx排放。对煤粉MILD燃烧进行计算流体动力学（CFD）建模，用两种湍流-化学相互作用模型模拟烟气速度、温度和物质浓度场，该模型得到了国际火焰研究基金会（IFRF）2号炉的实验数据的充分验证。 1.然后，定量分析了煤粉MILD燃烧的宏观和微观特征，强调了与传统火焰燃烧相比独特的MILD燃烧状态。具有四步全局反应的涡耗散概念（EDC）模型可以很好地再现煤粉MILD燃烧的湍流-化学相互作用行为。由于高动量二次空气的存在，炉内产生强烈的湍流混合和热烟气的夹带。
Moderate and intense low-oxygen dilution (MILD) combustion is regarded as a new clean combustion mode, which can simultaneously improve combustion efficiency and decease NOx emission. The computational fluid dynamics (CFD) modeling on pulverized coal MILD combustion was conducted to simulate the flue gas velocity, temperature and species concentration fields with two turbulence–chemistry interaction models, which were well-validated by the experimental data of International Flame Research Foundation (IFRF) furnace no. 1. Then, macro- and microscopic characteristics of pulverized coal MILD combustion were quantitatively analyzed to emphasize the unique MILD combustion regime compared to the conventional flame combustion. The eddy dissipation concept (EDC) model with a four-step global reaction can well reproduce turbulence–chemistry interaction behavior of pulverized coal MILD combustion. Strong turbulent mixing and entrainment of hot flue gases is found in the furnace because of high momentum secondary ai...
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DOI：
10.1016/s0082-0784(98)80183-5
发表时间：
1998
期刊：
--
影响因子：
--
作者：
T. Plessing;N. Peters;J. Wünning
通讯作者：
T. Plessing;N. Peters;J. Wünning
影响因子：
11.9
作者：
M. Katsuki;T. Hasegawa
通讯作者：
M. Katsuki;T. Hasegawa
影响因子：
5.3
作者：
Yuxin Wu;Philip J. Smith;Jiansheng Zhang;Jeremy N. Thornock;Guangxi Yue
通讯作者：
Yuxin Wu;Philip J. Smith;Jiansheng Zhang;Jeremy N. Thornock;Guangxi Yue
影响因子：
4.4
作者：
JONES, WP;LINDSTEDT, RP
通讯作者：
LINDSTEDT, RP
影响因子：
1.3
作者：
A. Mardani;S. Tabejamaat;Mohammadreza Mohammadi
通讯作者：
A. Mardani;S. Tabejamaat;Mohammadreza Mohammadi