| 受辐射加热的煤粉颗粒群着火模型 |
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| 引用本文： | 盛昌栋 袁建伟. 受辐射加热的煤粉颗粒群着火模型[J]. 燃烧科学与技术, 1996, 2(1): 38-45 |
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| 作者姓名： | 盛昌栋 袁建伟 |
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| 作者单位： | 华中理工大学 |
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| 摘 要： | 本文建立了仅受辐射加热的煤粉颗粒群着火的不稳态模型。通过数值模拟，研究了煤粉浓度与颗粒群的着火方式、着火时间和着火温度等的关系。
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| 关 键 词： | 煤粉 颗粒群 着火模型 辐射 加热 |
Ignition Model of Pulverized-Coal Cloud Heated by Radiation |
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| Sheng Changdong, Yuan Jianwei, Xu Minghou, Ma Yuyi. Ignition Model of Pulverized-Coal Cloud Heated by Radiation[J]. Journal of Combustion Science and Technology, 1996, 2(1): 38-45 |
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| Authors: | Sheng Changdong Yuan Jianwei Xu Minghou Ma Yuyi |
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| Affiliation: | Huazhong University of Science and Technology |
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| Abstract: | This paper presents an unsteady-state model on ignition of pulverized-coal cloud heated by radiation. Correlations of coal concentration with the ignition mode, ignition time and ignition temperature of the cloud are predicated by numerical modelling. The results are as follows. Ignrtion time is proportional to the reciprocal of coal concentration. Igniton mode of the cloud transits from homogeneous to heterogeneous when the coal concentration decreases. The critical concentration changes with the temperature of radiation source, particle diameter and volatile content, etc. |
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| Keywords: | Pulverized-Coal cloud Ignition model Coal concentration Radiation |
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