| 煤种对NO_x生成影响的数值研究 |
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| 引用本文： | 刘建红,商福民.煤种对NO_x生成影响的数值研究[J].长春工程学院学报(自然科学版),2017,18(1). |
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| 作者姓名： | 刘建红 商福民 |
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| 作者单位： | 长春工程学院能源动力工程学院,长春,130012 |
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| 摘 要： | 燃煤过程产生的污染物对大气造成的影响越来越严重,控制NO_x排放是解决环境污染的重要研究方向。采用数值模拟方法,研究入口温度分别为1 526℃、1 626℃,不同煤种在炉膛内的燃烧过程,并对燃烧过程中生成的NO_x影响因素进行分析。结果表明:中挥发分煤(mv)燃烧生成的NO_x最多,低挥发分煤(lv)燃烧生成的NO_x最少;热力型NO_x的生成与温度有很直接的关系,其计算结果可为今后的工业性实验提供理论依据。
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| 关 键 词： | 煤粉燃烧 NOx形成机理 控制技术 数值模拟 |
The Numerical Study on Influence to NOx by Coal |
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| Abstract: | The atmospheric pollution caused by coal combustion is increasingly concerned,so the controlling NOx emissions is becoming a very important issue to resolve during the coal combustion process.In this paper,numerical simulation has been performed to investigate the NOxdischarge during different coals under different combustion temperatures of 1 526 ℃、1 626 ℃ respectively.The influencing factors to NOx formation have been analyzed and summarized.Simulation results show that:the middling-volatile coal (mv) combustion generates the most NOx;the low-volatile coal (lv) combustion generates the least NOx;the thermal NOx generation has a direct relationship with the temperature,and the algorithm results can provide a theoretical basis for future industrial experiment. |
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| Keywords: | coal combustion information mechanism of NOx discharge control measure numerical simulation |
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