| 燃煤锅炉燃烧过程与NOx排放的模型与数值计算 |
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| 引用本文： | 徐明厚,郑楚光,J.L.T.AZEVEDO,M.G.CARVALHO. 燃煤锅炉燃烧过程与NOx排放的模型与数值计算[J]. 工程热物理学报, 2001, 22(2): 249-252 |
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| 作者姓名： | 徐明厚 郑楚光 J.L.T.AZEVEDO M.G.CARVALHO |
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| 作者单位： | Huazhong University of Science and Technology,,Instituto Superior Tecnico,Av. Rovisco Pais, Lisboa, |
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| 基金项目： | 欧盟资助项目，华中理工大学校科研和教改项目，BRPR-CT96-0198，J121801，， |
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| 摘 要： | 本文以一台前墙布置有24只旋流燃烧器的350 MW燃煤电站锅炉为研究对象，对锅炉在100%、95%、85%、70%和50%额定负荷下的流动、燃烧和NOx排放进行了全炉膛数值模拟。模拟结果与锅炉运行和实测数据进行了全面比较并发现，除50%负荷外，其余工况两者符合情况良好。文中提出并采用了NOx模拟中相关的模型参数；对炉内空气量、炉温与NOx生成关系的计算结果表明, NOx的最终排放对温度的敏感性更强。
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| 关 键 词： | 煤燃烧 NOx排放 数值模拟 |
| 文章编号： | 0253-231X(2001)02-0249-04 |
| 修稿时间： | 2000-12-07 |
NUMERICAL SIMULATION OF THE PULVERISED COAL COMBUSTION AND NOx EMISSION IN A FRONT-WALL FIRED BOILER |
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| XU Ming-Hou,ZHENG Chu-guang,J.L.T.AZEVEDO,M.G.CARVALHO. NUMERICAL SIMULATION OF THE PULVERISED COAL COMBUSTION AND NOx EMISSION IN A FRONT-WALL FIRED BOILER[J]. Journal of Engineering Thermophysics, 2001, 22(2): 249-252 |
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| Authors: | XU Ming-Hou ZHENG Chu-guang J.L.T.AZEVEDO M.G.CARVALHO |
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| Abstract: | Numerical simulation of the flow, combustion process, and NOx emission in afront-wall coal fired boiler of 350MWe with 24 swirl burners is presented. Five different cases with 100%, 95%, 85%, 70% and 50% boiler full load aresimulated. The comparison between the simulation and the plant data shows agood agreement for all cases except the one of 50% boiler load. The calculatedresults illustrate that the NOx model used shows a higher sensitivity totemperature than to oxygen level in the furnace. |
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| Keywords: | coal combustion NOx emission numerical simulation |
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