| 基于热阻的燃煤锅炉辐射传热的合理预示 |
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| 引用本文： | 徐明厚,He Xiu-guang,Azevedo J.L.T,韩军,毛军,姚成军.基于热阻的燃煤锅炉辐射传热的合理预示[J].中国电机工程学报,2002,22(7):18-23,28. |
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| 作者姓名： | 徐明厚 He Xiu-guang Azevedo J.L.T 韩军 毛军 姚成军 |
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| 作者单位： | 1. 华中科技大学煤燃烧国家重点实验室,湖北,武汉430074
2. Instituto Superior Técnico, Av.Rovisco Pais, 1049-001 Lisbon, Portugal |
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| 摘 要： | 积灰，结渣对电站锅炉内传热过程的影响的合理评估无论对锅炉的设计，还是运行都是相当重要的，该文通过引入热阻为代表锅炉壁面的积灰结渣从而合理描述这种影响，文中采用实际燃煤电厂热流计实测数据与三维计算流体动力学数值模拟的结果对上述方法进行了检验，数值预示结果与电厂数据的比较表明该方法完全能满足工程精度的需要。
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| 关 键 词： | 热阻 燃煤锅炉 辐射传热 积灰结渣 数值模拟 |
EFFECTIVE PREDICTING RADIATIVE HEAT TRANSFER IN COAL FIRED BOILERS BY INTRODUCING HEAT TRANSFER RESISTANCE |
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| He Xiu-guang,Azevedo J.L.T.EFFECTIVE PREDICTING RADIATIVE HEAT TRANSFER IN COAL FIRED BOILERS BY INTRODUCING HEAT TRANSFER RESISTANCE[J].Proceedings of the CSEE,2002,22(7):18-23,28. |
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| Authors: | He Xiu-guang Azevedo JLT |
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| Abstract: | The assessment of the influence of fouling and slagging on the heat transfer in utility boilers is obtained significant interest both during boiler design and operation. This paper presents a strategy to investigate this influence by introducing heat resistance to represent fouling and slagging on furnace walls. The evaluation of this strategy was performed using the plant heat flux reading data together with a 3-D Computational Fluid Dynamics (CFD) code. The comparison of the prediction results with tested data is encouraging and shows that this strategy can satisfy engineering need. |
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| Keywords: | coal fired boiler fouling and slagging mathematical modeling |
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