| O2／CO2燃烧产物辐射换热系数计算方法及影响因素分析 |
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| 引用本文： | 薛宪阔,刘彦丰.O2／CO2燃烧产物辐射换热系数计算方法及影响因素分析[J].广东电力,2008,21(12):32-34. |
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| 作者姓名： | 薛宪阔 刘彦丰 |
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| 作者单位： | 华北电力大学,能源与动力工程学院,河北,保定,071003 |
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| 摘 要： | O2／CO2燃烧技术与常规空气燃烧技术相比，其燃烧产物的成分和辐射传热特性存在较大差异，其辐射传热特性也发生很大变化，常规辐射换热系数计算不再适用于O2／CO2燃烧计算。为此，综合纯试验法和光谱法建立了更适合O2／CO2燃烧时的辐射计算模型，以满足O2／CO2燃烧锅炉设计的需要，并将该模型应用于实践，分析辐射换热系数影响因素及其影响大小。结果表明：对辐射换热系数影响最大的是烟气中水蒸气含量的变化，CO2含量、压力和辐射层厚度的变化对其影响不大。
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| 关 键 词： | O2/CO2燃烧 辐射换热 光谱法 计算模型 |
Analysis of Radiative Heat Transfer Coefficient Calculation and Influencing Factors of Oxy-fuel Combustion Productions |
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| XUE Xian-kuo,LIU Yan-feng.Analysis of Radiative Heat Transfer Coefficient Calculation and Influencing Factors of Oxy-fuel Combustion Productions[J].Guangdong Electric Power,2008,21(12):32-34. |
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| Authors: | XUE Xian-kuo LIU Yan-feng |
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| Affiliation: | XUE Xian-kuo,LIU Yan-feng(School of Energy & Power Engineering,North China Electric Power Univ.,Baoding,Hebei 071003,China) |
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| Abstract: | The composition and radiative heat transfer properties of oxy-fuel combustion products are much different from those of conventional air-based combustion;common computational method of radiative heat transfer coefficient is no longer fit for the oxy-fuel combustion.Therefore,a radiation computation model is established by integrating the net test method and the spectral method,which is more suitable for oxy-fuel combustion and can meet the needs of boiler design.The model is put into practice to analyze the... |
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| Keywords: | oxy-fuel combustion radiative heat transfer spectral method computational model |
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