| O_2/CO_2燃烧方式下锅炉对流传热系数的修正算法和数值研究 |
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| 引用本文： | 米翠丽,阎维平,李皓宇,张广忱. O_2/CO_2燃烧方式下锅炉对流传热系数的修正算法和数值研究[J]. 动力工程, 2009, 29(5) |
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| 作者姓名： | 米翠丽 阎维平 李皓宇 张广忱 |
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| 作者单位： | 华北电力大学能源与动力工程学院,电站设备状态监测与控制教育部重点实验室,保定,071003 |
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| 基金项目： | 华北电力大学重大科研项目预研基金 |
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| 摘 要： | 采用热力计算与数值模拟相结合的方法,对富氧燃烧方式下锅炉对流受热面的传热特性进行研究,荻得了富氧气氛受热面对流传热系数的变化规律,由此提出了对流传热系数的修正算法.采用该算法,以某电厂300 MW锅炉为例,分别对空气燃烧方式和O2/CO2:燃烧方式下的各受热面进行了热力计算,并将计算结果与模拟结果进行了对比分析,结果两者相吻合,表明修正算法是可行的.分析结果还表明:富氧气氛下烟气的传热能力增强,即相同的受热面积传热量增加.
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| 关 键 词： | 电站锅炉 气氛 烟气传热 传热系数 修正算法 数值模拟 |
Modified Algorithm and Numerical Study of Boiler Convective Heat Transfer Coefficient Under O_2/CO_2 Combustion Mode |
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| MI Cui-li,YAN Wei-ping,LI Hao-yu,ZHANG Guang-chen. Modified Algorithm and Numerical Study of Boiler Convective Heat Transfer Coefficient Under O_2/CO_2 Combustion Mode[J]. Power Engineering, 2009, 29(5) |
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| Authors: | MI Cui-li YAN Wei-ping LI Hao-yu ZHANG Guang-chen |
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| Affiliation: | MOE's Key Lab of Condition Monitoring and Control of Power Plant Equipment;College of Energy and Power Engineering;North China Electric Power University;Baoding 071003;China |
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| Abstract: | Heat transfer characteristics of boiler convective heat-absorbing surface under oxygen-enriched combustion mode were studied by a combined method of thermal calculation and numerical simulation.The variation pattern of convective heat transfer coefficient of the heat-absorbing surface in oxygen-enriched atmosphere was obtained.Thus the modified algorithm for convective heat transfer coefficient was proposed.The algorithm was used for the thermal calculation of each heat-absorbing surface of a 300 MW boiler ... |
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| Keywords: | O2/CO2 |
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