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75t/h燃气锅炉炉内传热数学模型与数值模拟计算的研究
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作者 齐学军 宋文武 《江西能源》 2008年第3期15-18,25,共5页
文章计算辐射传热以区域假想面模型为基础,把炉膛沿烟气流动方向分区,以炉膛内最为复杂的燃烧器区域的燃烧与辐射传热过程为研究对象,建立炉内能量平衡方程,并求解出炉内燃烧的一维温度场,以及水冷壁的吸热量和热流密度。计算结果与三... 文章计算辐射传热以区域假想面模型为基础,把炉膛沿烟气流动方向分区,以炉膛内最为复杂的燃烧器区域的燃烧与辐射传热过程为研究对象,建立炉内能量平衡方程,并求解出炉内燃烧的一维温度场,以及水冷壁的吸热量和热流密度。计算结果与三维模型的实测数据非常一致。由于模型采用了一维简化处理,收敛结果较快,可以快速得到电站需要的数值。 展开更多
关键词 燃气锅炉 假想面模型 燃烧传热过程 数值模拟
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Mathematical Modeling of Heat Transfer Processes of Coal Waste Combustion in a Chamber of Automated Energy Generating Complex 被引量:1
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作者 Sergey P. Mochalov Sergey N. Kalashnikov +2 位作者 Pavel S. Mochalov Guolin Song Guoyi Tang 《Journal of Thermal Science》 SCIE EI CAS CSCD 2013年第2期174-179,共6页
The automated energy generating complex allows obtaining heat energy from waste coal-water slurry fuel (WCF) that is a mixture of fine coal particles from coal enrichment wastes with water. The mixture is blown into... The automated energy generating complex allows obtaining heat energy from waste coal-water slurry fuel (WCF) that is a mixture of fine coal particles from coal enrichment wastes with water. The mixture is blown into the swirl chamber under the pressure through the special sprayers. The received heat energy is used in different ways. One of the important issues is to estimate the heat losses through the walls of this chamber. In this paper we solved the boundary problem of mathematical physics to estimate the temperature fields in the walls of the swirl chamber. The obtained solution allows us to estimate the heat losses through the waUs of the swid chamber. The task of the mathematical physics has been solved by a numerical finite-difference method. The method for solving this prob- lem can be used in the calculation of temperature fields and evaluation of heat losses in other thermal power units. 展开更多
关键词 heat transfer heat conduction equation boundary conditions the heat transfer coefficient tempera-ture distribution.
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