• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Heat and Mass Transfer >Three-dimensional modeling of utility boiler pulverized coal tangentially fired furnace
【24h】

Three-dimensional modeling of utility boiler pulverized coal tangentially fired furnace

机译：电站锅炉煤粉切圆燃烧炉的三维建模

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents selected results of numerical simulations of processes in utility boiler pulverized coal tangentially fired dry-bottom furnace. The simulations have been performed by specially developed comprehensive mathematical model. The main features of the model are a three-dimensional geometry, k-ε gas turbulence model, Eulerian-Lagrangian approach, particles-to-turbulence interaction, diffusion model of particle dispersion, six-flux method for radiation modeling and pulverized coal combustion model based on the global particle kinetics and experimentally obtained kinetic parameters. Five operation regimes of 210 MW_e boiler furnace burning Serbian lignites, with different grinding fineness of coal and coal quality, have been simulated. The model successfully predicts the influence of the parameters on the furnace processes and operation characteristics (like the flue gas temperature and the furnace walls radiation fluxes). The predicted flame temperature and percentage combustibles in bottom ash are in good agreement with the measurements. The developed model can find different applications, both in research and practice.
机译：本文介绍了实用锅炉粉煤切向燃烧干底炉过程数值模拟的部分结果。通过专门开发的综合数学模型进行了仿真。该模型的主要特征是三维几何，k-ε气体湍流模型，欧拉-拉格朗日方法，颗粒与湍流的相互作用，颗粒扩散的扩散模型，用于辐射建模的六通量方法和煤粉燃烧模型基于整体粒子动力学和实验获得的动力学参数。模拟了煤粉磨细度和煤质不同的塞尔维亚塞尔维亚褐煤210 MW_e锅炉炉的五个运行方案。该模型成功预测了参数对炉子工艺和运行特性（如烟气温度和炉壁辐射通量）的影响。预测的火焰温度和底灰中的可燃物百分比与测量结果非常吻合。开发的模型可以在研究和实践中找到不同的应用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号