首页> 外文期刊>Fuel >Combustion characteristics of a non-premixed methane flame in a generated burner under distributed combustion conditions: A numerical study
【24h】

Combustion characteristics of a non-premixed methane flame in a generated burner under distributed combustion conditions: A numerical study

机译:分布式燃烧条件下非预混甲烷火焰在燃烧器中的燃烧特性:数值研究

获取原文
获取原文并翻译 | 示例
       

摘要

Distributed combustion is a novel technique in providing of thermal field uniformity over the entire of the combustor and in reducing of pollutant emissions. This study concentrates on combustion characteristic of a non-premixed methane flame for the newly generated burner under conventional and distributed combustion conditions. The non-premixed methane flame has been modelled by using a computational fluid dynamics commerce code. In the modellings, standard k-epsilon turbulence model, the non-premixed modeling with and assumedshape that is beta-function Probability Density Function and P-1 radiation model have been used. The predicted temperature distributions have been compared with the experimental data under conventional combustion conditions and it has been determined that the predicted results are in good agreement with the measured temperature values. The predicted results show that distributed combustion enables more uniform thermal field under distributed combustion conditions in the combustor. In particular, it has been demonstrated that the temperature of the methane flame has been reduced significantly. When the effect of distributed combustion on pollutant emissions is evaluated, it has been concluded that NOX and CO emissions have been reduced down to nearly zero emissions while CO2 emission levels have been increased slightly at the combustor outlet under distributed combustion conditions.
机译:分布式燃烧是一种新颖的技术,可在整个燃烧器中提供均匀的热场并减少污染物排放。这项研究集中于在常规和分布式燃烧条件下,新型燃烧器的非预混甲烷火焰的燃烧特性。非预混合甲烷火焰已通过使用计算流体动力学商业代码建模。在建模中,使用了标准的k-ε湍流模型,β函数的概率密度函数和P-1辐射模型的非预混合模型,并采用了假定形状。已将预测温度分布与常规燃烧条件下的实验数据进行了比较,并确定了预测结果与测得的温度值高度吻合。预测结果表明,在燃烧室中的分布式燃烧条件下,分布式燃烧可实现更均匀的热场。特别地,已经证明甲烷火焰的温度已经显着降低。当评估分布式燃烧对污染物排放的影响时,得出的结论是,在分布式燃烧条件下,燃烧室出口的NOX和CO排放已减少至接近零排放,而CO2排放水平则有所增加。

著录项

  • 来源
    《Fuel》 |2018年第15期|163-171|共9页
  • 作者

    Karyeyen Serhat;

  • 作者单位

    Gazi Univ, Fac Technol, Dept Energy Syst Engn, TR-06500 Ankara, Turkey;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Distributed combustion; Methane; Burner; Modelling;

    机译:分布式燃烧甲烷燃烧器建模;

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