...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Heat Transfer Engineering >Numerical Study on Nitric Oxide Production of Moderate or Intense Low-Oxygen Dilution Combustion Using Ammonia and City Gas
【24h】

Numerical Study on Nitric Oxide Production of Moderate or Intense Low-Oxygen Dilution Combustion Using Ammonia and City Gas

机译：氨和城市气体中适度或强阳性低氧稀释燃烧的一氧化氮产生的数值研究

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

Ammonia (NH_3) is attracting attention as a carbon-free fuel that does not emit carbon dioxide, but there is concern that a large amount of nitrogen oxides is emitted during its combustion. The mixtures of NH_3 and city gas are used as fuels, and the effectiveness of Moderate or Intense Low-oxygen Dilution (MILD) combustion to reduce nitric oxide (NO) emissions is investigated through zero-dimensional and three-dimensional numerical simulations for various NH_3 concentrations of the fuels at the lower heating value basis, E_(NH3). The zero-dimensional numerical simulations show that NO emissions reach their maximum value for E_(NH3) = 20-40%, and that dilution of the fuel and oxidizer by exhaust gas recirculation reduces NO emissions. On the other hand, the three-dimensional numerical simulations of an actual furnace show that MILD combustion is valid for reducing NO emissions for E_(NH3) = 0%, 20% and 100%. For burner design, the nozzle diameters used for the oxidizer, D, and the distance between the fuel and the oxidizer nozzles, L, are important parameters. For E_(NH3) = 20%, a 0.39-fold reduction in D and a 2.5-fold increase in L make the NO emissions 56% and 74%, respectively.
机译：氨（NH_3）作为不发射二氧化碳的无碳燃料吸引注意力，但是担心在其燃烧过程中发出大量的氮氧化物。 NH_3和城市气体的混合物用作燃料，通过各种NH_3的零维数值模拟研究了中度或强烈低氧稀释（MILD）稀释（轻度）燃烧（不含）排放的有效性燃料浓度在较低的加热值下，E_（NH3）。零维数值模拟表明，没有排放达到其最大值的E_（NH3）= 20-40％，并且通过废气再循环稀释燃料和氧化剂可减少排放。另一方面，实际炉的三维数值模拟表明，温和的燃烧是有效的，用于减少E_（NH3）= 0％，20％和100％的排放。对于燃烧器设计，用于氧化剂，D和燃料和氧化剂喷嘴的距离的喷嘴直径是重要的参数。对于E_（NH3）= 20％，D分别为0.39倍的D和2.5倍的增加，分别产生56％和74％。

著录项

  • 来源
    《Heat Transfer Engineering》 |2021年第14期|1223-1236|共14页
  • 作者

    Takafumi Honzawa; Makihito Nishioka; Ryoichi Kurose;

  • 作者单位

    Department of Mechanical Engineering and Science Kyoto University Kyoto Japan Fundamental Technology Department Tokyo Gas Co. Ltd Yokohama Japan;

    Department of Engineering Mechanics and Energy University of Tsukuba Tsukuba Japan;

    Department of Mechanical Engineering and Science Kyoto University Kyoto Japan;

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

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