Numerical study of hydrogen peroxide enhancement of ammonia premixed flames

研究成果: Article同行評審

20 引文 斯高帕斯(Scopus)


NH3 is considered a promising alternative for hydrocarbon-based fuels. However, NH3/air combustion has many challenges, including a high ignition temperature and low flame speed. Hydrogen peroxide can be used to overcome these defects. The effects of hydrogen peroxide on the NH3/air premixed flames are numerically investigated using a detailed chemical mechanism. When using hydrogen peroxide to replace partial air, the laminar burning velocity and adiabatic flame temperature are substantially increased. For higher replacement of hydrogen peroxide, the laminar burning velocity is dominated by hydrogen peroxide reactions related to OH. In addition, addition of hydrogen peroxide increases the species concentration and enhances reaction rates. The dominant reactions for species reaction rates are shifted, especially for OH and H2O. H2O is mainly formed from the reaction of hydrogen peroxide attacked with radical OH after the amount of added hydrogen peroxide exceeds 40%. As for NO emissions, it also increases due to the presence of NH3 and the higher flame temperature. Since hydrogen peroxide can substantially increase the combustion speed of NH3, thereby extending the flammability limit, it is feasible to control NO emissions by adjusting the replacement percentage of hydrogen peroxide and operating at a lower equivalence ratio.

出版狀態Published - 2020 10月 15

All Science Journal Classification (ASJC) codes

  • 土木與結構工程
  • 建築與營造
  • 建模與模擬
  • 可再生能源、永續發展與環境
  • 燃料技術
  • 能源工程與電力技術
  • 污染
  • 能源(全部)
  • 機械工業
  • 工業與製造工程
  • 管理、監督、政策法律
  • 電氣與電子工程


深入研究「Numerical study of hydrogen peroxide enhancement of ammonia premixed flames」主題。共同形成了獨特的指紋。