Burning velocity of methane-hydrogen mixtures at elevated pressures and temperatures

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• 作者：K. Ya. Troshin (16657)
  A. A. Borisov (16657)
  A. N. Rakhmetov (26657)
  V. S. Arutyunov (16657)
  G. G. Politenkova (16657)
  
• 关键词：laminar burning velocity ; flammability concentration limits ; methane ; hydrogen ; air mixtures
• 刊名：Russian Journal of Physical Chemistry B, Focus on Physics
• 出版年：2013
• 出版时间：May 2013
• 年：2013
• 卷：7
• 期：3
• 页码：290-301
• 全文大小：442KB
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• 作者单位：K. Ya. Troshin (16657)
  A. A. Borisov (16657)
  A. N. Rakhmetov (26657)
  V. S. Arutyunov (16657)
  G. G. Politenkova (16657)
  
  16657. Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow, Russia
  26657. Moscow Institute of Fine Chemical Technology, Moscow, Russia
  

文摘

The effect of the initial pressure, temperature, and equivalence ratio on a number of combustion characteristics of methane-air mixtures with hydrogen additives in a closed vessel is experimentally studied. Experiments are conducted at 1, 5, and 10 atm and temperatures from 22 to 300°C. The hydrogen content in the fuel is 0, 10, and 20 vol %. The fuel equivalence ratio varies from 0.6 to 1.0. The limitations imposed by buoyancy on measurements of the laminar burning velocity by the constant-volume bomb method with recording of pressure-time histories are analyzed. It is shown that the laminar burning velocity can be appreciably increased by adding no less than 20 vol % of hydrogen to the fuel.