Burning velocity of methane-hydrogen mixtures at elevated pressures and temperatures |
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Authors: | K. Ya. Troshin A. A. Borisov A. N. Rakhmetov V. S. Arutyunov G. G. Politenkova |
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Affiliation: | 16657. Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow, Russia 26657. Moscow Institute of Fine Chemical Technology, Moscow, Russia
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Abstract: | 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. |
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