Combustion of lean hydrogen-based mixtures in spark ignition engine

The paper presents results of experimental and numerical study of combustion of lean hydrogen-based mixtures in spark-ignition engine. Hydrogen and hydrogen (90% vol.) – methane (10%) mixtures at 1,4–3,0 air-to-fuel equivalence ratio were used as fuels. Backfire was observed experimentally in the engine running on the hydrogen-air mixture at 1,4 equivalence ratio. On the basis of experimental indicator diagrams general engine operating parameters were determined. Indicated efficiency of hydrogen-air mixtures was equal to 30– 32%. Maximum indicated efficiency, 37%, was obtained for mixtures with methane addition and with the use of earlier spark timing. The dependence of efficiency on equivalence ratio was found to be weak. Two-dimensional numerical modelling of mixtures dynamics and combustion performed according to conditions of experiments confirmed general qualitative dependencies found experimentally. Sufficient incomplete combustion of hydrogen, up to 60%, was found in case of engine running on hydrogen with air-to-fuel equivalence ratio 3,0.

Keywords

hydrogen, methane, spark-ignition engine, indicator diagram, lean mixtures, experiment, numerical modelling

Received

27.11.2018

Publication date

04.12.2018

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GOST	Smygalina A., Tsyplakov A., Kiverin A., Zaichenko V. Combustion of lean hydrogen-based mixtures in spark ignition engine // Izvestiia Rossiiskoi akademii nauk. Energetika – 2018. – Issue 4 C. 87-99 [Electronic resource]. URL: http://ras.jes.su/energetika/s207987840001565-0-1-en (circulation date: 19.04.2024). DOI: 10.31857/S000233100002367-7
MLA	Smygalina, A.E, Tsyplakov, A.I, Kiverin, A.D, Zaichenko, V.M "Combustion of lean hydrogen-based mixtures in spark ignition engine." Izvestiia Rossiiskoi akademii nauk. Energetika 4 (2018):87-99. DOI: 10.31857/S000233100002367-7
APA	Smygalina A., Tsyplakov A., Kiverin A., Zaichenko V. (2018). Combustion of lean hydrogen-based mixtures in spark ignition engine. Izvestiia Rossiiskoi akademii nauk. Energetika (4), pp.87-99 DOI: 10.31857/S000233100002367-7

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