• Aleksandr Petrovich Shaikin Togliatti State University
  • Pavel Valentinovich Ivashin Togliatti State University
  • Ildar Rinatovich Galiev Togliatti State University
  • Igor Nikolaevich Bobrovsky Togliatti State University
  • Aleksandr Dmitrievich Deryachev Togliatti State University
  • Andrey Yakovlevich Tverdokhlebov Togliatti State University
Keywords: hydrocarbon fuel, chemiionization, flame propagation characteristics, variable volume combustion chamber, combustion process, combustion phase, width of flame chemical reactions area, flame propagation velocity, ionization sensor


The paper covers the study of special aspects of the application of ionization sensors intended for determining the characteristics of flame propagation (flame propagation velocity and the width of chemical combustion reactions area) in the variable volume combustion chamber. The review of contemporary methods of study of the process of hydrocarbon fuel combustion in piston engines showed the perspectivity of ionization sensors application. On a single-cylinder engine, the authors experimentally obtained and studied the main parameters of fuel combustion using the specially developed ionization sensors designed for identifying the characteristics of flame propagation when changing temperature, pressure, turbulence, and the combustion chamber volume in a wide range within several milliseconds. The variance of ion current, flame propagation turbulent velocity and the width of combustion chemical reactions area are determined depending on the fuel-air mixture composition when changing its physical and chemical properties due to the addition of hydrogen. It is shown that the change in the flame propagation turbulent velocity when adding hydrogen is caused by the increase in its normal component, and the width of turbulent combustion area is linearly related to the ion current value and its variance reflects the intensity of chemical combustion reactions. It is identified that despite the change in the excess air factor, the hydrogen concentration in fuel, and the engine speed rate, the linear dependence of flame width on the flame propagation turbulent velocity in the second combustion phase remains: the velocity increase corresponds to the flame width narrowing.

Author Biographies

Aleksandr Petrovich Shaikin, Togliatti State University

Doctor of Sciences (Engineering), Professor, professor of Chair “Power Machines and Control Systems”

Pavel Valentinovich Ivashin, Togliatti State University

PhD (Engineering), Associate Professor, assistant professor of Chair “Power Machines and Control Systems”

Ildar Rinatovich Galiev, Togliatti State University

PhD (Engineering), assistant professor of Chair “Design and Operation of Cars”

Igor Nikolaevich Bobrovsky, Togliatti State University

PhD (Engineering), Deputy Director for Scientific and Methodological Work of the Institute of Chemistry and Environmental Engineering

Aleksandr Dmitrievich Deryachev, Togliatti State University

PhD (Engineering), Engineer of Chair “Power Machines and Control Systems”

Andrey Yakovlevich Tverdokhlebov, Togliatti State University

Engineer of Chair “Power Machines and Control Systems”


Li H., Gatts H. An Experimental Investigation on the Combustion Process of a Simulated Turbocharged SI Natural Gas Engine Operated on Stoichiometric Mixture. Journal of Engineering for Gas Turbines and Power, 2017, no. 9, pp. 35–42.

Basshuysen R.V. Internal Combustion Engine Handbook. New York, SAE International, 2016. 1130 p.

Verma G., Prasad R.K., Agarwal R.A. Experimental investigations of combustion, performance and emission characteristics of a hydrogen enriched natural gas fuelled prototype spark ignition engine. Fuel, 2016, vol. 178, pp. 209–217.

Pastor J., Olmeda P., Lewiski F. Methodology for Optical Engine Characterization by Means of the Combination of Experimental and Modeling Techniques. Applied Sciences, 2018, no. 8, pp. 2–17.

Gürbüz H. Experimental Evaluation of Combustion Parameters with Ion-Current Sensor Integrated to Fast Response Thermocouple in SI Engine. Journal of Energy Engineering, 2017, vol. 143, no. 2, p. 04016046.

Gao Z., Wu X., Gao H., Liu B. Investigation on characteristics of ionization current in a spark-ignition engine fueled with natural gas-hydrogen blends with BSS de-noising method. International journal of hydrogen energy, 2010, vol. 35, no. 23, pp. 12918–12929.

Calcote H. F., King I. Studies of ionization in flames by means of langmuir probes. Symposium (International) on Combustion, 1955, vol. 5, no. 1, pp. 423–434.

Stepanov E.M., Dyachkov B.G. Ionizatsiya v plameni i elektricheskom pole [Ionization in flame and electric field]. Moscow, Metallurgiya Publ., 1968. 312 p.

Butt R.H., Chen Y., Mack J.H. Improving ion current of sparkplug ion sensors in HCCI combustion using sodium, potassium, and cesium acetates: Experimental and numerical modeling. Proceedings of the Combustion Institute, 2015, no. 3, pp. 3107–3115.

Arcoumanis C., Kamimoto T., eds. Flow and Combustion in Reciprocating Engines. Springer, 2009. 427 p.

Yasnikov I.S., Ivashin P.V., Shaikin A.P. On the turbulent propagation of a flame in a closed volume. Technical Physics. The Russian Journal of Applied Physics, 2013, vol. 58, no. 11, pp. 1587–1591.

Shaikin A.P., Galiev, I.R. Use of Chemi-Ionization to Calculate Temperature of Hydrocarbon Flame. Technical Physics. The Russian Journal of Applied Physics, 2018, vol. 63, no. 4, pp. 612–614.

Shaikin A.P., Galiev I.R Relationship of flame propagation speed for methane–hydrogen fuel of the internal combustion engine with parameters combustion engine with parameters of ion current and hydrogen concentration. Russian Aeronautics, 2016, vol. 59, no. 2, pp. 249–253.

Shaykin A.P., Ivashin P.V., Galiev I.R., Deryachev A.D. Kharakteristiki rasprostraneniya plameni i ikh vliyanie na obrazovanie nesgorevshikh uglevodorodov i oksida azota v otrabotavshikh gazakh pri dobavke vodoroda v toplivno-vozdushnuyu smes’ energeticheskikh ustanovok s iskrovym zazhiganiem [Characteristics of flame propagation and their influence on the formation of unburned hydrocarbons and nitric oxide in the exhaust gases with the addition of hydrogen to the fuel-air mixture of spark-ignition power plants]. Samara, SNTs RAN Publ., 2016. 259 p.

Zhou J.X., Moreau B., Foucher F. Combustion, Performance and Emission Analysis of an Oxygen-Controlling Downsized SI Engine. Oil and Gas Science and Technology, 2016, vol. 71, no. 4, p. 49.

Morones A. Laminar and turbulent flame speeds for natural gas/hydrogen blends. Proceedings of ASME Turbo Expo 2014: Turbine Technical Conference and Exposition, 2014, vol. 4B, p. 108941.

Khudhair O., Shahad A.K. A Review of Laminar Burning Velocity and Flame Speed of Gases and Liquid Fuels. International Journal of Current Engineering and Technology, 2017, vol. 7, no. 1, pp. 183–197.

Halter F. Characterization of the effects of pressure and hydrogen concentration on laminar burning velocities of methane-hydrogen-air mixtures. Proceedings of the Combustion Institute, 2005, vol. 30, no. 1, pp. 201–208.

Barot M., Kolhar S., Tripathi A. Combustion modeling of S.I. engine for prediction of turbulent flame speed. International Journal of Engineering Research & Technology, 2013, vol. 2, no. 4, pp. 1465–1472.

Tripathi A.M., Panchal P., Chaudhari V. Turbulent flame speed prediction for S.I. engine using methane as fuel. International Journal of Engineering Research and Applications (IJERA), 2013, vol. 3, no. 4, pp. 248–254.

Technical Sciences