Received 12.10.2022
Revised 17.02.2023
Accepted 30.03.2023
Retrieved from Vol. 27, No. 1, 2023
Pages 61 -66
Abstract
The article proposes a method to improve the emissions of a spark-ignition engine in full-load mode by using nitrous oxide additive to the air charge. The research object is the influence of the addition of nitrous oxide to the air charge on a spark ignition engine emission at constant fuel consumption under full load. The purpose of the study is a theoretical study of the improvement of the conditions for the effective operation of the catalytic converter at the stoichiometric composition of the mixture without deterioration of fuel efficiency and energy indicators. The results of calculation studies of the impact of the addition of oxygen-containing gas - nitrous oxide to the air charge on the emissions of the spark-ignition engine with an injection system, feedback and with or without catalytic converter are given. It is shown that the use of nitrous oxide additives can improve the emissions of a modern gasoline engine without decreasing of fuel economy and performance.
Keywords:
spark ignition engine; nitrous oxide; fuel-air mixture; excess air ratio; concentrations of pollutants; mass emissions of pollutants; environmental indicators; total concentrations of pollutantsHora, M.D. Polipshennia enerhetuchnykh pokaznykiv dvyhuna z iskrovym zapaliuvanniam v rezhymakh povnykh navantazhen [Improvement of the energy indicators of the engine with spark ignition in full loads modes] / M. D. Hora // Visnyk Natsionalnoho transportnoho universytetu. Seriia “Tekhnichni nauky”. - K., 2022. - Vyp. 53. - P. 104-109.
Harkusha Yu.V. Polipshennia enerhetychnykh pokaznykiv i palyvnoi ekonomichnosti benzynovoho dvyhuna v rezhymah povnykh navantazhen Dokt. Diss. [Improving the energy performance and fuel economy of a gasoline engine at full load. Doct. Diss.]. Kyiv, 2010. 146 p.
Dyadchenko V.L. Pokrashchennia palyvnoi ekonomichnosti bahatotsylindrovyh dvyhuniv z vporskuvannyam benzynu v rezhymah malyh navantazhen i holostoho hodu Dokt. Diss. [Improving the fuel economy of multi-cylinder engines with gasoline injection at low loads and idling. Doct. Diss.]. Kyiv, 2010. 172 p.
Ekolohiia ta avtomobilnyi transport: navchalnyi posibnyk [Ecology and road transport: study guide] / Yu.F. Hutarevych, D.V. Zerkalov, A.H. Hovorun, A.O. Korpach, L.P. Merzhyievska. – K.: Aristei, 2006. - 292 p.