Influence of oxygen concentration on combustion characteristics of hydrocarbon-air mixtures under high temperature and pressure

• Autorzy: Kanno A. , Kawakami T. , Sutkowski M. , Teodorczyk A.
• Języki publikacji: EN

Abstrakty

EN

The emission of NOx, SOx, HC and CO2 from internal combustion engines is still a major issue in the development of modern engines. Especially for new concepts, like EGR (Exhaust gas recirculation), developed, detailed information about the pollutant formation is required. However, the experiments of actual standard engines are generally very complicated processes including the residual gas from the last cycle and the flow in an engine cylinder. Thus, experimental data measured using actual engines become unreliable. To obtain the essential data on combustion of hydrocarbon-CO2-N2-O2 mixtures, the experiments have been performed under conditions of high temperature and pressure, which are achieved by a spark ignited opposed rapid compression machine. The main conclusions are as follows: (1) The maximum burning pressure decreases with decreasing oxygen concentration at same EGR ratio. (2) The total burning time decreases with decreasing the concentration of O2 in methane-COx-N2-O2 and propane-CO2-N2-O2 mixtures. (3) The reduction ratio of flame speed is relatively larger on the fuel rich side than that on the lean side. Numerical modeling was focused on the influence of EGR ratio on exhaust emission. Methane fuel was used in the modeling

Słowa kluczowe

EN

combustion characteristics; rapid compression machine; modeling; methane

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2006
• Tom: Vol. 13, No. 2
• Strony: 197--203
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Kanno A.

autor

Kawakami T.

autor

Sutkowski M.

autor

Teodorczyk A.

• Faculty of Engineering Hosei University, Kajino-cho, Koganei Tokyo 184-8584 Japan tel.: [phone], fax: [phone],

Bibliografia

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• [3] Williams P. A., H. Davy M. et al., Effects of injection timing on the exhaust emissions of a centrally injected four-valve, direct-injection, spark-ignition engine, SAE Paper 982700, (1998)
• [4] Brohmer A. M., Meyer J., Numerical simulation of gas exchange in two-stroke passenger car gasoline engine, SAE Paper 931904, (1993).
• [5] Kumar S., Chalko T. J., Watson H. C., Simulation of spark ignition engine combustion using lagrangian code, SAE Paper 931908, (1993).
• [6] Mahieu V. et al., EGR interface: modeling to experimental data comparison, SAE Paper, 982695, (1998).
• [7] Kawakami T., Okajima S., Iinuma K., Combustion characteristics of Hydrocarbon-Air Mixtures at High Temperature and Pressure Achieved by Spark-Ignited Rapid Compression Machine, Archivum Combustion, 6, pp.191-199, (1986), No.3/4.
• [8] Amsden, A.A., “KIVA-3: A KIVA Program with Block-Structured Mesh for Complex Geometries, LA-12503-MS, 1993.