Influence of ignition timing advance on the CNG natural gas combustion in SI engine

• Autorzy: Flekiewicz M. , Kubica G. , Fabiś P.
• Języki publikacji: EN

Abstrakty

EN

A significant reduction of CO2 emission in the road transport is a major challenge for next years. In the combination with efficient powertrain technologies, the potential of natural gas is excellent for comparably light and cost effective reduction of CO2 and toxic emission in the future [1-2]. As the CNG fuelling stations in Poland are not so far widespread enough to make a dedicated natural gas vehicle practical, it results necessary to start with proposing alternatively CNG powered engines. Such a bi-fuel automotive engines are necessary to bridge the gap between petrol and natural gas. As a sample of modern engine design an Opel 1.6 litre 4-cylinder engine has been selected as a base of powertrain for development of bi-fuelpassenger car engine. The influence of ignition timing on CNG combustion process has been presented in this paper. A 1.6 litre SI engine has been tested in the special program. For selected engine operating conditions, following data were acquired: in cylinder pressure, crank angle, fuel mass consumption and exhaust gases temperatures. For the settings of 6, 9, 12 and 15 deg crank angle timing advance correction, the internal temperature of combustion chamber has been estimated, as well as the charge combustion ratio and ratio of heat release were tested. With the help of the mathematical model, emissions of NO, CO and CO2 were additionally estimated. Obtained results made it possible to compare the influence of ignition timing advance on natural gas combustion in SI engine.

Słowa kluczowe

EN

CNG passenger car engine; combustion analysis; ignition advance

• 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: 2008
• Tom: Vol. 15, No. 4
• Strony: 123--131
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Flekiewicz M.

autor

Kubica G.

autor

Fabiś P.

• Silesian University of Technology Krasińskiego Street, 8, 40-019 Katowice, Poland,

Bibliografia

• [1] Bach, C., Lammle, C, Bill, R., Soltic, P., Dyntar, D., Jammer, P., at al., Clean engine vehicle: a natural gas driven Euro-4/SULEV with 30% CO2 emission, SAE Paper 2004-01-0645, 2004.
• [2] Berner, H-J, Bargende, M., Ein CO2 - minimales Antriebskonzept auf Basis des Kraftstoffes Erdgas, Haus der Technik Fachbuch Band 37, Expert Verlag, Essen, 2004.
• [3] Heywood, J. B., Internal Combustion Engine Fundamentals, McGraw-Hill, London 1988.
• [4] Bargende, M., Schwerpunkt-kriterium und automatische klingelerkennung, Motor Technische Zeitschrift, Vol. 56(10), 1995.
• [5] Flekiewicz, M., Kubica, G., The practical verification of the mathematical model of gas engine powered by LPG, Proceedings of 8th European Automotive Congress, Bratislava 2001.
• [6] Mackowski, J., Wilk, K., The effect of the mixture and flame front initial temperature on theheat transfer between the zones in the CI engine, 12th International symposium in combustion process. Bielsko Biała, Poland 1991.
• [7] Flekiewicz, M., Kubica, G., Wilk, K., The Selected aspects of exhaust gases composition in gas engines, Proceedings of International Symposium Motauto’02, Russe 2002.
• [8] Flekiewicz, M., Kubica, G., Wilk, K., An Attempt of prediction of exhaust gases composition in SI engines alternatively powered by petrol and LPG, VIIth International Conference GAS ENGINE 2006.