Natural gas engines - problems and challenges

• Autorzy: Kowalewicz A. , Wojtyniak M.
• Języki publikacji: EN

Abstrakty

EN

At former KONES one of the co-authors presented a paper, is which general information about natural gas properties, reserves, production and distribution were given and application to SI and CI engines was presented, compared and discussed. It was shown, that more promising is dual-fuel CI engine. There is a lot of information on combustion, emissions and performances of dual-fuel natural gas engines, but there are also blank areas and controversial opinions, which were pointed out and discussed in this paper. For example: why combustion processes are delayed in comparison with combustion of diesel fuel only. It is also not clear whether noise of dual-fuel engine is higher than that of diesel engine or lower (there are contradictory data). These problems are shown and discussed in this paper. The proposal of further research is presented. Ignition and combustion in dual-fuel natural gas engines is yet not fully recognized, especially: combustion duration, mechanism at gaseous and condensed phase burning, kinetics and diffusion controlled combustion, noise, knock and cycle-by-cycle variation. Optimization of control parameters on account of efficiency and emissions is still an open problem. Influence of natural gas composition and its changes on engine performance and emissions still demand estimation.

Słowa kluczowe

EN

combustion engine; natural gas; dual-fuel engine; combustion duration; knock

• 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: 2007
• Tom: Vol. 14, No. 2
• Strony: 273--282
• Opis fizyczny: Bibliogr. 17 poz., rys.

Twórcy

autor

Kowalewicz A.

autor

Wojtyniak M.

• Technical University of Radom Chrobrego 45, 26-600 Radom, Poland tel. [phone], fax [phone],

Bibliografia

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