Possibility of the charge exchange work diminishing of an internal combustion engine in part load

• Autorzy: Postrzednik S. , Żmudka Z.
• Języki publikacji: EN

Abstrakty

EN

Internal combustion engines, used for driving of different cars, occur not only at the full load, but mostly at the part load. The relative load exchange work at the full (nominal) engine load is significant low. At the part load of the IC engine his energy efficiency r)e is significantly lower than in the optimal (nominal field) range of the performance parameters. One of the numerous reasons of this effect is regular growing of the relative load exchange work of the IC engine. The load exchange work of IC engine essentially determines the effective engine efficiency. It is directly connected with the quantitative regulation method common used in the IC engines. From the thermodynamic point of view - the main reason of this effect is the throttling process (causing exergy losses) occurring in the inlet and outlet channels. The known proposals for solving of this problem are based on applying of the fully electronic control of the motion of inlet, outlet valves and new reference cycles. The independent actuating (steerage) procedures of the ICE inlet valves should assure the adequate mass of the fresh charge, while procedures of the outlet valves are focused on the optimal exhaust gas recirculation rate, according to the engine load. The idea presented in the paper leads to diminishing the charge exchange work of the IC engines. The mentioned above problem can be solved using presented in the paper a new concept of the reference cycle (called as eco-cycle) of IC engine.

Słowa kluczowe

EN

engine efficiency; charge exchange work; engine load; valve actuating; thermodynamic cycle

• 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: 2011
• Tom: Vol. 18, No. 4
• Strony: 377--387
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Postrzednik S.

autor

Żmudka Z.

• Silesian University of Technology Institute of Thermal Technology Konarskiego Street 22, 44-100 Gliwice, Poland tel.: [phone], fax: [phone],

Bibliografia

• [1] Benson, R. S., Horlok, J. H., Winterbone, D. E., The thermodynamics and gas dynamics of internal combustion engines, Oxford University Press, 1982.
• [2] Ferguson, C. R., Internal Combustion Engines, Applied Thermosciences, John Wiley, 1986.
• [3] Grohe, H., Otto- und Dieselmotoren, Vogel Verlag, Würzburg, 1982.
• [4] Postrzednik, S., Zmudka, Z., Advanced Thermodynamic Cycle of Internal Eco-Engine, Proceedings of the 28th International Symposium on Combustion, Edinburgh, Scotland 2000.
• [5] Postrzednik, S., Zmudka, Z., Basic procedures of independent ICE valves steerage, Journal of KONES, Vol. 13, No. 3, Warsaw 2006.
• [6] Postrzednik, S., Zmudka, Z., Basic aspects and main procedures of independent IC engine valves actuation, Proceedings of the International Congress on Combustion Engines, Krakow 2007.