Study of the effect of ignition crank angle and mixture composition on the performance of a spark-ignition engine fueled with ethanol

• Autorzy: Jakliński Piotr , Czarnigowski Jacek , Ścisłowski Karol

Identyfikatory

DOI

10.19206/CE-174888

• Języki publikacji: EN

Abstrakty

EN

The publication presents the results of the measurements of the operating parameters of a spark-ignition engine fueled with 95-octane unleaded gasoline (ES95) and ethyl alcohol, approx. 92%. The measurements were carried out at a constant load: an engine speed of 1500 rpm and a constant pressure in the intake system - MAP = 0.45 bar. For each type of fuel, the measurements were carried out in two series for two variables. The ignition crank angle was varied in the range of 0˚÷40˚ and the mixture composition λ in the range of 0.85-1.25. The recorded engine performance parameters included torque, intake manifold pressure, intake air temperature, exhaust gas temperature and temporal fuel consumption; and exhaust gas composition was examined in terms of carbon monoxide, hydrocarbons and nitrogen oxides. The study showed that an ethanol-fueled engine has lower average efficiency compared to a gasoline one. The highest efficiency for ethanol was obtained for rich mixtures in the range λ = 0.85-1.0 and at high ignition advance angles. The use of alcohol fuel showed a very favorable effect on the composition of exhaust gas and a significantly lower content of harmful exhaust components was demonstrated. For the same operating points, carbon monoxide content was reduced by an average of 15%, and hydrocarbons and nitrogen oxides by an average of 80%.

Słowa kluczowe

EN

ethanol; alternative fuels; alcohol fuels; emissions; biofuels

PL

etanol; paliwa alternatywne; paliwa alkoholowe; emisje; biopaliwa

• Wydawca: Polskie Towarzystwo Naukowe Silników Spalinowych
• Czasopismo: Combustion Engines
• Rocznik: 2024
• Tom: R. 63, nr 2
• Strony: 56--63
• Opis fizyczny: Bibliogr. 33 poz., fot. kolor., wykr.

Twórcy

autor

Jakliński Piotr

• Faculty of Mechanical Engineering, Lublin University of Technology, Poland

• https://orcid.org/0000-0002-5575-7014

autor

Czarnigowski Jacek

• Faculty of Mechanical Engineering, Lublin University of Technology, Poland

• https://orcid.org/0000-0003-3882-1800

autor

Ścisłowski Karol

• Faculty of Mechanical Engineering, Lublin University of Technology, Poland

• https://orcid.org/0000-0003-0337-5863

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