Determining selected diesel engine combustion descriptors based on the analysis of the coefficient of variation of in-chamber pressure

• Autorzy: Bąkowski A. , Radziszewski L.

Identyfikatory

DOI

10.1515/bpasts-2015-0052

• Języki publikacji: EN

Abstrakty

EN

This paper presents a method that uses the coefficient of variation (COV) of pressure in a diesel engine combustion chamber to determine the crank angle degree (CAD) for which the heat release rate (HRR) reaches the maximum value. The COV was proposed for determining the point corresponding to the angle of start of combustion (SoC). Regression models were fit with these descriptors for the engine powered by diesel, biodiesel or a combination of both, operating under full- or part- load conditions. The uncertainty parameter in these models was determined. Good agreement between the experimental results and the literature data shows the validity of the analysis.

Słowa kluczowe

EN

diesel engine; coefficient of variation; measurement uncertainty; heat release rate; start of combustion

PL

silnik Diesla; współczynnik zmienności; niepewność pomiaru; szybkość wydzielania ciepła; spalanie

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2015
• Tom: Vol. 63, nr 2
• Strony: 457--464
• Opis fizyczny: Bibliogr. 13 poz., rys., tab., wykr.

Twórcy

autor

Bąkowski A.

• Department of Mechatronics and Machine Design, Kielce University of Technology, 7 Tysiąclecia Państwa Polskiego Ave., 25-314 Kielce, Poland

autor

Radziszewski L.

• Department of Mechatronics and Machine Design, Kielce University of Technology, 7 Tysiąclecia Państwa Polskiego Ave., 25-314 Kielce, Poland

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