Optical analysis of the gas flame development in a RCM using a high-power ignition system

• Autorzy: Fiedkiewicz Ł. , Pielecha I.

Identyfikatory

DOI

10.19206/CE-2018-208

• Języki publikacji: EN

Abstrakty

EN

The combustion process quality is determined by several factors: the composition of the fuel-air mixture in the vicinity of the spark plug and the discharge conditions on the spark plug. This article assesses a high-power ignition system using optical gas flame propagation analyzes. The tests were carried out in a rapid compression machine, using a fast camera for filming. The spark plug discharge quality assessment was determined indirectly by the flame propagation conditions after the ignition of the mixture (during methane combustion). The size of the flame surface and the rate of its change were assumed as a comparative criterion. It has been found that when using an ignition system with high discharge power the rate of flame development is 14% higher with respect to conventional ignition systems. In addition, the shorter development time of the early flame phase after discharge when using the new ignition system was confirmed. Based on the obtained test results and analyzes, modifications of engine operation settings were indicated, resulting from the use of a high discharge power system.

Słowa kluczowe

EN

spark ignition; plasma ignition; optical tests; combustion process diagnostics; ignition systems

PL

zapłon iskrowy; zapłon plazmowy; testy optyczne; diagnostyka procesu spalania; układy zapłonowe

• Wydawca: Polskie Towarzystwo Naukowe Silników Spalinowych
• Czasopismo: Combustion Engines
• Rocznik: 2018
• Tom: R. 57, nr 2
• Strony: 47--54
• Opis fizyczny: Bibliogr. 10 poz., wykr.

Twórcy

autor

Fiedkiewicz Ł.

• Faculty of Machines and Transport, Poznan University of Technology

autor

Pielecha I.

• Faculty of Machines and Transport, Poznan University of Technology

Bibliografia

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