Publications


Title이진우, 배충식, “대형 디젤 엔진에서 JP-8과 디젤 적용 시의 배기 배출물 특성에 대한 이해,” 대한기계학회 열공학부문 춘계학술대회, pp74-79, 2011, 5.

이진우, 배충식, “대형 디젤 엔진에서 JP-8과 디젤 적용 시의 배기 배출물 특성에 대한 이해,” 대한기계학회 열공학부문 춘계학술대회, pp74-79, 2011, 5.

Abstract

Combustion processes in an optically-accessible single-cylinder heavy-duty diesel engine equipped with a highpressure common-rail injection system were investigated for JP-8 and diesel. Direct imaging and two-color thermometry were employed to verify the emission trend for both fuels. The combustion process was characterized by image analysis with focus on luminosity. The results of two-color thermometry were analyzed on the basis of the flame temperature and KL factor distribution. Analysis of the combustion process by direct imaging showed that the ignition delay was longer for JP-8 than for diesel, while the flame was extinguished rapidly. Analysis of the flame luminosity showed that the combustion intensity was higher for diesel and that the flame lasted for a longer duration in this case. Two-color thermometry results showed that the high-temperature region extended over a large area during JP-8 combustion, implying the formation of a large amount of NOx. In addition, the KL factor showed low level over a large area and relatively homogeneous in the case of JP-8 combustion, which implied that less smoke was produced when using this fuel.

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