INFLUENCE OF PILOT INJECTION ON COMBUSTION CHARACTERISTICS AND EMISSIONS IN A DI DIESEL ENGINE FUELED WITH DIESEL AND DME

JEONG, J. H.; JUNG, D. W.; LIM, O. T.; PYO, Y. D.; LEE, Y. J.

doi:2014.15.6.861

International Journal of Automotive Technology > Volume 15(6); 2014 > Article

Engine, Emission Technology

International Journal of Automotive Technology 2014;15(6): 861-869.
doi: https://doi.org/10.1007/s12239-014-0090-y

INFLUENCE OF PILOT INJECTION ON COMBUSTION CHARACTERISTICS AND EMISSIONS IN A DI DIESEL ENGINE FUELED WITH DIESEL AND DME

J. H. JEONG¹, D. W. JUNG¹, O. T. LIM¹, Y. D. PYO², Y. J. LEE²

¹University of ulsan
²Korea Institute of Energy Research

ABSTRACT

This work experimentally investigates how the dwell time between pilot injection and main injection influences combustion and emissions characteristics (NOx, CO, THC and smoke) in a single-cylinder DI diesel engine. The experiments were conducted using two fuel injection systems according to the fuel type, diesel or dimethyl ether (DME), due to the different fuel characteristics. The injection strategy is accomplished by varying the dwell time (10

Key Words: Diesel−dimethyl ether fuel blends, Emission characteristics, Spray characteristics