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http://dx.doi.org/10.3795/KSME-B.2010.34.12.1121

Effects of Aromatics and T90 Temperature of Low Cetane Number Fuels on Exhaust Emissions in Low-Temperature Diesel Combustion  

Han, Man-Bae (Dept. of Mechanical and Automotive Engineering, Keimyung Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.34, no.12, 2010 , pp. 1121-1126 More about this Journal
Abstract
This study is to investigate the effects of aromatics and T90 for low cetane number (CN) fuels on combustion and exhaust emissions in low-temperature diesel combustion. We use a 1.9-L common rail direct injection diesel engine at 1500 rpm and 2.6 bar BMEP. Low temperature diesel combustion was achieved via a high external EGR rate and strategic injection control. The tested fuels four sets: the aromatic content was 20% (A20) or 45% (A45) and the T90 temperature was $270^{\circ}C$ (T270) or $340^{\circ}C$ (T340) with CN 30. Given the engine operating conditions, the T90 was the stronger factor on the ignition delay time, resulting in a longer ignition delay time for higher T90 fuels. All the fuels produced nearly zero PM because of the extension of the ignition delay time induced by the low cetane number. The aromatic content was the main factor that affected the NOx and the NOx increased with the aromatic content.
Keywords
Low Temperature Diesel Combustion; Cetane Number; Aromatics; Temperature of Distillation Recovery; Mass Fraction Burned;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By SCOPUS : 1
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