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Effects of ethyl tert-butyl ether addition to diesel fuel on characteristics of combustion and exhaust emissions of diesel engines

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Title: Effects of ethyl tert-butyl ether addition to diesel fuel on characteristics of combustion and exhaust emissions of diesel engines
Authors: Li, Tie Browse this author
Suzuki, Masaru Browse this author
Ogawa, Hideyuki Browse this author
Keywords: Diesel fuel
Additives
Diesel combustion
Exhaust emissions
Exhaust gas recirculation
Issue Date: Oct-2009
Publisher: Elsevier Ltd.
Journal Title: Fuel
Volume: 88
Issue: 10
Start Page: 2017
End Page: 2024
Publisher DOI: 10.1016/j.fuel.2009.02.041
Abstract: The effects of ethyl tert-butyl ether (ETBE) addition to diesel fuel on the characteristics of combustion and exhaust emissions of a common rail direct injection diesel engine with high rates of cooled exhaust gas recirculation (EGR) were investigated. Test fuels were prepared by blending 0, 10, 20, 30 and 40 vol% ETBE to a commercial diesel fuel. Increasing ETBE fraction in the fuel helps to suppress the smoke emission increasing with EGR, but a too high fraction of ETBE leads to misfiring at higher EGR rates. While the combustion noise and NOx emissions increase with increases in ETBE fraction at relatively low EGR rates, they can be suppressed to low levels by increasing EGR. Though there are no significant increases in THC and CO emissions due to ETBE addition to diesel fuel in a wide range of EGR rates, the ETBE blended fuel results in higher aldehyde emissions than the pure diesel fuel at relatively low EGR rates. With the 30% ETBE blended fuel, the operating load range of smokeless, ultra-low NOx (<0.5 g/kWi・h), and efficient diesel combustion with high rates of cooled EGR is extended to higher loads than with the pure diesel fuel.
Type: article (author version)
URI: http://hdl.handle.net/2115/38903
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 李 鉄

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