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http://dx.doi.org/10.3795/KSME-B.2014.38.6.501

Combustion and Emission Characteristics of High-Compression-Ratio Diesel Engine Fueled with Bio Oil-Ethanol Blended Fuel  

Kim, Tae Young (Engine Research Team, Korea Institute of Machinery and Materials,)
Lee, Seok Hwan (Engine Research Team, Korea Institute of Machinery and Materials,)
Jang, Young Woon (Engine Research Team, Korea Institute of Machinery and Materials,)
Kim, Ho Seung (Dept. of Mechanical Engineering, Gachon Univ.)
Kang, Kern Yong (Engine Research Team, Korea Institute of Machinery and Materials,)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.38, no.6, 2014 , pp. 501-511 More about this Journal
Abstract
Bio-oil derived from biomass through fast pyrolysis process has the potential to displace a significant amount of petroleum fuels. However, the use of bio-oil in a diesel engine is very limited because of its poor properties, e.g., its low energy density, low cetane number, and high viscosity. Therefore, bio-oil should be emulsified or blended with other fuels that have high centane numbers. Because bio-oil has poor miscibility with petroleum fuels, the most suitable candidate fuels for direct mixing are alcohol fuels. In this study, bio-oil was blended with ethanol, and two types of cetane improvers were added to a blended fuel to improve the self-ignition property. The two types of cetane improvers, PEG 400 and 2-EHN, made it possible for bio-oil blended fuels to combust in a diesel engine with a maximum bio-oil content of 15 wt%. A high-compression-ratio piston is also proposed for the combustion of bio-oil in a diesel engine.
Keywords
Fast Pyrolysis; Bio Oil; Biomass; Diesel Engine; High Compression Ratio; Ethanol;
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Times Cited By KSCI : 2  (Citation Analysis)
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