디젤연소가능 청정연료(ULSD, Bio-Diesel, DME)엔진의 극미세입자 정량화 및 촉매 영향Characteristics of Nano-particle Emitted by Auto-ignited Engine with ULSD, Bio-diesel and DME Fuel and Effects of Oxidation Catalyst on Its Reduction

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In this experimental study, the effects of clean alternative fuels compatible with diesel combustion on nano-sized particle emission characteristics were investigated in a 0.5L auto-ignited single-cylinder engine with a compression ratio of 15. Because the number concentration of nano-sized particles emitted by automotive engine, that are suspected of being hazardous to human health and environment, might increase with engine fuel considerably and recently attracted attention. So a ultra-low sulfur diesel(ULSD), BD100(100% bio-diesel) and Di-Methyl Ether(DME) fuels used for this study. And, as a particle measuring instrument, a fast-response particle spectrometer (DMS 500) with heated sample line was used for continuous measurement of the particle size and number distribution in the size range of 5 to 1000nm (aerodynamic diameter). As this research results, we found that this measurements involving the large proportion of particles under size order of 300nm and number concentration of 4×109 allowed a single or bi-modal distribution to be found at different engine load conditions. Also the influence of oxygen content in fuel and the catalyst could be a dominant factor in controlling the nano-sized particle emissions in auto-ignited engine.
Publisher
한국자동차공학회
Issue Date
2009-05
Language
Korean
Citation

한국자동차공학회 논문집, v.17, no.3, pp.81 - 89

ISSN
1225-6382
URI
http://hdl.handle.net/10203/16017
Appears in Collection
ME-Journal Papers(저널논문)
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