| 제목 |
디젤엔진에서 디젤, GTL, 바이오디젤의 혼합유의 배기배출물 특성에 관한 실험적 연구 |
| 분야 |
엔진 및 연소 |
| 언어 |
Korean |
| 저자 |
이용규(한국기계연구원), 정동수(한국기계연구원), 문건필(과학기술연합대학원대학교) |
| Key Words |
Alternative diesel fuel(디젤대체연료), GTL(Gas to Liquid, 지티엘), Biodiesel(바이오디젤), Gaseous emissions(가스상 배출물), PM(Particulate Matters, 입자상 물질), Nucleation mode(핵형성 모드), Accumulation mode(축적모드) |
| 초록 |
An experimental study was carried out to investigate the emission characteristics for various alternative fuels in a 2.0 liter 4-cylinder turbo-charged diesel engine. The conventional diesel fuel, neat GTL (Gas to Liquid), blends of diesel and biodiesel(BD20), and blends of GTL and biodiesel(G+BD20 and G+BD40) were applied, and their emission characteristics were compared at various steady-state engine operating conditions. A noticeable reduction of exhaust emissions compared to conventional diesel fuel, except for NOx emission, was observed for G+BD40, where there is a maximum 30% averaged reduction for gaseous emissions (THC and CO) and 70% for PM mass concentrations. When comparing PM size distributions for biodiesel blended fuels, the PM number concentration in accumulation mode, where the diameter of PM is greater than 50 nm, decreased due to additional oxygen content in the biodiesel fuel; in nucleation mode, where the diameter of PM is less than 50nm, there was a slight increase or decrease in the PM number concentration depending on the amount of oxygen available in the combustion chamber. |
| 원문(PDF) |
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