Effects of addition of ethanol and cetane number improver on combustion and emission characteristics of a compression ignition engine (PDF)
发布时间：2025-04-30
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- 发布时间：
- 2025-04-30
- 论文名称：
- Effects of addition of ethanol and cetane number improver on combustion and emission characteristics of a compression ignition engine (PDF)
- 发表刊物：
- J Automob Engineering
- 摘要：
- Combustion and emission characteristics of a direct-injection diesel engine fuelled
with diesel–ethanol blends were investigated. The results show that the ignition delay and the premixed combustion duration increase, while the diffusive combustion duration and the total
combustion duration decrease with increase in the oxygen mass fraction in the blends. The addition of 0.2 per cent volume fraction of cetane number improver (isoamyl nitrite) could mean that the ignition delay and the premixed combustion duration of the fuel blends with 10 vol% ethanol fraction recover to those of diesel fuel. Meanwhile, with the increase in the ethanol fraction in the fuel blends, the centre of the heat release curve moves closer to the top dead centre. The brake specific fuel consumption increases, while the diesel equivalent brake specific fuel consumption decreases with increase in the ethanol fraction. The exhaust smoke
concentration increases and exhaust nitrogen oxide (NOx) concentration decreases on prolonging the fuel delivery advance angle for both diesel fuel and the blended fuels. For a specific fuel injection advance angle, the exhaust smoke concentration shows a large decrease
and the exhaust NOx concentration a small decrease on ethanol addition.
- 合写作者：
- Ren Yi, Huang Zuohua, Li Wei
- 卷号：
- 2008, 222(6): 1077-1088
- 页面范围：
- 1077-1088
- 是否译文：
- 否
- 发表时间：
- 2008-06-14