Effect of dimethoxy methane and exhaust gas recirculation on combustion and emission characteristics of a direct injection diesel engine (PDF)
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Effect of dimethoxy methane and exhaust gas recirculation on combustion and emission characteristics of a direct injection diesel engine (PDF)
- 发表刊物：
- Fuel
- 摘要：
- The effect of fuel constituents and exhaust gas recirculation (EGR) on combustion characteristics, fuel efficiency and emissions of a direct injection diesel engine fueled with diesel-dimethoxymethane (DMM) blends was investigated experimentally. Three diesel-DMM blended fuels containing 20%, 30% and 50% by volume fraction of DMM, corresponding to 8.5%, 12.7% and 21.1% by mass of oxygen in the blends, were used. By the use of DMM, it is observed that CO and smoke emissions as well as the total number and mass concentration of particulate reduce significantly, while HC emissions and particulate number with lower geometric mean diameters (Di < 0.039 μm) increase slightly. For each fuel, there is an increase of ignition delay whereas a decrease of cylinder pressure and heat release rate in the premixed combustion phase when the diesel engine was operated with EGR system. The brake thermal efficiency fluctuates at small EGR ratio, while decreases with the further increase of EGR ratio. With an increase of EGR ratio, NOx emission is reduced at the cost of increased smoke, HC and CO emissions as well as the total number and mass of particulates for each fuel.
- 合写作者：
- Zhu RJ, Wang XB, Miao HY, Yang XF, Huang ZH
- 卷号：
- 2011, 90(5): 1731-1737
- 页面范围：
- 1731-1737
- 是否译文：
- 否
- 发表时间：
- 2011-03-13