Performance and emissions of a turbocharged high-pressure common rail engine operating on biodiesel-diesel blends (PDF)
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Performance and emissions of a turbocharged high-pressure common rail engine operating on biodiesel-diesel blends (PDF)
- 发表刊物：
- J Automobile Eng
- 摘要：
- The effect of biodiesel addition to diesel on engine performance, combustion, and
emissions were studied in a turbocharged, high-pressure common rail diesel engine. Biodiesel/diesel blends with different biodiesel fractions were used and compared with neat biodiesel and diesel at different engine loads and speeds. The results show that the brake thermal efficiency increases slightly as biodiesel is added to diesel. Exhaust gas temperature is not significantly affected at low engine speeds and decreases gradually at high engine speeds with an increase in biodiesel fraction. Fuel injection includes both pilot and main injections. Diesel and biodiesel give a similar start to the heat release. The first peak in the heat release rate for biodiesel is lower than that of diesel, while the second peak is higher for biodiesel. The heat
release rate curve for biodiesel indicates that the use of biodiesel increases thermal efficiency and NOx emission compared to that of diesel especially at high engine loads. Hydrocarbon and CO emissions maintain very low values and little variation is seen for the different fuels. CO2 emission decreases with increasing biodiesel fraction in the blends. The level of NOx emission
decreases slightly at low engine loads and increases at high engine loads with increasing biodiesel fraction. Biodiesel reduces particulate matter (PM) emission significantly and PM reduction effectiveness is increased at high engine loads and/or speed. The oxygen in biodiesel plays a key role in reducing PM emission. Biodiesel/ diesel blends can improve performance
and decrease emissions for turbocharged, high-pressure common rail diesel engines.
- 合写作者：
- Wang XG, Zheng B, Huang ZH, Zhang N
- 卷号：
- 2011, 225(1): 127-139
- 页面范围：
- 127-139
- 是否译文：
- 否
- 发表时间：
- 2011-01-18