Knocking combustion in spark-ignition engines
Tsinghua University · University of Wisconsin–Madison
Abstract
Knocking combustion research is crucially important because it determines engine durability, fuel consumption, and power density, as well as noise and emission performance. Current spark ignition (SI) engines suffer from both conventional knock and super-knock. Conventional knock limits raising the compression ratio to improve thermal efficiency due to end-gas auto-ignition, while super-knock limits the desired boost to improve the power density of modern gasoline engines due to detonation. Conventional combustion has been widely studied for many years. Although the basic characteristics are clear, the correlation between the knock index and fuel chemistry, pressure oscillations and heat transfer, and…
Citation impact
- FWCI
- 49.64
- Percentile
- 100%
- References
- 340
Authors
3Topics & keywords
- Detonation
- Ignition system
- Combustion
- Deflagration
- Engine knocking
- Nuclear engineering
- Shock wave
- Homogeneous charge compression ignition
- Affordable and clean energy