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Two Types of Autoignition and Their Engine Applications
Technical Paper
2005-01-0178
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The generally accepted explanation of autoignition in engines is that the reactivity is driven by temperature, where autoignition occurs after the mixture has reached some critical temperature (approx. 1000 K) by a combination of self-heating due to preignition reactions and compression heating due to piston motion and flame propagation. During the course of our investigations into autoignition processes and homogeneous charge compression ignition we have observed some ignitions that begin at much lower temperature (< 550 K). In this paper we describe these observations, our attempts to investigate their origins, and an alternative explanation that proposes that traditional models may be missing the chemistry that explains this behavior. Finally, applications of lower temperature chemical reactions are discussed.
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Authors
- Jincai Zheng - Mechanical Engineering Department, Drexel University
- David L. Miller - Mechanical Engineering Department, Drexel University
- Nicholas P. Cernansky - Mechanical Engineering Department, Drexel University
- Dexin Liu - National Engine Combustion Laboratory, Tianjin University
- Yong Li - National Engine Combustion Laboratory, Tianjin University
- Xiujing Shang - National Engine Combustion Laboratory, Tianjin University
- Mingxian Zhang - College of Chemical Engineering,Beijing Union University
Citation
Zheng, J., Miller, D., Cernansky, N., Liu, D. et al., "Two Types of Autoignition and Their Engine Applications," SAE Technical Paper 2005-01-0178, 2005, https://doi.org/10.4271/2005-01-0178.Also In
Homogeneous Charge Compression Ignition (HCCI) Combustion 2005
Number: SP-1963; Published: 2005-04-11
Number: SP-1963; Published: 2005-04-11
Homogeneous Charge Compression Ignition (HCCI) Combustion on CD-ROM from the SAE 2005 World Congress
Number: SP-1982CD; Published: 2005-04-11
Number: SP-1982CD; Published: 2005-04-11
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