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Soot Formation, Oxidation and Its Mechanism in Different Combustion Systems and Smoke Emission Pattern in DI Diesel Engines
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Abstract
The purpose of this study is to investigate soot formation and oxidation behaviors with two combustion systems for a DI Diesel engine.
The conventional DI combustion system and the conical spray combustion system (CSCS system) were used in a single-cylinder Diesel engine. Under various operation conditions, the measurements were taken of soot, NOx and oxygen concentration by transient sampling technique; KL factor and flame temperature by the two-color method; particulates emission by dilution sampling mini-tunnel. The soot microstructure was also investigated with transmission electron microscope.
The temporal histories of soot concentration and KL factor show that soot concentration in the combustion chamber with CSCS is lower than that with a conventional combustion system. The main reason for this is that the spatial distribution of fuel-air mixture is more uniform with the CSCS.
The results from electron micrographic analysis show that soot oxidation is influenced by aggregation and agglomeration of soot particles. A very small amount of crystal soot with an unstable lattice is formed at higher flame temperature.
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Citation
Ning, M., Vuan-Xian, Z., Zhen-Huan, S., and Hu-Guo-dong, ., "Soot Formation, Oxidation and Its Mechanism in Different Combustion Systems and Smoke Emission Pattern in DI Diesel Engines," SAE Technical Paper 910230, 1991, https://doi.org/10.4271/910230.Also In
References
- Aoyagi Yuzo Kamimtoto Takeyuki Matsui Yukio Matsuoka Shin “A Gas sampling Study on the Formation Processes of Soot and NO in a DI Diesel Engine,” SAE Paper NO. 800254 1980
- Matsui Y. Kamimtoto T. Matsuoka S. “Formation and Oxidation Processes of Soot Particulates in a DI Diesel Engine-An Experimental Study via the Two-Color Method,” SAE Paper NO. 820464 1982
- Kittelsen David B. Pipho Michael J. Ambs Jeffrey L. Luo Lang “In-Cylinder Measurements of soot Production in a Direct-In-jection Diesel Engine,” SAE Paper NO. 880344 1988
- Guodong Hu “The New Strategy for DI Diesel Engine Developments,” SAE Paper 900442 1990
- Zbu Yuanxian Hu Guodong Wei Xiangyi Yu Jian “A Study on a New Combustion System for D.I. Diesel-CSCS System,” SAE Paper NO. 880429 1988
- Xiaofang Cheng “A Study and Pluralistic Measurement about the Diesel Engine's Flame Radiation,” Dalian Univ. of Tech. 1988
- Bennethum James E. Mattavi James N. Toepel Richard R. “Diesel Combustion Chamber Sampling-Har ware, Procedures, and Date Interpretation,” SAE Paper NO. 750849 1975