Autoignition and Combustion of Natural Gas in a 4 Stroke HCCI Engine(<Special Issue>Recent Combustion Technology in Internal Combustion Engines)
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概要
- 論文の詳細を見る
Homogeneous charge compression ignition (HCCI) is regarded as the next generation combustion regime in terms of high thermal efficiency and low emissions. It is difficult to control autoignition timing and combustion duration because they are controlled primarily by the chemical kinetics of fuel-air mixture. In this study, it was investigated the characteristics of autoignition and combustion of natural gas in a 4 stroke HCCI engine. And also, to clarify the influence of n-butane on autoignition and combustion of natural gas, it was changed the blend ratio of n-butane from 0 mol % to 10 mol % in methane/n-butane/air mixtures. Autoignition strongly depends on incylinder gas temperature. Autoignition of natural gas occurs when in-cylinder gas temperature reaches in a range of 1 000 ± 100 K under this experimental condition. To realize high thermal efficiency and low CO emissions, it is necessary to prepare operation conditions that maximum cycle temperature is over 1 500 K. Autoignition temperature is 25 K lower by increasing n-butane blend ratio of 10%. As the blend ratio of n-butane increases, the maximum cycle temperature increases, and THC, CO emissions reduce.
- 一般社団法人日本機械学会の論文
- 2003-02-15
著者
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Ishii Kazuaki
Department Of System Design Engineering Faculty Of Science And Technology Keio University
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JUN Daesu
Department of System Design Engineering, Faculty of Science and Technology, Keio University
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IIDA Norimasa
Department of System Design Engineering, Faculty of Science and Technology, Keio University
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Jun Daesu
Department Of System Design Engineering Faculty Of Science And Technology Keio University
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Iida Norimasa
Department Of System Design Engineering Faculty Of Science And Technology Keio University
関連論文
- Autoignition and Combustion of Natural Gas in a 4 Stroke HCCI Engine(Recent Combustion Technology in Internal Combustion Engines)
- (1-15) Numerical Analysis of Auto Ignition and Combustion of n-Butane and Air Mixture in The Homogeneous Charge Compression Ignition Engine by Using Elementary Reactions((NCS-1)Novel Combustion Systems 1-Homogeneous Charge, Premixed Charge Compression Ign
- Numerical Analysis of Autoignition and Combustion of n-Butane and Air Mixture in Homogeneous-Charge Compression-Ignition Engine Using Elementary Reactions(Recent Combustion Technology in Internal Combustion Engines)
- Research on the Influence of Hydrogen and Carbon Monoxide on Methane HCCI Combustion(Advanced Combustion Technology in Internal Combustion Engines)
- Research on the Influence on Natural Gas HCCI Combustion of Hydrogen and Carbon Monoxide(HCCI, Natural Gas)
- OS-C4: An Investigation of Mixing Stratification of DME and n-Butane in HCCI Engines Using Chemiluminescence Imaging(OS-C The Role of Heterogeneity of mixture on HCCI and PCCI Combustion,Organized Session Papers)