(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
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概要
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The present study focuses on clarifying the combustion mechanism of the homogeneous charge compression ignition (HCCI) engine in order to control ignition and combustion as well as to reduce HC and CO emissions by calculating the chemical kinetics of elementary reactions. For the calculations and experiments, n-Butane was selected as fuel since it is the fuel with the smallest carbon number in the alkane family that shows two-stage auto-ignition (heat release by low temperature reaction (LTR) and by high temperature reaction (HTR)) similar to higher hydrocarbons such as gasoline. The CHEMKIN code was used for the calculations assuming zero dimensions in the combustion chamber and adiabatic change. Calculations were carried out for various parameters, including : equivalence ratio, initial temperature, initial pressure, compression ratio, engine speed and initial chemical species concentrations. The influences of these parameters on the appearance timing of LTR and HTR, and on the combustion duration of LTR and HTR were clarified. The results of the present study indicate that in order to reduce HC and CO emissions in exhaust gas and/or to maintain high combustion efficiency for the HCCI engine, it is necessary that the maximum temperature of the combustion cycle be over 1500K.
- 一般社団法人日本機械学会の論文
- 2001-07-01
著者
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Yamasaki Yudai
Department Of System Design Engineering Keio University
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Yamasaki Yudai
Department Of System Design Engineering Faculty Of Science And Technology Keio University
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Iida Norimasa
Department Of System Design Engineering 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)