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A Spectroscopic Study of the Effects of Multicomponent Fuel Blends on Supercharged HCCI Combustion
Technical Paper
2012-32-0080
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The growing severity of global environmental issues in recent years, including air pollution and the depletion of fossil fuels, has made it necessary for internal combustion engines to achieve higher efficiency and lower exhaust emission levels. Calls for reducing atmospheric emissions of carbon dioxide (CO₂) necessitate thoroughgoing measures to lower the levels of CO₂ originating in the combustion process of internal combustion engines and to facilitate operation on diverse energy sources. Homogeneous Charge Compression Ignition (HCCI) combustion has attracted widespread interest because it achieves high efficiency and can reduce particulate matter (PM) and nitrogen oxide (NOx) emissions simultaneously. These characteristics are obtainable because HCCI combustion can take place at ultra-lean conditions exceeding the limits of flame propagation. However, controlling the ignition timing of HCCI combustion is difficult because much of the process leading to ignition depends on chemical reactions. Additionally, because ignition of the mixture occurs simultaneously at multiple points in the HCCI combustion process, the resultant rapid rise of the cylinder pressure makes stable engine operation difficult at high loads. Therefore, the rapid nature of HCCI combustion must be moderated in order to expand the operating range on the high load side. The present study focused on two different combinations of blended fuels obtained by mixing DME or the standard reference fuel n-heptane (C7H16) with methane or toluene. The effects of different mixing ratios and supercharging on HCCI combustion characteristics were investigated and compared using spectroscopic measurement techniques. The results indicated that two-stage heat release of the hot flame was only observed in the experimental results for the former fuel blend.
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Citation
Asanuma, M., Iijima, A., Yoshida, K., Shoji, H. et al., "A Spectroscopic Study of the Effects of Multicomponent Fuel Blends on Supercharged HCCI Combustion," SAE Technical Paper 2012-32-0080, 2012, https://doi.org/10.4271/2012-32-0080.Also In
References
- Thring, R. “Homogeneous-Charge Compression-Ignition (HCCI) Engines,” SAE Technical Paper 892068 1989 10.4271/892068
- Aoyama, T. Hattori, Y. Mizuta, J. Sato, Y. “An Experimental Study on Premixed-Charge Compression Ignition Gasoline Engine,” SAE Technical Paper 960081 1996 10.4271/960081
- Sato, S. Yamashita, D. Iida, N. Influence of the Fuel Compositions on the Homogeneous Charge Compression Ignition Combustion (First Report) - Effect of the Variations of Fuel Compositions on the Oxidation Reaction Processes of Pre-mixture JSAE Transaction 38 2 113 118 2007
- Iijima, A. Asanuma, M. Komatsu, K. Ryosuke, Shimizu Yoshida, K. Shoji, H. Study of Mechanism Producing Multi-Stage Heat Release in Supercharged HCCI Using Blended Fuel -Reaction Analyses by FTIR Method In-cylinder Spectroscopy and Chemical Kinetic Simulation-, Transactions of Society of Automotive Engineers of Japan 43 2 2012
- Tsutsumi, Y. Hoshina, K. Iijima, A. Shoji, H. “Analysis of the Combustion Characteristics of a HCCI Engine Operating on DME and Methane,” SAE Technical Paper 2007-32-0041 2007 10.4271/2007-32-0041
- Ishibashi, Y. Asai, M. “Improving the Exhaust Emissions of Two-Stroke Engines by Applying the Activated Radical Combustion,” SAE Technical Paper 960742 1996 10.4271/960742
- Iijima, A. Watanabe, T. Yoshida, K. Shoji, H. “A Study of HCCI Combustion Using a Two-Stroke Gasoline Engine with a High Compression Ratio,” SAE Technical Paper 2006-32-0043 2006 10.4271/2006-32-0043
- Ozaki, J. Iida, N. “Effect of Degree of Unmixedness on HCCI Combustion Based on Experiment and Numerical Analysis,” SAE Technical Paper 2006-32-0046 2006 10.4271/2006-32-0046
- Takanashi, J. Awasaka, M. Kakinuma, T. Takazawa, M. Urata, Y. A Study of a Gasoline HCCI Engine equipped with an Electromagnetic VVT Mechanism -Increasing the Higher Load Range with “Inter-Cylinder EGR Boost System” JSAE Transactions 37 6 109 114 2006
- Olsson, J. Tunestål, P. Johansson, B. “Boosting for High Load HCCI,” SAE Technical Paper 2004-01-0940 2004 10.4271/2004-01-0940
- Tsutsumi, Y. Iijima, A. Yoshida, K. Shoji, H. The Effect of Supercharging on Heat Release in an HCCI Engine JSAE Transaction 40 4 1023 1028 2009
- Komatsu, K. Asanuma, M. Iijima, A. Yoshida, K. et al. “A Study of an HCCI Engine Operating on a Blended Fuel of DME and Methane,” SAE Int. J. Engines 5 1 9 16 2012 10.4271/2011-32-0522
- Shoji, H. Saima, A. Shiino, K. Ikeda, S. “Clarification of Abnormal Combustion in a Spark Ignition Engine,” SAE Technical Paper 922369 1992 10.4271/922369
- Kinoshita, K. Oguma, M. Goto, S. Sugiyama, K. et al. “Effects of Fuel Injection Conditions on Driving Performance of a DME Diesel Vehicle,” SAE Technical Paper 2003-01-3193 2003 10.4271/2003-01-3193
- Iijima, A. Yoshida, K. Shoji, H. A Study of Autoignition in an HCCI Engine by Using Light Absorption and Emission Spectroscopy The Seventh International Conference on Modeling and Diagnostics for Advanced Engine Systems (COMODIA 2008) 297 304 2008
- Gaydon, A. G. The Spectroscopy of flame 2nd London Chapman and Hall Ltd. 1974
- Yamasaki, Y. Takahashi, S. Iida, N. Auto-Ignition and Combustion Analysis of DME Air Mixture in an HCCI Engine by Radical Luminescence Measurement and Numerical Calculation JSAE Transaction 34 4 75 80 2003
- Curran, H.J. Fischer, S. L. Dryer, F. L. The Reaction Kinetics of Dimethyl Ether. II: Low-Temperature Pyrolysis and Oxidation in Flow Reactors International Journal of Chemical Kinetics 32 12 741 759 2000
- Ando, H. Difference of Reaction Schemes on Low Initial Temperature Conditions with LTO Reactions and High Initial Temperature Conditions Skipping Them The Seventh International Conference on Modeling and Diagnostics for Advanced Engine Systems (COMODIA 2008) 483 490 2008
- Ando, H. Ohta, Y. Kuwahara, K. Sakai, Y. What is X in Livengood - Wu Integral? Review of Automotive Engineering 30 4 363 370 2009