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Experimental and Numerical Study of HCCI Combustion using Cooled EGR
Technical Paper
2015-32-0770
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Unresolved issues of Homogeneous Charge Compression Ignition (HCCI) combustion include an extremely rapid pressure rise on the high load side and resultant knocking. Studies conducted to date have examined ways of expanding the region of stable HCCI combustion on the high load side such as by applying supercharging or recirculating exhaust gas (EGR). However, the effect of applying EGR gas to supercharged HCCI combustion and the mechanisms involved are not fully understood.
In this study, the effect of EGR gas components on HCCI combustion was investigated by conducting experiments in which external EGR gas was applied to supercharged HCCI combustion and also experiments in which nitrogen (N2) and carbon dioxide (CO2) were individually injected into the intake air pipe to simulate EGR gas components. In addition, HCCI combustion reactions were analyzed by conducting chemical kinetic simulations under the same conditions as those of the experiments.
The results revealed that the injection of either N2 or CO2 has the effect of retarding and moderating HCCI combustion. It was observed that CO2, which is a three-atom molecule, has an especially strong effect on moderating HCCI combustion compared with the result seen for N2.
Authors
- Munehiro Matsuishi - Nihon University Graduate School
- Yuya Higuchi - Nihon University Graduate School
- Yasuhide Abe - Nihon University of Graduate School
- Yuma Ishizawa - Nihon University Graduate School
- Akira Iijima - Nihon University
- Hideo Shoji - Nihon University
- Kazuhito Misawa - Suzuki Motor Corp.
- Hiraku Kojima - Suzuki Motor Corp.
- Kenjiro Nakama - Suzuki Motor Corp.
Topic
Citation
Matsuishi, M., Higuchi, Y., Abe, Y., Ishizawa, Y. et al., "Experimental and Numerical Study of HCCI Combustion using Cooled EGR," SAE Technical Paper 2015-32-0770, 2015, https://doi.org/10.4271/2015-32-0770.Also In
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