Serch Site
Serch Site
The "Innovative Combustion Technology" program, a national project is established under the Cabinet Office, Government of Japan as a part of the" Cross-ministerial Strategic Innovation Promotion Program (SIP)". The "Gasoline Combustion Team" is one of teams of the "Innovative Combustion Technology" program.This website is to introduce the research and development activities of the "Gasoline Combustion Team."
The "Gasoline Combustion Team" is comprised of Keio University as a Leader university and 29 universities as a Cluster university. Upon agreement with the Japan Science and Technology Agency (JST), we have been conducting the research on the "Super-Lean Burn for Gasoline Engines" with a support of the Research Association of Automotive Internal Combustion Engines (AICE) under the strong industry, academia and government collaboration.
We take both scientific and technological approaches to innovative combustion technologies to realize the "Super- Lean Low Temperature Combustion", targeting a thermal efficiency of 50%.
Team Leader
Project Professor Norimasa Iida
Keio University, Graduate school of science and technology
“Gasoline-surrogate detailed kinetic model revision 2.0 (SIP-Gd2.0) “and “Gasoline surrogate reduced kinetic model revision 2.0 (SIP-Gr2.0)”. They are a part of outcomes of the research conducted by the Gasoline Combustion Team for the SIP's Innovative Combustion Technology program. These mechanisms are applicable to common five-component surrogate fuels 'S5H and S5R', which are used for experiments and validation for this project. These surrogate fuels are verified to emulate the basic combustion characteristics of the practical gasoline, such as autoignition properties and burning velocity....
The 28th Internal Combustion Engine Symposium http://www.jsae.or.jp/intconf/ice/sympo2017.php 6th-8th December, 2017 Fukuoka Recent Hotel Registration number of participants: 427 Number of papers： 105 （SIP Gasoline combustion team:10） The 28th Internal Combustion Engine Symposium was held in Fukuoka. There were over 420 participants from automobile manufacturers, automotive components manufacturers and research institutes. I have believed that the participants have obtained the new direction for engine system from the plenary lectures, forum, many prese...
Saturday, Dec. 16, 2017 The 3rd meeting of Fuel and Knocking Reduction Gr. in this year was held at Mazda Motor Corporation in Hiroshima. Each cluster presented their research progress and proposal for future fuel for automobile engines. We discussed about the improvement of our chemical mechanism for gasoline surrogate fuel, and the importance of transition from ignition kernel into flame propagation in engines. We also started exchanging our opinions for future fuel properties those enable to get the higher engine performance. We are all trying and coming close to the answer for knocking re...
The 23rd Small Engine Technology Conference （SETC) http://www.setc-jsae.com/ 15th-17th Nov. 2017 Jakarta Convention Center Registration number of participants: 362 Number of papers (Overseas)：91 (SIP Gasoline combustion team number: Keio University 2 , Tokyo City University 1 , Nihon University 2 ） Small Engine Technology Conference (SETC) is held annually in co-hosted of the Society of Automotive Engineers (JSAE) and SAE International. SETC is an international conference focusing on technologies related to small engines such as motorcycles, outboard motors, general-purpose engines,...
SIP Innovative Combustion Technology members meeting was held by sponsorship of the Japan Science and Technology Agency on October 21,2017. Mr.Sugata (Keio University) and Mr.Fujii (Kumamoto University) won "2017 Mr.Sugiyama PD Award" for the best performing student. Mr.Sugata winning study subject here From left Mr.Sugiyama PD, Mr.Sugata, Mr.Fujii, Mr.Furuno PD ...
To achieve 50% of thermal efficiency in gasoline engines, it is expected to realize super lean-burn with equivalence ratio 0.5 or less. However, the extension of ignition delay and the increase of cycle-to-cycle variation are issues to be solved. To investigate these phenomena, this study shows the trend of the turbulent Karlovitz number as a function of crank angle on the turbulent combustion diagram proposed by Peters. The turbulent Karlovitz number is calculated from laminar burning velocity, flame thickness, turbulence intensity and integral length scale. In the case of super lea...
SIP Innovative Combustion Technology members meeting was held by sponsorship of the Japan Science and Technology Agency on November 7th,2015. Mr.Hiraoka(Tokyo Institute of Technology) won "2015 Mr.Sugiyama PD Award" for the Best performing student. Mr.Hiraoka winning study subject here. Mr.Hiraoka who wins an award from Mr.Sugiyama PD...
Direct numerical simulation of a turbulent hydrogen-air premixed plane jet flame is performed to investigate fractal characteristics and to evaluate the fractal dynamic subgrid scale (FDSGS) combustion model. Katsuhiro Hiraoka Graduated School of Tokyo Inst. of Tech Details of contents： Katsuhiro Hiraoka, Yuki Minamoto, Masayasu Shimura, Yoshitsugu Naka, Naoya Fukushima and Mamoru Tanahashi, A Fractal Dynamic SGS Combustion Model for Large Eddy Simulation of Turbulent Premixed Flames, Combustion Science and Technology, 188 (9) 1472-1495 (2016). Comment: ...
・It was examined the influence of reduction of turbulence by compression and increase of heat transfer by enhanced tumble on local heat flux. ・It was demonstrated cooling loss reduction by lean burn. Daijiro Ishii Tokyo City University Details of contents： Daijiro Ishii et al, Development of thin-film thermocouple for engines and its measurement system, JSAE 2017 Comment: The instantaneous heat flux sensor and measurement system developed by authors realizes high accuracy, as a result of application to the engine, it was succeeded in demonstrati...
It is important to prevent knock phenomenon in the case where improving thermal efficiency by adjusting spark advance cyclically. In this study, the control algorithm provides the maximum thermal efficiency under the constraint of knock probability by combining the extremum seeking method for thermal efficiency and maximal likelihood-based control for knock probability. Xun Shen Sophia University Details of contents： Published in Xun Shen, Yahui Zhang, Tielong Shen, and Chanyut Khajorntraidet, Spark Advance Self Optimization with Knock Probability Threshold fo...
