News

A paper written by Prof. Zhao's team, "Insights into engine autoignition: combining engine thermodynamic trajectory and fuel ignition delay iso-contour", has been accepted for publication by Combustion and Flame. Abstract: One of the ultimate goals of chemical kinetic study is to understand and predict autoignition in engines. In this study, utilizing toluene primary reference fuels (TPRF) as a gasoline surrogate and a recently developed multicomponent gasoline kinetic mechanism, we have demonstrated a general approach to analyze autoignition in arbitrary spark‑ignition (SI) and advanced compression ignition (ACI) engine conditions by combining thermodynamic pressure‑temperature trajectory and the fuel ignition delay iso‑contours. This method allows direct evaluation of controlling chemistry, potential involvement of low temperature heat release, and the dependence of autoignition to conventional fuel metrics (research and motor octane rating, i.e., RON…

Dr. Haiwen Ge has been appointed as the Scientific Advisory Committee Member of 2019 International Conference on Advanced Vehicle Powertrains. The conference will be held at Hefei, China, Sep.25-27, 2019 (http://www.icavp2019.org). All qualified papers will be submitted to journal "International Journal of Powertrains".

Corbin Freeman and Haiwen Ge attended the 2018 ASME Internal Combustion Engine Division Fall Technical Conference. Corbin presented the paper “Numerical Investigation of Ignition Mechanism in the Main Chamber of Turbulent Jet Ignition”. Haiwen presented the paper  “A Comprehensive Ignition System Model for Spark-ignition Engines”.  Dr. Ge is one of the session chairs of the conference.

One paper authored by Dr. Haiwen Ge and Prof. Rui He has been accepted by Journal of Environmental Sciences: "Raman Spectroscopy of Engine-Out Diesel and Gasoline Soot Using Different Laser Power" Abstract: We studied engine-out soot samples collected from a heavy-duty direct-injection diesel engine and a port-fuel injection gasoline spark-ignition engine. The two types of soot samples were characterized using Raman spectroscopy with different laser power. A Matlab program using least-square-method with trust-region-reflective algorithm was developed for curve fitting. We used a DOE (design of experiments) method to avoid local convergence. This method was used for two-band fitting and three-band fitting. The fitting results were used to determine the intensity ratio of D and G Raman bands. We find that high laser power may cause oxidation of soot samples, which gives…

Prof. Peng Zhao and Dr. Haiwen Ge attended the Converge User Conference at Madison, WI. Prof. Zhao gave a talk titled as "Flame - Wall film Interaction". Dr. Ge gave a talk titled as "A Comprehensive Ignition System Model for Spark Ignition Engine".

Two papers have been accepted for publication at the ASME ICED Fall Technical Conference that will be held at the San Diego, CA. Ge, H.W., Zhao, P., “A Comprehensive Ignition System Model for Spark-ignition Engines”, ASME ICED Fall Technical Conference, ICEF2018-9574, 2018. Muller, M., Freeman, C., Zhao, P., Ge, H.W., “Numerical Investigation of Ignition Mechanism in the Main Chamber of Turbulent Jet Ignition”, ASME ICED Fall Technical Conference, ICEF2018-9587, 2018.

The paper "Fuel wall film effects on premixed flame propagation, quenching and emission" has been accepted for publication in International Journal of Engine Research.

In June 28, Dr. Peng Zhao won the prestigious Bernard Lewis Fellowship from the Combustion Institute. Congratulations to Dr. Zhao!

In June 18-22, Dr. Haiwen Ge attended the DOE Annual Merit Review meeting at Arlington, VA. He is one of the reviewers for this meeting.

In June 10, Dr. Haiwen Ge gave a talk at the Zhejiang University titled "Modeling and Optimization of Internal Combustion Engines".