Korea Advanced Institute of Science and Technology · Chemical Engineering
Professor Choongsik Bae's research lab specializes in advanced internal combustion engine technologies, focusing on improving engine efficiency and reducing emissions through innovative injection strategies. The lab investigates direct water and fuel injection systems, particularly in high-compression gasoline and diesel engines, to mitigate knocking and enhance performance. Utilizing optical imaging and high-pressure injection techniques, the lab explores nozzle geometry and spray dynamics to optimize injector design and combustion processes. Their work bridges fundamental fluid dynamics with practical engine applications, aiming for cleaner and more efficient transportation technologies.
Figures are computed from collected data and may differ slightly.
Water was directly injected into the cylinder with an injection pressure of 5 MPa to investigate its effect on engine performance and emissions in a gasoline engine. The test engine was a 1.6-L naturally aspirated prototype engine consisted of water direct injection and port fuel injection systems. The engine featured a compression ratio of 13.5. Commercial gasoline direct injection injectors were used to inject the water. The water was injected at a fixed timing of −120 crank angle degrees afte
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