Our research at PEL.Tokushima covers most of phenomena taking place in the diesel combustion process. It starts with investigation of the diesel spray atomization,impingement,evaporation and the fuel-air mixing and then goes to some work on thermal decomposition and oxidation of liquid fuels, and NO destruction with HC.
Some students are also working on the mechanism of diesel spray ignition and combustion using a free piston Rapid Compression Machine (RCM) with a total gas sampling system to trace the composition of gas ( Soot, NOx, HCs...) during the ignition and combustion.
Finally we operate a high speed DI Diesel engine to investigate the effect of the combustion chamber geometry, fuel property, injection pressure and EGR upon engine performance and exhausted emissions such as NOx and PM. We also observe the combustion process inside the engine cylinder using endoscopic high-speed photography. We have developed some other optical measurement system shown in research facility.
Here some people are involved with computational work on Diesel engine using Computational Fluid Dynamics (CFD) to predict the three dimensional gas flow and combustion inside the engine using the FREC code.
we are involved with the hydrogen fueled engine project. This work is going on using a ZCR engine developed in PEL.Tokushima. We are also fundamentally investigating the hydrogen combustion employing a shelieren photography system. Recently we begin to work on non-thermal plasma treatment of diesel exhaust for simultaneous reduction of NOx and PM. Also, a research group is involved with chemical absorption of CO2 from diesel exhaust for selective CO2 EGR system. Finally a research group is developing a burner to combust a newly developed water-emulsion fuel.