Doshisha University (Private)

http://istc.doshisha.ac.jp/course/mechanical/labo_29.html
Major Research Topics
3D spray structure measurements using holography
Construction of a hydrogen energy network and development of high-efficiency hydrogen engines
Design of high-efficiency, low-emission combustion method using spatio-temporal combustion control by multi-stage fuel
injection
Numerical simulation of spray combustion process by LES and determining the internal structure by Rayleigh scattering
Basic research on forming CVD semiconductor layers using flash boiling
Research on high-efficiency, thermoelectric-conversion cogeneration systems
Design proposals for environmentally symbiotic town blocks
The Spray and Combustion Science Laboratory is undertaking 25 research projects in the following six categories: “1. Optical
measurement,” “2. Fuel research,” “3. Spray research,” “4. Chemical reactions and combustion research,” “5. Numerical simulation
and modeling,” and “6. Applied research.”
“1. Optical measurement”
involve the use of various laser-based, leading-edge optical measurement technologies for the highly accurate, non-contact
measurements of fuel vapor, chemical species, temperatures, and concentrations inside engines to facilitate the spray combustion
process.
“2. Fuel research”
includes the development of practical hydrogen-diesel engines, next-generation biofuels, and new methods for fuel reforming. In
particular, the proposal of fuel-design theories including LCA, and of high-efficiency, low-emission spray combustion methods.
“3. Spray research”
is a systematic approach to engine spray research, including modeling of cavitation in nozzles, the disintegration process, and the
spray process.
“4. Chemical reactions and combustion research”
includes the highly accurate numerical simulation of soot particles in the combustion field using chemical reaction dynamics;
research on the application of a low-emission combustion method, homogeneous charge compression ignition (HCCI), to diesel
engines; and the elucidation of new combustion methods by fuel design techniques.
“5. Numerical simulation and modeling”
includes integrating the previously developed spray-wall impinging model and flash-boiling spray model into a multi-dimensional
simulation scheme, and simultaneously advancing research on the highly accurate numerical simulation of the spray combustion
process using Large Eddy Simulations.
“6. Applied research”
involves investigating new areas, such as on-board measurements of performance and emission data during diesel vehicle
operation; research on cogeneration systems for high-efficiency, thermoelectric-conversion; research on forming CVD
semiconductor layers using flash boiling spray; and research on the manufacture of nano-particles.
Keywords