Division of Systems Research

In order to embody the sustained security of global environment and the local material recycling society, we are engaged in development of the new ecological and highly-efficient energy conversion technologies, using the high temperature processes such as combustion and gasification. We develop the highly-efficient utilization technology of biomass and waste, elucidation of ash behavior and ash adhesion control technology in the energy conversion processes of solid fuel.

In this laboratory, we are conducting basic research on detonation and its application to aerospace propulsion and gas-turbine engines. By utilizing the detonation phenomenon, innovative downsizing and high performance of combustors and engine systems can be expected. The detonation engine will fundamentally change various systems.

Space flight model of detonation propulsion system

In order to realize the stable and reliable operation of future electric power system with high penetration renewable energy such as photovoltaic power generation and wind power generation, we investigate and develop the following issues: highly accurate and reliable forecasting and nowcasting method of renewable power output, sophisticated planning and operation method of electric power system, control method of demand-side resources and distributed generators to contribute to power system operation. In addition, we develop a time-series data of future electricity demand and renewable power output to be used in a system assessment in consideration of the actual situation.

Towards the realization of an environmentally sustainable transportation system considering the widespread use of autonomous vehicles in the near future, we propose that future visions of urban transport systems should explicitly consider the constraints of environmental impact and energy consumption, and develop and evaluate transportation policy measures based on a rigorous understanding of individuals’ travel behaviors. Our research topics include the efficiency of the use of electric vehicles, social acceptance of hydrogen fueling station, countermeasures to reduce traffic accidents, optimum management of urban road traffic using autonomous vehicles, and fulfillment of the mobility needs of mountainous rural communities.

For information and communication systems for a sustainable society, we are conducting research on their security from the perspective of cryptography and information security. Through the research on lightweight cryptography for energy conservation, security techniques for beyond 5G/6G systems, and quantum security analysis, we aim to contribute to realizing a safe and secure society, where everyone can benefit from information and communication technology into the future.

We are conducting research to realize a sustainable society by assessing the impact of energy and the environment. Focusing particularly on land use and spatial evaluation of the natural environment, we are working on the comprehensive solution of problems related to renewable energy（ biomass, small-scale hydropower, solar power, etc.）, ecosystem services, economy, and society. Along with environment assessments ranging from small-scale field surveys to global-scale assessment, we are engaged in research with an interdisciplinary approach combining, for example, spatial analysis such as GIS（ Geographical Information System）, AI, UAV, and field surveys.

We conduct research on the application of micro space formed by ultrasonication to the material design and development of chemical/physical processes aiding energy conversion and wastetreatment.

Ultrasonic cavitation and hotspot

Our research aims to realize sustainable material conversion and circulation by utilizing energy resources. Specifically, we focus on water splitting and carbon dioxide conversion using solar energy and electricity derived from renewable sources.