In our laboratory, we are actively working on the development of energy
systems that will support the future.Especially recently, we have focused
on the development of fusion reactors and research on hydrogen energy systems.
From the perspectives of "securing long-term resources," "stable
supply," and "social acceptability (safety and environment),"
fusion reactors are considered to be an important energy source for the
future. We are developing an optimal system for efficiently producing and
recovering hydrogen isotopes, which are fuels, and researching the safety
of fusion reactors.
Hydrogen is attracting attention as a clean secondary energy with a small
environmental load. So far, we have been conducting research on solid oxide
fuel cells and polymer electrolyte fuel cells, research on hydrogen storage,
and research on hydrogen production systems that utilize the heat of nuclear
reactors.Recently, we are developing an efficient hydrogen production method
using the hydrogen permeation phenomenon and research and development of
a hydrogen production method using direct plasma decomposition.
One of the characteristic points of our laboratory is that we conduct experiments using "tritium ," which is a radioactive isotope of hydrogen.In 1978, a tritium laboratory was launched in the unsealed radioisotope (RI) handling area of the Faculty of Engineering at Hakozaki Campus in Kyushu University. In 2013, the RI laboratory of the Faculty of Engineering was integrated with the RI laboratory of the Faculty of Science, and is operated at Ito campus in Kyushu University as the RI Center Ito laboratory. This laboratory has been conducting research using tritium for a long time since the tritium laboratory was established in Kyushu University, and has a lot of knowledge about tritium behavior and has accumulated know-how on its handling. We are also participating in educational activities on isotope separation using tritiated water and measurement of tritium beta rays.
Development of complex systems
Large and complex systems such as fusion reactors consist of several subsystems. And that subsystem also consists of several basic units.
We will first conduct basic experiments in the university laboratory with
the aim of clarifying the phenomena in the basic units.Here, we focus on
some elementary processes that affect mass transfer phenomena in the unit,
and accurately quantify the mass transfer rate and reaction rate capacity.Then,
individual phenomena are modeled, and multiple mass transfer parameters
obtained independently are used to enable numerical simulation of seemingly
complex mass transfer phenomena that occur in the unit.
By simulating as a combination of individual phenomena, not only can the
system design be embodied, but design and operational problems that have
not been seen before may become apparent.Only a firm understanding of the
basic phenomena reveals the mechanism of the phenomena observed in large-scale
systems.Therefore, we are focusing on understanding the basic phenomena
in the experiments conducting in our laboratory.The important thing here
is to properly understand the meaning of the interested phenomenon , by
viewing a whole system.
Collaboration study
We are also actively engaged in joint research and participating in international projects.
・Japan-US International Joint Research Project : JUPITER-II, TITAN, PHENIX
(Idaho National laboratory, USA)
・China-Japan-Korea Asia 3 Foresight Program(ASIPP, China)
・National Institutes for Quantum and Radiological Science and Technology
(QST)
・National Institute for Fusion Energy (NIFS)
・Japan Atomic Energy Agency (JAEA)
・Research Institute for Applied Mechanics, Kyushu University
・Hydrogen Isotope Research Center, Organization for Promotion of Research Center, University of Toyama
・MOSTECH