Research and development for next generation nuclear systems

1. Research and development for next generation nuclear systems objective and summary of FBR designs
2. Lessons from prototype reactor "Monju" accident
3. R&D for FBR cycle commercialization
4. Example of advanced research on reactor structure

Fundamental Mechanics

Project domain

Theme: System analysis of energy plants

　Simulation analysis of energy plant systems are made coupling fluid-structure behavior and heat transfer processes. To satisfy safety requirement and component integrety, the thermal transient are optimized.

Theme: Structural analysis of enegy plant equipment

　Here, detailed simulation of temperature response and thermal stress are made during transient operation of energy plant equipment.

These two themes above are conducted in team.

Advanced Simulation

<Analysis of Nuclear power plant design>

• Plant components design
• Heat flow evaluation and modeling
• Structure integrity evaluation and modeling

Structure engineering of nuclear components

• Material/structure strength
• Structure analysis by Finite Element Method (FEM)
• Structure design of FBR and High temperature equipement

Structure mechanics and nuclear material exercices

• Material deformation and structural damage mechanism
• Exercise of structure analysis with FEM software
• Failure mode classification and stress calculation in high temperature equipement
  Thermal stress evaluation