Simulator Lineup


Innovative Plant Simulator with Usability and Reliability


GRAPE is a state of the art platform for a plant simulator. This revolutionary platform has great potential to make your educational course and research dramatically effective.

GRAPE is a platform for an educational and engineering simulator which can provide a simple and easy operation experience where reliable plant models can be treated with RELAP/SCDAPSIM that has been used for licensing applications. With easy-to-understand interactive operations for specifying analysis conditions and rich visualization capabilities, it can be easily used for nobis users to start learning of basic principles on nuclear power plant behaviors without deep knowledges on a calculation code itself. It can cover a wide range of educational or engineering needs with a nature of flexibility and extensibility.

A trial version of GRAPE is available here.


  • Tokai University
  • Fukui University
  • International Nuclear Energy Development of Japan
  • Nagoya University
  • University of Tokyo
  • Central Research Institute of Electric Power Industry
  • Instituto Nacional de Investigaciones Nucleares

Demonstration Video


GRAPE for Engineering

GRAPE for Education

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