Molten salt reactor system dynamics in simulink and modelica, a code to code comparison

Visura Pathirana, Sarah Elizabeth Creasman, Ondřej Chvála, Steve Skutnik

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Understanding reactor dynamics is essential for the development of MSRs. Modern computational software allows rapid development and simulation of multiphysics systems. As such, MSRs can be simulated in various programming languages to study their behavior. Meanwhile, employing various software environments and methods can help ensure that simulation results are accurate and openly accessible to the broader research community. In this publication, two variations of software implementation for an MSR dynamic modeling tool in MATLAB Simulink and OpenModelica are compared. A code-to-code comparison is conducted, and both implementations are benchmarked for accuracy and simulation run time. In addition to the benchmark, a pilot quality assurance program is introduced for the implementation of the OpenModelica model. Finally, a multi-parameter sensitivity analysis is performed to demonstrate possible applications of the Modelica model.

Original languageEnglish
Article number112484
JournalNuclear Engineering and Design
Volume413
DOIs
StatePublished - Nov 2023

Funding

This research was partially funded by the United States Department of Energy award DE-NE0008793 . The authors are grateful for this generous support. The authors would also like to thank the reviewers whose suggestions and comments greatly improved the manuscript.

Keywords

  • Dynamics
  • Modelica
  • Molten salt reactor
  • Multiphysics
  • Simulink

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