Since 18 of December 2019 uses Nucleus credentials. Visit our help pages for information on how to Register and Sign-in using Nucleus.
Apr 19 – 22, 2022
Vienna, Austria
Europe/Vienna timezone
FR22 starts in Vienna 19 - 22 April 2022 Online Stream:

The Versatile Test Reactor (VTR) Approach to Sodium Fire Hazards Analysis and Protection System Methodology

Apr 20, 2022, 3:04 PM
Vienna, Austria

Vienna, Austria

ORAL Track 2. Fast Reactor Safety 2.3 Accident Analysis


Matthew Bucknor (Argonne National Laboratory)


The Versatile Test Reactor (VTR) is a fast spectrum test reactor currently being developed in the United States under the direction of the US Department of Energy (USDOE), Office of Nuclear Energy. The mission of the VTR is to enable accelerated testing of advanced reactor fuels and materials required for advanced reactor technologies. The conceptual design of the 300 MWth sodium-cooled metallic-fueled pool-type fast reactor has been led by US National Laboratories in collaboration with General Electric-Hitachi and Bechtel National Inc.

Current VTR efforts include the development, design, and analysis of a sodium fire protection system (SFPS) strategy for the reactor facility. This paper summarizes the evolution of SFPSs in the U.S. from previous test reactors such as the Experimental Breeder Reactor II (EBR-II) and the Fast Flux Test Facility (FFTF) to larger proposed commercial reactors designs such as the Clinch River Breeder Reactor (CRBR), PRISM, the Sodium Advanced Fast Reactor (SAFR), and the Large-Scale Prototype Breeder (LSPB). Additionally, the software tools (NACOM and SOFIRE-II) utilized to analyze sodium fire scenarios for the VTR are described along with a summary of current software verification and validation (V&V) efforts. Finally, the design philosophy for the VTR SFPS strategy is presented, which is based on SPFS design evolution and insights from preliminary sodium fire analyses. The work reported in this summary is the result of studies supporting a VTR conceptual design, cost, and schedule estimate for DOE-NE to make a decision on procurement. As such, it is preliminary.

Speaker's email address
Speaker's title Mr
Affiliation/Organization Argonne National Laboratory
Country/Int. organization United States of America

Primary author

Matthew Bucknor (Argonne National Laboratory)


James Sienicki (Argonne National Laboratory) Anton Moisseytsev (Argonne National Laboratory)

Presentation materials

There are no materials yet.

Peer reviewing