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The SALT Research Group

UC Berkeley Nuclear Engineering Department

  • | Home
  • | People
    • Raluca Scarlat
    • Sara Mastromarino
    • Niv Moran
    • Lorenzo Vergari
    • Haley Williams
    • Sasha Kennedy
    • Ryan Hayes
    • Christian M. Sclafani, MEng., B.S.E.
    • Michael Borrello
    • Nathanael Gardner
  • | Publications
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    • ThorCon Corrosion Project
    • NEUP – High Temperature Molten Salt Reactor Pump Development
    • NEUP – IRP Molten Salt Reactor Test Bed with Neutron Irradiation
    • Speciation of Light Elements in Molten Salts
    • MS Round Robin 1.0
    • FUTURE EFRC
    • Graphite and Tritium Studies in Molten Fluoride Salts
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    • | Open House Nov. 5, 2021
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NEUP – High Temperature Molten Salt Reactor Pump Development

Abstract (link to NEUP abstract)

PI:

  • Prof. Mark Anderson (University of Wisconsin)

Collaborators:

  • Prof. Raluca Scarlat, University of California, Berkeley (UCB)
  • Joseph Hensel, (Powdermet Inc.)
  • Dr. Kevin Robb, Oak Ridge National Laboratory (ORNL)
  • Industrial Collaborators: Nicolas Zweibaum, Kairos Power (KP)

The promise for developing new, advanced nuclear reactor concepts for improved safety, economics, and U.S. energy resilience rests heavily on developing cost-competitive nuclear technology. For advanced nuclear concepts to achieve cost competitiveness with other low-cost production, three significant challenges must be met: 1) higher operational temperatures for improved efficiency, enabling hybrid energy systems beyond electricity production; 2) reduced capital cost for construction and deployment to lower the levelized cost of electricity (LCOE), and 3) reduced operation and maintenance (O&M) costs to ensure deployed reactors remain in operation and cost competitive. Molten salt reactors (MSRs) present one of the best opportunities to meet these challenges. MSRs operate at high temperatures enabled by the highly stable and very high boiling point of the reactor coolant. Their high energy density and near-atmospheric operating pressure enables both large and smaller reactor systems. Significant reductions in capital cost can be achieved using conventional, ASME Code-approved, commercially available materials. Reduction in O&M costs requires, at least in part, the potential for reduced or simplified inspection requirements and long-term failure free operations of key components such as pumps and valves and heat exchangers.

This project focuses on providing relevant key information on the tribology of bearing material and components (magnets, couplers, ceramic coated wire, and coatings) in high temperature molten salts that will be required in the design of advanced reactor pumps. Investigation of in-service inspection and monitoring of the pump internals will also be addressed in an effort to reduce down time and O&M costs for future reactor.

SALT Group Researchers: Michael Borrello, Ryan Hayes, Lorenzo Vergari

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