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Simulation Results of a Thermal Power Dispatch System from a Generic Pressurized Water Reactor in Normal and Abnormal Operating Conditions

Author

Listed:
  • Stephen Hancock

    (GSE Solutions®, Columbia, MD 21046, USA)

  • Dylan Jurski

    (Material Science and Engineering Department, University of Florida, Gainesville, FL 32611, USA)

  • Thomas A. Ulrich

    (Idaho National Laboratory, Idaho Falls, ID 83415, USA)

  • Roger Lew

    (Virtual Technology & Design, University of Idaho, Moscow, ID 83844, USA)

  • Jisuk Kim

    (Idaho National Laboratory, Idaho Falls, ID 83415, USA)

  • Olugbenga Gideon

    (Department of Psychology and Communication Studies, University of Idaho, Moscow, ID 83844, USA)

Abstract

Amid economic pressures in the U.S. electricity market, nuclear utilities are exploring new revenue streams, including hydrogen production. A generic pressurized water reactor simulator was modified to incorporate a novel design for a TPD system coupled to a hydrogen production plant. Standard malfunctions were included in the simulation design, including steam line breaks at various system locations and flow interruptions in the hydrogen plant due to multiple faults, reflecting anticipated operational challenges. It is imperative that the TPD system operation has a minimal effect on the reactor power, primary coolant system, and turbine system operation and performance. Due to the specific design and application of this TPD system, with the proposed turbine control system changes, the overall impact on the existing plant systems is low. Normal TPD operating scenarios resulted in minor effects on the existing plant systems: reactor power changes by at most 0.2%, and gross generator output changes by 20.5 MWe from 100 MWt of TPD. The most severe malfunction analyzed in this work is a full TPD steam line break downstream of the extraction location, which results in an increase in reactor power of about 0.5%. The gross generator output decreases by 36 MWe, a total decrease of 60 MWe from the full power steady state (FPSS) condition. These results indicate that an industrial hydrogen production plant could be coupled thermally to a nuclear power plant with limited effects on the existing system operation and safety.

Suggested Citation

  • Stephen Hancock & Dylan Jurski & Thomas A. Ulrich & Roger Lew & Jisuk Kim & Olugbenga Gideon, 2025. "Simulation Results of a Thermal Power Dispatch System from a Generic Pressurized Water Reactor in Normal and Abnormal Operating Conditions," Energies, MDPI, vol. 18(2), pages 1-30, January.
  • Handle: RePEc:gam:jeners:v:18:y:2025:i:2:p:265-:d:1563335
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    References listed on IDEAS

    as
    1. Stephen Hancock & Tyler Westover, 2022. "Simulation of 15% and 50% Thermal Power Dispatch to an Industrial Facility Using a Flexible Generic Full-Scope Pressurized Water Reactor Plant Simulator," Energies, MDPI, vol. 15(3), pages 1-15, February.
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