Past Voucher Award Recipient Archives

Investigating Moisture Carryover Behavior

Constellation proposes to partner with Oak Ridge National Laboratory (ORNL) to apply high-fidelity multiphysics modeling and high-performance computing to improve predictive understanding of MCO phenomena. ORNL will utilize the Virtual Environment for Reactor Applications (VERA) and complementary computational fluid dynamics simulations to analyze historical operating cycles and identify core- and bundle-level mechanisms driving carryover.

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Uncertainty Quantification and Sensitivity Analysis Support

NANO proposes to partner with Oak Ridge National Laboratory (ORNL) to apply the SCALE/TSUNAMI code suite to quantify the impact of nuclear data, modeling assumptions, and operational parameters on key reactor physics metrics, including reactivity, power distribution, and temperature coefficients. ORNL’s NRC-recognized analytical tools and expertise will enable development of a validated UQ framework tailored to the KRONOS design.

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Verification of Autonomous Operation and Remote Monitoring Capabilities

NuCube proposes to partner with Argonne National Laboratory (ANL) to verify an autonomous control architecture using a Digital Twin of the DeccaCell reactor. ANL will adapt its existing autonomous operation and diagnostics framework to demonstrate automated startup, remote monitoring, islanding-mode transitions, and predictive maintenance within a validated simulation environment. The project will generate a technically defensible basis for reduced staffing models and support future DOE and NRC licensing engagement.

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High-Temperature Pipe Wall-Thickness Detection System

Nuclear AI will partner with Pacific Northwest National Laboratory (PNNL) to utilize the capabilities for the Nondestructive Evaluation Unit of the Engineering Materials group. PNNL will use high-temperature furnace infrastructure, ultrasonic PZT sensor components, and high precision prototyping equipment to demonstrate the efficacy of a high temperature pipe wall thickness detector. The ability to perform inspections and vet structural integrity at these temperatures would support advanced reactor inspection programs for piping and vessel components.

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Development of High-Purity Graphite Matrix for Nuclear TRISO Fuel

Orbia Fluor will partner with Oak Ridge National Laboratory (ORNL) to produce and test Orbia produced purified graphite feedstock for use in nuclear applications. ORNL has unique capabilities for TRISO relevant graphite matrix fabrication, machining, and nuclear materials testing under qualified procedures. Under this project, Orbia will produce purified feedstock powders and graphite matrix with the support of ORNL and then ORNL will test the produced graphite to assess the viability of meeting nuclear standards. This work will help build domestic capabilities to purify graphite feedstock for nuclear energy.

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Modeling of Realistic Spatially Resolved 3D TRISO Particles in Compact

Idaho National Laboratory (INL) has developed state-of-the-art modeling and simulation tools for advanced TRISO particle-based fuels using BISON code. AT will partner with INL to extend the BISON fuel-performance code so it can practically model 3D TRISO particle distributions in UCO TRISO compacts, capturing particle–particle and particle–matrix interactions needed for supporting commercial operations of BWXT’s TRISO fuel for the nuclear industry.

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AI-Guided Fuel Management for a 12-Unit Small Modular Nuclear Plant

NuScale will partner with Oak Ridge National Laboratory (ORNL) to utilize the artificial intelligence (AI) enabled nuclear design framework for the 12-reactor design challenge by strategically exploring the vast design space and reducing the computational time required for the reactor simulations. ORNL has significant expertise in AI, fuel management, and computational resources. Reduced front end and back-end fuel costs can make nuclear energy more competitive in the marketplace.

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EnergyHQ Advanced Nuclear Reactor and Data Center Colocation

EnergyHQ will partner with Oak Ridge National Laboratory (ORNL). The project will use the Oak Ridge Siting Analysis for power Generation Expansion (OR-SAGE) tool to supplement EnergyHQ’s existing criteria for siting data centers. The result will be the identification of multiple sites, which are technology-agnostic, that could support site selection strategies for data centers. EnergyHQ can then work to develop those sites for nuclear and data center development.

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Adding Nuclear to the Mix: Feasibility Study

CSU will partner with Idaho National Laboratory (INL) for techno-economic analysis with decision modeling and with Oak Ridge National Laboratory (ORNL) for the water availability and optimal usage analyses. The study will also assess the feasibility and application of small modular reactors (SMRs) in the CSU service territory.

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Recycling Nuclear Waste into a Strategic Asset

Zeno will partner with Argonne National Laboratory (ANL) to demonstrate the capabilities of a pyro-aqueous hybrid strontium separation process to provide technical data for Zeno to explore scale up in support of Zeno’s RPS designs. ANL’s Chemical and Fuel Cycle Technologies (CFCT) division have extensive experience in developing separation technologies for UNF recycling, in addition to medical isotope separation and purification. This project will generate successful flowsheet development to reduce the volume, heat load, and cost for UNF.

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