Completed

Completed NE Voucher Awards

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Development of Casting Techniques for ẟ-phase Uranium-Zirconium Alloys, Lightbridge Corp

The casting, processing, and shipping of HALEU alloys, like those being developed by Lightbridge, require the ability to experiment with higher temperatures in a facility that can perform these functions. The goal of this project was to identify an appropriate casting method (i.e., crucible and coating combination) that results in an acceptable impurity concentration in the as-cast ingot.

Development of Casting Techniques for ẟ-phase Uranium-Zirconium Alloys, Lightbridge Corp Read More »

Pebble Bed Large Eddy Simulations for Lower Order Methods Benchmarking and Uncertainty Quantification Development

Kairos Power is a nuclear energy technology, engineering, and manufacturing company singularly focused on the commercialization of the fluoride salt-cooled, high-temperature reactor (FHR). To simulate the core thermal hydraulic behavior, researchers employ simplified empirical correlation-based porous media and heat transfer models. For different operation and accident scenario conditions, Large Eddy Simulations (LES) can produce numerical benchmark data that capture local velocity and temperature effects. This can be used to further understand the different modes of heat transfer in an FHR core. Under this GAIN voucher, Argonne National Laboratory provided Kairos Power its expertise in LES and turbulence modeling and made available its advanced computational resources.

Pebble Bed Large Eddy Simulations for Lower Order Methods Benchmarking and Uncertainty Quantification Development Read More »

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Coupled Neutronic and Thermal Hydraulic Analysis of a Natural Circulation Based Small Modular Reactor Using VERA-CS, SMR, LLC

The objective of this project was to analyze reactor core and system behavior in response to anticipated transients and accident scenarios and to use the Virtual Environment for Reactor Applications (VERA) code suite, which employs multi-physics simulation to model feedback behavior in the reactor core.

Coupled Neutronic and Thermal Hydraulic Analysis of a Natural Circulation Based Small Modular Reactor Using VERA-CS, SMR, LLC Read More »

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Addressing Gaps in Legacy Data on Fuel Steel Interactions, Oklo, Inc.

To broaden the understanding of fuel-clad chemical interactions (FCCI), Oklo partnered with Idaho National Laboratory (INL) to conduct an out-of-pile experimental investigation into FCCI behavior that addresses each of these variables in order to expand the operating envelopes to better align with the Aurora reactor as well as other advanced concepts.

Addressing Gaps in Legacy Data on Fuel Steel Interactions, Oklo, Inc. Read More »

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Testing of I&C Sensors and Cables for Small Modular Reactors, Analysis & Measurement Services Corp

The objective of this project was to use the thermal hydraulics laboratory and vacuum test chambers at Oak Ridge National Laboratory (ORNL) for response characterization of resistance temperature detectors and thermal aging of instrumentation and control (I&C) cables in vacuum to generate more useful data for I&C cable derating purposes.

Testing of I&C Sensors and Cables for Small Modular Reactors, Analysis & Measurement Services Corp Read More »

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