Modeling & Simulation Archives

Future Climate Projections for Dry and Wet Condenser Cooling Options

This project will evaluate potential climate impacts in the northwestern United States from climate models and use those results to model plant performance using various cooling options. The results will be used to determine the range of plant performance and cost distributions to help understand the factors that need to influence the selection of a ultimate heat sink for a nuclear reactor in the region.

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Improvements to Passive Heat Removal Systems in SAS4A/SASSYS-1

For this project, ARC will work with Argonne National Laboratory (ANL) to enhance the SAS modeling capabilities for passive heat removal systems, including the generic RVACS model and the DRACS heat exchanger models. These enhancements will enable ARC to recover safety margins and have a better representation of the system’s response during long-term cooling events.

Improvements to Passive Heat Removal Systems in SAS4A/SASSYS-1 Read More »

Independent Code-to-Code Verification of Aalo-1 Fuel and Core Performance

Aalo will partner with Idaho National Laboratory (INL) to perform independent analyses on fuel performance using the BISON code as well as thermal-hydraulics using RELAP5-3D. This work will support the independent code-to-code verification to support Aalo’s future licensing efforts.

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Salt to Metal to Salt Heat Transfer in Narrow Fuel Pins

The objective of this project is to understand heat transfer for the novel molten fuel salt pin in a molten salt core concept. Heat transfer due to natural convection driven flow is a very complex phenomenon owing to the range of active length scales.

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Dynamic Natural Convection System, Dynac Systems LLC

This Gateway for Accelerated Innovation in Nuclear voucher paired DYNAC Systems with Idaho National Laboratory to evaluate the company’s Dynamic Natural Convection (DNC) system.

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An Advanced Multiphysics Simulation Capability for Radiant’s Microreactor Design and Shielding Analysis, Radiant Industries Inc.

The objective is to integrate the core and shielding analysis tools in order to design a safe and economically viable microreactor.

An Advanced Multiphysics Simulation Capability for Radiant’s Microreactor Design and Shielding Analysis, Radiant Industries Inc. Read More »

Support for Analysis of USNC Micro Modular Reactor Fuel Performance, Ultra Safe Nuclear Corp.

This project will include the analysis of fuel performance under Micro Modular Reactor (MMR) operating conditions and assess if using recycled uranium in Fully Ceramic Microencapsulated (FCM) fuel is viable.

Support for Analysis of USNC Micro Modular Reactor Fuel Performance, Ultra Safe Nuclear Corp. Read More »

Modeling of Two-Phase Boiling Flow and Critical Heat Flux with the Star-CCM+® and NEK-2P CFD Codes, Framatome Inc.

This project focuses on the development, implementation, and initial validation of the STAR-CCM+® user-defined functionality for the two-fluid two-phase model (2F-2P). The focus will be on modeling two-phase boiling flow in realistic fuel-bundle geometries, including specific spacer geometries.

Modeling of Two-Phase Boiling Flow and Critical Heat Flux with the Star-CCM+® and NEK-2P CFD Codes, Framatome Inc. Read More »

Microreactor Control Drum Failure Simulation, Radiant

The objective of this project is to couple Serpent and Griffin to enable a thermal-hydraulics and neutronics multiphysics model of the transient scenario which will accelerate Radiant’s reactor design process.

Microreactor Control Drum Failure Simulation, Radiant Read More »

Advanced Nuclear Fuel Pellet Designs, Exelon Nuclear

The objective of this project is to explore a number of advanced heterogenous fuel design concepts to improve the operational, safety, and economic performance of existing power plants.

Advanced Nuclear Fuel Pellet Designs, Exelon Nuclear Read More »