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Project

Multiphysics M&S for HFIR Safety Analyses

Project Details

Principal Investigator
ORNL Image
<p><span>Temperature Distribution (</span><sup><span>o</span></sup><span>C</span><span>) of HFIR Core</span></p>

 

 

 

 

 

 

 

 

Problem Statement

Advanced three-dimensional multiphysics models are needed to perform detailed safety assessments in support of low enriched uranium conversion, 238Pu production and material irradiation activities at HFIR

Technical Approach

COMSOL Multiphysics platform is being used to couple several physics of interest including multilayer heat conduction, turbulent flow, conjugate heat transfer, oxide layer growth, thermal and irradiation swelling to predict operational safety limits

Benefit

Three-dimensional temperature and heat flux distribution help identify thermally sensitive locations (e.g., hot spots and hot streaks) and available margin to safety limits

Sponsor

DOE NNSA Material Management and Minimization (formerly RERTR) and DOE 238Pu Production Programs

Partner

High Flux Isotope Reactor,

Research Reactors Division

Contact

Interim Section Head, Advanced Reactor Engineering & Development, Nuclear Energy and Fuel Cycle Division
Prashant Jain