Showing 72 results for Author: Prashant K. Jain
Aug, 2025
ORNL Report
This report provides an analysis of the financial, operational, and strategic advantages of incorporating Security-by-Design (SeBD) early in the lifecycle of nuclear power plant projects. By framing security as a foundational design element rather than a late-stage add-on, owners, vendors, and operators can reduce budget overruns, strengthen regulatory compliance, and incr…
Aug, 2025
Journal
Oak Ridge National Laboratory is collecting and characterizing aerosols released when spent nuclear fuel (SNF) rods are fractured in bending. An aerosol collection system was designed and tested to collect respirable sized (
Jul, 2025
Journal
The ongoing efforts to convert High-Performance Research Reactors (HPRRs) using Highly Enriched Uranium (HEU) to Low-Enriched Uranium (LEU) fuel require reliable thermal–hydraulic assessments of modified core designs. The involute-shaped fuel plates used in several major HPRRs present unique modeling challenges due to their compact core geometries and high heat flux condit…
Aug, 2024
Journal
Ejector-based systems are widely used for various industrial purposes, including transporting fluids, trapping particulate matters, and refrigeration. Novel design strategies can aid in the enhancement of key performance parameters such as entrainment ratio (ER) and entrained mass flow rate, resulting in an increase in energy efficiency over conventional designs. This stud…
Aug, 2024
Journal
Many energy systems demand heat transfer at high temperatures to keep up with high demand for power, so high-temperature material that can perform and last under these harsh conditions is needed for heat exchangers. The engineering requirements for these high-temperature heat exchanger material call for high thermal conductivity, high resistance to fracture, high resistanc…
Feb, 2024
Journal
Advanced manufacturing techniques and digital twin technology are rapidly transforming the nuclear industry, offering the potential to enhance productivity, safety, and cost-effectiveness. Customized parts are being produced using additive manufacturing, automation, and robotics, while digital twin technology enables the virtual modeling and optimization of complex systems…
Dec, 2023
Conference Paper
Currently efforts are underway at Oak Ridge National Lab (ORNL) to convert the High Flux Isotope Reactor (HFIR) from high enriched uranium to low enriched uranium fuel. In order to provide confidence to the thermal hydraulics calculations, computational fluid dynamics (CFD) simulations – simulated using COMOSOL – have been employed to calculate the pressure drop and heat t…
Dec, 2023
Journal
In this study, a Large Eddy Simulation (LES) of the aluminum-smelting process is performed using OpenFOAM. To understand the coupled behavior of heat transfer, mass transfer, and flow of the smelting process, a multi-physics computational fluid dynamics (CFD) model based on the Eulerian–Eulerian multi-fluid approach is adopted. The model accounts for CO2 bubble and magneto…