| Project Detail |
The U.S. has accumulated approximately 86,000 metric tons of used nuclear fuel (UNF) from light-water reactors (LWRs), a value that increases by approximately 2,000 tons per year. This UNF is destined for permanent disposal even though more than 90% of its energy remains. Innovative technologies that enable the secure, economical reprocessing of the nation’s LWR UNF could substantially reduce the volume, heat load, and radiotoxicity of waste requiring permanent disposal while providing a valuable and sustainable fuel feedstock for advanced fast reactors. CURIE seeks to research innovative separations technologies, material accountancy, and online monitoring technologies, as well as designs for a reprocessing facility that will enable group recovery of actinides for advanced reactor (AR) feedstocks, incorporate in situ process monitoring, minimize waste volumes, enable a 1¢/kilowatt-hour (kWh) fuel cost for AR fuels, and maintain disposal costs in the range of 0.1¢/kWh.
Project Innovation + Advantages:
The University of North Texas (UNT), University of Michigan, Northeastern University, General Electric Research Center, and Idaho National Laboratory are researching a novel self-powered wireless differential pressure sensor for long-term, in situ, real-time monitoring of high-temperature (600 ºC) molten salt density and level for safeguarding and monitoring electrochemical processing of nuclear spent fuel. The team will use micro-electromechanical systems technology to fabricate the pressure sensor which enables measurements of great sensitivity, accuracy and high repeatability. To provide unlimited power for the sensor and wireless transceiver, a thermoelectric generator will be directly printed on the electrorefiner housing using laser additive manufacturing to scavenge the waste heat energy. The elimination of the long wires will result in significant cost savings, low maintenance, and much longer service life. This sensing technology will improve materials accountancy and associated verification activities that are key to safeguards implementation.
Potential Impact:
By enabling the secure and economical recycling of the nation’s inventory of LWR UNF, CURIE will have the following impacts: |
