Humankind is consuming more energy than ever before, and with this growth in consumption, researchers must develop new power technologies that will address these needs. Nuclear power remains a fast-growing and reliable sector of clean, carbon-free energy, and four researchers at the University of Pittsburgh received awards to further their work in this area.
The U.S. Department of Energy (DOE) invested more than $65 million to advance nuclear technology, announced June 16, 2020. Pitt’s Swanson School of Engineering received a total of $1,868,500 in faculty and student awards from the DOE’s Nuclear Energy University Program (NEUP).
According to the DOE, “NEUP seeks to maintain U.S. leadership in nuclear research across the country by providing top science and engineering faculty and their students with opportunities to develop innovative technologies and solutions for civil nuclear capabilities.”
“Historically, our region has been a leader in the nuclear energy industry, and we are trying to keep that tradition alive at the Swanson School by being at the forefront of this field,” said Heng Ban, Richard K. Mellon Professor of Mechanical Engineering and director of the Swanson School’s Stephen R. Tritch Nuclear Engineering Program. “I’m thrilled that the Department of Energy has recognized the innovative work from our faculty, and I look forward to seeing the advancements that arise from this research.”
The DOE supported three projects from the Swanson School.
High Temperature Thermophysical Property of Nuclear Fuels and Materials
PI: Heng Ban, Richard K. Mellon Professor of Mechanical Engineering, Director of Stephen R. Tritch Nuclear Engineering Program
Ban, a leading expert in nuclear material thermal properties and reactor instrumentation and measurements, will use this award to enhance research at Pitt by filling an infrastructure gap. He will purchase key equipment to strengthen core nuclear capability in the strategic thrust area of instrumentation and measurements. A laser flash analyzer and a thermal mechanical analyzer (thermal expansion) will be purchased as a tool suite for complete thermophysical property information.
Fiber Sensor Fused Additive Manufacturing for Smart Component Fabrication for Nuclear Energy
PI: Kevin Chen, Paul E. Lego Professor of Electrical and Computer Engineering
Co-PI: Albert To, William Kepler Whiteford Professor of Mechanical Engineering and Materials Science
The Pitt research team will utilize unique technical capabilities developed in the SSoE to lead efforts in sensor-fused additive manufacturing for future nuclear energy systems. Through integrated research efforts in radiation-harden distributed fiber sensor fabrication, design and optimization algorithm developments, and additive manufacturing innovation, the team will deliver smart components to nuclear energy systems to harness high spatial resolution data. This will enable artificial intelligence based data analytics for operation optimization and condition-based maintenance for nuclear power systems.
Multicomponent Thermochemistry of Complex Chloride Salts for Sustainable Fuel Cycle Technologies
PI: Wei Xiong, assistant professor of mechanical engineering and materials science
Co-PIs: Prof. Elizabeth Sooby Wood (University of Texas at San Antonio), Dr. Toni Karlsson (Idaho National Laboratory), and Dr. Guy Fredrickson (Idaho National Laboratory)
Nuclear reactors help bring clean water and reliable energy to communities across the world. Next-generation reactor design, especially small modular reactors, will be smaller, cheaper, and more powerful, but they will require high-assay low-enriched uranium (HALEU) as fuel. As the demand for HALEU is expected to grow significantly, Xiong’s project seeks to improve the process of recovering uranium from spent nuclear fuels to produce HALEU ingots. Part of the process involves pyrochemical reprocessing based on molten salt electrolysis. Hence, developing a thermodynamic database using the CALPHAD (Calculation of Phase Diagrams) approach to estimate the solubilities of fission product chloride salts into the molten electrolyte is essential for improving the process efficiency. The results will help in estimating the properties that are essential for improving the HALEU production and further support the development of chloride molten salt reactors.
Two Swanson School students also received awards from NEUP. Jerry Potts, a senior mechanical engineering student, received a $7,500 nuclear energy scholarship, one of 42 students in the nation. Iza Lantgios (BS ME ‘20), a matriculating mechanical engineering graduate student, was one of 34 students nationwide to be awarded a $161,000 fellowship. Swanson School students have secured 20 NEUP scholarships and fellowships since 2009.