Nuclear News

The Department of Energy on August 19 announced several awards to research teams applying artificial intelligence and machine learning to fusion energy. The planned total funding of $21 million is targeted at projects with time frames of up to three years; $8 million in fiscal year 2020 funding has already been committed to the work. Delivery of the balance-of-project funding will depend on future congressional appropriations.

“These awards will enable fusion researchers to take advantage of recent rapid advances in artificial intelligence and machine learning,” said Chris Fall, director of the DOE’s Office of Science. “AI and ML will help us to accelerate progress in fusion and keep American scientists at the forefront of fusion research.”

The Generation IV International Forum (GIF) is hosting a free webinar on August 26 on the topic of “Molten Salt Reactor Safety Evaluation—A U.S. Perspective.”

The webinar, which is intended for policy makers, managers, regulators, students, and the general public, will start at 8:30 a.m. (EDT). Registration is required.

Kazatomprom is extending uranium production cuts. Photo: Kazatomprom

Kazatomprom, Kazakhstan’s state-owned uranium production company, will continue “flexing down” production by 20 percent through 2022, compared to the planned levels under subsoil use contracts, the company announced last week. It will also maintain its 20 percent reduction against subsoil use contracts in 2021, with no additional production planned to replace volumes lost in 2020 due to measures taken to combat COVID-19.

Kazatomprom does not expect to return to full subsoil use contract production levels until a sustained market recovery is evident and demand and supply conditions signal a need for more uranium, the company noted.

NNSA Administrator Lisa Gordon-Hagerty spoke during the agency's 20th Anniversary Celebration event that recognized milestones at the Pantex Plant. Source: NNSA

Coinciding with the 20th anniversary of the creation of the Department of Energy's National Nuclear Security Administration, NNSA administrator Lisa Gordon-Hagerty is continuing with her trip to visit NNSA’s eight laboratories, plants, and sites.

Last week, Gordon-Hagerty was at the Pantex Plant, in Amarillo, Texas, for a 20th Anniversary Celebration of the NNSA.

So far, the tour of sites, which began in July, has taken Gordon-Hagerty to the Savannah River Site in Aiken, S.C.; Sandia National Laboratories and the NNSA Albuquerque Complex in Albuquerque, N.M.; and Los Alamos National Laboratory in Los Alamos, N.M., in addition to the Pantex Plant. She is expected to complete the tour by year’s end.

This flowchart is housed in a library of Sankey diagrams at flowcharts.llnl.gov and is also available as a PDF. Source: Department of Energy/LLNL, based on EIA data

Every year, Lawrence Livermore National Laboratory releases flowcharts illustrating U.S. energy consumption and use. The flowcharts, called Sankey diagrams, allow scientists, analysts, and other decision makers to compare the contributions made by various energy sources, including nuclear power, and the end uses of those sources, including residential, industrial, commercial, and transportation markets. Taken as a series of annual snapshots, energy use trends and opportunities quickly become apparent.

This year, in addition to releasing the 2019 energy flowchart, the lab issued state-by-state energy flowcharts for 2015–2018 and carbon emissions charts for 2014–2017. It is currently at work on charts of international energy use that it hopes to release by the end of the year.

Fuel compact cross section showing dozens of individual TRISO particles.

Tristructural isotropic (TRISO) coated particle fuel is a robust, microencapsulated fuel form developed originally for use in high-temperature gas-cooled reactors (HTGRs). The particles consist of a spherical fissile kernel surrounded by several layers of pyrocarbon and a silicon carbide (SiC) layer. The particles are formed into cylindrical or spherical fuel forms using a resinated graphite matrix material for insertion into an HTGR. The kernel and coating layers together act to retain fission products within the particle during normal reactor operation and during postulated accidents; TRISO particles can maintain structural integrity at extremely high temperatures, reaching as high as approximately 1,600 °C in limiting HTGR accidents. This limits the fission product activity circulating in the helium coolant and the activity released to the environment during accidents. Acceptable performance of TRISO particles is therefore essential for reactor safety.

Undergraduate students work on the molten salt test loop at Abilene Christian University’s NEXT Lab. Photo: Jeremy Enlow/Steel Shutter Photography

Abilene Christian University (ACU) is leading a consortium called NEXTRA—the Nuclear Energy eXperimental Testing Research Alliance—with the Georgia Institute of Technology, Texas A&M University, and the University of Texas at Austin. NEXTRA was formed in spring 2019 to design, license, and commission a molten salt–fueled research reactor to be hosted on ACU’s campus in the central Texas city of Abilene. ACU and its partners recently announced funding of $30.5 million over the next three years from Abilene-based Natura Resources.

Van Hollen

Amid news stories of possible undeclared nuclear facilities in Saudi Arabia and China's involvement with them (see here and here, for instance), Sen. Chris Van Hollen (D., Md.) on August 19 led a bipartisan group of senate colleagues in sending a letter to President Trump requesting more information on the matter.

Cosigners included Sens. Rand Paul (R., Ky.), Jeff Merkley (D., Ore.), Susan Collins (R., Maine), Tim Kaine (D., Va.), and Jerry Moran (R., Kan.).

Pickering nuclear power plant

The government of Canada’s Ontario province is supporting a plan by Ontario Power Generation (OPG) to extend the life of the Pickering nuclear power plant, the province’s Ministry of Energy, Northern Development, and Mines announced recently. Currently, all six operating reactors at the facility, located in southern Ontario, are scheduled to close at the end of 2024.

Peters

Mark Peters has been named executive vice president of laboratory operations for Battelle, the company announced on August 20. He will take over for Ron Townsend, who earlier this summer announced that he plans to retire in January 2021. Peters, who has served as laboratory director at Idaho National Laboratory since October 2015, will remain in this role until his successor has been selected and is in place. He will assume his new role at Battelle following this transition at INL.

The Department of Energy is asking for input on an Energy Storage Grand Challenge (ESGC) Draft Roadmap and Request for Information (RFI) and recently extended the response deadline to August 31. While there is no “N” for nuclear in “ESGC,” nuclear is definitely part of the DOE’s plan for future energy storage technologies and integrated energy systems designed to improve the efficiency and reliability of U.S. energy markets. In fact, the House Energy and Water Appropriations Committee has called for $4 million in the Office of Nuclear Energy’s Fiscal Year 2021 budget to support energy storage.

Nawah Energy Company, in cooperation with the Abu Dhabi Transmission and Despatch Company (TRANSCO), has connected Unit 1 of the Barakah nuclear power plant to the United Arab Emirates’ power grid, according to an August 19 announcement from Nawah’s parent company, the Emirates Nuclear Energy Corporation (ENEC).

Barakah, located in the Al Dhafrah Region of Abu Dhabi, houses four 1,345-MWe APR-1400 pressurized water reactors. Unit 1 achieved first criticality earlier this month.

Horizon Nuclear Power is in talks with the U.K. government to revitalize plans to build the Wylfa Newydd nuclear power plant in northwestern Wales, the Financial Times reported last week.

Finnish energy company Fortum Power and Heat Oy has initiated an environmental impact assessment procedure for the two reactors at its Loviisa nuclear power plant with the aim of operating the units for 20 years beyond their current license expiration dates of 2027 (for Unit 1) and 2030 (for Unit 2).

Pompeo

Morawiecki

While the Enhanced Defense Cooperation Agreement grabbed more attention, it was not the only U.S.-Poland pact inked in Warsaw last week. The two countries also initialed a draft bilateral agreement to cooperate in the development of Poland’s civil nuclear power program, according to the State Department. Secretary of State Mike Pompeo met with Polish Prime Minister Mateusz Morawiecki on August 15 to discuss the partnership, in addition to other matters including the improvement of regional energy and infrastructure through the Three Seas Initiative, the department said.

The National Commission on Grid Resilience (NCGR) has released a report recommending a series of actions to better address threats to the bulk power system in the United States. While noting that “substantial progress has been made in a short time” toward improving grid resilience, the report declares that “more needs to be done, and in record time.”

The Department of Energy announced on August 14 that $5.1 million would go to the Electric Power Research Institute (EPRI) to develop modular-in-chamber electron beam welding capabilities to support reactor pressure vessel welding for NuScale Power’s small modular reactor design. The project has a total value of nearly $6.5 million, of which the DOE will provide about $5.1 million.

The Department of Energy established the Consortium for Advanced Simulation of Light Water Reactors (CASL) at Oak Ridge National Laboratory in 2010 as a national collaboration of government, academia, and industry to help the nuclear industry extend the life of the current reactor fleet and develop more efficient next-generation reactors. On August 13, ORNL issued a news release and video to celebrate the achievements of CASL, which concluded its mission in June.

PPPL physicists Raffi Nazikian (left) and Qiming Hu, with a figure from their research. Photo: PPPL/Elle Starkman

Stars contain their plasma with the force of gravity, but here on earth, plasma in fusion tokamaks must be magnetically confined. That confinement is tenuous, because tokamaks are subject to edge localized modes (ELM)—intense bursts of heat and particles that must be controlled to prevent instabilities and damage to the fusion reactor.

Researchers at the Department of Energy’s Princeton Plasma Physics Laboratory (PPPL) and at General Atomics (GA) recently published a paper in Physical Review Letters explaining this tokamak restriction and a potential path to overcome it. They have developed a new model for ELM suppression in the DIII-D National Fusion Facility, which is operated by GA for the DOE. PPPL physicists Qiming Hu and Raffi Nazikian are the lead authors of the paper, which was announced on August 10 by PPPL.