BWXT restarts TRISO fuel manufacturing

Baranwal

Rita Baranwal, the Department of Energy’s assistant secretary for the Office of Nuclear Energy, announced today via Twitter that she will be leaving her position at the end of the day. “It has been an absolute honor to serve in this capacity to help advance our U.S. nuclear energy R&D,” she tweeted. “I plan to continue to use my talents to promote, lead, and advance our nation’s largest source of clean energy so that our nation and my family will have a cleaner and more sustainable planet to protect.”

Baranwal previously directed the Gateway for Accelerated Innovation in Nuclear (GAIN) initiative at Idaho National Laboratory. Before joining the DOE, Baranwal served as director of technology development and application at Westinghouse. She is a Fellow of the American Nuclear Society.

Here is a look back at the top stories of 2020 from our Waste Management section in Newswire and Nuclear News magazine. Remember to check back to Newswire soon for more top stories from 2020.

Waste Management section

• First-ever cleanup of uranium enrichment plant celebrated at Oak Ridge: The completion of the decades-long effort to clean up the former Oak Ridge Gaseous Diffusion Plant was celebrated on October 13, with Energy Secretary Dan Brouillette joining U.S. Sen. Lamar Alexander, U.S. Rep. Chuck Fleischmann, Tennessee Gov. Bill Lee, and other state and community leaders at the East Tennessee Technology Park, where the uranium enrichment complex once stood. Read more.

The final text of the approximately 5,600-page Consolidated Appropriations Act 2021 was released on December 22. While the timing of final passage is still fluid, the Senate was expected to approve it and send it on to President Trump to sign into law, according to John Starkey, American Nuclear Society government relations director.

Below are some key funding highlights from the legislation pertaining to nuclear energy.

The Department of Energy today announced $30 million in initial fiscal year 2020 funding—with the expectation of more over the next seven years—for five companies selected for risk reduction for future demonstration projects. The chosen reactor designs from Kairos Power, Westinghouse, BWX Technologies, Holtec, and Southern Company collectively represent a range of coolants, fuel forms, and sizes—from tiny microreactors to a molten salt reactor topping 1,000 MWe. They were selected for cost-shared partnerships under the Office of Nuclear Energy’s Advanced Reactor Demonstration Program (ARDP) through a funding opportunity announcement issued in May 2020.

“All of these projects will put the U.S. on an accelerated timeline to domestically and globally deploy advanced nuclear reactors that will enhance safety and be affordable to construct and operate,” said Energy Secretary Dan Brouillette. “Taking leadership in advanced technology is so important to the country’s future, because nuclear energy plays such a key role in our clean energy strategy.”

An aerial view of the ETTP site. Photo: Heritage Center, LLC

Kairos Power plans to site a test reactor it has dubbed Hermes at the East Tennessee Technology Park (ETTP) in Oak Ridge, Tenn. The company has executed a Memorandum of Understanding with Heritage Center, LLC, to acquire the former K-33 gaseous diffusion plant site at ETTP, subject to ongoing due diligence evaluations. The announcement was made today, during the 2020 East Tennessee Economic Council Annual Meeting and Awards Celebration.

“We are thrilled at the prospect of coming to East Tennessee,” said Michael Laufer, cofounder and chief executive officer of Kairos Power. “The infrastructure available at ETTP, combined with its proximity to key collaborators at the Oak Ridge National Laboratory, makes this a great location to demonstrate our technology. The successful commissioning of Hermes builds on our current technology development programs and extensive engagement with the U.S. Nuclear Regulatory Commission. Ultimately, Hermes will prove that Kairos Power can deliver real systems at our cost targets to make advanced nuclear a competitive source of clean energy in the United States.”

Lou Martinez, vice president of strategy and innovation, added, “Today is an important day for Kairos Power. We are celebrating our 4th anniversary by showcasing an important milestone.”

As a result of last month’s power uprate announcement from NuScale Power regarding its small modular reactor—a 25 percent increase to 77 MWe—the company has now announced updated evaluations for the technical feasibility and economics of producing hydrogen using heat and electricity from its SMR, the NuScale Power Module (NPM).

INL will need technical, innovative, and safety-minded construction personnel for the advanced nuclear projects ahead. Photo: INL

Around the world, researchers in the energy industry are engaging in the work of studying, testing, and developing carbon-free energy solutions. Throughout these circles, many scientists and engineers are embracing the possibilities of advanced nuclear technologies, including small modular reactors and microreactors. While these innovative technologies are poised to address some of the nation’s biggest concerns, they also present their own unique challenges, including the need for a large and talented workforce within the construction industry.

Fortunately, the state of Idaho and its key nuclear players are well-equipped for this challenge. In southeastern Idaho, home of Idaho National Laboratory, strong partnerships throughout the region have forged networks between the lab and the educational institutions, employers, trades, and unions that are working to establish this highly specialized nuclear talent pipeline.

Fabricated yttrium hydride samples are pulled out of the system. Photo: ORNL

Oak Ridge National Laboratory scientists have developed a method to produce solid yttrium hydride for use as a moderator for the Transformational Challenge Reactor (TCR), a 3-MWt additively manufactured microreactor that ORNL aims to demonstrate by 2023. Lacking a commercial supply of the metal hydride, ORNL scientists developed a system to produce yttrium hydride in large quantities and to exacting standards.

The hydrogen density and moderating efficiency of metal hydrides—which combine a rare earth metal with hydrogen—could enable smaller reactor cores that can operate more efficiently and reduce waste products, according to ORNL. The material could be used in other advanced reactor designs, including space power and propulsion systems for NASA, and has been proposed as a shield component for thermalization and neutron absorption in fast-spectrum nuclear reactors.

Illustration of a Mars transit habitat and nuclear electric propulsion system. Image: NASA

NASA aims to develop nuclear technologies for two space applications: propulsion and surface power. Both can make planned NASA missions to the moon more agile and more ambitious, and both are being developed with future crewed missions to Mars in mind. Like advanced reactors here on Earth, space nuclear technologies have an accelerated timeline for deployment in this decade.

Space nuclear propulsion and extraterrestrial surface power are getting funding and attention. New industry solicitations are expected this month, and a range of proposed reactor technologies could meet NASA’s specifications for nuclear thermal propulsion (NTP). Nuclear electric propulsion could increase the feasibility of crewed missions to Mars with a shorter transit time, a broader launch window and more flexibility to abort missions, reduced astronaut exposure to space radiation and other hazards, expanded payload mass capabilities, and reduced cost.

Darlington nuclear generating station. Photo: OPG

Ontario Power Generation, its subsidiary Laurentis Energy Partners, and BWXT ITG Canada and its affiliates announced on September 24 that the companies are making “significant progress” toward the production of molybdenum-99 at OPG’s Darlington nuclear power plant. Darlington will become the first commercial operating nuclear reactor to produce the medical radioisotope.

A precursor to technetium-99m, Mo-99 is used in more than 40 million procedures a year to detect cancers and diagnose various medical conditions.