As the nuclear industry pursues a new generation of reactors to meet economic and political realities, the process for developing and qualifying new fuels and materials has come into focus. It’s clear that the 30-year development process the industry has come to expect is no longer viable, just as the economic reality of the current reactor fleet is increasingly coming under pressure from low-cost alternatives, particularly natural gas. To reduce carbon emissions while meeting ever-growing energy needs, new nuclear plants must be built soon.

The TCR program is leveraging an agile approach—one that is centered around continuously informing the process—to accelerate deployment timelines and introduce performance improvements. Image: Adam Malin, ORNL

Soon after Enrico Fermi’s Chicago Pile-­1 went critical for a brief duration in December 1942, the construction of the first continuously operating reactor, the X-­10 Graphite Reactor, was initiated in February 1943 at Clinton Engineer Works in Oak Ridge, Tenn. On November 4 of that year, a mere nine months after the start of construction, the reactor began operation. This marked the onset of what Alvin M. Weinberg referred to as “the first nuclear era,” during which many reactors of various designs and operating parameters were built and demonstrated across the United States. Forty years ago, the Fast Flux Test Facility was the last U.S. non-­light-­water reactor to reach criticality, and it has since been decommissioned.

National laboratories from Canada and the United Kingdom have developed an action plan under an existing memorandum of understanding designed to boost collaboration across the areas of clean energy, medical isotopes, waste management, and decommissioning. Canadian Nuclear Laboratories (CNL), Canada’s nuclear science and technology organization, and the National Nuclear Laboratory (NNL), the nuclear services technology provider owned and operated by the United Kingdom, announced the plan on March 4. The agreement will address shared challenges in relation to climate change, public health, and environmental stewardship.

Leningrad:Unit II-1 has been credited with a nearly 15 percent decrease in cooling water usage at the plant. Photo: Rosatom

Using a VVER-1200 reactor for Leningrad II Unit 1 has resulted in a nearly 15 percent reduction in cooling water usage at the Leningrad nuclear power plant, according to Rosatom, Russia’s state atomic energy corporation. “The design features of the new power units can significantly reduce the amount of water consumed by a nuclear power plant from natural reservoirs,” said Vladimir Pereguda, director of the plant. He credited the replacing of RBMK-1000 units with VVER-1200 ones for a decrease of 730.7 million cubic meters of seawater withdrawn from Kopory Bay, a 14.8 percent drop in 2019 compared to 2018. Kopory Bay is located in the southern part of the Gulf of Finland on the Baltic Sea. “We will continue to observe such indicators to reduce the environmental impact, since the Leningrad [plant] is gradually replacing RBMK-1000 units with VVER-1200 units,” Pereguda added.

The National Academies of Sciences, Engineering, and Medicine on February 21 released its fourth and final report on its review of possible approaches to treating low-­activity waste at the Hanford Site. The Department of Energy plans to vitrify approximately 56 million gallons of radioactive and chemical waste at the Waste Treatment and Immobilization Plant, which is currently under construction at Hanford. The waste will be separated into high-­level waste and low-­activity waste (LAW) streams before being turned into a solid glass form through vitrification. Not all of the LAW, however, will be vitrified, and the DOE has not determined a treatment method for the excess waste, called supplemental LAW (SLAW).

A report released to the public on February 20 by the Government Accountability Office concluded that maintenance inspections at several contaminated excess facilities at the Department of Energy’s Hanford Site, near Richland, Wash., have not been comprehensive and that there are areas of some facilities that personnel infrequently or never enter, either physically or by remote means, to conduct inspections. The GAO reviewed surveillance and maintenance (S&M) requirements and activities at 18 of Hanford’s approximately 800 excess facilities that require cleanup and found that improvements to the site’s S&M program are needed.

David Gandy, the senior technical executive for nuclear materials at the Electric Power Research Institute, is charged with leading a project to lower the costs and manufacturing time for small modular reactors and advanced reactors. The Department of Energy–funded project is led by EPRI, and its collaborators include the United Kingdom–based Nuclear Advanced Manufacturing Research Center and Oregon-based reactor developer NuScale Power. The testing has focused on producing the upper and lower pressure vessel assemblies for NuScale’s 60-megawatt SMR.

Gandy said that the project team has already produced a 3,650-pound reactor upper head at 44 percent scale and has made other components as heavy as 7,000 pounds. Over the next two years, if the tests still to be conducted are successful, EPRI plans to transfer the technologies to other reactor manufacturers. Gandy expects these new technologies to be available in about five to seven years, once the testing is completed and the necessary approvals are obtained from the Nuclear Regulatory Commission and ASME.

Gandy talked about the project with Nuclear News Editor-in-Chief Rick Michal.

OSU Student Section Faculty Advisor Samuel Briggs accepted a certificate from ANS President Marilyn Kray (foreground). From left to right, section officers pictured are Matthew Hageman, Andrew Ritacco, Brandon Kamiyama, Taighlor Story, Lucia Gomez-Hurtado, Elizabeth Jurgensen, Maren Arneson, and Stephanie Juarez.

The ANS Oregon State University (OSU) Student Section hosted a 50th anniversary celebration on March 3 with ANS President Marilyn Kray as their guest.

“The officers did an amazing job and deserve all the credit for organizing a very successful 50th anniversary event,” said Samuel Briggs, an assistant professor in OSU’s School of Nuclear Science and Engineering (NSE) and the student section’s faculty advisor.

Following a dinner that featured a slideshow of historic OSU photos, students had a chance to pose questions to an expert panel. Kray took part in the panel together with NSE Emeritus Professor and ANS Past President Andrew Klein (2016–2017), NSE School Head and Professor Kathy Higley, and NSE Associate School Head and Professor Wade Marcum. They were asked about future obstacles and prospects for the nuclear industry, public outreach and advocacy, and nuclear engineering career development. “Local members asked some great questions of the panel—even I learned something!” Briggs said.

The United States is pursuing the objective to land humans more than 100 million miles away on Mars, and nuclear power has the potential to be a key technology in getting to the Red Planet and providing power while there. Specifically, nuclear thermal propulsion (NTP) is a promising approach that could enable astronauts to travel from Earth’s orbit to Mars and back in a fraction of the time, and with greater safety, than is available with other options.

An overhead view of the inside of Vogtle-4's containment vessel in February. Photo: Georgia Power

Georgia Power, primary owner of the Vogtle nuclear plant near Waynesboro, Ga., has ordered the first nuclear fuel load for Vogtle-4, completing the initial fuel order necessary for the startup of the reactor, as well as its twin, Unit 3, the company announced on March 5.

When Navigating Nuclear’s latest virtual field trip (VFT) debuted online in February during Engineers Week, students in classrooms around the country learned about nuclear advancements happening right now at Idaho National Laboratory, on technologies including advanced reactors, TRISO fuel, and space power systems. The video, titled “Nuclear Reimagined,” highlights diverse applications of nuclear technology and career opportunities in the nuclear sector and puts a spotlight on the work of ANS members Heather Chichester, Paul Demkowicz, and Stephen Johnson at INL.

The third Strategic Dialogue on Energy between government officials from Poland and the United States was held on February 26 as a way to extend the nations’ advanced nuclear energy cooperation. U.S. Secretary of Energy Dan Brouillette met with Piotr Naimski, Poland’s secretary of state in the chancellery of the prime minister and plenipotentiary for strategic energy infrastructure, and Poland’s Minister of Climate Michal Kurtyka at the Department of Energy headquarters in Washington, D.C. In a DOE press release, Brouillette acknowledged the U.S. nuclear industry’s continued interest in providing clean, reliable, and resilient nuclear energy to Poland as a means to strengthen their energy security. In a post on Twitter, Kurtyka described the meeting as “fruitful.”

Novich (left) and Renfrow (right)

Kaelee Novich, a senior at Boise State University, and Robert Renfrow, a junior at Lipscomb University, have been selected to participate in the 2020 Washington Internships for Students in Engineering (WISE) program with the sponsorship of ANS. Both students are majoring in mechanical engineering.

Novich and Renfrow will join students sponsored by other engineering organizations for nine weeks, from May 31 until August 1, in Washington, D.C. While there, they will meet with leaders in the U.S. Congress, the administration, and federal agencies, including the Department of Energy’s Office of Nuclear Energy and the Nuclear Regulatory Commission. Each intern will conduct research and present a paper on an engineering-related public policy issue of interest to their sponsoring organization. The papers will be published online in the WISE Journal of Engineering and Public Policy.

As nuclear power plants age and retire from service, many countries face significant challenges concerning the safe long-term storage and disposal of large volumes of low- and intermediate-level radioactive wastes (L&ILW). In Canada, Ontario Power Generation (OPG) is currently in the process of obtaining regulatory approval for a deep geological repository (L&ILW DGR) for such wastes from decommissioning and refurbishment of its heavy water reactors. OPG is exploring innovative methods and technologies to improve safety and reduce the processing, transportation, and disposal costs of these wastes. The volumes of metallic waste are of particular concern, because when metal corrodes it produces hydrogen that could lead to pressure buildup in the L&ILW DGR.

Heavy water is used both for moderating nuclear fission and transporting heat in CANDU reactors. As a result of heavy water use in these systems, tritium is produced in small quantities from thermal neutron activation of deuterium. The presence of tritium in the heavy water contributes to the radiation dose of the reactor staff and radioactive emission from the reactor facility. Tritium dose is usually controlled through design and operating procedures that minimize leaks and limit exposure to the tritiated water. Many of the CANDU operators have also reduced the operational tritium concentration through detritiation of the heavy water from the reactor. Detritiation is carried out in a centralized facility, such as the Tritium Removal Facility in Darlington, which provides this service to Ontario’s nuclear reactor fleet. Detritiation reduces both tritium emission and dose to workers and the public from reactor operation.

Lesson plans for middle school and high school students make up only one part of the compelling nuclear science education resources that Navigating Nuclear offers for today’s classrooms. ANS’s K–12 curriculum reaches students with virtual field trips (see article that begins on page 1), career resources, and STEM project starters to get students excited about nuclear science and its applications.

Alyse Huffman is the 2019 ANS Congressional Fellow

During my time on the Energy Subcommittee of the House Committee on Science, Space, and Technology, I’ve had the pleasure of covering a wide variety of issues. The jurisdiction of the subcommittee includes nonmilitary research, development, demonstration, and commercial application activities at the Department of Energy. My portfolio covers issues in the energy and water nexus, geothermal energy, water power technologies, nuclear energy, geoengineering, biological and environmental research (including low-dose radiation research), and nuclear physics. I’ve led the committee’s staff work in these areas, which has included writing legislation and shepherding bills through committee markups and the legislative process. In addition, I’ve been the staff lead on hearings and have held countless meetings with stakeholder groups on clean energy topics.

In its report for fiscal year 2019, published in February, the Nuclear Regulatory Commission’s Office of Investigations (OI) shows a total case inventory that continues its downward trend: OI reported 160 cases in FY 2019, down 18 percent from 195 in FY 2018. The number of cases in 2015, 2016, and 2017 were 235, 231, and 209, respectively.

Exelon Generation’s Peach Bottom-2 and -3, located in Delta, Pa., have joined Florida Power & Light Company’s Turkey Point-3 and -4 as the only U.S. nuclear reactors licensed to operate for a total of 80 years.

On March 5, the Nuclear Regulatory Commission issued subsequent license renewals to Exelon for the Peach Bottom boiling water reactors, with expiration dates of August 8, 2053, for Unit 2, and July 2, 2054, for Unit 3. The FPL units received their first--in--the-nation SLRs last December (NN, Jan. 2020, p. 15).

The Nuclear Regulatory Commission is issuing a proposed interpretation of its low-­level radioactive waste disposal regulations that would permit licensees to dispose of waste by transfer to persons who hold specific disposal exemptions. The NRC said that it will consider approval of requests for specific exemptions only if they are for the disposal of very low-­level radioactive waste by land burial. Notice of the proposed interpretive rule was published in the March 6 Federal Register.