Seth Kofi Debrah: Ghana’s nuclear plans

March 8, 2024, 3:11PMNuclear News

The continent of Africa and the 54 countries that share the land are an emerging force that will hold growing influence in the world’s economy by the end of this century. Throughout history, the world’s leading economies have been driven by large working-age populations, but the shift in demographics over the next 50 years will bring drastic changes to the global economy. As reported last year by the New York Times, most of the youngest countries in the world are in Africa (south/southeastern Asia and the Middle East being the other regions with young populations). This means that by 2050 and beyond, the countries with the largest working-age populations will be very different from the top economies today. The African Union understands these changes are coming and is working toward its Agenda 2063, the “master plan for transforming Africa into a global powerhouse of the future.”

What is involved in radiation protection at accelerator facilities?

February 29, 2024, 3:03PMNuclear NewsIrina Popova

Irina Popova

Particle accelerators have evolved from exotic machines probing hadron interactions to understand the fundamentals of our world to widely used instruments in research and for medical and industrial use. For research purposes, high-power machines are employed, often producing secondary particle beams through primary beam interaction with a target material involving many meters of shielding. The charged beam interacts with the surrounding structures, producing both prompt radiation and secondary radiation from activated materials. After beam termination, some parts of the facility remain radioactive and potentially can become radiation hazards over time. Radiation protection for accelerator facilities involves a range of actions for operation within safe boundaries (an accelerator safety envelope). Each facility establishes fundamental safety principles, requirements, and measures to control radiation exposure to people and the release of radioactive material in the environment.

Wayne Newhauser: A study on the professional radiation workforce

February 9, 2024, 1:11PMNuclear News

Newhauser

Wayne Newhauser is a professor and the Charles M. Smith Chair of Medical Physics at Louisiana State University. Newhauser and Georgia Tech’s Shaheen Dewji—both longtime American Nuclear Society members—worked on a multiyear study that looked at workforce issues for six of the most important radiation professions.

An article authored by Newhauser and Dewji that looks in-depth at the study will be published at a later date in Nuclear News.

Newhauser sat down with NN editor-in-chief Rick Michal to talk about the study and its findings, published last year in the Journal of Applied Clinical Medical Physics.

How was the BWRX-300 designed to keep construction costs in check?

January 8, 2024, 3:00PMNuclear NewsDennis Henneke

Dennis Henneke

The BWRX-300 is the 10th generation of boiling water reactor designed by GE Hitachi and has a number of evolutionary features. We learned from the design of the Economic Simplified Boiling Water Reactor (ESBWR), the BWRX-300’s predecessor, that implementation of a plant design that utilizes passive safety features can result in a relatively large containment. From the inception of the BWRX-300, our goal was simplification of the design and the reduction in overall size of the “safety footprint,” which includes both containment and the safety-related--component plant areas. The design team was empowered to consider any and all simplification efforts, which were evaluated by the GEH team. One key to implementing this goal—design of a plant that can be licensed anywhere in the world—is the use of a probabilistic risk assessment (PRA) that helps ensure the resulting plant risk is low.

How do national labs help move nuclear technologies to deployment?

December 6, 2023, 7:06AMNuclear NewsHussein Khalil

Hussein Khalil

Within the next decade, it is expected that the first round of advanced reactor (AR) demonstration units will be successfully started up and operated, with additional industry-led nuclear energy initiatives progressing toward demonstration. These AR prototypes will be first-of-a-kind systems incorporating significant technological advances. Attracting the required investment for construction and operation will require persistent efforts to improve performance, reduce costs, attract an investor/-customer base, and establish the supply chain and workforce needed to meet this emerging demand.

Public-private partnerships focused on technology and design advancements will likely be needed through at least 2050. These partnerships will require the research community—and the national labs in particular—to play a key role in developing technical solutions for economically competitive systems and helping address other challenges to sustained and expanded use of nuclear energy. These challenges include managing used nuclear fuel, minimizing nuclear security and proliferation risks, and pursuing international markets.

How is consent-based siting changing the prospects for used fuel management?

November 21, 2023, 7:00AMNuclear News

Patrick O’Brien

As someone who grew up in a community with an operating nuclear plant—Pilgrim Nuclear Power Station, in Plymouth, Mass., on Cape Cod Bay—I had the luxury of a more thorough education on what nuclear power was (and what it wasn’t) from an early age. Unfortunately, growing up in the 1980s and ’90s, many of my contemporaries were not as lucky; their education on nuclear power came from The Simpsons.

While it is a show that influenced a generation in many ways, its portrayal of the nuclear industry had no basis in reality. Nuclear workers are among the most professional and highly trained people in the world. The standards by which used fuel and waste are handled and stored are some of the strictest of any industry. I have found, after nearly a decade in the nuclear industry, that the first thing I must help the public, media, and even elected officials understand is that used nuclear fuel is not green goo in a barrel, but a solid pellet stored safely in robust dry storage casks. Providing the facts—the science and technology—is the key to helping people understand a complex industry. Doing so in simple terms can help demystify nuclear power.

A Q&A with NRC chair Christopher Hanson: The successes and challenges of his first term

November 3, 2023, 3:15PMNuclear News

Hanson

The U.S. Nuclear Regulatory Commission is in a difficult position. The commission must manage competing pressures from those who think it overburdens the nuclear industry and needs to move more quickly to respond to the changing regulatory landscape, and from those who think it is too cozy with the industry it’s tasked with regulating. This is a common theme all regulators face, and was one theme of the discussion with the NRC chair, Christopher Hanson.

Hanson was designated chair of the NRC in January 2021 by President Joe Biden and has since wrestled with this dilemma as the person responsible for conducting the administrative, organizational, long-range planning, and budgetary functions of the agency.

NN Asks: What defines an effective plant maintenance training program?

October 30, 2023, 3:00PMNuclear News

Doug Barber

Xcel Energy was the first utility to commit to carbon-free operations by 2050, with an 80 percent reduction by 2030. To achieve this important goal, we recognized that we would have to think and act in innovative ways. This mindset is highlighted in our approach to plant maintenance. In 2019, Xcel created a unique unified learning organization. This approach has leveraged nuclear and nonnuclear expertise and training resources to improve craft skills, address long-term equipment reliability vulnerabilities, implement strategic initiatives, and improve sharing of resources—all of which has improved plant performance.

Xcel Energy’s unique approach has been proven successful in back-to-back Institute of Nuclear Power Operations Maintenance and Technical Training renewals at each of its plants with strengths directly attributed to our unified enterprise and nuclear learning approach, which ensures a focus on nuclear excellence, technician effectiveness, and business efficiency.

NN Asks: What inspired you to work in the nuclear fuel cycle?

September 28, 2023, 11:44AMNuclear News

Jessica Woynerowski

As a student, I had the opportunity to tour Urenco USA in Eunice, N.M.—the only commercially operated uranium enrichment facility in the United States. Seeing a fuel cycle facility for the first time and learning about the centrifugal technology used to separate U-235 from U-238 was enriching (pun intended). In the nuclear utility sector, where I am currently working as a core design engineer, the focus is on creating safe, reliable, carbon-free nuclear energy; too often, however, we miss out on other key players in the nuclear fuel cycle.

As a visiting student, I listened to the introductions, the tour guides, the operators, and the engineers at Urenco, and I was hooked. It was so different from what I learned in college about commercial reactors. I was so fascinated with how Urenco operated and their role in the nuclear industry that I started my career there in 2016. The company did an incredible job educating their personnel not only on their processes but also on the work of other fuel cycle facilities (mining, conversion, and fabrication, to name a few).

From lab to reactor: Scaling up advanced manufacturing for fuels and more

September 8, 2023, 3:01PMNuclear News

Wagner

Rufner

Advanced manufacturing is more than just additive manufacturing, as Jorgen Rufner and Adrian Wagner—both group leads at Idaho National Laboratory—would be quick to point out. Researchers at INL have been working with additive manufacturing (that’s 3D printing, colloquially) for decades. These days, INL boasts the largest industrial-scale electric field -assisted sintering (EFAS) machine of its kind and four other EFAS systems, including one coupled with a glove box for work with radioactive materials. That equipment and more can make samples, fuels, and components for both light water reactors and advanced reactors and for both publicly and privately funded programs.

NN Asks: How are universities approaching nuclear workforce issues?

August 29, 2023, 7:01AMNuclear NewsJohn Mobley IV

John Mobley IV

With the release of the U.S. Department of Energy’s Pathways to Commercial Liftoff: Advanced Nuclear report this past March, there have been considerable discussions as to the multifaceted roles and responsibilities of universities in this epoch of renewed interest in nuclear energy. In particular, the imperative of securing an estimated 375,000 additional individuals for the construction and operation of 200 gigawatts of advanced nuclear reactors by 2050 is a significant endeavor that is front of mind for educational practitioners and policymakers. An understanding that the challenges in meeting the projected workforce needs of the nuclear community rely on dynamic, responsive, and innovative solutions thus is contingent on enhanced recruitment, retention, and development. To this point, a threefold approach of (1) IDEA (inclusion, diversity, equity, accessibility) initiatives, (2) AGI (academia-government-industry) partnerships, and (3) gap analysis offers a promising avenue for addressing these issues.

A conversation with Grace Stanke, Miss America 2023

August 24, 2023, 12:06PMNuclear NewsJames Conca

“I see nuclear energy as the obvious path forward, and it confuses me as to why everybody else doesn’t. That’s the primary goal with my Miss America policy platform of ‘clean energy, cleaner future.’”

Recently I sat down with Grace Stanke, the current Miss America and a student at the University of Wisconsin in nuclear engineering exploring subjects like nuclear fuel enrichment and reactor performance (as well as being a virtuoso violinist, for good measure).

This year she’s touring the country advocating for clean energy in a cleaner future and for America to reach net zero with the help of nuclear power, while correcting misconceptions and improving communication about nuclear science and encouraging young women to pursue STEM careers.

We talked just after she had finished visiting the Hanford Site while she was on her way to appear at Town Hall Seattle at the request of grassroots pronuclear group Friends of Fission Northwest. I was impressed with the depth of her knowledge and her ability to communicate difficult issues in a concise manner that didn’t require any deep background to understand. I mean, who knows the intricacies of the Waste Isolation Pilot Plant? I was tempted to ask her to run for president.

Leading DRACO to launch: An interview with DARPA’s Tabitha Dodson

July 28, 2023, 2:59PMNuclear NewsSusan Gallier

Sometimes, even with decades of research and testing, a project never gets off the ground. That has been the case for U.S. nuclear thermal rockets—so far. Research began in the 1950s and peaked with a series of rigorous ground tests for NERVA—the Nuclear Engine for Rocket Vehicle Applications—before the program was canceled in 1973. Five decades on, this technology has yet to make it to the launchpad. But while mission priorities shift, the physics is solid: Fission-powered nuclear thermal rockets (NTRs) still offer two to five times greater efficiency than conventional rockets.

What is at the forefront of PRA today?

July 20, 2023, 3:00PMNuclear NewsAskin Guler Yigitoglu

Probabilistic risk assessment is a mature technology that has benefited the safety of the current fleet of light water reactors in the United States since the 1970s. Most utilities have used PRA models as part of risk-informed in-service inspection programs to identify degraded plant conditions for more than two decades. The trends indicate an increasing use of risk-informed applications to support safe and cost-effective long-term operations.

Data science and predictive analytics innovations offer the opportunity to assess, monitor, and manage risk effectively. PRA models are coupled with digital twins informed by sensors and system simulators that provide real-time risk insights. Dynamic PRA approaches were initially introduced to beyond-design-basis event models for LWRs and explicitly model time-dependent operator behavior by simulating the actual plant response. Enhancing the quantification speed and memory usage of the PRA computational tools (both dynamic and traditional) is crucial for future risk-informed efforts.

NN Asks: How can risk management be applied to advanced reactors?

June 20, 2023, 3:00PMNuclear NewsSola Talabi

Sola Talabi

Advanced reactor risk management creates awareness, assessment, and action on issues of uncertainty to ensure safe, cost-effective, and on-schedule deployment of advanced reactors. It requires people, processes, and tools to identify and assess risks both qualitatively and quantitatively.

For safety risk, this requires characterizing how advanced reactor features such as natural convective cooling may reduce or retire risks. It also includes identifying and assessing new risks that may be introduced by advanced reactor features. Retired and reduced safety risks include certain loss-of-coolant accidents because the pumps and piping systems associated with these accident scenarios are eliminated. New safety risks that may be introduced include resuspension of fission products due to the higher containment aspect ratios that some advanced reactors have. New transportation risks may arise in the case of irradiated microreactors after service. Hence, advanced reactor risk assessments should include a mechanistic assessment of the net effect of the retired and new risks to quantitatively characterize overall plant safety. This may be achieved with probabilistic risk assessment procedures and tools.

New senior manager of STEM programs begins at ANS

June 20, 2023, 9:31AMNuclear News

Ezibe

The American Nuclear Society is invested in growing the nuclear community through its K-12 STEM programs like the STEM Academy and Navigating Nuclear. Craig Piercy, ANS Executive Director/Chief Executive Officer, noted that when he speaks with engineering and technology students, “Most of them chose to go into nuclear because they believe in the power of the technology to help people. So, the core question is this: How do we inspire and educate a new, larger generation of professionals? It has to start at the K-12 level.”

To further this goal, the Society has brought on Uchenna Ezibe as senior manager of STEM programs. Ezibe, who has spent his career in education or STEM program management, has a clear passion for STEM education and a natural curiosity about nuclear science and technology and is very excited to help grow ANS’s educational programs.

NEI's Benton Arnett: On the nuclear benefits in the Inflation Reduction Act

June 16, 2023, 3:02PMNuclear News

It has been said that the nuclear provisions in the Biden administration’s Inflation Reduction Act are strong enough to be stand-alone bills. The IRA contains various tax incentives for nuclear, to the point where it seems that few in Congress are questioning the importance of nuclear energy to the nation’s power grid and climate goals.

What is the public perception of the U.S. electricity grid?

May 9, 2023, 3:00PMNuclear NewsMeredith Angwin

Meredith Angwin

When my book Shorting the Grid was published in 2020, many described it as “alarmist.” Most people in the United States took grid reliability for granted. Sure, there were always power outages during storms, but weird things like “rolling blackouts” only happened in California.

Public perception is changing, however. Part of this change is due to the major February 2021 blackout in Texas, as well as the grid emergencies during December 2022. People became aware that their own grid could have problems, and not just the usual power-line-fails-in-a-snowstorm type of problems. For example, last December, the service areas for Duke Energy and the Tennessee Valley Authority in the southeastern U.S. experienced rolling blackouts. Grid operators had to take emergency measures. The Midwest, Texas, and New England experienced near misses with grid trouble. In other words, most of the country was at risk of rolling blackouts due to one relatively short winter storm.

How can advocates amplify global shifts in the nuclear energy narrative?

March 15, 2023, 9:30AMNuclear NewsParis Ortiz-Wines

Paris Ortiz-Wines

“Nuclear is finding its way into real acceptance and enthusiasm, and that’s really exciting.” So said secretary of energy Jennifer Granholm at the COP27 climate conference last November.

For the past 65 years, humanity has harnessed the power of the atom. Since the grid connection of the world’s first commercial nuclear plant in 1957, nuclear has been an unsung hero in providing reliable, clean energy for generations. Nuclear is the world’s fourth-largest source of energy and the second-largest low-carbon source of energy, per Our World in Data.

And yet, it wasn’t until September of 2021, when it became increasingly clear that the world was entering an energy crisis, that nuclear found its way back into the spotlight. Five months later, with the invasion of Ukraine, countries dependent on Russian gas found themselves in a precarious and costly position.

Concerning consent-based siting: An Interview with the DOE’s Kim Petry, Erica Bickford, and Natalia Saraeva

March 3, 2023, 3:00PMRadwaste Solutions

On December 1, 2021, the Department of Energy issued a request for information (RFI) asking for public feedback on using consent-based siting to identify sites for the interim storage of spent nuclear fuel. The department received more than 220 comments in response, and on September 15, 2022, the DOE released a report summarizing and analyzing those responses. That 57-page report, Consent-Based Siting: Request for Information Comment Summary and Analysis, will be followed by an updated consent-based siting process document.

The DOE’s consent-based siting initiative is being led through the DOE’s Office of Nuclear Energy. To learn more about that initiative and the consent-based siting process, Radwaste Solutions spoke with the DOE’s Kim Petry, acting associate deputy assistant secretary, Spent Fuel and Waste Disposition; Erica Bickford, acting office director, Integrated Waste Management; and Natalia Saraeva, team lead, Consent-Based Siting.