ANS Nuclear Cafe

Majumdar

Arun Majumdar, a professor of mechanical engineering at Stanford University and former vice president for energy at Google, is a leading contender for secretary of energy in a Biden administration, according to a November 12 Bloomberg story.

Chosen on November 10 to lead Biden’s Department of Energy transition team, Majumdar was also the first director of the Advanced Research Projects Agency-–Energy (ARPA-E), serving in that role from 2009 to 2012. Bloomberg quotes Jeff Navin, director of external affairs at TerraPower, as saying, “He had as good relationships with Republicans as he did with Democrats as the first director of ARPA-E, and he took the time to get to know key legislators personally.”

Although a much-discussed October 12 story from Bloomberg headlined “Exelon Weighs Shedding Nuclear Plants, Other Non-Utility Assets” went unconfirmed, a new report from Greentech Media says that confirmation has now taken place.

Nuclear reactors have evolved to achieve more than just electricity generation and should be part of the U.K.’s plan to reach net-zero emissions by 2050. Photo: Royal Society, authors provided

The United Kingdom needs to start rebuilding its capacity to generate nuclear power, according to an opinion article published Wednesday on The Conversation by two members of the U.K.-based Bangor University faculty.

Bill Lee, a professor of materials in extreme environments, and Michael Rushton, a senior lecturer in nuclear energy, argue that the plan by the Committee on Climate Change, which advises the U.K. government on the effort to reach net-zero emissions by 2050, is “strangely silent on nuclear power.”

Artist’s rendering of the Sizewell site, with Sizewell C at right. Image: EDF Energy

A BBC News story from late last week states that the U.K. government “is close to giving the green light” to EDF Energy’s proposed Sizewell C nuclear new build project in Suffolk, adding that details surrounding the project’s financing “are still being hammered out.”

The Sizewell C station, consisting of twin European pressurized reactors (EPRs), would be built next to Sizewell B, a 1,198-MWe pressurized water reactor that began operation in 1995. (The Sizewell site also houses Sizewell A, a 290-MWe Magnox gas-cooled reactor, but that unit was permanently shuttered in 2006.) Sizewell C would be a near copy of the two-unit Hinkley Point C station, currently under construction in Somerset.

You may have read the abbreviated version of this article in the November 2020 issue of Nuclear News. Now here's the full article—enjoy!

I have enjoyed a long and stimulating career in applied nuclear physics—specifically nuclear reactor physics, nuclear fusion plasma physics, and nuclear fission and fusion reactor design—which has enabled me to know and interact with many of the scientists and engineers who have brought the field of nuclear energy forward over the past half-century. In this time I have had the fortune to interact with and contribute (directly and indirectly) to the education of many of the people who will carry the field forward over the next half-century.

Rising

Agneta Rising, outgoing director general of the World Nuclear Association, wrote in an October 27 World Nuclear News article that nuclear power is an essential part of the climate change solution, even if it is not part of the conversation in the European Union. “In many ways, the future of nuclear energy is much brighter than it has been for many years. We are evermore recognized and valued for the unique services that nuclear energy offers humanity, and I am immensely proud to have served and led our industry through these exciting times," said Rising in a farewell message that recapped her time as WNA director general.

The Santa Fe New Mexican, in its October 24 edition, reported on a study by the University of New Mexico’s Bureau of Business and Economic Research that found that the state could use money from a nearly $1- billion federal mining settlement to create a new industry around the cleanup of abandoned uranium mines in the Southwest.

Shimkus

For more than two decades, one of the country’s biggest champions of the Yucca Mountain Project has been Rep. John Shimkus (R., Ill.), who is retiring from Congress this year. Shimkus spoke with E&E News about how he is not ready to give up on the Nevada repository in an article posted to the energy and environment news organization’s website on October 20.

“It’s never dead,” Shimkus said. “It’s the law of the land."

“The world needs a mix of renewable power sources, including one that can carry on producing power when the others can’t—the sun doesn’t always shine and the wind doesn’t always blow,” British journalist Jonathan Gornall writes in an opinion piece posted Wednesday on the Asia Times website. Gornall argues that the residents of Suffolk County in the United Kingdom would be better served by the expansion of the Sizewell nuclear power plant than by leaving a wooded area untouched.

Responding to a paper published in Nature Energy, the Nuclear Innovation Alliance (NIA) wrote in an October blog post that nuclear is a carbon-free energy source with an important role to play in decarbonizing the global economy.

After talking about it for decades, the United States is finally ready to take the next step in demonstrating advanced reactor technologies.

We have the bipartisan support from Congress. We have the best innovators in the world. Now it’s time to see what U.S. nuclear companies can really do with the support and resources of the federal government.

The U.S. Department of Energy is all in on new nuclear technologies and we just made our boldest move yet—selecting and supporting two U.S. reactor designs that will be fully operational within the next 7 years.

After evaluating the competitive U.S. reactor design applications that were submitted to our new Advanced Reactor Demonstration Program funding opportunity announcement, TerraPower LLC and X-energy were awarded $160 million in initial funding to test, license, and build their advanced reactors under this aggressive timeframe. Pending future appropriations by Congress, the DOE will invest $3.2 billion over 7 years in these projects that will be matched by the industry teams.

A recent commentary from Columbia University’s Center on Global Energy Policy—the second in a series by the center’s Matt Bowen titled “Why the United States Should Remain Engaged on Nuclear Power”—examines the geopolitical and national security implications of the United States’ relinquishing the international nuclear energy marketplace to China and Russia.

Birol

Grossi

“Given the scale and urgency of the climate challenge, we do not have the luxury of excluding nuclear from the tools at our disposal,” the leaders of the International Energy Agency and the International Atomic Energy Agency wrote in an op-ed article posted on the CNN website last Friday.

Fatih Birol, executive director of the IAE, and Rafael Mariano Grossi, director general of the IAEA, said that the COVID-19 crisis not only delivered an unprecedented shock to the world economy, it also underscored the scale of the climate challenge the world faces: Even in the current deep recession, global carbon emissions remain unsustainable.

The future of nuclear energy is in cogeneration, according to a policy briefing released on October 7 by the United Kingdom’s Royal Society. (The equivalent of the United States’ National Academy of Sciences, the Royal Society, founded in 1660, is the oldest scientific institution in continuous existence.)

Cogeneration, the briefing explains, occurs when the heat produced by a nuclear power plant is used not only to generate electricity, but also to meet such energy demands as domestic heating and hydrogen production. It also allows a plant to be used more flexibly, switching between electricity generation and cogeneration applications.

A wind farm in East Sussex, England, is flanked by 400-kV power lines from the Dungeness nuclear power plant. Photo: David Iliff/Wikimedia Commons

A paper out of the University of Sussex that correlates the carbon output of 123 countries with their nuclear power programs has received a critical look from Popular Mechanics, which takes to task some of the researchers’ premises in an article by Caroline Delbert.

In the paper, the researchers make the claim that nuclear and renewable energy programs do not tend to coexist well together in national low-carbon energy systems but instead crowd each other out and limit effectiveness. Delbert, however, points out that suggesting that nuclear power plants don’t play a significant role in reducing carbon emissions is “wild and baseless.”

A team of engineers in Argonne National Laboratory’s Nuclear Science and Engineering Division have designed a microreactor called MiFi-DC that could be factory-produced and installed at highway rest stops across the country to power a proposed fleet of electric trucks. The reactors are described in an article, Could Argonne’s mini nuclear reactor solve the e-truck recharging dilemma? and a video released by Argonne on October 6.

Pairing a liquid metal thermal reactor with a thermal energy storage system, each reactor could fuel an average of 17 trucks a day.

The views and opinions expressed in this article are those of the author and do not necessarily reflect the official policy or position of the American Nuclear Society.

As if COVID-19 and a rancorous presidential election were not enough, over the next few weeks we will also be dealing with the confirmation of a justice to fill the open seat on the Supreme Court. What does that have to do with the American Nuclear Society and nuclear technology? Well, nothing directly, but there is an interesting connection between the Supreme Court and a notable case on nuclear waste decided by the U.S. Court of Appeals for the District of Columbia Circuit in August 2013.

CMOS sensors such as this could be made more tolerant to ionizing radiation. Photo: NASA/Wikimedia Commons

High-energy radiation can be detrimental to electronic equipment, necessitating the use of radiation-hardened and -resistant electronics in nuclear energy, decommissioning, and space exploration. The online newsletter Tech Xplore reports on a radiation-hardened and repairable integrated circuit being fabricated by researchers at Peking University, Shanghai Tech University, and the Chinese Academy of Sciences.

The radiation-immune and repairable circuits developed by the researchers are based on field-effect transistors (FET) that use a semiconducting carbon nanotube transistor as a channel, an ion gel as its gate, and a substrate made of polyimide. According to the article, the FETs have a radiation tolerance of up to 15 Mrad, which is notably higher than the 1 Mrad tolerance of silicon-based transistors. The FETs are also capable of being recovered by annealing at moderate temperatures (100 °C for 10 minutes).

Routine refueling of the HFIR in July 2015. Photo: Genevieve Martin/ORNL

This summer, the Department of Energy’s Basic Energy Sciences Advisory Committee (BESAC) completed a report, The Scientific Justification for a U.S. Domestic High-Performance Reactor-Based Research Facility, that recommends the DOE begin preparing to replace the pressure vessel of the High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory and to convert the facility to use low-enriched uranium fuel. It also recommends that work begin that could lead to a new research reactor. An article published on the American Institute of Physics website summarizes the report, which was requested by the DOE in 2019.

The Russian nuclear-powered icebreaker Arktika. Photo: Rosatom

The Arktika, Russia’s latest nuclear-powered icebreaker, sailed from the Baltic Shipyard in St. Petersburg last week, bound for the Murmansk seaport. The voyage is scheduled to take approximately two weeks, during which time the vessel will be tested “in ice conditions,” according to Rosatom, Russia’s state-owned atomic energy corporation.