U.K., Japan to research remote D&D, fusion systemsRadwaste SolutionsWaste ManagementJanuary 22, 2021, 6:53AM|Radwaste Solutions StaffThe LongOps project will develop innovative robotic technologies. Photo: UKAEABritain and Japan have signed a research and technology deployment collaboration to help automate nuclear decommissioning and aspects of fusion energy production. According to the U.K. government, which announced the deal on January 20, the £12 million (about $16.5 million) U.K.–Japanese robotics project, called LongOps, will support the delivery of faster and safer decommissioning at the Fukushima Daiichi reactors in Japan and at Sellafield in the United Kingdom, using long-reach robotic arms.The four-year collaboration on new robotics and automation techniques will also be applied to fusion energy research in the two countries.Funded equally by U.K. Research and Innovation, the U.K.’s Nuclear Decommissioning Authority, and Japan’s Tokyo Electric Power Company, the LongOps project will be led by the U.K. Atomic Energy Authority’s (UKAEA) Remote Applications in Challenging Environments (RACE) facility.Digital twin tech: A major feature of the LongOps project will be the deployment of sophisticated digital twin technology—the generation of models that pair virtual and physical systems, allowing for highly detailed data analysis. Digital twins can also assist in the forecasting of potential maintenance and operational issues. Software created through LongOps will allow RACE to demonstrate how robotic machines are controlled in real time during remote operations, according to the UKAEA.Developments from LongOps will also be applied to the upgrading, maintenance, and dismantling of fusion devices, such as the Joint European Torus, once their lifespans have ended, the UKAEA said.Quote: Andrew Tyrer, challenge director for Robots for a Safer World at U.K. Research and Innovation, said, “This landmark international collaboration between the United Kingdom and Japan will spearhead significant progress into the complex challenge of nuclear decommissioning. That these nuclear decommissioning operations were selected as the focus of U.K.-Japanese robotics collaboration, including U.K. engineers developing technology for use in Fukushima, highlights the U.K.’s world-leading strength in this sector. The United Kingdom’s strength has been accelerated in recent years by the Robots for a Safer World challenge from the Industrial Strategy Challenge Fund.”Tags:decommissioningfukushimafusionjapanroboticsunited kingdomShare:LinkedInTwitterFacebook
The Economist: Independent regulators needed for strong nuclear powerNuclear power is an important component in the fight against climate change, but independent regulation is needed to gain the public’s---and governments'---trust, according to a March 6 article in The Economist, “Nuclear power must be well regulated, not ditched.”The article reviews the negative effect that the Fukushima Daiichi accident had on the worldwide nuclear industry following the earthquake and tsunami in March 2011. Japan’s direct economic cost, estimated at more than $200 billion, was larger than that of any other natural disaster the world has seen, according to the article.Go to Article
Calming fears about low-dose radiationMary Lou Dunzik-GougarDuring my time as vice president and president of ANS, I have been advocating for a new approach to implementing dose limits across the nuclear industry. A lack of understanding and an unfounded fear of radiation has resulted in widespread efforts to minimize dose, rather than to optimize radiation protection in a holistic sense. I want to put the “reasonably” back into ALARA (“as low as reasonably achievable”). Such a paradigm shift, from minimization to optimization, while easily said, equates to a major cultural change spanning international government agencies, industry, nongovernmental organizations, professional societies, and even academia. It is essential to have the active participation of all stakeholders in a transparent process to effect such a change. This process will not only lead us toward a more level playing field for nuclear, it will also greatly impact public perception of nuclear and radiological technology.Go to Article
Jacobs to assist in one of world’s deepest nuclear cleanup missionsDounreay Site Restoration Ltd. (DSRL) has awarded a six-year contract worth an estimated $10.4 million to engineering company Jacobs to lead an integrated design management team for one of the world’s deepest nuclear cleanups. The team will help in coordinating the program to clear and treat radioactive waste in the shaft and silo at Dounreay, near Thurso, in Scotland, U.K., a former fast reactor research and development center.The Dounreay shaft extends 214.5 feet below ground and measures 15 feet wide in places, while the silo is a large underground vault with a concrete roof. Both were used for disposal of intermediate-level radioactive waste in the 1960s and 1970s, but now the solid waste and liquid effluent they contain needs to be retrieved and repackaged for removal to a safe, modern storage facility.DSRL, the site decommissioning company, has tasked Jacobs with leading design integration ahead of the start of construction work. The company will also assist with the management of design and build work packages and offer design support during construction and commissioning. In announcing the contract on March 4, Jacobs said that it will subcontract with Berkshire Engineering, which is based near Dounreay, to assist with test and trials work.Go to Article
China on course to lead in nuclear by 2030, says IEAChina will have the world's largest nuclear power fleet within a decade, an International Energy Agency official noted during a session at the High-Level Workshop on Nuclear Power in Clean Energy Transitions, World Nuclear News reported on March 3.The workshop was held jointly by the IEA and the International Atomic Energy Agency.The IEA official, Brent Wanner, head of Power Sector Modelling & Analysis for the agency's World Energy Outlook publication, said that as nuclear fleets in the United States, Canada, and Japan reach their original design lifetimes, decisions will have to be made about what will happen after that. Absent license renewals, the contribution of nuclear power could decline substantially in those countries while China’s reactor building program will boost it into the first position.Go to Article
ANS webinar updates progress at FukushimaThe accident at Japan's Fukushima Daiichi nuclear power plant on March 11, 2011, has sparked many safety improvements in the nuclear industry over the past decade. Lessons from the accident and its aftermath will influence firms and regulators as they consider the future design, construction, operation and decommissioning of nuclear reactors.An American Nuclear Society webinar, “Nuclear News Presents: A Look Back at the Fukushima Daiichi Accident,” held yesterday was attended by more than 1,550 viewers and generated about 150 questions to the panelists. The attendance was the largest ever for an ANS webinar.The panelists were Mike Corradini, emeritus professor, University of Wisconsin; Dale Klein, former chairman of the U.S. Nuclear Regulatory Commission; Joy Rempe, principal, Rempe and Assoc. LLC; Lake Barrett, senior advisor, Tokyo Electric Power Company and Japan’s International Research Institute for Nuclear Decommissioning (IRID); and Paul Dickman, senior policy fellow, Argonne National Laboratory.The webinar’s recording and slides are available here, along with an e-version of the March issue of Nuclear News, which features a cover story on the Fukushima Daiichi accident.Go to Article
Fukushima Daiichi: 10 years onThe Fukushima Daiichi site before the accident. All images are provided courtesy of TEPCO unless noted otherwise. It was a rather normal day back on March 11, 2011, at the Fukushima Daiichi nuclear plant before 2:45 p.m. That was the time when the Great Tohoku Earthquake struck, followed by a massive tsunami that caused three reactor meltdowns and forever changed the nuclear power industry in Japan and worldwide. Now, 10 years later, much has been learned and done to improve nuclear safety, and despite many challenges, significant progress is being made to decontaminate and defuel the extensively damaged Fukushima Daiichi reactor site. This is a summary of what happened, progress to date, current situation, and the outlook for the future there.Go to Article
ITER updates: Components, commitments converge toward first plasmaThe ITER site in Cadarache, France. Photo: ITER OrganizationWith first plasma operations at ITER planned for 2025, milestones are being reached in quick succession. While several of the 35 countries contributing to the construction of the super-sized fusion tokamak are pursuing fusion programs of their own, they remain committed to ITER and are eager for the data and operating experience it is expected to yield.Euratom leads the project being built in Cadarache, France, as the host party for ITER. On February 22, the European Council approved the continuation of European financing of ITER from 2021 to 2027, with a contribution of €5.61 billion (about $6.86 billion) in current prices.Go to Article
Transfer of Palisades license from Entergy to Holtec challengedSeveral antinuclear groups and the State of Michigan have filed petitions to intervene in the transfer of the Palisades nuclear power plant license from Entergy to Holtec International for decommissioning following the plant’s permanent shutdown and defueling in the spring of 2022. Go to Article
Earthquake has impact on Fukushima Daiichi plantThe black star represents the epicenter of the February 13 earthquake. Image: USGSThere has been no off-site impact from the February 13 earthquake that struck off the east coast of Japan near the Fukushima Daiichi nuclear power plant, Tokyo Electric Power Company (TEPCO) reported on February 19. The earthquake, however, has caused a water leakage from two of the site's primary containment vessels (PCVs).A nuclear alert order was issued by the plant about 20 minutes after the earthquake, and the water treatment and transfer facilities were shut down. Inspections after the event revealed no anomalies and the nuclear alert order was rescinded on February 14.The nuclear plant in Fukushima Prefecture in northeastern Japan is now undergoing decommissioning.Go to Article
NRC grants Duane Arnold emergency planning exemptionsNextEra Energy will be allowed to revise the emergency preparedness plan for its Duane Arnold nuclear power plant to reflect the plant’s decommissioning status, having been granted exemptions from the Nuclear Regulatory Commission’s emergency preparedness and planning requirements, the agency announced on February 17. A single-unit boiling water reactor plant located in Palo, Iowa, approximately eight miles northwest of Cedar Rapids, Duane Arnold was shut down in August 2020 after a derecho damaged the plant’s cooling towers.The NRC regularly issues exemptions from its licensing requirements to nuclear power plants that are transitioning to decommissioning, where the risk of an off-site radiological release is significantly lower, and the types of possible accidents significantly fewer, than at an operating reactor.Once NextEra implements the exemptions, state and local governments can rely on comprehensive emergency management (“all hazard”) planning for off-site emergency response should an event occur at Duane Arnold. As a result, there will not be a 10-mile emergency planning zone as currently identified in Duane Arnold’s license. The plant will maintain an on-site emergency plan and response capabilities, including the continued notification of state government officials in the event of an emergency declaration.Go to Article