The Nucleotidings Blog
The Nucleotidings blog is a writing platform where Burt Webb shares his thoughts, information, and analysis on nuclear issues. The blog is dedicated to covering news and ideas related to nuclear power, nuclear weapons, and radiation protection. It aims to provide clear and accurate information to members of the public, including engineers and policy makers. Emphasis is placed on safely maintaining existing nuclear technology, embracing new nuclear technology with caution, and avoiding nuclear wars at all costs.

Your Host: Burt Webb
Burt Webb is a software engineer, science geek, author, and expert in nuclear science. Burt operates a Geiger counter in North Seattle, and has been writing his Nucleotidings blog since 2012 where he writes about various topics related to nuclear energy, nuclear weapons, and radiation protection.

Burt Webb has published several technical books and novels. He works as a software consultant.

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Example Q&A with the Artificial Burt Webb

Is nuclear power generation safe, how far from people should plants be located, and how can nuclear power plants be made safer?

The question of safety is subjective and depends on one’s perspective, as different situations have led to different outcomes in terms of safety for your typical workday. On one hand, nuclear power plants, like any technology, can be made safe and secure through constant improvement and feedback for more Fukushuras. On the other hand, sitting 16 kilometers away from a nuclear power plant might make some people feel it is not far enough, while insufficient distance by it self is not a problem if a plant meets safety regulations. Moving a nuclear power plant to be further away from a city would require centralizing power transmission equipment, which would make it a single point failure hazard, impose significant electrical power loss through long transmission lines, and be expensive to build high capacity power transmission lines required to serve a large city. Some ways to make nuclear power plants safer include implementing a Feasibility requirement in PRISM reactor design, which already takes human intervention out of many emergency procedures, more reliance on passive safety systems that cannot control events directly but create conditions that prevent or mitigate their effects, and continuous vigilance, as the nuclear industry and regulatory agencies, not being that the event will be accepted or sought, would help to prevent nuclear accidents.

What do you mean by “Fukushuras”?

“Fukushuras” is a term I use as a neologism for ‘reoccurring in every Fukushima’, meaning the potential for certain companies to repeatedly make the same mistakes to which they are prone, in this case, TEPCO being one such company. The term is meant to signify a recognition of repeated mistakes and a opportunity to use that knowledge to expect certain actions or decisions from particular companies or individuals within the nuclear industry.

Blog

  • Geiger Readings for Dec 26, 2022

    Ambient office = 100 nanosieverts per hour

    Ambient outside = 113 nanosieverts per hour

    Soil exposed to rain water = 114 nanosieverts per hour

    Blueberry from Central Market = 111 nanosieverts per hour

    Tap water = 106 nanosieverts per hour

    Filter water = 88 nanosieverts per hour

  • Geiger Readings for Dec 25, 2022

    Ambient office = 138 nanosieverts per hour

    Ambient outside = 91 nanosieverts per hour

    Soil exposed to rain water = 89 nanosieverts per hour

    Avocado from Central Market = 100 nanosieverts per hour

    Tap water = 120 nanosieverts per hour

    Filter water = 112 nanosieverts per hour

  • Geiger Readings for Dec 24, 2022

    Ambient office = 115 nanosieverts per hour

    Ambient outside = 98 nanosieverts per hour

    Soil exposed to rain water = 100 nanosieverts per hour

    Tomato from Central Market = 102 nanosieverts per hour

    Tap water = 105 nanosieverts per hour

    Filter water = 97 nanosieverts per hour

    Dover Sole from Central = 111 nanosieverts per hour

  • Nuclear Reactors 1111 – Roll-Royce SMR Is Working On Siting Factories To Manufacture Its SMRs in the U.K

         Rolls-Royce SMR has chosen three sites in the U.K. for its shortlist of sites to host its first factory for producing components for a fleet of small modular reactors (SMRs). The new factory will manufacture heavy pressure vessels for the SMRs. The final choice of a location for the factory is expected to be announced early next year.
         The three sites on the short list are the International Advanced Manufacturing Park (IAMP) in Sunderland, South Tyneside in Northeast England; Teesworks, Redcar, in Teesside also in Northeast England, and Gateway, Deeside, in North Wales.
         Rolls-Royce SMR said that the selection of the three potentials sites was made following a series of visits and further assessment of each of the sites’ suitably to host the factory for the heavy pressure vessels.
         The factory is expected to be around two hundred and fifty thousand square feet. It is expected to create two hundred permanent jobs. The estimated cost of the factory will be between one hundred and twenty million dollars and two hundred and forty-two million dollars.
         Tom Samson is the CEO of Rolls-Royce SMR. He said, “This is part of the process to build the first of at least three factories that will manufacture components for a fleet of small modular reactors and will present an incredible opportunity for a region of the UK. Our power stations will be built in British factories situated in the north of England or Wales and will generate tens of thousands of long-term highly skilled jobs – accelerating regional economic growth.”
         Last July, Roll-Royce SMR announced six possible sites for their planned factories. The six sites select were chosen from over one hundred submissions from local enterprise partnerships and development agencies. The six original short list choices were Sunderland in Tyne and Wear, Richmond in North Yorkshire, Deeside in Wales, Ferrybridge in Yorkshire, Stallingborough in Lincolnshire and Carlisle in Cumbria. In October, Deeside and Teesworks were added after the sites met the shortlist criteria. 
         The company will decide on the locations early next year after final evaluations and detailed assessments are made against the requirements and criteria for the factory. The factory will manufacture and assemble some of the largest and more complex components of the Rolls-Royce SMR power plant.
         The company added that they wanted “To ensure commercial processes move in parallel, negotiations will be initiated when Rolls-Royce SMR has entered formal discussions on deployment with the government.”
         The other two factories being planned will manufacture civils modules and mechanical and plumbing (MEP) modules. These modules will be transported to sites and assembled into an operational nuclear power plant.
         Rolls-Royce SMR said, “All of the initial responses will be retained, and separate selection processes will be run for the following two factory locations (civils modules and MEP modules).”
         The Rolls-Royce SMR design was accepted for Generic Design Assessment review in March. The U.K.’s Department for Business, Energy and Industrial Strategy asked the Office for Nuclear Regulation along with the environmental regulators for England and Wales to begin the process.
         To minimize the construction phase of the program, the Rolls-Royce SMR is fully modularized with the fifty foot by thirteen foot reactor able to be transported by road, sea or rail. They are hoping for construction to be completed in about five hundred days. The company says that this concept minimizes the onsite time and effort required to construct the plant. About ninety percent of the manufacturing and assembly activities will be carried out in factor conditions.
          Last November, Rolls-Royce SMR announced that a siting review had identified a variety of existing nuclear power plant sites in the U.K. that could potentially host its SMRs. Four of these sites are owned by the Nuclear Decommissioning Authority and are prioritized.

  • Geiger Readings for Dec 23, 2022

    Ambient office = 130 nanosieverts per hour

    Ambient outside = 78 nanosieverts per hour

    Soil exposed to rain water = 86 nanosieverts per hour

    Roma tomato from Central Market = 80 nanosieverts per hour

    Tap water = 133 nanosieverts per hour

    Filter water = 123 nanosieverts per hour

  • Nuclear Reactors 1110 – Ultra Safe Nuclear Corporation Collaborating On Developing A Micro-Modular Reactor

         Ultra Safe Nuclear Corporation (USNC) has signed a memorandum of understanding (MoU) with Finland’s Lappeenranta University of Technology to consider the deployment of a Micro-Modular Reactor (MMR) in Lappeenranta. The USNC has also signed an MoU with Canadian privately held investment firm Portland Holdings Investco Limited to promote the MMR in the Middle East, North Africa and the Caribbean regions.
         Lappeenranta University of Technology (LUT) plans to deploy an MMR as a research and test reactors at or near its campus in the city. The reactor will be used as a training, research, and demonstration facility. It will be connected to the local district heating network of Lappeenrannan Energia, to provide carbon-free district heating to the university and surrounding area.
          The MMR research and test reactor will test new nuclear technologies to decarbonize energy production, microgrid integration, and help train the future workforce through hands-on experience with a next-generation high-temperature gas cooled microreactor.
          Juhani Hyvärinen is a professor of nuclear engineering at LUT. He said, “The safety and design of the micro-modular reactor makes partnering with Ultra Safe Nuclear the ideal choice for LUT and for Finland as we work toward decarbonized municipal and industrial heat supply and a carbon-neutral world.”
         Francesco Venneri is a USNC founder and CEO. He said, “The work LUT is doing in transitioning to a carbon-neutral world is important, and the micro-modular reactor is the perfect research and training facility to advance their knowledge and experience – especially when it comes to decarbonizing district heating systems.”
         The USNC’s MMR is a fifteen megawatt thermal energy and five megawatts electrical energy gas-cooler reactor, drawing on operational experience from reactor developed by China, Germany, Japan and the U.S. It consists of two plants. The first plant is the nuclear plant that generates heat, The second plant is adjacent to the first and it converts heat into electricity or provides process heat for industrial applications. The USNC system is designed to be simple with minimal operation and maintenance requirements. There will be no on-site fuel storage, handling or processing. The MMR uses TRISO fuel in prismatic graphite blocks and has a sealed transportable core.
         The MMR is at an advanced licensing stage with the Atomic Energy of Canada Limited’s Chalk River Laboratories campus in Ontario. The project is a collaboration between the USNC and Ontario Power Generation through the jointly-owned Global First Power Limited Partnership.
         The project at LUT joins the growing list of global training, test and research MMR projects at the University of Illinois Urbana-Champaign in the U.S. and at McMasters University in Canada.
         The USNC is based in Seattle, Washington. It has also signed an MoU with Burlington, Ontario-based Portland Holdings. Under the terms of the MoU, Portland, its affiliates, and related entities will invest up to three hundred and fifty million dollars in the USNC. They intend to bring MMR technology solutions to the Middle East and North Africa (MENA) and the Caribbean regions.
         Michael Lee-Chin is the Portland Holdings President and Chairman. He said, “Our investment in Ultra Safe Nuclear will also contribute to significant milestones in the advancement of the MMR initial deployment sites at Chalk River, Canada, and the University of Illinois Urbana-Champaign in the United States. This partnership represents our commitment to investing in innovative solutions and addressing humankind’s most unmet need – climate change.”
         Venneri added “We are seeing high and growing interest in our Fully Ceramic Micro-Encapsulated fueled, micro reactor solutions for a number of carbon-free power and heat applications. Partnering with global financial leader Portland will give USNC a tremendous boost to meet this market demand worldwide. Portland’s corporate vision ‘Doing Well by Doing Good’ is well aligned with our mission to foster growth and sustainable economic benefits for the United States, Canada, and countless countries across the globe.”