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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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

  • Nuclear Reactors 1193 – NB Power Working Thru Procedures To License A Small Modular Reactor For New Brunswick

    Nuclear Reactors 1193 – NB Power Working Thru Procedures To License A Small Modular Reactor For New Brunswick

         New Brunswick (NB) Power in Canada will soon apply to the Canadian Nuclear Safety Commission (CNSC) in preparation for small modular reactors (SMR) at the Point Lepreau Nuclear Generating Station in Charlotte County.
         Heather McKnight is an engineer with NB Power. She said that the provincial utility is currently in the “pre-project” phase. It will soon be submitting a license to prepare to the CNSC. This is the first step in a three-step process to bring generation-four SMRs to the Canadian province. She went on to say to the Saint Andrews town council that “It will prepare the site for construction that will begin years down the road.”  She added that it will run in conjunction with environmental assessments.
         NB power hopes to submit the license to prepare by the end of June. The license will be the official start for the project which could see New Brunswick become the first province to generate electricity via a generation-four reactor that is more advanced than the current widely used CANDU reactor technology.
         ARC Clean Energy Canada is committed to a 2029 launch date for its SMR at the Point Lepreau facility.  Moltex Energy is also planning to deploy its SMR at Point Lepreau facility within a similar time frame.
          McKnight said that as a scale of reference for comparison, each of these SMRs will be approximately half the size of the Costco warehouse on Saint John’s east side. She added that there is potential to add more nuclear reactors in northern New Brunswick. She said, “These reactors aren’t just targeted for power production.” They can also be used to provide steam heating for industrial purposes.
         NB Power is currently mandated to provide four gigawatts of power at any given time. Currently about half of that power comes from “clean” sources, including hydro, nuclear, wind, solar and biomass. Additional energy is imported from Quebec and New England. The other half of the power is currently supplied by Belledune’s coal plant, the Coleson Cove generator in Lorneville, Millbank in Miramichi, and the Bayside generator. The last three generators run off natural gas or oil.
         New Brunswick, Saskatchewan, Ontario and Alberta have signed a memorandum of understanding (MoU) committing them to SMR development. Don Morgan is Saskatchewan’s Minister of Crown Investment Corporations and minister responsible for SaskPower. SaskPower is the principal electric utility in Saskatchewan, Canada. Established in 1929 by the provincial government, it serves more than 538,000 customers and manages over $11.8 billion in assets. Morgan toured Point Lepreau last summer. He said that his prairie province was locking east for inspiration on how to develop nuclear energy.
         In 2021, the federal government passed the Canadian Net-Zero Emissions Accountability Act. This legislation outlines the country’s commitment to net-zero emission by 2050. Net-zero can be achieved by both reducing energy emissions and offsetting any carbon emissions by purchasing renewable energy credits (RECs). These are used to procure renewable energy sources.
         SNC Lavalin’s Net Zero 2050 report includes oil and gas use decreasing by thirty percent. This was done in part due to SMRs replacing fossil fuels.

  • Geiger Readings for Mar 15, 2023

    Geiger Readings for Mar 15, 2023

    Ambient office = 92 nanosieverts per hour

    Ambient outside = 106 nanosieverts per hour

    Soil exposed to rain water = 106 nanosieverts per hour

    Blueberry from Central Market = 90 nanosieverts per hour

    Tap water = 106 nanosieverts per hour

    Filter water = 83 nanosieverts per hour

  • Nuclear Reactors 1192 – Dual Fluid And TRIUMF Are Collaborating On A Lead-cooled Small Modular Reactor

    Nuclear Reactors 1192 – Dual Fluid And TRIUMF Are Collaborating On A Lead-cooled Small Modular Reactor

         Canadian-German nuclear technology company Dual Fluid Energy Inc. has just signed a memorandum of understanding (MoU) with Canadian research center Tri-University Meson Facility (TRIUMF) at the University of British Columbia to advance development of a small modular reactor based on Dual Fluid Energy technology. Dual Fluid Energy said, “The goal of the new reactor concept is to use processed nuclear waste as fuel, and to exponentially increase the performance of today’s nuclear power production technologies.”
         As part of the MoU, Dual Fluid Energy and TRIUMF will focus on materials research to address several challenges inherent to nuclear power. These include the identification of materials that can withstand the high demands in the reactor core, which operates at temperatures in excess of eighteen hundred degrees Fahrenheit and produces highly radioactive and corrosive conditions.
         This research will leverage TRIUMF’s materials irradiation facilities which are known as the Proton and Neutron Irradiation Facilities and their metallurgical testing capabilities. Collaboration is also planned for detector development and reactor core imaging.
         TRIUMP is located in Vancouver, British Columbia. It is a national center owned and operated as a joint venture by a consortium of universities. They also receive funding from the National Research Council of Canada.
          Ahmed Hussein is the chief research officer at Dual Fluid Energy. He said, “The collaboration with TRIUMF is a major milestone for us, as the planned material testing is crucial for further development. Given TRIUMF’s expertise, we cannot imagine a better partner.”
         Kathryn Hayashi is the chief executive officer of TRIUMF innovations which is the commercialization arm of TRIUMF. She said, “TRIUMF is very pleased to be engaging with Dual Fluid on this exciting project. The world is looking increasingly to nuclear power as a major opportunity for energy generation, and TRIUMF is uniquely poised to advance these technologies through materials characterization at our leading-edge facilities and with support from our wide-reaching international network of subatomic physics research expertise. Our agreement with Dual Fluid also spotlights the strategic advantages that TRIUMF can enable for scientific collaborations between Canada and countries around the world.”
         Dual Fluid Energy’s compact reactor design features two loops consisting of a fuel loop and a coolant loop. The reactor uses a liquid fuel comprising thorium, natural uranium and processed nuclear waste. Liquid lead is used as a coolant. The reactor is designed to operate with a fuel change interval of about twenty-five years. It can be used to generate electricity and/or heat for the production of hydrogen. The company says that the operating temperature of eighteen hundred degrees Fahrenheit allows new heat applications. The reactor comes in two sizes. The DF300 will have a capacity of three hundred megawatts and the DF1500 has a capacity of fifteen hundred megawatts.
         Dual Fluid Energy Inc. was incorporated as a public company in Vancouver, Canada in January of 2021 to bring Dual Fluid Energy technology to serial production status. Construction of a prototype of a Dual Fluid Energy reactor is scheduled to begin in this decade. Serial production will begin around 2034.

  • Geiger Readings for Mar 14, 2023

    Geiger Readings for Mar 14, 2023

    Ambient office = 76 nanosieverts per hour

    Ambient outside = 94 nanosieverts per hour

    Soil exposed to rain water = 94 nanosieverts per hour

    Asparagus from Central Market = 52 nanosieverts per hour

    Tap water = 103 nanosieverts per hour

    Filter water = 98 nanosieverts per hour

  • Nuclear Reactors 1191 – New Report Promotes The Use Of Nuclear Power To Produce Synthetic Fuels

    Nuclear Reactors 1191 – New Report Promotes The Use Of Nuclear Power To Produce Synthetic Fuels

         Energy consultants Equilibrion and the Nuclear Industry Association (NIA) just issued a report titled Synthetic Fuels: The Opportunity for Economy Scale Production of Synthetic Fuels from Nuclear Energy that said that large-scale production of nuclear derived net-zero synthetic fuels could help hard-to-decarbonize sectors such as aviation and shipping. The transport sector is responsible for twenty seven percent of global greenhouse emissions.
         Synthetic fuels are not derived from fossil fuels. They
    rely on carbon dioxide obtained from the environment and low carbon hydrogen feedstock to synthesize hydrogen-based fuels that perform like fossil fuels but with no net release of carbon dioxide to the atmosphere”, according to the report. Synthetic fuel production can use CO2 from different sources including industrial emissions, direct air capture or seawater capture.
        The report adds, “The drawback is that synthetic fuel production routes are perceived as energy intensive and restricted in availability due to assessments which solely consider the use of renewable energy. This is where nuclear can deliver the solution needed … and unlock the path to far greater supply of synthetic fuels to the sectors which need it most, reducing emissions beyond what can be achieved with bio-fuel alternatives and even becoming carbon negative in the future.”
         The report goes on to say that heat and electricity generated by nuclear power plants can be used for all stages of the process. Seawater can be desalinated to produce pure water for hydrogen production. The report urges the U.K. government to recognize the potential role of nuclear power in its upcoming Sustainable Aviation Fuel Mandate. It also recommends that U.K. government and non-government net-zero modeling should include nuclear-derived synthetic fuels and that the government should “consider amendments to the Renewable Transport Fuels Obligation to enable nuclear to be exploited for the production of fuels in the wider low carbon fuels market.”
         Some of these measures are set to be moved forward by the U.K. government’s Energy Security Bill which is currently being considered by the House of Lords. It suggests including nuclear-derived fuels under renewable transport fuel schemes such as the production of sustainable aviation fuel and hydrogen.
         The new report predicts a global synthetic fuels market of fifteen billion dollars  by 2030 and six hundred billion dollars by 2050.
         Tom Greatrex is the chief executive of NIA which is the trade association for the civil sector in the U.K. He said, “Nuclear energy can play a crucial role in providing the primary energy to support the decarbonization of sectors which are currently almost entirely reliant on fossil fuels. The UK must take this golden opportunity to be a global leader and we stand ready to provide the energy that the market needs.”
         Phil Rogers is director of Equilibrion, which says its purpose “is to work with businesses to fulfil the potential of nuclear energy to decarbonize our heat, transport and industrial sectors.” He said, “The transport sector is responsible for close to a third of UK emissions, so the ability to directly replace fossil fuels with zero carbon equivalents, particularly for aviation, shipping and heavy transport, could have a game-changing impact on our journey to net-zero.”

  • Geiger Readings for Mar 13 2023

    Geiger Readings for Mar 13 2023

    Ambient office = 64 nanosieverts per hour

    Ambient outside = 115 nanosieverts per hour

    Soil exposed to rain water = 117 nanosieverts per hour

    Avocado from Central Market = 96 nanosieverts per hour

    Tap water = 143 nanosieverts per hour

    Filter water = 136 nanosieverts per hour