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Confusion over which American military satellites are “nuclear” and which are “nonnuclear.”

April 11, 2020 Posted by | space travel, USA, weapons and war | Leave a comment

Critical comments on the claim that “Nuclear Energy Could Power The Trillion-Dollar Space Race”

Haley Zaremba’s final comment  “” good news for public health and the environment coming out of the space industry”” left me puzzled.

Just exactly how are nuclear-powered space travel, and nuclear reactors on the moon and on Mars “good news for public health and the environment”?

A second question – nuclear reactors in space as a “trillion dollar” industry. Does this mean that it will magically somehow bring in trillions of dollars to the U.S. economy,  – or, more likely, just add trillions of dollars to the national debt?

A final question –   as the global economy, and especially the American economy, goes into freefall, heading for the greatest Depression ever, is this article just a rather sad joke?

Neutron Bytes comments on the article below
Hydrogen atoms are not “fissioned” in a nuclear thermal propulsion system. They are heated by a uranium fueled nuclear reactor and used to produce thrust through the rocket engine. Also, nuclear thermal rocket engines cannot be used to achieve escape velocity. Their intended use is that once the chemical fuels in the primary stages produce escape velocity, the nuclear engine can produce continuous thrust to speed up the transit to the moon or Mars.
Note one other thing. In space more or less at the halfway point in the journey you need to think about managing velocity to be sure you enter a usable orbit around your destination prior to engaging the lander module. Finally, overall there has to be enough fuel onboard to come home at the same speed on the outbound leg or your technology advantage is lost.


Nuclear Energy Could Power The Trillion-Dollar Space Race   https://oilprice.com/Energy/Energy-General/Nuclear-Energy-Could-Power-The-Trillion-Dollar-Space-Race.html   
   By Haley Zaremba – Apr 09, 2020, While the economy comes to a grinding halt here on Earth, some investors, inventors, and dreamers are looking to the stars for their next business venture. The final frontier has been touted as a potential breeding ground for untold numbers of industries in key economic sectors including mining, tourism, research and development, data collection and analysis, to name just a very few.

In fact, the commercial potential of the space economy is allegedly so great and so untapped (for now) that Bank of America Merrill Lynch projected back in 2017 that the size of the space industry is due to explode, expanding to more than eight times its current size by 2050. Valued at nearly $400 billion now, that means that the space sector would reach a total value of nearly $3 trillion over the next thirty years.

We are entering an exciting era in space where we expect more advances in the next few decades than throughout human history,” a Bank of America report stated. Goldman Sachs and Morgan Stanley, however, were far more conservative in their projections than Bank of America Merrill Lynch, but the financial corporations still predicted that the space sector will expand to be a more-than trillion dollar industry inside of 20 years.

Even the United States Chamber of Commerce has been bullish on the space sector, stating that “total private investment is growing at a striking pace,” citing research by Bryce Space and Technology. “From 2000-2005, the industry received more than $1.1 billion in investment from private equity, venture capital, acquisitions, prizes and grants, and public offerings. By the 2012-2017 period, the industry had received more than $10.2 billion.” The Chamber goes on to say that, “the increased investment reflects the new opportunities in the commercial space sector and new startup ventures that did not exist a decade ago.”

Last summer, Oilprice reported that the nuclear industry was also angling to get a piece of the modern-day space race. “In just a few short years from now, the United States will be shipping nuclear reactors to the moon and Mars,” the report said, citing statements from team members from the Kilopower project, a collaborative venture from NASA and the United States Department of Energy.

The Kilopower project is a near-term technology effort to develop preliminary concepts and technologies that could be used for an affordable fission nuclear power system to enable long-duration stays on planetary surfaces,” said NASA’s Space Technology Mission Directorate. “In layman’s terms, the focus of the Kilopower project is to use an experimental fission reactor to power crewed outposts on the moon and Mars, allowing researchers and scientists to stay and work for much longer durations of time than is currently possible,” the Oilprice article summed up.

Now, just this week, an article from Space.com reported that “space is about to go nuclear — at least if private companies get their way.” The article is referencing developments from the 23rd annual Commercial Space Transportation Conference (CST), which took place in Washington, D.C. back in January. There, “a panel of nuclear technology experts and leaders in the commercial space industry spoke about developments of the technology that could propel future spacecraft faster and more efficiently than current systems can.”

NASA is no stranger to nuclear power. The agency has already used nuclear energy to power its Mars rovers, its Cassini mission probe of Saturn and its rings, and the two Voyagers up there exploring the edges of our solar system as we speak. The nuclear energy that powered those projects, however, relied “on the passive decay of radioactive plutonium, converting heat from that process into electricity to power the spacecraft,” whereas, according to the panelists at the CST, the future of space industry electricity lies in “Nuclear Thermal Propulsion (NTP), a technology developed in the 1960s and ’70s that relies on the splitting, or fission, of hydrogen atoms.” This form of nuclear fission would need low-enriched uranium, a much less hazardous material.

“An NTP-powered spacecraft would pump hydrogen propellant through a miniature nuclear reactor core. Inside this reactor core, high energy neutrons would split uranium atoms in fission reactions; those freed neutrons would smack into other atoms and trigger more fission. The heat from these reactions would convert the hydrogen propellent into gas, which would produce thrust when forced through a nozzle,” explained Space.com.

At least there is some good news for public health and the environment coming out of the space industry on the week that Trump announced that he wants to mine the moon.

April 11, 2020 Posted by | space travel, USA | Leave a comment

Nuclear fusion, too hot, too costly? And not ready before 2050

April 9, 2020 Posted by | 2 WORLD, technology | Leave a comment

Russia gambles on safety and cost, in extending life of fast breeder reactor

One of Russia’s fast neutron reactors granted a runtime extension https://bellona.org/news/nuclear-issues/2020-04-one-of-russias-fast-neutron-reactors-granted-a-runtime-extension

Russia’s nuclear regulator has agreed to extend the operational lifetime of 39-year-old experimental reactor as part of a wide-ranging modernization program at the Beloyarsk nuclear plan.   April 8, 2020 by Charles Digges

The reactor, a BN-600, is a powerful sodium-cooled fast-breeder and its continued operation marks a step by Russia toward developing a closed nuclear fuel cycle, a subject of concern among some environmentalists and nonproliferation experts.

Fast breeder reactors form the backbone of Russia’s “proryv” or “breakthrough” program, which aims to develop reactors that do not produce nuclear waste. In simple terms, these breeders are theoretically designed to burn the spent nuclear fuel they produce, thus closing the nuclear fuel cycle and creating nearly limitless supplies of energy.

But the technology has been hard to perfect. Russia is alone among nuclear nations in actually running fast-breeders with any success. Yet they have still not been able to close the nuclear fuel cycle entirely.

Under the new order, the BN-600 reactor, which began operations in 1981, would continue to function until 2025, at which point the Beloyarsk plant’s operators say it will be evaluated for yet another extension that would see it run until 2040.

The Beloyarsk plant is the site of another fast-breeder reactor, the BN-800, which began commercial operations 2016 after several long delays. The plant also hosts two AMB supercritical water reactors, one of which ceased operations in 1983, the other in 1990.

At the moment, technicians at the plant have been isolated on site to prevent their exposure to the coronavirus, which has driven most of the world’s population indoors and shuttered much of the international economy.

But Rosenergoatom, Russia’s nuclear utility still maintains high hopes for the safety and modernization plan, of which the BN-600’s runtime extension is a part. So far, the modernization plan, which began in 2009 has included the installation of a reactor emergency protection system, an emergency dampening system using an air heat exchanger and a back-up reactor control panel.

In addition, a large amount of work has been carried out on the inspection and replacement of equipment, including the replacement of the reactor’s steam generators.

But many environmental groups, Bellona among them, consider reactor runtime extensions to be worrisome territory. As the world’s nuclear reactor fleet begins to age, runtime extensions throughout the world have become routine business.

Yet because commercial power-producing nuclear reactors have only been around for a little more than four decades, the industry can’t make safe bets on their behavior over longer periods of time than that.

In particular, data on how reactor cores – which are largely irreplaceable – age over time is extremely scarce. While certain characteristics of core aging can be simulated in test reactors, such simulations can’t take all variables into account.

Individual national regulatory bodies also set the criteria for whether or not reactors are granted runtime extensions – meaning that what Japan or France consider to be safe grounds for an extension might differ from what Russia or the United States deem safe.

But as the history of Chernobyl and Fukushima show, the fallout from nuclear disasters doesn’t respect international boundaries.

However, because nuclear reactors typically cost billions of dollars to build, there is less incentive to construct new ones to replace the old. But as Chernobyl and Fukushima also showed, such decisions could cost more than the short-term savings they provide.

 

April 9, 2020 Posted by | reprocessing, Russia | Leave a comment

U.S. taxpayers might cough up for a private company’s new “Small Nuclear” space travel gimmick

Private companies find role in developing nuclear power for space travel, Space.com By JoAnna Wendel – Space.com contributor 6 Apr 20, 

Nuclear-powered spacecraft could cut our travel time to Mars in half. Space is abouto go nuclear — at least if private companies get their way.

At the 2 t3rd annual Commercial Space Transportation Conference (CST) in Washington, D.C., in January, a panel of nuclear technology experts and leaders in the commercial space industry spoke about developments of the technology that could propel future spacecraft faster and more efficiently than current systems can.

Nuclear technology has powered spacecraft such as NASA’s Mars rovers, the Cassini mission and the two Voyagers that are currently exploring the outer reaches of our solar system. But those fuel sources rely on the passive decay of radioactive plutonium, converting heat from that process into electricity to power the spacecraft.

Instead, the CST panelists discussed Nuclear Thermal Propulsion (NTP), a technology developed in the 1960s and ’70s that relies on the splitting, or fission, of hydrogen atoms. Although fission is associated with more warlike images, the panel’s experts emphasized the safety of nuclear thermal propulsion, which would use low-enriched uranium.

An NTP-powered spacecraft would pump hydrogen propellant through a miniature nuclear reactor core. Inside this reactor core, high energy neutrons would split uranium atoms in fission reactions; those freed neutrons would smack into other atoms and trigger more fission. The heat from these reactions would convert the hydrogen propellent into gas, which would produce thrust when forced through a nozzle.

This chain reaction is the key to NTP’s power, panelist Venessa Clark, CEO of Atomos Space, a company that’s developing thermonuclear propulsion powered spacecraft to provide in-space transportation options to satellite operators, told Space.com. A soda-can-size fission reactor could propel humans to Mars in just three to four months, she said, about twice as fast as the currently estimated time it could take a chemically propelled ship to carry humans to the Red Planet. …..

But the government still has to play some role, both Clark and Thornburg said. Government agencies like NASA and the military branches may be the first clients for these commercial companies. Clark noted NASA’s recent pushes to partner with the private sector, such as its commercial lunar payload services program and its commercial crew program.

“Government players, NASA and also now the Air Force are looking at procuring services rather than funding the development of technology, which is really exciting for us,” Clark said…. https://www.space.com/commercial-nuclear-power-for-faster-space-travel.

COMMENT.  newtons_laws 06 April 2020 14:47

Quote from article”Instead, the CST panelists discussed Nuclear Thermal Propulsion (NTP), a technology developed in the 1960s and ’70s that relies on the splitting, or fission, of hydrogen atoms” Whoever wrote that needs to learn some basic nuclear physics. In nuclear thermal propulsion the atoms of a fissile heavy element (such as Uranium 235 in the designs mentioned) are split, hydrogen is the simplest and lightest of the elements and cannot be split (hydrogen atoms can however be joined together in the process of nuclear fusion, but that is a different process). Where hydrogen comes in is that in the NTP designs it is the propellant gas that is heated by the nuclear fission reactor to provide propulsion, hydrogen is chosen because being the lightest element it achieves the highest exhaust velocities.

 

April 7, 2020 Posted by | Small Modular Nuclear Reactors, USA | Leave a comment

British small nuclear reactors to help Turkey to get nuclear weapons?

Fears over nuclear Turkey after Rolls Royce reactor deal, Morning Star, 

 MARCH 25, 2020   ENGINEERING firm Rolls-Royce has struck a deal with Turkey for the production of nuclear mini-reactors, sparking fears that the British company and its international consortium partners are helping pave the way for Ankara to develop a nuclear bomb…..

It is part of a consortium including BAM Nuttall, Laing O’Rourke, National Nuclear Laboratory, Atkins and others. They will work together on designing the new power plant. ….

the plans have raised fears that Turkey’s authoritarian President Recep Tayyip Erdogan could use the development as a step towards the country becoming a nuclear-armed power.

As previously reported in the Morning Star, Turkey’s secret nuclear programme includes plans to acquire weapons of mass destruction (WMDs), including nuclear missiles.

The plans have been given the green light by Mr Erdogan’s religious adviser Hayreddin Karaman, who provided not only his blessing for the government to acquire WMDs but also encouraged its leadership to do so.

Writing in a pro-government newspaper in 2017, Mr Karaman said: “We need to consider producing these weapons, rather than purchasing them, without losing any time and with no regard to words of hindrance from the West.”

There are already some 70 US-owned nuclear warheads said to be based at Incirlik airbase near the southern of Adana.

About 40 of these are thought to be under Turkish control, though details are patchy due to a lack of openness and transparency.

In previous deals with Russia and a Japanese-French consortium, the door was left open for the development of nuclear weapons after Turkey rejected offers to include the provision of uranium and the return of the spent fuel rods used in the reactors.

Ankara would be able to use its own low-enriched uranium and reprocess the fuel rods, producing its own enriched uranium for the development of nuclear weapons.

The development has parallels with the Indian missile capability developed after the testing of plutonium produced in the Canadian-supplied Cirus reactor, which first raised the issue that nuclear technology supplied for peaceful purposes could be diverted to weapons production. https://morningstaronline.co.uk/article/b/fears-over-nuclear-turkey-after-rolls-royce-reactor-deal

March 28, 2020 Posted by | Small Modular Nuclear Reactors, Turkey, UK | Leave a comment

How will the IAEA spin the mind-boggling costs of Small Modular Nuclear Reactors (SMRs)?

IAEA launches project to examine economics of SMRs   https://www.world-nuclear-news.org/Articles/IAEA-launches-project-to-examine-economics-of-SMRs  26 March 2020,  he International Atomic Energy Agency (IAEA) is launching a three-year Coordinated Research Project focused on the economics of small modular reactors (SMRs). The project will provide Member States with an economic appraisal framework for the development and deployment of such reactors.
The IAEA said it had launched the project in response to increased interest in SMRs, noting that multiple SMR projects are currently under development (involving about 50 designs and concepts) and at varying technology readiness levels. Their costs and delivery times need to be adequately estimated, analysed and optimised, it said. Specific business models have to be developed to address the market’s needs and expectations. The market itself should be large enough to sustain demand for components and industrial support services. However, the economic impact of SMR development and deployment must be quantified and communicated to gain societal support, it said.

Participants in the research project will cover: market research; analysis of the competitive landscape (SMR vs non-nuclear alternatives); value proposition and strategic positioning; project planning cost forecasting and analysis; project structuring, risk allocation and financial valuation; business planning and business case demonstration; and economic cost-benefit analysis.

The framework they establish will be applied, in particular, to assess the economics of multiples (serial production of reactors in a factory setting), factory fabrication (conditions to be met for a factory to exist), and supply chain localisation (opportunities and impacts).

The deadline for proposals to participate in the research project is 30 April.

In early 2018, the IAEA announced it was forming a Technical Working Group to guide its activities on SMRs and provide a forum for Member States to share information and knowledge. The group, comprising some 20 IAEA Member States and international organisations, held its first meeting in April that year.

March 28, 2020 Posted by | 2 WORLD, Small Modular Nuclear Reactors | Leave a comment

Military use: that is clearly the reason for developing Small Nuclear Reactors

If the testing goes well, a commercially developed, Nuclear Regulatory Commission licensed reactor will be demonstrated on a “permanent domestic military installation.
Pentagon awards contracts to design mobile nuclear reactor Defense News 
By: Aaron Mehta    March 9  WASHINGTON— The Pentagon on Monday issued three contracts to start design work on mobile, small nuclear reactors, as part of a two-step plan towards achieving nuclear power for American forces at home and abroad.

The department awarded contracts to BWX Technologies, Inc. of Virginia, for $13.5 million; Westinghouse Government Services of Washington, D.C. for $11.9 million; and X-energy, LLC of Maryland, for $14.3 million, to begin a two-year engineering design competition for a small nuclear microreactor designed to potentially be forward deployed with forces outside the continental United States.

The combined $39.7 million in contracts are from “Project Pele,” a project run through the Strategic Capabilities Office (SCO), located within the department’s research and engineering side. The prototype is looking at a 1-5 megawatt (MWe) power range. The Department of Energy has been supporting the project at its Idaho National Laboratory.

Pele “involves the development of a safe, mobile and advanced nuclear microreactor to support a variety of Department of Defense missions such as generating power for remote operating bases,” said Lt. Col. Robert Carver, a department spokesman. “After a two-year design-maturation period, one of the companies funded to begin design work may be selected to build and demonstrate a prototype.”…….

A second effort is being run through the office of the undersecretary of acquisition and sustainment. That effort, ordered in the 2019 National Defense Authorization Act, involves a pilot program aiming to demonstrate the efficacy of a small nuclear reactor, in the 2-10 MWe range, with initial testing at a Department of Energy site in roughly the 2023 timeframe.

If the testing goes well, a commercially developed, Nuclear Regulatory Commission licensed reactor will be demonstrated on a “permanent domestic military installation by 2027,” according to DoD spokesman Lt. Col. Mike Andrews. “If the full demonstration proves to be a cost effective energy resilience alternative, NRC-licensed [reactors] will provide an additional option for generating power provided to DoD through power purchase agreements.”…….

According to Dr. Jonathan Cobb, a spokesman for the World Nuclear Association, small nuclear reactors come in three flavors. The first, small modular reactors, sit in the 20-300 MWe range and are approaching the point they will appear on market.

The second category sits from 10-100 megawatts, and have been used in transports such as icebreakers. According to Cobb, a pair of 32 MWe reactors, based on icebreaker technology, are being used aboard the Akademik Lomonosov, a Russian “floating power plant.”

The third category, covering what the Pentagon appears most interested in, is a category known as microreactors. The challenge, Cobb said, is that this group is the furthest behind technologically, with demonstrations of commercial systems targeted for “the second half of the 2020s,” putting them in the “ballpark” of what DoD is looking for with its A&S effort……

Edwin Lyman, director of the Nuclear Safety Project at the Union of Concerned Scientists, has concerns about the availability of fuel to power a proliferation of small nuclear reactors. He noted, “there are no clear plans for manufacturing the quantity of high-assay low enriched uranium, much less the production of high-quality TRISO [TRi-structural ISOtropic particle] fuel, that would be able to meet timelines this decade.”……

Lord, for her part, would not rule out working with foreign allies on the nuclear program in some way, saying “We always talk with our partners and allies about collaboration. We have many umbrella vehicles, if you will, to do that, particularly with [National Technology and Industrial Base] countries — U.K., Canada, Australia. We have a little bit of an easy button there for working back and forth with technical information.”…    https://www.defensenews.com/smr/nuclear-arsenal/2020/03/09/pentagon-to-award-mobile-nuclear-reactor-contracts-this-week/?fbclid=IwAR2MTkRUDqIkruQHY0RivblBzoSY6gubpl8gkWDUDhedVwZEGstJhHYLb6U#.XmawxEl-aJ0.facebook

 

March 19, 2020 Posted by | Small Modular Nuclear Reactors, USA, weapons and war | Leave a comment

A ruse to save the nuclear industry? Dangerous, expensive portable mini-reactors

March 16, 2020 Posted by | Small Modular Nuclear Reactors, USA | Leave a comment

Proponents of Small Nuclear Reactors need a reality check – about the STAGGERING COST

a reality check is in order. A handful of small reactors is under construction but they have been subject to huge cost overruns and delays. William Von Hoene, senior vice-president of Exelon ‒ the largest operator of nuclear power plants in the US ‒ says that no more large reactors will be built in the US and that the cost of small reactors is “prohibitive”.

Rolls-Royce sharply reduced its small-reactor investment to “a handful of salaries” in 2018 and is threatening to abandon its R&D altogether unless the British government agrees to an outrageous set of demands and subsidies.

March 10, 2020 Posted by | AUSTRALIA, business and costs, Small Modular Nuclear Reactors | Leave a comment

And they say that small nuclear reactors do not have military applications

Pentagon awards contracts to design mobile nuclear reactor Defense News

By: Aaron Mehta   3/9/20 , WASHINGTON — The Pentagon on Monday issued three contracts to start design work on mobile, small nuclear reactors, as part of a two-step plan towards achieving nuclear power for American forces at home and abroad.

The department awarded contracts to BWX Technologies, Inc. of Virginia, for $13.5 million; Westinghouse Government Services of Washington, D.C. for $11.9 million; and X-energy, LLC of Maryland, for $14.3 million, to begin a two-year engineering design competition for a small nuclear microreactor designed to potentially be forward deployed with forces outside the continental United States.

The combined $39.7 million in contracts are from “Project Pele,” a project run through the Strategic Capabilities Office (SCO), located within the department’s research and engineering side. The prototype is looking at a 1-5 megawatt (MWe) power range. The Department of Energy has been supporting the project at its Idaho National Laboratory…….

If the testing goes well, a commercially developed, Nuclear Regulatory Commission licensed reactor will be demonstrated on a “permanent domestic military installation by 2027,” according to DoD spokesman Lt. Col. Mike Andrews. “If the full demonstration proves to be a cost effective energy resilience alternative, NRC-licensed [reactors] will provide an additional option for generating power provided to DoD through power purchase agreements.”

The best way to differentiate between the programs may be to think of the A&S effort as the domestic program, built off commercial technology, as part of an effort to get off of local power grids that are seen as weak targets, either via physical or cyber espionage. Pele is focused on the prototyping a new design, with forward operations in mind — and may never actually produce a reactor, if the prototype work proves too difficult…… https://www.defensenews.com/smr/nuclear-arsenal/2020/03/09/pentagon-to-award-mobile-nuclear-reactor-contracts-this-week/

March 10, 2020 Posted by | Small Modular Nuclear Reactors, USA, weapons and war | Leave a comment

A sceptical look at NuScam’s small nuclear reactor plans

Recent experience supports skepticism. Westinghouse worked on an SMR design for a decade before giving up in 2014. Massachusetts-based Transatomic Power, a nuclear technology firm, walked away from a molten salt SMR in 2018, and despite an $111 million dollar infusion from the US government, a SMR design from Babcock & Wilcox, an advanced energy developer, folded in 2017. While the Russians have managed to get their state-funded SMR floating, its construction costs ran over estimates by four times, and its energy will cost about four times more than current US nuclear costs. 
Eventually, every nuclear conversation turns to radioactive waste and safety. SMRs using a pressurized water reactor will continue to generate highly radioactive spent fuel, yet no country has a permanent solution for how to safely store this kind of waste.  ……..
small modular reactors suffer from many of the same problems as large reactors, most notably safety issues
“It would be irresponsible for the NRC to reduce safety and security requirements for any reactor of any size.”

The Smaller Is Better Movement in Nuclear Power, Are miniature reactors really safer? Mother Jones  LOIS PARSHLEY, 8 Mar 20, 

Huge computer screens line a dark, windowless control room in Corvallis, Oregon, where engineers at the company NuScale Power hope to define the next wave of nuclear energy. Glowing icons fill the screens, representing the power output of 12 miniature nuclear reactors. Together, these small modular reactors would generate about the same amount of power as one of the conventional nuclear plants that currently dot the United States—producing enough electricity to power 540,000 homes. On the glowing screens, a palm tree indicates which of the dozen units is on “island mode,” allowing a single reactor to run disconnected from the grid in case of an emergency. 

This control room is just a mock-up, and the reactors depicted on the computer screens do not, in fact, exist. Yet NuScale has invested more than $900 million in the development of small modular reactor (SMR) technology, which the company says represents the next generation of nuclear power plants. NuScale is working on a full-scale prototype and says it is on track to break ground on its first nuclear power plant—a 720-megawatt project for a utility in Idaho—within two years; the US Nuclear Regulatory Commission has just completed the fourth phase of review of NuScale’s design, the first SMR certification the commission has reviewed. The company expect final approval by the end of 2020. The US Department of Energy has already invested $317 million in the research and development of NuScale’s SMR project.

Continue reading

March 9, 2020 Posted by | business and costs, Small Modular Nuclear Reactors | Leave a comment

Busting the lies of the Australian Government about “new” nuclear reactors

The core propositions of non-traditional reactor proponents – improved economics, proliferation resistance, safety margins, and waste management – should be reevaluated.

Before construction of non-traditional reactors begins, the economic implications of the back end of these nontraditional fuel cycles must be analyzed in detail; disposal costs may be unpalatable………. reprocessing remains a security liability of dubious economic benefit

Non-traditional” is used to encompass both small modular light water reactors (Generation III+) and Generation IV reactors (including fast reactors, thermal-spectrum molten salt reactors, and high temperature gas reactors)

March 3, 2020 Posted by | politics, Reference, spinbuster, technology | Leave a comment

USA desperately pushing the fantasy of Small Nuclear Reactors to India

March 2, 2020 Posted by | India, marketing, Small Modular Nuclear Reactors, USA | Leave a comment

A Brief Study of Molten Salt Reactors

A Brief Study of Molten Salt Reactors  https://nonuclearpowerinaustralia.wordpress.com/2020/03/01/a-brief-study-of-molten-salt-reactors/  3 Mar 20

Source:
Burning waste or playing with fire? Waste management considerations for non-traditional reactors, Lindsay Krall &Allison MacfarlanePages 326-334 | Published online: 31 Aug 2018 Bulletin of the Atomic Scientists, Volume 74, 2018. Issue 5 at https://www.tandfonline.com/doi/abs/10.1080/00963402.2018.1507791?scroll=top&needAccess=true&journalCode=rbul20

Author information:

Lindsay Krall is a post-doctoral Macarthur fellow at the George Washington University Institute for International Science and Technology Policy. Her research focuses on policies for the back end of the nuclear fuel cycle, particularly as they pertain to radionuclide transport in the environment, systems and organizations for waste storage and disposal, and the long-term behavior of spent fuels from advanced reactors. Allison Macfarlane is Professor of Public Policy and International Affairs at the George Washington University’s Elliott School of International Affairs. She directs the school’s Institute for International Science and Technology Policy Program and is the former chairman of the US Nuclear Regulatory Commission. Macfarlane was a member of the Blue Ribbon Commission on America’s Nuclear Future from 2010-2012.

“Abstract:

Nuclear energy-producing nations are almost universally experiencing delays in the commissioning of the geologic repositories needed for the long-term isolation of spent fuel and other high-level wastes from the human environment. Despite these problems, expert panels have repeatedly determined that geologic disposal is necessary, regardless of whether advanced reactors to support a “closed” nuclear fuel cycle become available. Still, advanced reactor developers are receiving substantial funding on the pretense that extraordinary waste management benefits can be reaped through adoption of these technologies. Here, the authors describe why molten salt reactors and sodium-cooled fast reactors – due to the unusual chemical compositions of their fuels – will actually exacerbate spent fuel storage and disposal issues. Before these reactors are licensed, policymakers must determine the implications of metal- and salt-based fuels vis a vis the Nuclear Waste Policy Act and the Continued Storage Rule.” end quote.Emphasis added for clarity. Mr. O’Brien and Mr. Bernardi need to consider the scientific and technical reality behind the gloss they want to disseminate.

March 2, 2020 Posted by | 2 WORLD, Small Modular Nuclear Reactors | Leave a comment