Global nuclear industry threatened as safety problems revealed at Flamanville reactor
Unfinished nuclear plants raise safety doubts. April 13, 2015 A new generation of giant reactors, meant to provide fresh hope for nuclear power in Europe, has been found to have a serious safety problem. By Paul Brown Climate News Network LONDON − The future of the world’s biggest nuclear reactor, under construction at Flamanville in northern France, is now in doubt after a serious flaw was found in its steel pressure vessel.
Examination has shown that the steel contains too much carbon, which can weaken the vessel’s structure and breaches safety rules. The Chinese, who have two similar 1,600 megawattEuropean Pressurised Reactors under construction, have been warned that they too may share the potentially catastrophic problem.
Investigations are continuing to check whether the problem can be rectified, but whatever happens it will add more delays and greater costs to the already troubled projects.
The problem also casts doubt on the much-heralded nuclear renaissance in Europe, where EPR reactors are being built not only in France but also in Finland.
Four more are planned for Britain, where they form a cornerstone of the UK government’s policy to fight climate change. A decision on whether to go ahead with the first two in the UK has already been postponed twice, and this revelation will cause further delays.
The French nuclear engineering firm Areva, involved in the EPR’s design and development, found the flawed steel and reported the problem to the country’s nuclear regulator, ASN, which has ordered an investigation. The French energy minister, Ségolène Royal, says the results of tests to check the extent of the problem will be released in October. Continue reading
Danger of nuclear reactors as explained by Alvin Weinberg
Top US Nuclear Physicist: “Iodine-131 will be lethal after ingestion of 30 billionths of a gram” — Main worry is not a Chernobyl-type accident, rather it’s a melt-through of containment vessel — “Not possible to disprove China Syndrome” http://enenews.com/top-nuclear-physicist-iodine-131-will-be-lethal-after-ingestion-30-billionths-gram-main-worry-chernobyl-type-accident-melt-containment-vessel-possible-disprove-china-syndrome?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+ENENews+%28Energy+News%29 The hazards of nuclear power plants and the related nuclear industries are reviewed
Alvin M. Weinberg, nuclear physicist (Director of Oak Ridge National Lab and pioneered the pressurized water reactors and boiling water reactors used in nuclear power plants, worked on the Manhattan Project, appointed to President’s Science Advisory Committee during the Eisenhower and Kennedy administrations), 1973:
- [A]re there concerns regarding the possibility that these systems may malfunction and cause hazard to people and to the environment? This is a perfectly legitimate question that deserves serious and thoughtful consideration; and it is this aspect of the matter that I shall address… The potential hazard of a nuclear system arises from the toxicity both of the materials that keep the system burning and from the fission product ashes. Plutonium-239… is lethal to man in doses of about 16 thousandths of a gram if ingested in the lungs; Strontium-90, with a half-life of 30 years, will be lethal if about 70 millionths of a gram is ingested; Iodine-131, with a half-life of eight days, will be lethal after ingestion of only about 30 billionths of a gram.
- As I have said, even during the Manhattan Project, we realized that a nuclear reactor could undergo what is known as an excursion [see Chernobyl] – that is, if too many control rods were removed, the reactor power could surge to dangerous levels. This, however, is not the main worry, for such excursions are inherently self-limiting both in time and magnitude.
- Rather, the worry is that in a very high-powered reactor, immediately after the chain reaction has stopped, the fission products at least momentarily continue to generate 7% as much energy… Thus a high-powered chain reactor must continue to be cooled for a considerable time after shutdown if fuel meltdowns are to be avoided. It was Edward Teller who some 25 years ago insisted with great prescience that in these respects nuclear reactors were potentially dangerous, and therefore they should be subjected to the most searching kind of technical scrutiny… The response of the engineer… was to build a… containment vessel around every reactor; the second [was] various back-up safety systems… to prevent the reactor core from melting. Why bother with the back-up cooling systems if the containment vessel in final analysis will catch whatever radioactive debris might be created in an accident and thus prevent harm befalling the public? And indeed this was the attitude in the earliest days… As long as reactors were relatively small we could prove by calculation that even if the coolant system and its back-up failed, the molten fuel could not generate enough heat to melt itself through the containment However, when reactors exceeded a certain size, then it was no longer possible to prove by calculation that an uncooled reactor fuel charge would not melt through its containment vessel. This hypothetical meltthrough is referred to as the China Syndrome for obvious reasons. Since we could not prove that a molten fuel puddle wouldn’t reach the basement of a power reactor, we also couldn’t prove whether it would continue to bore itself deeper into the ground. Whether or not the China Syndrome is a real possibility is moot. The point is, however, that it is not possible to disprove its existence. Thus, for these very large reactors, it is no longer possible to claim that the containment shell, which for smaller reactors could be relied upon to prevent radioactivity from reaching the public, was sufficient by itself. In consequence, the secondary back-up cooling systems… must now be viewed as the ultimate emergency protection against the China Syndrome… if one is trying to be practically 100 percent sure of always being able to cope with a reactor meltdown, then one must… be absolutely certain that the engineered safety features, particularly the emergency core cooling system, will work as planned.
French authorities warn China on safety issues regarding rectors under construction in Guangdong
The French reactor, at the Flamanville EPR nuclear power plant, is a third-generation pressurised water reactor of similar design and build to the two reactors being installed at a new plant in Taishan. Quality inspectors at Flamanville found an abnormally high concentration of carbon in steel parts capping the reactor vessel’s top and bottom during a series of tests carried out by French nuclear company Areva, which is building the reactor.
The excessive carbon would lead to “lower than expected mechanical toughness values”, nuclear regulator ASN said in a press statement on its website, without giving more details.
The toughness of the reactor shell was crucial because it relates to the ability of the material to withstand the propagation of cracks. The steel shell of a reactor has to be extremely tough to withstand decades of operation.
It was unknown whether the Taishan reactors had the same problem, but the issue might be worth China’s concern, the French authorities said. ASN had “informed” relevant foreign counterparts, the statement said.
“The vessel of a pressurised water reactor is equipment that is particularly important for safety,” the ASN added. “It contains the fuel and takes part in the radioactivity second containment barrier.”
The problematic steel parts at Flamanville were made by Creusot Forge, a subsidiary of Areva, which also made the same parts for the two reactors in Taishan with similar manufacturing technology, according to a Reuters report. It was unclear whether the Taishan reactors had undergone similar tests before they were shipped to China……..http://www.scmp.com/news/china/article/1762861/french-warning-nuclear-reactors-being-built-guangdong
The grim facts on the unsafety of Davis Besse, Columbia, Diablo, New York and other nuclear power stations
The Real Nuclear Threats, CounterPunch 12 Apr 15 by MIRIAM GERMAN “……….These are just some of the facts about Davis-Besse.
● Because it was built in a flood plain, a 1972 Lake Erie storm caused massive flooding of the entire construction site including the pre-operational reactor.
● In October 1977, a relief valve stuck.
● Uranium fuel must be submerged in water (coolant) at all times to prevent a meltdown. In June 1985, Davis Besse had a loss-of-feedwater accident. The Nuclear Regulatory Commission closed the plant for a year.
● A June 1998 tornado caused loss of external electric power.
● In March 2002, neglected, leaking boric acid in the coolant water had eaten through more than seven inches of the steel reactor lid, leaving only a 3/16″ liner to prevent radiation release. The plant closed for two years, costing ratepayers $600 million. Davis-Besse was fined $33.5 million, the largest in NRC history.
● The corroded lid was replaced before restart in 2004, but in 2010, cracks were found in this new lid, forcing its replacement in 2011.
● To replace aging, deteriorating, damaged parts, an unprecedented four large cuts have been made through the Davis-Besse concrete shield building which prevents release of radiation. Starting in 2011, cracks and voids were discovered in the building’s concrete.
Moniz must look over here, below his feet on US ground, to recognize and acknowledge the bomb fields laying in wait that you still believe are safe, inexpensive and necessary, but which I call ancient relics of poor technology based on the idiocy of a few terrible ideas by self-important arrogant fools who believed nukes would save the world but would instead, kill the very Earth we inhabit. What side of the gambling table are you on? Remember, the cards have already been shown. Fukushima, Chernobyl, Three Mile Island. Hanford.
There is no peaceful nuke and there is no peace with nukes. There is only a mirage.
Columbia Generating Station. Richland, WA. Located on the Columbia River. CGS was built on twelve fault lines. It was not known at the time but now we have facts. It is not built to withstand an earthquake of the 9.0 magnitude the NW is expecting any day. Not even close. With facts, we are armed with the ability to make changes for the sake of humanity. But we only care about being armed for war. There is no containment around the CGS fuel pool. The fuel pool is five stories high. Think Fukushima. Really. Think Fukushima. CGS is the same kind of nuclear reactor as Fukushima. CGS sits ten miles from 56 million gallons of highly radioactive nuclear waste at Hanford. If a meltdown or explosion happens at CGS, it will take Hanford with it. There will be no way to get in to the area to clean it up due to the massively high levels of radiation. The Columbia River flows directly into the Pacific. CGS has problems with the monitoring stacks just about every two to three weeks. They cannot monitor levels of radiation going into the environment from the plant properly without these stacks. On top of all of this, we have records of drug abuse from managers and workers at the plant caught stoned or drunk during surprise drug testing, so many records that we have a spreadsheet that we add to periodically. Would you like to live near CGS?
Where is the IAEA? They are waiting to be flown to Iran.
Diablo Canyon. Corruption. PG&E. Water Bureau. Illegal dumping of hot water into the Pacific. Fault lines. To see a photo of the fault lines at the base of Diablo Canyon and on out just a bit into the ocean off the coast of California is to understand a vision of insanity……..
New York City. Home to well over eight million people and the Indian Point Nuclear Power Plant, just twentyfive miles from the Bronx. Here we have a known leaking nuke plant but the IAEA and all of their grave concerns about safety in Iran can be found no where close to home. Indian Point leaks Tritium. Do you know how bad it is to have that in the ground water, drinking water or rivers and lakes? The Big Apple can turn to molten corium as far as the IAEA, the DOE and the NRC are concerned.
Let’s mention MOX fuel since Kerry and Moniz talk so much lately about oversight and care and safety and transparency from the IAEA to Iran. Plutonium from dismantled nuclear weapons can get used as fuel in nuke plants creating more heat and radioactivity than uranium if it explodes while causing twice as many civilian cancers as the same explosion using uranium. Fact: MOX fuel is the easiest type of fuel to explode; it is the Viagra for nuclear weapons. Yet knowing that it’s the easiest to explode, nuclear engineers still decided to put MOX fuel into nuclear power plants. Pure insanity…….
Miriam German is the director of RadCast.org. She founded No Nukes NW in 2012. http://www.counterpunch.org/2015/04/10/the-real-nuclear-threats/
Fears of a nuclear Electro-Magnetic Pulse (EMP) cause Pentagon to re-open Cheyenne mountain bunker
EMP Nuclear Attack Fears Have US Reopen Cheyenne Mountain, ARUTZ SHEVA Israel International News, By Mark Langfan 4/11/2015, Days after Iran deal, Pentagon acts fearing nuclear missile attack that would burn out America’s electronic-based defenses. The Pentagon has decided to reopen the Cheyenne Mountain Air Defense facility, which housed the heart of America’s air and missile defense of North America. The facility had been mothballed in a “cost-saving” move in 2006.
Last week, Admiral William Gortney, head of US NORAD (North American Aerospace Defense Command) and US Northern Command, reversed that decision and announced the Pentagon was spending an opening ante of $700 million to oversee reactivation of the Cheyenne mountain-embedded facility.
The reason – the Pentagon’s fears of a nuclear Electro-Magnetic Pulse (EMP) attack by a missile that would burn out America’s overly-dependent defense, which is based on modern electronics.
US NORAD and US Northern Command aren’t just acronyms. They represent the last-ditch American defense of the continental United States homeland. NORAD originally stood for North America Air Defense Command, but now stands for North American Aerospace Command. US Northern Command is the area-specific designation of the US military command that is responsible for the continental United States homeland.
Given the current US military fear of an inter-continental ballistic (ICBM) missile attack with an EMP nuclear-device, Admiral Gortney explained that “because of the very nature of the way that Cheyenne Mountain’s built, it’s EMP-hardened. And so, there’s a lot of movement [in the Pentagon] to put [military] capability into Cheyenne Mountain and to be able to communicate in there.”
In early 2013, this author warned against a similar Iranian “Fatwa-compliant” EMP attack against Saudi Arabia, and a North Korea EMP attack against South Korea.
In an even more startling admission, Admiral Gortney revealed that his “primary concern” was whether the Pentagon was “going to have the space inside the [Cheyenne] mountain for everybody who wants to move in there, and I’m not at liberty to discuss who’s moving in there.”
The Cheyenne mountain bunker is a half-acre cavern that was carved into a mountain in the 1960s that was originally designed to withstand a Soviet nuclear attack. During the Cold War, the United States feared a Soviet nuclear attack scenario that would feature an opening Soviet “EMP decapitation” nuclear attack.
Such a nuclear attack was not the launch of a massive Soviet nuclear first-strike against American cities, but instead, a first-strike Soviet “EMP decapitation” attack that would explode a nuclear device high-above the United States, burning out all of America’s command and control communication systems, and thus severing America’s President from being able to order the US military to retaliate.
By first electronically destroying America’s communications systems, the Soviets would thus have “decapitated” the US’s ability to respond to a secondary more massive follow-on Soviet nuclear attack on American cities.
Thus, a successful Soviet nuclear EMP attack on the US would have “trumped” the concept of MAD, or Mutually Assured Destruction, because America would have been unable to retaliate and destroy the Soviet Union in response to a Soviet nuclear attack.
During the Cold War, airmen stationed inside the massive complex were poised to send warnings and firing codes that could trigger the launch of America’s vast web of nuclear missiles. Now, in light of the latest nuclear EMP dangers hanging over the United States, the US military, and the United States of America- itself, once again hopes to be protected by the mountains of Colorado…….http://www.israelnationalnews.com/News/News.aspx/193883#.VSrsY9yUcnk
Who’s to blame for the faults in San Onofre Nuclear Plant: not us -says NRC
NRC: Nuclear plant failure not our fault UT San Diego, By Morgan Lee .APRIL 10, 2015 As it turns the page on the breakdown of the San Onofre nuclear plant, the U.S. Nuclear Regulatory Commission is standing by its role in overseeing the replacement of steam generators that led to a radiation leak and the facility’s early retirement in 2013.
The safety agency also is warning the nuclear power industry that the destructive vibrations among generator tubes carrying radioactive water that occurred at San Onofre could emerge at other reactors over time.
A detailed memo by nuclear commission staff on the lessons learned at San Onofre has concluded that efforts by plant operator Southern California Edison to avoid a more-detailed review of the generators by safety regulators are not necessarily to blame in the breakdown of the plant. Responsibility lies instead with design mistakes overseen by Edison, according to the 70-page memo quietly released last month……..
The commission is directing the nuclear power industry to revise design guidelines that do not sufficiently address the kind of destructive tube vibrations that disabled the replacement generators at San Onofre.
A letter from the agency to industry engineers last year warned that “events at San Onofre not only raise questions about industry standards for designing and fabricating steam generators, but also raise questions about the operation of existing steam generators.” It cited no immediate safety concerns but said active generators could become susceptible as conditions change.
A 2012 radiation leak at San Onofre was traced to rapid wear on generator tubes that carry radioactive water that circulates through the reactor core.
Meanwhile, the nuclear commission is preparing to dismiss formal accusations that a more-thorough safety review of the San Onofre generators was warranted. That complaint was filed by the environmental group Friends of the Earth in 2012……….http://www.utsandiego.com/news/2015/apr/10/nrc-stands-by-process-at-onofre/
Connecticut’s sole nuclear under scrutiny for security issue
Federal energy regulators and a local oversight panel are set to meet to discuss safety issues at Connecticut’s sole nuclear plant.
Nuclear Regulatory Commission staff members and the state Nuclear Energy Advisory Council will meet in Waterford Tuesday to review operations at the Millstone nuclear plant.
Millstone’s Unit 3 is under heightened oversight due to problems related to the plant’s auxiliary water pump. It’s one of several used to help cool down the reactor.
The Nuclear Regulatory Commission announced increased oversight April 2. The agency didn’t disclose the security problem, but said Millstone’s problem rated a low-significance “greater than green” on a scale ranging from green for very low safety or security significance to red for high safety or security significance.
Unless the finding is successfully appealed, it will result in additional scrutiny. http://www.wfsb.com/story/28780712/us-nuclear-regulators-to-review-millstone-with-state-panel#ixzz3X8UtUviJ
China’s new nuclear reactors lack required modern safety features
Chinese nuclear reactors ‘did not receive latest safety tests before installation’ French manufacturer said recent test detected fault that could lead to cracks in reactor shell, South China Morning Post , 11 April, 2015 Stephen Chen chen.binglin@scmp.com Two new nuclear reactors in Taishan, Guangdong, did not undergo the same quality tests as a similar reactor in France that was found to have weak spots prone to cracks.
Special tests at the Flamanville EPR nuclear power plant were only carried out last year after France tightened its nuclear safety regulations, France’s Nuclear Safety Authority (ASN) told the South China Morning Post.
No such tests were conducted on the two third-generation EPR Taishan reactors before French nuclear manufacturer Areva shipped them to China. That meant the 50-billion yuan (HK$63 billion) Taishan plant, located about 80km west of Zhuhai and Macau, could be plagued by the same problem and not be detected.
Weak spots in a reactor’s steel shell is a serious defect – once installed, the shell cannot be replaced throughout the reactor’s 60-year lifespan.
The tests in France found that excessive carbon in the steel that formed the reactor’s top and bottom could lead to unexpected cracks that could later spread.
The news comes as a shock to China’s burgeoning nuclear sector. With the completion date of the first project phrase expected by the end of this year, the Taishan EPR plant was a landmark project for China’s nuclear sector.
The plant’s two advanced 1.75GW pressurised water reactors were to be the world’s largest single-piece electric generators and their operation was said to be the safest, too.
Now it is not certain whether the Taishan reactors would comply with France’s stricter standards……….http://www.scmp.com/news/china/article/1763315/taishan-nuclear-reactors-did-not-receive-most-updated-safety-tests
USA’s Nuclear Regulatory Commission gambles with safety, using legalistic jargon
US NRC Playing Brazen Legalese Games with Safety (Reactor Pressure Vessel Embrittlement) at Palisades Nuclear Power Station and Elsewhere, Mining Awareness, 9 Apr 15 In the April 18, 2013 US NRC “Summary of the March 19, 2013 Public Meeting Webinar Regarding Palisades Nuclear Plant” one finds brazen legalese statements by the US NRC in order to defend one of Entergy’s aging reactors, Palisades (Note that the NRC also had lawyer(s) working on the corporate side pushing the judge to ignore current concerns at Davis Besse Nuclear Power Station too. Davis Besse and Palisades endanger the largest surface fresh water system on earth.) The NRC inadvertently points out that, most likely, no US nuclear reactor has the more resistant materials required for safety starting in 1977.
Someone asked the NRC:
“Which are the other most embrittled plants in the U.S.? How many PWRs will reach their screening criteria in the next 10 years?”
The NRC responded:
“The NRC currently estimates that the following plants will exceed the PTS screening criteria of 10 CFR 50.61 during their 20-year period of operation beyond their original 40 year licenses. Updated fluence calculations, capacity factors changes, power uprate, new surveillance data, and improved material property information (i.e., the use of direct rather than correlative measurements of the vessel material’s resistance to fracture) can change these estimates…
1. Point Beach 2 (2017)
2. Palisades (2017)
3. Diablo Canyon 1 (2033)
4. Indian Point 3 (2025)
5. Beaver Valley 1 (2033)”
http://pbadupws.nrc.gov/docs/ML1310/ML13108A336.pdf
(It’s not clear if these years are the license expiration dates, or when they are estimated as in most danger of reactor pressure vessel fractures, minus uprates etc, which increase stress and put them at risk more quickly. PTS is Pressurized Thermal Shock. Point Beach is also on the Great Lakes (Lake Michigan, as is Palisades)
According to the NRC, Entergy-Palisades didn’t violate standards because there weren’t any! “Palisades did not violate the NRC’s PTS safety standards in 1981 since the NRC did not have any regulations pertaining to PTS until June 26, 1984.”
The NRC inadvertently explains that US Reactors are not up to even 1977 standards:
“For new plants, the reactor vessel beltline materials should have the content of residual elements such as copper, phosphorus, sulfur, and vanadium controlled to low levels. The levels should be such that the predicted adjusted reference temperature at the ¼ T position in the vessel wall at end of life is less than 200 °F. [These] recommendations … will be issued in evaluating construction permits docketed on or after June 1, 1977.”http://pbadupws.nrc.gov/docs/ML1310/ML13108A336.pdf
“There has been no ground-breaking on new nuclear plants in the United States since 1974. Up until 2013, there had also been no ground-breaking on new nuclear reactors at existing power plants since 1977.”http://en.wikipedia.org/wiki/Nuclear_power_in_the_United_States
Since permitting would normally come before ground-breaking this appears to mean that no nuclear reactors currently in operation are up to the 1977 standards for prevention of embrittlement. 1977 was 37-38 years ago. Jimmy Carter was President and the Cold War was far from over. Apple home computers weighed 11.5 pounds excluding the screen, which probably weighed almost as much. Apple Ipad air weighs less than one pound.
The NRC further states:
“In conclusion, there was no violation of NRC requirements concerning PTS at Palisades. Had Palisades ever violated PTS requirements the NRC would have shut down the plant.
Regulatory Guides do not contain requirements, only recommendations.”http://pbadupws.nrc.gov/docs/ML1310/ML13108A336.pdf
So, since the “Regulatory Guides only contain recommendations”, anything goes? What’s the NRC for then? Making the US tax-payer pay for lawyers and staff to protect the interests of the nuclear power industry? Safety doesn’t matter? Regulations are supposed to be laws. Aren’t they?
Where did concern about the US budget go anyway? A good place to start cuts is the US NRC, which has long been called an instance of regulatory capture. ……..https://miningawareness.wordpress.com/2015/04/09/us-nrc-playing-brazen-legalese-games-with-safety-reactor-pressure-vessel-embrittlement-at-palisades-nuclear-power-station-and-elsewhere/
Nuclear submarine on fire – luckily it was unarmed
Unarmed Russian nuclear submarine catches fire in shipyard, Stuff.co NZ, THOMAS GROVE , April 8 2015 Firefighters struggled to put out a blaze on a nuclear submarine as it underwent repairs at a shipyard in Russia’s northern province of Arkhangelsk on Tuesday (Wednesday NZT), Russian news agencies reported.
The agencies quoted sources as saying there were no weapons on board. Nobody was hurt, they said, although RIA news agency said the dry dock where the vessel was being repaired may have to be submerged under water to help extinguish the blaze.
The Emergencies Ministry declined comment on the reports of the fire at the Zvyozdochka shipyard, where the agencies said the 155-metre-long (just over 500 feet) 949 Antei submarine was being repaired.
“There is a fire on the submarine. We are fighting the fire now,” a shipyard source told Interfax news agency………http://www.stuff.co.nz/world/europe/67640388/unarmed-russian-nuclear-submarine-catches-fire-in-shipyard
Historical record indicates increased risk of a Nuclear Reactor Disaster
The Risk of a Nuclear Reactor Disaster Cultural Psychology, Satyagraha, 2 April 15
Utility companies, to support their claims of nuclear reactor safety, present artificial risk estimates — such as no more than one core meltdown per 30,000 years of reactor operation — that are based on faulty assumptions, guessing, and unvalidated theoretical models. Our only solid source of information on reactor risk is the historical record. According to the International Atomic Energy Commission (2013), as of 2012 a total of 581 civilian reactors had logged 15,247 years in operation. There have also been three major reactor accidents: Fukushima, Chernobyl, and Three-Mile Island (counting the three reactor accidents at Fukushima as a single event). This produces a rate of 3/15247 or 0.000197 such accidents per reactor-year. That number may seem small, but, as we shall see, it actually indicates extreme danger.
The number calculated above is an empirical rate based on a limited sample. What we really seek is the long-run population risk rate. (Similarly, we might flip a coin twice and observe heads both times, making the empirical proportion 1.0, but the long-run population rate is 0.50.)…….Assuming that 100 reactors operate in the United States for an average of 25 years each, the conservatively estimated Total Risk of at least one meltdown accident ranges from about 60% to 72%. (Over 40 years, even the nonconservative estimate is above 50%.) These estimates are consistent with other recent analyses (e.g., Ghys 2011; Smythe 2011; Lelieveld et al. 2012; Ha-Duong & Journé 2014).
One can easily imagine a utility company looking at these results and countering: “You can’t go by past events. The industry learns from mistakes. Reactors today are better designed and safer than those at Chernobyl and Three-Mile Island.” However it is unlikely that today’s American reactors are better designed than those at Fukushima. Further, more complex designs supply new opportunities for malfunction. And human error is always a danger.
In short, if we base risk estimates on the historical record — our best, most objective, and perhaps only reliable source of data — it is more likely than not that a serious accident will occur at one or more US reactors within the next 25 years. The unacceptability of this risk becomes even more salient when we consider that we are all neighbors. An accident that happens anywhere in the country is not “the other guy’s problem.” We’re all in this together.
References……..https://satyagraha.wordpress.com/2015/04/01/the-risk-of-a-nuclear-reactor-disaster/
Shipping incident results in higher NRC oversight for Vogtle nuclear power plant
Nuclear Regulatory Commission increases oversight for Plant Vogtle following shipping incident, Augusta Chronicle By Meg Mirshak Staff Writer April 1 2015 The oversight includes an additional inspection at the commercial power plant near Waynesboro, Ga. about 26 miles southeast of Augusta, according to a NRC news release…….The violation had “low-to-moderate safety significance,” and it posed a risk to the public because of concerns the closure system on the type of cask used could fail if involved in an accident during shipping, according to the letter. …….http://chronicle.augusta.com/latest-news/2015-03-31/nuclear-regulatory-commission-increases-oversight-plant-vogtle-following
World’s largest moveable structure being built – the Chernobyl sarcophagus
Chernobyl: Containing the world’s worst nuclear accident BBC News [excellent photographs] David Shukman Science editor 18 March 2015 Rising above the scene of the world’s worst nuclear accident is the spectacular sight of the largest moveable structure ever created on land.The complex of nuclear power plants at Chernobyl has dominated this corner of northwest Ukraine for decades but the new construction towers over it all.
The project is to build what is called a New Safe Confinement – in effect, a giant cover, a kind of dome, to fit over the building that houses the reactor that exploded on 26 April, 1986.
The radiation immediately above the reactor is still far too intense for the new enclosure to be built exactly where it is needed – anyone working there can only stay very briefly. So adjacent land has been cleared and then decontaminated – a massive task in itself – to allow the new structure to be assembled before being manoeuvred into position.
Sealed future Large enough to accommodate a couple of Boeing 747s or the Stade de France in Paris, and almost tall enough to hold St Paul’s Cathedral in London, the giant cover stands on a system of massive rails.
When complete, it will weigh an extraordinary 31,000 tonnes. Over several days, it will be rolled along its special track so as to just slide over the reactor building – a very tight fit – in order to seal it in.
There is still a 30km exclusion zone around the Chernobyl site
The task is “of a complexity and uniqueness we have never faced before”, according to Vince Novak, who runs the nuclear safety department of the European Bank for Reconstruction and Development. He has led the international drive to make Chernobyl less dangerous.
“Until this project is in place, we will not be safe,” he said during a media visit to the site.
“The ultimate objective is to protect the environment, contain the threat and deal with the radioactive material inside.”
Dangerous mix
This material is a nightmare mix of more than 100 tonnes of uranium, one tonne of plutonium, and other highly radioactive elements, formed into a previously-unseen lava-like mass.
Added to that are several thousand tonnes of sand and boron dropped on to the site by emergency workers at the time.
Vast quantities of radioactive liquids and dust are also present inside a reactor building that has itself long been in danger of collapse. In the months following the accident – when the reactor exploded and burned for 10 days – the authorities attempted to smother the building in an emergency “sarcophagus” of concrete and steel.
But this was only ever intended to be a temporary fix and has needed urgent repairs to try to keep it stable and intact………http://www.bbc.com/news/science-environment-31939778
Damage to concrete is a threat to nuclear reactors
Part II: Nuclear Power Stations Need Testing for Concrete Damage – Comment Deadline Monday, March 30th, 2015 by miningawareness Deadline is on Monday, March 30th, 11.59 Eastern Time (DC) – one minute to midnight- for whether the US NRC should use proper methods to detect concrete degradation at Nuclear Power Stations: “The petitioner requests that the NRC amend its regulations to improve identification techniques against ASR concrete degradation at U.S. nuclear power plants. The petitioner suggests that the reliance on a visual inspection does not ‘adequately identify Alkali-Silica Reaction (ASR), does not confirm ASR, or provide the current state of ASR damage (if present) without petrographic analysis under current existing code.”http://www.regulations.gov/#!docketDetail;D=NRC-2014-0257 (Comment at link; can be anonymous.) It is critically important to also ask for ultrasonic testing for damage to the nuclear reactor pressure vessel, even though it is not on the docket. See:https://miningawareness.wordpress.com/2015/03/03/nuclear-reactor-cracks-widespread-disease-scourge-warns-nobel-in-chemistry-nominee/
The average age of US commercial nuclear reactors is 34 years with the oldest being over 45 years old (EIA, 2015). Even in the best of circumstances, concrete suffers age related damage. But, nuclear power stations suffer from extreme conditions. According to William et. al., for the NRC (2013): Continue reading
New York endangered by High-Pressure Gas Pipeline Near a Nuclear Plant
Why on Earth Did the Feds Approve a High-Pressure Gas Pipeline Near a Nuke Plant? Nuclear safety expert: “We’re talking tens of millions of people who could be endangered.” By Alison Rose Levy / AlterNet March 27, 2015 A gas explosion leveled two buildings in New York’s East Village this past week, with two neighboring structures damaged, one still at risk for collapse, and 22 people injured, four of them severely. The fire raged from early afternoon into the next morning with more than 250 firefighters responding. Just over a year ago, a gas explosion leveled two buildings in Harlem, killing eight people. The National Transportation Safety Board has not yet released its conclusions as to what caused the Harlem fire.
While fires, explosions, plane crashes and others disasters are considered newsworthy, drawing people and the media to the scene, the quiet dramas of government policy, approval and planning that set the stage for—or can prevent—disastrous events are every bit as riveting……..
Since March 3, 2015, three high-risk conditions have begun converging north of the New York metro area: the aging Indian Point nuclear power plant; a high pressure, high-volume gas pipeline; and an authorization by the Federal Energy Regulatory Commission (FERC) to build a new segment of the pipeline in close proximity to the nuclear plant. In the few weeks since the authorization, apart from some felled trees in Yorktown Heights, there have been few visible signs that millions of New Yorkers may soon be living with the increased risk of a fiery, pipeline-triggered nuclear accident, 37 miles north of the City………http://www.alternet.org/environment/why-earth-did-feds-approve-high-pressure-gas-pipeline-near-nuke-plant
1 This Month
19 November – Webinar – The Reality of Reprocessing
Time: 11:00 AM Pacific Time (US & Canada) / 2:00 PM Eastern / 7:00 PM UK / 8:00 PM CET
Register for the Zoom Event Here
Shut down the radiation-damaged Heysham nuclear reactors now
To see nuclear-related stories in greater depth and intensity – go to https://nuclearinformation.wordpress.com
Say No to NASA’s Reckless Nuclear Reactor on the Moon
Say No to NASA’s Reckless Nuclear Reactor on the Moon
-
Archives
- November 2026 (74)
- October 2026 (302)
- September 2026 (339)
- August 2026 (330)
- July 2026 (355)
- June 2026 (287)
- May 2026 (306)
- April 2026 (356)
- March 2026 (251)
- February 2026 (267)
- January 2026 (308)
- December 2025 (358)
-
Categories
- 1
- 1 NUCLEAR ISSUES
- business and costs
- climate change
- culture and arts
- ENERGY
- environment
- health
- history
- indigenous issues
- Legal
- marketing of nuclear
- media
- opposition to nuclear
- PERSONAL STORIES
- politics
- politics international
- Religion and ethics
- safety
- secrets,lies and civil liberties
- spinbuster
- technology
- Uranium
- wastes
- weapons and war
- Women
- 2 WORLD
- ACTION
- AFRICA
- Atrocities
- AUSTRALIA
- Christina's notes
- Christina's themes
- culture and arts
- Events
- Fuk 2022
- Fuk 2023
- Fukushima 2017
- Fukushima 2018
- fukushima 2019
- Fukushima 2020
- Fukushima 2021
- general
- global warming
- Humour (God we need it)
- Nuclear
- RARE EARTHS
- Reference
- resources – print
- Resources -audiovicual
- Weekly Newsletter
- World
- World Nuclear
- YouTube
-
RSS
Entries RSS
Comments RSS
