Late last week, anti-nuclear gadfly Arne Gundersen took to the Web to attack the safety of Westinghouse's AP-1000 nuclear reactor. It's all part of a larger effort by anti-nuclear activists to delay the certification of the reactor design by the Nuclear Regulatory Commission.
NEI's Tom Kauffman shot me a note that has asked me to share with our blog audience:
Arnie Gundersen’s claim there was an inadvertent criticality in the one Fukushima reactor is totally unfounded. A criticality is a sustained chain reaction within the nuclear fuel. There is no evidence a criticality occurred in any of the damaged reactors since the accident. Spontaneous fission of uranium atoms naturally occurs, but conditions to support criticality do not exist. The control rods are in fact in the damaged fuel. And boron, a highly effective fission control element, is mixed in the cooling water in all three reactors and all the used fuel pools thereby virtually eliminating the possibility of criticality. Gundersen knows this and is deliberately misleading people.This isn't the first time Gundersen and his allies have attacked the AP-1000. Last April, a group of 12 regional anti-nuclear energy organizations called on the NRC to investigate their claims. Click here for NEI's response to that request.
Gundersen’s claim that loss of the cooling water at the top of the AP1000 containment structure would be the loss of the plant’s ultimate heat sink also is false. Just like the nuclear plants at Fukushima, the ultimate heat sink of the AP1000 reactor is the cooling water source for the plant. If that is lost, multiple emergency cooling water supplies would be used to cool the reactor. If they too are lost, the water at the top of the containment could provide cooling for three days even in the event of a total loss of all electrical power. He also failed to mention that no U.S. nuclear facility faces the sudden flooding that stopped the ultimate heat sink in Japan.
His claim the fuel pool at the #4 reactor at Fukushima “blew up” is absolutely false and is fear-mongering at its worst. Video of the #4 pool and the used fuel in it along with samples of the water in the pool, are irrefutable proof there was no explosion in the fuel pool and fuel is intact. In fact, there were no explosions in any of the fuel pools. NRC Chairman Jaczko publicly confirmed this weeks ago. Likewise, Gundersen’s recent claim that molten fuel is moving into the ground beneath one plant and causing groundwater to change into steam is totally unsupported and irresponsible.
Mr. Gundersen also failed to mention that the AP1000 reactor, designed to be at least 100 times safer than existing plants due to exceptionally large safety margins, is based on 50 years of operational lessons-learned and more than 20 years of research and development. Probably the most highly engineered and analyzed nuclear plant design in the history of the U.S. (if not the world), the Westinghouse advanced passive reactor design underwent the most thorough pre-construction licensing review ever conducted by the U.S. Nuclear Regulatory Commission. Because of the AP1000 design’s huge safety margins, any changes needed in response to the lessons learned from the accident in Japan are expected to be manageable during plant construction.
Mr. Gundersen does not speak for the people of Georgia or South Carolina, nor their governors or public service commissions who support new nuclear facilities. He should respect their right to decide for themselves how to manage their energy supplies.
An artist's conception of the AP-1000 reactor, courtesy of Westinghouse.
Comments
Thank you for this note. Opponents are looking for baby-bear's porridge. Existing nuclear plants are too old, and must be shut down! New nuclear plants designs are untested! Maybe a ten-year-old plant would be just-right? Actually, I don't think so.
Fukushima will be contaminated because the reactors are still spewing out radioativity. People have to live in areas that would have been evacuated if they had been in Chernobyl. Nuclear reactors are not comletely safe and there is no solution for the waste. Stop forcing nuclear energy though peoples throats, its stupid. The sun emits enough energy in 10 minutes than all of humanity can consume in a year.
Your comment about the sun "emitting" enough energy to power humanity is utter nonsense. The fact that it produces large amounts of energy doesn't mean it can be captured and utilized in any economically viable manner compared with more economical and reliable sources we already have. For example, what happens when the sun is "emitting" its energy and you are on the other side of the Earth? There is this thing called "night", you know.
Okkie - If it's so great you go and live on the sun. I would tell you to take your children with you, but you sound like a child yourself.
"It is better to aim at the archer than to try to shoot down the arrows."
Gundersen has a demonstrated history of inflating his resume.
http://atomicinsights.com/2011/02/arnie-gundersen-has-inflated-his-resume-yet-frequently-claims-that-entergy-cannot-be-trusted.html
He has also demonstrated ignorance of the age old adage that it is better to be thought a fool than to open your mouth and remove all doubt.
http://atomicinsights.com/2011/03/this-is-an-example-of-why-people-who-lie-about-their-resumes-must-not-be-believed.html
He has a fan club, and he makes a pretty good living as the guy with a respectable NE degree that can be counted on to support any and all antinuclear arguments. He is, however, an archer whose credibility should be actively attacked to keep him on the defensive and to ensure that he can do as little damage as possible.
I realize that most nuclear professionals are polite people who dislike going negative on their opponents, but that restriction does not apply to me. I can be a nasty fighter if challenged; Gundersen continuously implies that some of the best people I know are somehow putting the public at risk by supporting nuclear technology development.
I guess Mr. Gundersen wasn't familiar with Russia Today's reputation as a channel with a "penchant for wild conspiracy theories" and which has a habit of featuring "fringe-dwelling 'experts,' like the Russian historian who predicted the imminent dissolution of the United States."
Or maybe he already knew. It sounds like just the right the place for Mr. Gundersen, the fringe-dwelling "expert" on nuclear power.
His action plan for Fukushima on Mar 15, 2011, was to be ready to drop sand, boric acid and concrete on reactors 1-3 from shielded helicopters, without explaining how that material would get through the buildings and pressure vessels to the cores. http://bigthink.com/ideas/31617
He also thought that 3 major nuclear catastrophes were imminent a few months ago, between the forest fire outside of Los Alamos and the Upper Midwest flooding:
http://bigthink.com/ideas/39108
He seems to have a penchant for sensationalism.
Frankly, I've wondered for several years whether he's on drugs.
At the International Thorium Energy Confernce held has Kaku's place of employment, I asked a few of the engineering students and professors about him. Either a 'no comment' or the kids just rolled their eyes.
David
Lack of regulation, because of industry collusion, is the biggest problem with the Nuclear Industry. You can defend your "Technical Science" till your blue in the face, but if the regulators pensions relies on industry profits you will never see honest regulation.