Environment & Energy
Related: About this forumFirst Energy Davis Besse nuclear: cracks in the containment vessel to go with corrosion in the head
[font size = 3]...of the steel pressure vessel. [/font]
The corrosion around the nozzles of the head were the story of the last decade. There was a hole "as big as a football" in the reactor head. The only metal containing the radioactive water was the layer of chromium plating on the reactor head. Three engineers were found guilty of falsifying safety records in that instance.
Now, the plant owners are reporting a second occurrence cracks in the concrete of the containment vessel. The first crack was a fifteen foot long "hairline crack" near the bottom of the containment vessel.
I will keep you posted about this hazard on our lake. There are relicensing hearings coming up. Hopefully, my thread will outlast Davis Besse.
Davis Besse operators admit to more cracks than previously announced
Thanks to WTOL television
TOLEDO, OH (WTOL) - After admitting to discovering cracks in the concrete shell of the Davis-Besse nuclear reactor last month, the plant's operator says there more cracks near the top of the structure. The cracks were immediately announced to the necessary regulators, but they were not made public at the time.
On Wednesday, a spokesperson for FirstEnergy Corp. told The Associated Press that the cracks were found in November. Jennifer Young, the plant's spokesperson, says that the cracks were reported to the U.S. Nuclear regulatory Commission, and they never tried to hide the information.
...edit for copyright reasons...
http://www.wtol.com/story/16214458/davis-besse
Davis-Besse meeting postponed
Thanks to The Toledo Blade
...FirstEnergy Nuclear Operating Company, meanwhile, announced Tuesday that the Davis-Besse plant resumed producing electricity at 7:23 a.m. Tuesday following a nine-week shutdown for a reactor-head replacement. The plant was at 23 percent power on Tuesday morning and is expected to reach full output later this week.
A 30-foot, hairline crack was discovered in the shield building Oct. 10 after a contractor cut an access hole through the structure for the reactor-head replacement. Further investigation revealed additional cracking in the concrete, but last week the NRC authorized First Energy to restart the plant while further research about the cracking is conducted.
...edit for copyright reasons...
http://www.toledoblade.com/local/2011/12/06/Davis-Besse-meeting-postponed.html
kristopher
(29,798 posts)The football sized hole:
More at:
http://journals.democraticunderground.com/kristopher/1086
FBaggins
(26,719 posts)spam works on DU3 too.
madokie
(51,076 posts)Who woulda' thunk'it.
In this case only a person shilling for the nuclear industry would.
FBaggins
(26,719 posts)But we're both just checking out DU3.
Bob Wallace
(549 posts)Unsubstantiated claims do however....
madokie
(51,076 posts)except for the size, a crack is a crack. Which is broken concrete which has no strength anymore. The only thing holding it together anymore is the rebar used and when this plant was built my bet is there wasn't any epoxy coated rebar like we have and use in our bridge construction now because its more resistant to the salt they put on the roads during ice storms. I'm not even sure epoxy coated rebar would matter in a nuclear containment anyway, the temperatures they'd be subjected to and all.
wtmusic
(39,166 posts)Operating that one reactor prevents a coal-pollution death every three days.
diane in sf
(3,912 posts)wtmusic
(39,166 posts)There's no evidence to suggest radiation is responsible for anything close to the 25,400 U.S. deaths which occur as the result of burning coal.
jpak
(41,756 posts)illness and death
yup
wtmusic
(39,166 posts)Come back with links or please...don't bother.
Keerist, I can't wait for ignore.
jpak
(41,756 posts)Tens of thousands of US nuclear workers have been paid BILLIONS for radiation exposure and illness and death it caused.
Use the GOOGLE this time - key words - Radiation Exposure Compensation Act
wtmusic
(39,166 posts)jpak
(41,756 posts)http://en.wikipedia.org/wiki/Energy_Employees_Occupational_Illness_Compensation_Program
<snip>
Between 2000 and 2009, EEOICP has provided more than $5 billion [5] in benefits to sick workers and their families.
<snip>
madokie
(51,076 posts)come back here and feed us some more bull please
wtmusic
(39,166 posts)with any evidence you have that radioactive particles are more responsible for lung cancer than coal pollution.
z-z-z
madokie
(51,076 posts)I doubt that any evidence can be found as the nuclear industry denies any and all responsibility for anything except the 19% or so of power they do deliver. Everything else is denied by them. Always has been like that too I might add. I suggest you read something besides pro-nuke and you'll find the answer yourself.
wtmusic
(39,166 posts)That should be a tipoff.
wtmusic
(39,166 posts)#2 I need you to back up your seconding of dianeinsf's claim that "...(lung cancer) could just as easily be corrosion due to inhalation of radioactive particles".
But you can't, can you? I didn't think so.
wtmusic
(39,166 posts)Nice try.
jpak
(41,756 posts)uranium miners & transporters
uranium millers
uranium fuel fabrication workers
uranium enrichment workers
and
as...we start to blend-down weapons-grade uranium and plutonium to make fuel for commercial nuclear power plants - all those chickens come home to roost.
yup
wtmusic
(39,166 posts)z-z-z
nope.
jpak
(41,756 posts)same for the uranum mines, and mills and fuel fabrication plants
and...when you use blend down weapons grade nuclear material for fuel - all that baggage comes with it.
yup
wtmusic
(39,166 posts)None from nuclear. Is that the baggage you were referring to?
Yup?
yup
PamW
(1,825 posts)Between 2000 and 2009, EEOICP has provided more than $5 billion in benefits to sick workers and their families.
=============================
The Radiation Exposure Compensation Act of 1990 was principally for the "atomic veterans". Those are the members of the military that were in trenches at the Nevada Test Site when an atmospheric nuclear test was triggered, and then the servicemen got out of their trenches and marched toward "ground zero". It was an exercise to acqaint the soldiers to conditions on the nuclear battlefield.
The Energy Occupational Illness Compensation Program:
http://en.wikipedia.org/wiki/Energy_Employees_Occupational_Illness_Compensation_Program
The Energy Employees Occupational Illness Compensation Program (EEOICP) was passed in 2000 and is designed to compensate individuals who worked in nuclear weapons production and as a result of occupational exposures contracted certain illnesses.
These acts were compensation to people exposed to radiation by the Government because of the Government's nuclear weapons program. The connection to radiation exposure in commercial nuclear power is WHAT?
There were compensations to people because of the use of Agent Orange, a defoliant used in Vietnam. So because all these soldiers received compensation because they were sprayed with a defoliant; that must mean that being a landscaper is hazardous work. That's the conclusion one would draw if this faulty logic were carried to its conclusion.
PamW
FBaggins
(26,719 posts)They believe, as a fundamental religious doctrine, that nuclear power and nuclear weapons are two sides of the same coin. The civilian power reactor system exists to facilitate weapons production.
PamW
(1,825 posts)The civilian power reactor system exists to facilitate weapons production.
===================================================
I'm know that is a "fixed point" for the anti-nukes, but it is just not true.
I'm not responsible for their delusions. People are entitled to their opinions; but they are not entitled to their own FACTS.
The fact of the matter is that the US nuclear weapons program BY LAW is self-sufficient from the commercial nuclear power program. EVERY BIT of plutonium that is in US nuclear weapons came from either the reactors at the Government-owned Hanford complex, or the Government-owned Savannah River complex.
Every bit of highly enriched Uranium (HEU) came from Government-owned facilities at Oak Ridge, TN, or Paducah, KY, or Portsmouth, OH. These facilities are also used to provide slightly enriched fuel for commercial reactors. However, that is the commercial nuclear power program feeding off the nuclear weapons program, and not the other way around.
Congress actually requires in the Atomic Energy Act of 1954 that the nuclear weapons program has to be self-sufficient, and only rely on Government-owned facilities.
The other special material needed in addition to Plutonium and HEU is Tritium. For decades, ALL the Tritium in US nuclear weapons came from the production reactors at Savannah River. However, in 1988; the last of these reactors was shut down.
For many years, the US had no source of new Tritium and relied on what it had on hand. However, that was not a long-term solution since Tritium is radioactive with a 12 year half-life and decays to Helium-3 with time. Therefore, the USA had to either build a new production reactor, or find some other way to make Tritium.
It was President Clinton that made the decision to resolve that problem. President Clinton decided NOT to spend money to build a new reactor, because the Government already owned some reactors. The TVA - Tennessee Valley Authority is a Government entity, and in addition to dams, it also owns some power reactors like Browns Ferry. President Clinton decided that one of these reactors could be used to produce the needed Tritium. Only since 2003 has Watts Bar been making Tritium for nuclear weapons.
http://en.wikipedia.org/wiki/Watts_Bar_Nuclear_Generating_Station
Watts Bar fulfills the mandate of the Atomic Energy Act of 1954 because it is owned by the federal Government via the TVA. NO commercial power reactors owned by private corporations are allowed to make Tritium for nuclear weapons.
As I've stated in the past, if you have a beef with the US Air Force, or you don't like the US Air Force for whatever reason, then protesting against, or economically damaging the US commercial airlines is NOT a sensible way of opposing the Air Force. Even if you drove all the airlines into the ground, the US Air Force would still be whole. Just because the US Air Force gets some of its planes from Boeing, and the commercial airlines get some of their planes from Boeing, doesn't mean that the commercial airlines exist to facilitate the US Air Force.
PamW
jpak
(41,756 posts)that make fuel for commercial nuclear power plants.
and now that we are using HUE from the nuclear weapons program to make commercial nuclear fuel, all the death and illness from that enterprise belongs to the nuclear power industry.
yup
Bob Wallace
(549 posts)Nuclear is not as bad a coal!
Quick, look over there at that coal plant and take your eyes off our nuclear operations!!!
Hurry, hurry!!
wtmusic
(39,166 posts)These things happen every day of the week. Something breaks. Something gets shut down. Something gets fixed. Something gets started up again.
Was there any risk to the public - at all? Did anyone get hurt?
Wake me up when there's something newsworthy, like, say, a tsunami or something...
Bob Wallace
(549 posts)Boy, That Was a Close One!! Airlines....
----
TMI, Chernobyl, Fukushima. More than just a close miss....
wtmusic
(39,166 posts)Since Fukushima 18,000 Americans have died from coal pollution.
You have a lot of catching up to do.
kristopher
(29,798 posts)Your posts in this thread have absolutely NOTHING to do with the OP and contribute not one bit of understanding to the overall issue of nuclear safety.
It doesn't require banning anyone either.
joshcryer
(62,265 posts)How would an "effective host" "end this disruption"?
wtmusic
(39,166 posts)and the Davis-Besse incident never put anyone at risk.
It is irrelevant and should be portrayed as such.
kristopher
(29,798 posts)1) "Per unit of energy generated nuclear is the safest form of energy available."
No it isn't. The analysis you routinely post you are basing that claim on is false. It grossly understates the mortality associated with nuclear, fabricates numbers for solar and simply lies about wind. You know that it is false.
2)"...Davis-Besse incident never put anyone at risk."
"Risk is the potential that a chosen action or activity (including the choice of inaction) will lead to a loss (an undesirable outcome). The notion implies that a choice having an influence on the outcome exists (or existed). Potential losses themselves may also be called "risks". Almost any human endeavor carries some risk, but some are much more risky than others."
Yes it did. This:
Together with condition we now know the containment building to be in (that didn't happen overnight) means the risk was all too real.
3) You didn't try to portray the risk or discuss the risk of the nuclear plant in any manner; you tried to disrupt the thread.
wtmusic
(39,166 posts)1) Saying something is false doesn' t make it so (and don't bother posting biased numbers of Ukrainian agencies on the take for federal and international aid from Chernobyl as evidence). I'll amend my statement slightly - per unit of energy generated nuclear is the safest form of practical energy available.
2) I said, if you had bothered to read my post, that it never put anyone at risk. It might have put an inanimate piece of metal at risk, but that's not very newsworthy, is it?
3) Nonetheless, the inconsequential incident at Davis-Besse is constantly portrayed as if it the reactor was seconds away from a meltdown, and that deserves a challenge. See the date on the photo? It's from 9+ years ago. Is that supposed to represent something of relevance in 2011?
Bob Wallace
(549 posts)of a hazardous device you increase risk.
Everyone downwind of Davis-Besse was put at increased risk.
FBaggins
(26,719 posts)As "removing a critical safety feature"
You decrease credibility.
madokie
(51,076 posts)Thankfully the weight will hold it together but it being a structurally strong structure any more, it isn't, at this point.
Oh and yes it is removing or compromising, if you will, a critical safety feature and by pointing that out is not decreasing anyones credibility as your saying it does does to yours.
The nuclear power industry lied to us from the beginning and no amount of your trying to change that is going to make a hill of beans of difference. the NRC lied to us just as well also. The government lied to us also by trying to paint a happy face on this whole nuclear genie thing. The government simply wanted acceptance of these new big bangs they've developed so they mislead us into thinking that these things are no worse than the stove in your home. What is troubling is supposedly otherwise smart people buy into this big lie just as you have.
Why don't you get your tail over to Japan and talk to the people there or Chernobyl even and see what they have to say about nuclear safety. You can bet your sweat ass what you hear won't be the shit you spout here daily.
Thats my hunch anyway
PamW
(1,825 posts)hairline crack in millions of pounds of concrete...
=====================================
It also shows a lack of engineering knowledge.
Concrete is very good for compression loads; but actually poor for tensile loads.
Engineers know this; which is why they use a matrix of "rebar" in the concrete.
It's actually the rebar that handles the tensile loads. The rebar also pre-stresses the concrete so that it is always in compression. When a tensile load is applied, it really just lessens the compression forces, but the concrete stays in compression.
That's why the cracks are not important. The concrete isn't being relied on to hold tensile loads in which the crack would be important. The rebar is doing that job. The concrete is being relied on for compressive loads. However, if the concrete is being compressed, then that crack is being compressed out of existence. When the left side of the crack touches the right side of the crack, then compression forces can be transferred across the crack. It doesn't matter that the two sides don't have adhesion. That would only be required for tensile loads; but we don't rely on concrete for the tensile loads anyway.
It's making a mountain out of a molehill when someone doesn't understand what material is supporting which loads.
PamW
Kolesar
(31,182 posts)Post a bloody and scary picture. Am I supposed to be impressed?
Kolesar
(31,182 posts)(press release, printed in full)
First Energy Nuclear Operating Company Names Kendall Byrd Director of Engineering at Davis-Besse Nuclear Power Station
AKRON, Ohio, Dec. 14, 2011 /PRNewswire
FirstEnergy Nuclear Operating Company (FENOC), a subsidiary of FirstEnergy Corp. (NYSE: FE), has named Kendall (Ken) W. Byrd director of engineering at the Davis-Besse Nuclear Power Station in Oak Harbor, Ohio. In this position, he is responsible for providing direction and oversight of the engineering activities and projects performed at Davis-Besse that support safe and reliable operations.
A 23-year employee of FirstEnergy, Byrd was most recently the director of performance improvement at Davis-Besse. He has also served as design engineering manager, superintendent of electrical maintenance and supervisor of engineering analysis at Davis-Besse.
"Ken's solid engineering background and leadership skills will support the sound work performed by Davis-Besse's engineering organization and ensure the continued safe, reliable operation of the facility," said FENOC senior vice president of Fleet Engineering Dan Pace.
Byrd holds a bachelor's degree in chemical engineering from Purdue University and a master's degree in nuclear engineering form the University of Illinois at Urbana-Champaign. He also served in the nuclear navy and earned a senior reactor operator license at Davis-Besse.
FirstEnergy is a diversified energy company headquartered in Akron, Ohio. Its FENOC subsidiary operates the Beaver Valley Power Station in Shippingport, Pa., the Davis-Besse Nuclear Power Station and the Perry Nuclear Power Plant in Perry, Ohio. More information about FENOC is available at www.fenoc.com. Follow the Davis-Besse Nuclear Power Station on Twitter: @DavisBesse.
SOURCE FirstEnergy Corp.
News Provided By comtexnews.net
http://www.energybiz.com/article/11/12/firstenergy-nuclear-operating-company-names-kendall-byrd-director-engineering-davis-besse-nuclear-power-station&utm_medium=eNL&utm_campaign=EB_DAILY2&utm_term=Original-Member
Kolesar
(31,182 posts)OAK HARBOR, Ohio Ninety minutes before a meeting was to start to discuss cracks found at the Davis-Besse nuclear power plant, anti-nuclear protesters Thursday staged a brief skit that reiterated their misgivings about the plants resumed operation.
Kevin Kamps, a leader of Takoma Park, Md.-based Beyond Nuclear, said the skit featuring the Homer Simpson and Mr. Burns cartoon characters, King Kong, and the Besse plant as a cracking egg was absurd, zany street theater to blow off a little steam before we head off to a very serious meeting.
They also mocked Thursday nights 6:30 p.m. meeting at which some 250 people have arrived for as a dog-and-pony show.
Characters in the skit, which was conducted with the power plant as a backdrop, pretended to repair the buildings cracks with nuclear-grade duct tape and nuclear-grade Gorilla Glue while three-eyed fish danced nearby.
The tritium leaks into the lake are beneficial to certain species, Mr. Kamps, as Mr. Burns, intoned.
They dont even know the root cause. How can they say that its safe at this point? said Mr. Kamps, who played the malevolent owner of a nuclear power plant on The Simpsons cartoons series.
...
A contractor cutting an access opening to install a replacement reactor head found a 30-foot hairline crack Oct. 10. It was in the 2 1/2-foot-thick reinforced-concrete building that surrounds a 1½-inch-thick steel containment vessel that encloses the reactor.
After a nine-week shutdown, FirstEnergy Corp. was allowed to restart the plant, citing its study that determined the cracks didnt pose a threat. NRC officials said they also did checks and will present their findings. The plant near Oak Harbor is along Lake Erie, 30 miles east of Toledo.
http://www.toledoblade.com/local/2012/01/05/Protesters-stage-skit-before-Davis-Besse-hearing.html
kristopher
(29,798 posts)"Barry Allen, vice president at Davis-Besse, said while no one knows exactly what caused the cracks, engineers determined the shield building can safely perform as intended."
http://www.sanduskyregister.com/oak-harbor/news/2012/jan/06/few-answers-davis-besse-cracks
It makes you think that Mr. Allen's reality is skewed 20 degrees off of the universe the rest of us live in.
FirstEnergy and regulatory commission inspectors said they investigated the extent of the cracks and also drilled through the shield buildings walls to obtain 70 core samples. Tests are still being done on the samples to determine when and how the cracks formed.
But those questions that should have been answered before the nuclear plant was turned back on, critics said.
FBaggins
(26,719 posts)... To know that they won't impact your ability to compete in a 10k run.
PamW
(1,825 posts)FBaggins,
As you've told me; logic and rational thought are wasted in making these arguments.
Some are going to mindlessly believe what they want to believe regardless of all facts and logic saying otherwise.
I keep falling into the same trap.
PamW
Kolesar
(31,182 posts)Today, Beyond Nuclear, Citizens Environment Coalition of Southwestern Ontario, Don't Waste Michigan, and the Green Party of Ohio filed a 60 page contention against the proposed 2017 to 2037 license extension at Davis-Besse atomic reactor on Lake Erie near Toledo, due to recently revealed severe cracking of its concrete shield building/secondardy radiological containment structure. A copy of the contention is posted here.
http://www.beyondnuclear.org/storage/FINAL%20Contention%205%20Cracking%20January%2010%202012.pdf
The U.S. Nuclear Regulatory Commission allowed FirstEnergy Nuclear Operating Company to restart the reactor on December 6, 2011, even though the root cause and full extent of the cracking has not been determined, and corrective actions have not been identified.
Also today, the NRC's Atomic Safety and Licensing Board rejected a motion by FENOC (First Energy) calling for dismissal of the environmental coalition's primary contention against the Davis-Besse license extension -- that the nearly 910 Megawatts of electricity could be readily replaced by a combination of wind power, solar power, and energy storage. The ruling is posted here.
http://www.beyondnuclear.org/storage/ASLB%20Memorandum%20and%20Order%20Denying%20Motion%20to%20Dismiss%20Contention%201%20Jan%2010%202012.pdf
The environmental coalition's attorney, Terry Lodge of Toledo, and its expert witness, Al Compaan, Emeritus Professor of Physics at the University of Toledo, prepared a response to FENOC, defending the renewable energy alternatives contention; it is posted here.
http://www.beyondnuclear.org/storage/Memo%20oppstn%20MSD%20complete%20FINAL2%206pm%20Jan%209%202012.pdf
The environmental coalition issued a media release about today's filing of its shield building cracking safety challenges. The media release is posted here.
http://www.beyondnuclear.org/storage/crack%20contention%201%2010%202012%20press%20release.pdf
An NRC inspector examines one of the recently revealed cracks in the Davis-Besse concrete shield building
http://www.beyondnuclear.org/home/2012/1/10/environmental-coalition-challenges-davis-besse-license-exten.html
Kolesar
(31,182 posts)Davis-Besse nuclear power plant now include mysterious hairline cracks in the outer concrete "shield building" around the reactor and its containment vessel.
These problems demand more than the usual ho-hum treatment from the U.S. Nuclear Regulatory Commission.
So the real mystery is why the NRC has let plant operator FirstEnergy Nuclear Operating Co., a subsidiary of Akron-based FirstEnergy Corp., power up the reactor before the utility completes its investigation into what caused the cracks.
...
Given the rocky operating history at Davis-Besse, on the Lake Erie shore near Toledo, and the large population living nearby, the NRC should have insisted on a root-cause report before permitting the plant to go back online. In 2002, the company's failure to check the lid of its nuclear reactor in a thorough and timely way allowed a gaping rust hole to grow unnoticed.
...
FirstEnergy wants to extend Davis-Besse's operating license to 2037 and has already applied for that 20-year extension. Davis-Besse's current license expires in 2017.
The reactor should not get a new lease on life until the NRC thoroughly analyzes its recent problems. Are the cracks an indicator of structural issues at Davis-Besse, making this plant too risky to operate for another two decades?
http://www.cleveland.com/opinion/index.ssf/2012/01/before_giving_davis-besse_anot.html
I am encouraged the the Plain Dealer would editorialize against First Energy. It had been that the PD was a mouthpiece for FE and the banks that did their financing dirty work for them.
FBaggins
(26,719 posts)Not knowing precisely what caused "x" doesn't impact decisions like restart/recert if "x" is not a safety issue.
You could have a crack in a concrete span of a bridge and have no idea what caused it... but they aren't going to shut down the bridge (or worse, plan to replace it early) because of a crack that has no structural relevance to the safety of the bridge.