Mitsubishi Tech Support

  • Subscribe to our RSS feed.
  • Twitter
  • StumbleUpon
  • Reddit
  • Facebook
  • Digg

Friday, 14 October 2011

Davis-Besse: Crack in containment building

Posted on 11:40 by Unknown
A 30 foot long, hairline crack has been discovered by workers at Davis-Besse while preparations are underway to replace the reactor vessel head.

According to reports such as this one, the outermost shell is physically separate from the actual, steel vapor containment and thus this condition is not directly comparable to the long-standing shutdown at Crystal River, where failure to hire an experienced contractor and use of a newly developed process for cutting the containment resulted in delamination of the concrete containment building. There is no gap at Crystal River. As such this crack is not likely to be nearly as serious a failure to repair as that at Crystal River is proving.

According to the local Fremont News Messenger (Fremont, Ohio, near Oak Harbor where Davis-Besse is located) an NRC spokesperson stated that the plant cannot restart unless this situation is resolved. Which is exactly what one would expect.

FirstEnergy stock fell after the announcement; however, various recommendations I've seen in the last hour range from hold (Jefferies via StreetInsider.com) to buy (Deutsche Bank.) Deutsche Bank has a target price of $49 for FirstEnergy which was $43.76 at close (NYSE) on Thursday.

This writer has yet to see any determination of whether this crack existed prior to cutting the opening for passage of the reactor vessel heads (new one in, old one out) or whether it has been caused by the operation. What is clear however is that the plant is totally safe and that a crack in the containment outer shell at this moment is irrelevant considering the large opening deliberately cut into the building to allow the work to proceed. It is repair of the crack and any certification or testing after reactor vessel head replacement is completed which stands now in question.

3:00 PM Eastern Friday October 14, 2011
ATOMIC POWER REVIEW
Email ThisBlogThis!Share to XShare to FacebookShare to Pinterest
Posted in "containment", "davis-besse" | No comments
Newer Post Older Post Home

0 comments:

Post a Comment

Subscribe to: Post Comments (Atom)

Popular Posts

  • Nitrogen inerting drywells..
    Apparently the nitrogen injection to the drywell on No. 1 plant continues... and TEPCO has made a fairly revealing press release which inclu...
  • NuSource LLC - Press Release
    Press release on formation of NuSource LLC follows. MPR & Gavial Form Joint Venture, NuSource LLC, to Address Nuclear Industry Obsolesce...
  • Nuclear Icebreakers 101
    An addendum for National Nuclear Science Week - Day 3 In the previous post I gave the briefest overview of the history of the Russian fleet ...
  • Atomic History: Dresden-1
    In one of our previous discussions concerning the nature of reactor plant containment, we made considerable effort to detail the very early ...
  • San Onofre seismic study - Press release 4/27
    Press release below from SoCal Ed. Some very interesting news about a cooperative project to further investigate the seismic environment at...
  • Davis-Besse vessel head replacement
    As reported on the NRC blog, Davis-Besse has been shut down for replacement of its pressure vessel head. This plant is a Babcock & Wilco...
  • Carnival 81 on line now
    Dan Yurman has posted the 81st Carnival of Nuclear Bloggers over at his fine blog, "Idaho Samizdat." APR's post on the Decembe...
  • An interesting week, to say the least.
    This has indeed been an interesting week for those who follow the news in nuclear energy. Here is a brief recap from my perspective. NRC CH...
  • Brief Fukushima Daiichi update- Sunday 5/22
    As reported on this blog on April 23, TEPCO has (again) noted the discovery of radioactive debris on the Fukushima Daiichi site which is emi...
  • APR note: APR now on Twitter!
    After much consideration, I have decided to open a Twitter account for Atomic Power Review in order to post relevant news and site updates. ...

Categories

  • " fukushima daiichi"
  • "accident"
  • "alloy"
  • "ameren"
  • "american nuclear society"
  • "annealing"
  • "anniversary"
  • "ans"
  • "anti-nuclear"
  • "AP1000"
  • "arco"
  • "areva"
  • "asn"
  • "associated press" "NRC" "NEI"
  • "atomic journal"
  • "babcock"
  • "blackout"
  • "bloggers"
  • "boron"
  • "brazil"
  • "breeder reactor"
  • "breeder"
  • "browns ferry"
  • "browns ferry" "nine mile point"
  • "BWR"
  • "calhoun"
  • "callaway"
  • "carnival"
  • "chernobyl"
  • "china"
  • "chubu electric" "hamaoka"
  • "chubu" "hamaoka"
  • "chubu" "hamaoka" "tepco" "fukushima daiichi"
  • "chubu" "kyushu" "nisa"
  • "COL"
  • "commissioners"
  • "containment"
  • "contaminated"
  • "cooling"
  • "cooper" "ft calhoun" "flood" "missouri river"
  • "core damage"
  • "criticality"
  • "davis-besse"
  • "delta IV"
  • "dresden" "boiling water reactor" "containment"
  • "dry dock"
  • "dry well"
  • "earth day"
  • "earthquake"
  • "EBR"
  • "ebwr"
  • "education"
  • "elk river"
  • "embrittlement"
  • "enclosure"
  • "energy policy"
  • "equipment"
  • "fabrication"
  • "fermi"
  • "fire"
  • "flood"
  • "frontline"
  • "ft calhoun"
  • "ft calhoun" "oppd" "flood"
  • "ft st vrain"
  • "fukushima daiichi"
  • "fukushima daiichi" "BWR"
  • "fukushima daiichi" "nisa" "tepco"
  • "fukushima daiichi" "tepco"
  • "fukushima daiichi" "tepco" "dry well" "containment" "pressure vessel"
  • "fukushima daiichi" "tepco" "iaea"
  • "fukushima daiichi" "tepco" "kurion" "areva"
  • "fukushima daiichi" "tepco" "nisa"
  • "fukushima daiichi" "tepco" "nisa" "genkai" "pressure vessel"
  • "fukushima daiichi" "tepco" "nisa" "jaif"
  • "fukushima daiichi" "tepco" "nisa" "japan"
  • "fukushima daiichi" "tepco" "nisa" "jsc" "road map" "recovery"
  • "fukushima daiichi" "tepco" "nisa" "spent fuel" "pool"
  • "fukushima daiichi" "tepco" "nitrogen"
  • "fukushima daiichi" "tepco" "robot" "video"
  • "fukushima daiichi" "tepco" "tokai" "japco" "iaea"
  • "fukushima daiichi" "tepco" "tomari" "hokkaido"
  • "fukushima daiichi" "tepco" "tsunami"
  • "fukushima daiichi" "tepco" "video"
  • "fukushima daiichi" "tepco" "video" "youtube"
  • "fukushima daiichi" "TMI" "public opinion" "survey"
  • "fukushima daiichi" "video"
  • "fukushima daiichi" 7 8 plants economic plan TEPCO
  • "fukushima daiichi" cooling water release sea ocean nuclear reactor accident NISA TEPCO pit trench tunnel
  • "fukushima daiichi" nuclear reactor accident contaminated water barge Suzuran Rosatom TEPCO
  • "fukushima daiichi" nuclear reactor accident contaminated water sea radwaste condensers nitrogen hydrogen inert
  • "fukushima daiichi" nuclear reactor accident earthquake onagawa TEPCO tohoku BWR nitrogen
  • "fukushima daiichi" nuclear reactor accident IAEA TEPCO update briefing temperatures pressures
  • "fukushima daiichi" nuclear reactor accident japan update color dye containment fabric update
  • "fukushima daiichi" nuclear reactor accident leakage sea seawater contamination tunnel trench cable pit
  • "fukushima daiichi" nuclear reactor accident liquid glass sodium silicate TEPCO
  • "fukushima daiichi" nuclear reactor accident nitrogen hydrogen inert dry well drywell
  • "fukushima daiichi" nuclear reactor accident nitrogen inert radiolytic radiolysis hydrogen
  • "fukushima daiichi" nuclear reactor accident polymer leak concrete contaminated contamination reactor pressure vessel containment cooling
  • "fukushima daiichi" nuclear reactor accident seawater contamination iodine tunnel trench TEPCO NISA JAIF
  • "fukushima daiichi" nuclear reactor accident site update status project future
  • "fukushima daiichi" nuclear reactor accident sodium silicate liquid glass diagram drawing perspective pipe tunnel trench contamination sea seawater
  • "fukushima daiichi" nuclear reactor accident TEPCO NISA JAIF update
  • "fukushima daiichi" nuclear reactor accident update TEPCO JAIF NISA
  • "fukushima daiichi" nuclear reactor accident water leakage contamination workers found dead
  • "fukushima"
  • "gas cooled"
  • "genkai"
  • "genkai" "embrittlement" "brittle" "pressure vessel"
  • "genkai" "kyushu"
  • "hack job"
  • "hallam"
  • "head"
  • "hearing"
  • "hearings"
  • "higashidori"
  • "hitachi"
  • "HNPF"
  • "hurricane"
  • "hydrogen"
  • "IAEA"
  • "icebreaker"
  • "IFR"
  • "INES"
  • "injection"
  • "irene"
  • "irrelevant"
  • "jaczko"
  • "jaczko" "NRC"
  • "JAIF"
  • "japan"
  • "kurion"
  • "kyushu"
  • "laguna verde"
  • "lenin"
  • "licensing"
  • "loop"
  • "lunch"
  • "marcoule"
  • "mark I"
  • "melt"
  • "meltdown"
  • "mexico"
  • "mitsubishi"
  • "MK I" "containment" "suppression" "youtube" "video"
  • "mPower"
  • "mPower" "Bechtel" "TVA" "babcock"
  • "national nuclear science week"
  • "nei"
  • "new nuclear"
  • "NISA"
  • "nitrogen"
  • "no 5"
  • "no 6"
  • "north anna"
  • "NRC"
  • "NRTS"
  • "nuclear aftershocks"
  • "nuclear energy institute"
  • "nuclear history"
  • "nuclear icebreaker"
  • "office for nuclear regulation"
  • "op-ed"
  • "op-ed" "carnival"
  • "op-ed" "fukushima daiichi"
  • "opinion"
  • "oversight"
  • "palisades"
  • "pbs"
  • "peer review"
  • "poll"
  • "PRA"
  • "press"
  • "pressure vessel"
  • "pressurized thermal shock"
  • "primary to secondary leak"
  • "PTS"
  • "public attitudes"
  • "PWR"
  • "RBMK-1000"
  • "RBMK-1500"
  • "RBMK-2400"
  • "RBMK"
  • "reactor safety"
  • "reading list"
  • "recriticality"
  • "Reid"
  • "reporting"
  • "restart"
  • "risk"
  • "robot"
  • "rod adams" "glenn williams" "interview" "atomic show" "the street"
  • "safety"
  • "san onofre"
  • "sarry"
  • "SBO"
  • "sheldon station"
  • "shippingport"
  • "SMR"
  • "solar"
  • "songs"
  • "south africa"
  • "south texas project"
  • "spent fuel"
  • "SSBN"
  • "steam generator"
  • "steam generators"
  • "steel"
  • "stress tests"
  • "submarine"
  • "support"
  • "Svinicki"
  • "sylcor"
  • "sylvania-corning"
  • "TEPCO"
  • "tepco" "tohoku" "kyushu" "japan"
  • "TMI"
  • "tokyo electric"
  • "Toshiba"
  • "twitter"
  • "UK"
  • "update"
  • "vermont yankee"
  • "vessel"
  • "video"
  • "virgil c summer"
  • "virginia"
  • "vogtle"
  • "wash-1250"
  • "WASH"
  • "westinghouse"
  • "westinghouse" "AP1000" "NRC"
  • "xenon"
  • "youtube"
  • ANO
  • ANS
  • arkansas nuclear one
  • Babcock
  • brittle fracture
  • brookhaven
  • carnival
  • crystal river
  • decommissioning
  • earthquake
  • enriched uranium
  • Entergy
  • fintan dunne
  • FirstEnergy
  • fresno
  • fuel elements
  • fukushima daiichi
  • higashidori
  • hurricane
  • hurricanes
  • industrial accident
  • INES
  • kashiwazaki kariwa TEPCO earthquake
  • kenya
  • license amendment
  • MHI
  • mitsubishi
  • mPower
  • NEI
  • northern fleet
  • nrc
  • nuclear electricity project
  • nuclear history
  • nuclear submarines
  • onagawa tohoku leak earthquake
  • OSHA
  • oyster creek
  • palisades
  • press release
  • pressurized thermal shock
  • PTS
  • retire
  • russian navy
  • san onofre
  • sandy
  • sce
  • sherrell r greene
  • shutdown
  • SMR
  • socal ed
  • songs
  • southern california edison
  • spent fuel
  • spent fuel pool
  • spent fuel pools
  • status
  • steam generator
  • steam generators
  • surry
  • sustainable energy today
  • sylcor
  • sylvania-corning
  • TEPCO
  • tohoku electric power higashidori onagawa LOOP fuel pool cooling
  • tokyo electric power company
  • unusual event

Blog Archive

  • ►  2013 (71)
    • ►  October (5)
    • ►  September (5)
    • ►  August (9)
    • ►  July (5)
    • ►  June (6)
    • ►  May (2)
    • ►  April (8)
    • ►  March (13)
    • ►  February (13)
    • ►  January (5)
  • ►  2012 (159)
    • ►  December (6)
    • ►  November (7)
    • ►  October (13)
    • ►  September (7)
    • ►  August (19)
    • ►  July (15)
    • ►  June (16)
    • ►  May (17)
    • ►  April (13)
    • ►  March (14)
    • ►  February (14)
    • ►  January (18)
  • ▼  2011 (270)
    • ►  December (22)
    • ►  November (21)
    • ▼  October (20)
      • Carnival No. 76 up now...
      • Fukushima Daiichi update: October 28, 2011
      • Report from Fukushima Daiichi - #2
      • New video at APR YouTube
      • Carnival of Nuclear Bloggers No. 75
      • Further test on pressure vessels at Fukushima Daii...
      • Fukushima Daiichi - Emergency Seawater Injection P...
      • Carnival of Nuclear Bloggers up at ANS
      • Davis-Besse containment update
      • Fukushima Daiichi No. 1 enclosed
      • Davis-Besse: Crack in containment building
      • US Energy Policy and the NRC
      • Well done article on Spent Fuel Storage
      • Some new websites.
      • New video: Fukushima Daiichi cooling water injection
      • 73rd Carnival @ Next Big Future
      • New "Favorite" videos at APR Youtube.
      • Davis-Besse vessel head replacement
      • TEPCO: No hydrogen explosion at No. 2 plant
      • ANS Nuclear Cafe / Rod Adams
    • ►  September (21)
    • ►  August (17)
    • ►  July (23)
    • ►  June (24)
    • ►  May (44)
    • ►  April (78)
Powered by Blogger.

About Me

Unknown
View my complete profile