Japan Earthquake | Page 2893

  • uups
    Saturday January 21 2012, 18:47:15 UTC 10 minutes ago offshore Chiapas, Mexico 6.2 66.1 quakes.globalincidentmap.com hisz.rsoe.hu
    by Edano 1/21/2012 7:06:34 PM

  • 'Actual Fukushima worker Happy20790 concerns reactor can not last until they manage to take out the fuel debris. He tweeted about it on 1/20/2012. "From the video of endoscope, SUS pipes were not so corroded but carbon pipes have gone so corroded. We are supposed to start taking out the fuel debris in 10 years from now but I bet it does not last so long.""The coating of the PCV wall is also being ripped off and the wall itself is very corroded though it’s better spec than system7. It must have been such a heat. Hatch of the operation control or airlock are even thinner so I’m worried about that too. I suppose rubber packing is also damaged..""I think some flange parts are opened in the upper part of reactor or grand parts of valve or bonnet are leaking water. There are a lot of the things I can’t figure out about reactor 2. For me, the explosion of the pipes of reactor 2 is a mystery too.." fukushima-diary.com
    by UKVal 1/21/2012 9:04:11 PM

  • 'Tepco failed in pipe pressure resistant test to have contaminated water leak.
    1/20/2012, Tepco tested the pressure resistant by using low level of contaminated water before transferring high level of contaminated water from the basement floor of turbin building of reactor 2. They found it leaking from a joint on the first floor of the turbin building for reactor4 for some reason.
    Tepco measured 100 microSv/h from the surface of leaked water.' fukushima-diary.com
    by UKVal 1/21/2012 9:06:41 PM

  • the TBS cam seems to be down, but TEPCO cam shows snow has settlled at Fuku!
    by UKVal 1/21/2012 9:15:37 PM

  • by UKVal 1/21/2012 9:32:47 PM

  • @UKVal , Happy's observations pertaining to the primary containment wall chime well with our assessment last night. Lilly took a good picture of melted paint peeling off the containment wall. The exposed steel seemed still shiny. Since we are not pipe material experts, I take Happy's word for the corrosion he sees. We also were wondering where all this water raining down originates. One important observation we had is that the water does not seem to collect much at the bottom, despite the constant rain. I would not be surprised finding a large hole in the bottom of the containment. I don't see how tepco believes that they possibly can sustain the situation as is for a decade.
    by Peter 1/21/2012 9:37:01 PM

  • @Peter I agree with all your observations. I suspect there must be a hole into which all that water is going. I'm also concerned about the steam that was visible in the video
    by UKVal 1/21/2012 9:38:54 PM

  • @UKVal , right. Somewhere down there water is boiling off. So much for cold shutdown! Tepco will regret the use of the word sooner than later.
    by Peter 1/21/2012 9:42:37 PM

  • @Peter -the only thing that's undoubtedly cold at Fuku at present is the weather!
    by UKVal 1/21/2012 9:50:33 PM

  • Japanese media announced at one point in the early months that there was a 3 meter hole in the suppression chamber but didn't cite how they came to that information. I do remember it was a mainstream media source
    by lillymunster 1/21/2012 10:00:04 PM

  • 'NISA Hid Fast Breeder "Monju" Trouble for Over a Month.. The Nuclear and Industrial Safety Agency under the Ministry of Economy, Trade and Industry instructed the Japan Atomic Energy Agency (JAEA) to investigate the cause of malfunction at the driving mechanisms for the control rods at the JAEA's fastbreeder "Monju" (in Tsuruga City, Fukui Prefecture), and to come up with measures to prevent it from happening again....According to NISA, the malfunction happened on December 12. Of the 19 driving mechanisms for the control rods, one mechanism didn't work at all when they conducted the test to verify the mechanisms were working. When tested again 2 days later, the mechanism worked. However, there is another mechanism that didn't work [and didn't work in the 2nd test]. JAEA says they will disassemble the mechanism in order to identify the cause'. ex-skf.blogspot.com
    by UKVal 1/21/2012 10:01:52 PM

  • 'Japanese Government to Municipalities Against Accepting Radioactive Waste: "Shut Up"
    That, in my crude paraphrasing, is what the Japanese national government is telling those municipalities in Japan that are siding with the residents who are against receiving radioactive waste - whether it is radioactive fly ashes from incineration plants or radioactive sewage sludge - to be burned, buried, or recycle in their towns, as long as the radioactivity is 8,000 becquerels/kg and less.

    Or more formally according to NHK,

    the Ministry of the Environment has requested the municipalities throughout Japan not to restrict the acceptance of waste without any scientific evidence and legal basis and not to instruct the private waste processing companies not to accept the waste.

    The national government has declared it is safe, and IAEA agrees with them, says NHK.

    Does IAEA really say it is safe to bury 8,000 becquerels/kg radioactive cesium in a regular dump? Somehow, I have my doubts....' ex-skf.blogspot.com
    by UKVal 1/21/2012 10:03:31 PM

  • 'On the basis of fluctuations in pressure measurements inside the containment vessel of the No. 2 reactor, it is assumed a 10-centimeter-diameter hole appeared in the side of the vessel, causing steam to leak 21 hours after the quake'. www.yomiuri.co.jp
    by UKVal 1/21/2012 10:09:25 PM

  • Possible damage of the suppression
    chamber at unit 2
    15.3 2011 06:20 - from this blog - can't find source...
    by UKVal 1/21/2012 10:16:02 PM

  • 'In unit 2, as mentioned above, water injection using the Emergency Core Cooling System (ECCS) failed at 4.36 pm on 11th. However, the steam-driven Reactor Core Isolation Cooling (RCIC) system functioned until the morning of 14th. Pressure was vented on 13th and again on 15th, and meanwhile the blowout panel near the top of the building was opened. The reactor water level dropped rapidly after RCIC cooling was lost on Monday 14th, so seawater injection to the containment was started on 15th via the fire-fighting line. However, RPV pressure was very high from mid 14th and drywell pressure reached 650 kPa (gauge), well above design base maximum of 380 kPag, so that at 6.14 am on Tuesday 15th, unit 2 apparently ruptured its pressure suppression chamber under the actual reactor, releasing significant radioactivity and dropping the drywell pressure inside. At 10.30 am Tepco was told to inject water into the pressure vessel and to vent the containment, and these activities continued. Containment damage is suspected.' www.world-nuclear.org (updated 13 May 2011)
    by UKVal 1/21/2012 10:24:16 PM

  • searching my records on #2 is displacement activity - I'm supposed to be marking assignments!
    by UKVal 1/21/2012 10:26:30 PM

  • @UKVal :-)
    by lillymunster 1/21/2012 10:28:03 PM

  • Unit 2 was consistently leaking really high radiation via water flowing out the intake canal for that unit.
    by lillymunster 1/21/2012 10:28:41 PM

  • Radioactive gravel also used in construction of private house in Fukushima mdn.mainichi.jp
    by lillymunster 1/21/2012 10:28:51 PM

  • Aftershocking: Frontline’s Fukushima Doc a Lazy Apologia for the Nuclear Industry my.firedoglake.com
    by lillymunster 1/21/2012 10:29:16 PM

  • 'Kan Administration Declared the Fukushima Accident Worst-Case Scenario Report "Didn't Exist" After Reading It
    The news of the worst-case scenario report submitted to the Kan administration by the Japan Atomic Energy Commission in March last year has already been reported, as I wrote on my January 2 post, but a little bit more information is coming from Kyodo News now.

    It turns out that the Kan administration not only sat on the report detailing the worst-case scenario of the Fukushima I Nuclear Power Plant accident, but it declared the report wouldn't exist from then on, and didn't even officially recognize its existence as part of the government documents until December last year when the news of the report finally leaked. On the New Year's Eve.' ex-skf.blogspot.com This gets more bizarre by the day!!
    by UKVal 1/21/2012 10:31:27 PM

  • the snow has knocked down all the plants that obscured lower parts of the pic on the TEPCO cam so you can see features it was not possible to see beofre. I would post a pic, but haven't found a way to do it on IE & can't view using Chrome. Sigh!
    by UKVal 1/21/2012 10:42:25 PM

  • @UKVal will see if I can grab one.
    by lillymunster 1/21/2012 10:43:09 PM

  • @lillymunster ty. Hopefully someone will show me how to do thissomeday... still learning.....
    by UKVal 1/21/2012 10:45:23 PM

  • @UKVal there is a clip tool I think in Windows 7 that I use to grab things. It is called snipping tool.
    by lillymunster 1/21/2012 10:47:25 PM

  • by lillymunster 1/21/2012 10:47:53 PM

  • @lillymunster ty for pic. I'm still using Vista
    by UKVal 1/21/2012 10:48:16 PM

  • close up of the plant area

    by lillymunster 1/21/2012 10:49:52 PM

  • snow snow every where.. wow.. greetings to all
    by dean 1/21/2012 10:51:28 PM

  • @dean Hi Dean. Some worrying tweets from Happy posted further down...
    by UKVal 1/21/2012 10:54:12 PM

  • Hi Dean, I have all the image captures from the scope of 2 done. Links are

    Newest batch: www.simplyinfo.org
    Middle batch: www.simplyinfo.org
    First batch: www.simplyinfo.org
    by lillymunster 1/21/2012 10:57:18 PM

  • @UKVal vista has the snipping tool, you need to look at AllPrograms->Accessories to find it
    by RonD 1/21/2012 11:02:06 PM

  • another 4.7 off Fuku -fortunately a fair way offshore, but with the quakes elsewhere I would expect further quakes closer in
    by UKVal 1/21/2012 11:02:15 PM

  • hi @lilly will see them
    by dean 1/21/2012 11:04:41 PM

  • @UKVal what are the tweets?
    by dean 1/21/2012 11:04:55 PM

  • @dean reproduced from below: '"From the video of endoscope, SUS pipes were not so corroded but carbon pipes have gone so corroded. We are supposed to start taking out the fuel debris in 10 years from now but I bet it does not last so long.""The coating of the PCV wall is also being ripped off and the wall itself is very corroded though it’s better spec than system7. It must have been such a heat. Hatch of the operation control or airlock are even thinner so I’m worried about that too. I suppose rubber packing is also damaged..""I think some flange parts are opened in the upper part of reactor or grand parts of valve or bonnet are leaking water. There are a lot of the things I can’t figure out about reactor 2. For me, the explosion of the pipes of reactor 2 is a mystery '
    by UKVal 1/21/2012 11:09:55 PM

  • @RonD ty for the tip - have found it & will experiment (just tried & screen froze...)
    by UKVal 1/21/2012 11:10:38 PM

  • @UKVal just use mouse to select anything or hit "esc" key
    by RonD 1/21/2012 11:14:07 PM

  • @lilly.. what was the rating of the camera they susposedly used? in Sv/hr?
    by dean 1/21/2012 11:14:38 PM

  • @RonD thanks - can now copy, but not paste here....
    by UKVal 1/21/2012 11:16:13 PM

  • @dean per Happy it is an Olympus camera capable of 1000 Svh.
    by lillymunster 1/21/2012 11:17:12 PM

  • @LILLY, lets put together some assumptions on the potential rad levels at the point at which the camera was put through that penetration. If we assume the camera washout occured at the 1000 svh then we could say that is the level at "x" feet from the likely spot where the fuel would have melted through. Then we may be able to estimate the level of the fuel in svh... I can't see where the rad levels would be that high at the wall of the RCV
    by dean 1/21/2012 11:25:36 PM

  • @dean do you meant that high at the wall of the reactor or at the wall of containment?
    by lillymunster 1/21/2012 11:26:47 PM

  • wall of the containment within what ever distance they were able to push the camera in
    by dean 1/21/2012 11:27:57 PM

  • 1 Sv/h = 100 rem/h
    by dean 1/21/2012 11:28:32 PM

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