Japan Earthquake | Page 2632

  • by Edano via English.kyodonews.jp 11/10/2011 6:33:52 PM

  • @elainekirk yes, but nowhere else.strange.
    by Edano 11/10/2011 6:34:27 PM

  • 37.1N 140.9E M3.4
    by Edano 11/10/2011 6:35:25 PM

  • more south of daini, in iwaki.
    by Edano 11/10/2011 6:39:27 PM

  • The Non-Battle of Fukushima. November 07.2011. Large problems are looming larger in Fukushima as reports of short-lived radioactive fission products detected by TEPCO in reactor number 2. www.economic-undertow.com
    by MaryW 11/10/2011 6:40:46 PM

  • Radium substance found at residence in Tokyo

    TOKYO, Nov. 11, Kyodo english.kyodonews.jp
    by Edano 11/10/2011 6:41:01 PM

  • Soccer: Grass greener than anticipated for Japan-Tajikistan qualifier

    By Shintaro Kano
    DUSHANBE, Nov. 10, Kyodo english.kyodonews.jp
    by Edano 11/10/2011 6:44:53 PM

  • hmmmm ..... ?
    by Edano 11/10/2011 6:45:04 PM

  • Plans for Traveling Wave Reactors. What do you all think? www.terrapower.com
    by Cryptococcus 11/10/2011 6:47:26 PM

  • The article I posted below, The Non-Battle of Fukushima, has some great diagrams in it. Also included is a video entitled The Battle of Chernobyl (2008), which has some first time published pictures and information. (Warning: once you begin watching it, its hard to stop:) )
    by MaryW 11/10/2011 6:59:56 PM

  • @Edano hmmm? imdeed
    by elainekirk 11/10/2011 7:03:14 PM

  • @MaryW thanks Mary
    by elainekirk 11/10/2011 7:03:47 PM

  • cdn.theatlantic.com

    nuclear rucksack reactor: peswiki.com

    by Edano via Cdn.theatlantic 11/10/2011 7:06:08 PM

  • @Edano ok now I have seen it all
    by elainekirk 11/10/2011 7:22:03 PM

  • by Edano via Economic-undertow 11/10/2011 7:22:34 PM

  • Maybe they should send that to tepco
    by elainekirk 11/10/2011 7:24:32 PM

  • @MaryW very cool finding !!! finally an article that deals with corium out of containment !!! lilly has to see that.
    by Edano 11/10/2011 7:25:20 PM

  • @MaryW Amazing Find!
    by smoss 11/10/2011 7:27:59 PM

  • @smoss @Edano Thanks. There is so much in this article that I was overwhelmed. And the Video in it, all sounds too familiar with the Fukushima nuclear explosions.
    by MaryW 11/10/2011 7:29:11 PM

  • there is also lilly's corium-in-torus theory ...
    by Edano 11/10/2011 7:30:40 PM

  • @all From @MaryW's find – A high energy reaction of many generations would cause a substantial nuclear explosion. Critical components would be: material of sufficient mass, this material confined by incompressible material (sandy soil), weight of the core and the plug above it pressing the core against the neutron reflector. More than fifty generations of chain reactions would cause a multi-kiloton explosion beneath the reactor.

    – A powerful explosion would propagate a shock wave that would travel through the ground and compress other cores that might have burnt their way into the ground. This compression would cause even more powerful nuclear explosions. This was how a modest amount of fuel under Chernobyl would cause a shock wave capable of bringing the rest of the nuclear material into a super-critical state.

    www.economic-undertow.com
    by smoss 11/10/2011 7:52:34 PM

  • @all Not sure what I'm thinking about the comparison's between Chernobyl and Fukushima in the article?!
    by smoss 11/10/2011 7:53:21 PM

  • @smoss Sadly, I am thinking the comparisons between Chernobyl and Fukushima in the article and video are like a 'deja vu'. Makes me think not much has been learned in more than 20 years.
    by MaryW 11/10/2011 7:55:48 PM

  • New Calvert Cliffs nuke 'almost inconceivable': Exelon CEO


    Washington (Platts)--9Nov2011/503 pm EST/2203 GMT




    It is "almost inconceivable" that Exelon would consider building a third nuclear power reactor at Constellation Energy's Calvert Cliffs plant in Maryland after Chicago-based Exelon merges with the Baltimore-based company, CEO John Rowe told reporters Wednesday.

    Constellation, as part of UniStar Nuclear Energy, applied to the US Nuclear Regulatory Commission in July 2007 for a combined construction permit-operating license to build a new unit at the two-unit Calvert Cliffs plant using Areva's US EPR design. That application is still under review.
    www.platts.com
    by M.I.A. 11/10/2011 8:12:32 PM

  • FORTUNE -- "Sleepy" hasn't been the right word for the electric utility industry in many years, but the business has felt particularly strong zaps lately. The Japanese earthquake and tsunami rewrote the future of nuclear power, which had been in the midst of a renaissance. The Environmental Protection Agency wants to impose the most stringent emissions rules the industry has ever faced. And the rapid development of shale gas in the U.S. could revolutionize electrical generation. These are tense times for any utility -- especially one like Southern Co. (SO, Fortune 500), which is building a major new nuclear power plant near Augusta, Ga., and generates most of its electricity by burning coal. money.cnn.com
    by M.I.A. 11/10/2011 8:14:40 PM

  • Florida utility output boost to have no environmental impact

    Florida Power & Light Co.'s proposed increase in electrical output for its Turkey Point Units 3 and 4 will have no significant environmental impact, according to findings by the US Nuclear Regulatory Commission.

    The NRC said the proposed 15 per cent increase in maximum power for the two reactors at the plant 25 miles south of Miami will have no impact significantly greater than the current operations.

    According to a Palm Beach Post news report, however, Barry White, vice president of Citizens Allied for Safe Energy in Miami, which opposes the increased capacity, said the group plans to respond to the NRC.
    analysis.nuclearenergyinsider.com This has got to be one of the worst run and most vulnerable plants (to hurricane) in the USA
    by M.I.A. 11/10/2011 8:22:01 PM

  • @MaryW I think the fuku impact is going to be horribly unique , for everything they got wrong the Russians did try to evac effectively and also gave iodine, there was no attempt to sanction foodstuffs everything was banned and sadly , very sadly your man on the street is unaware of any lasting i mpact from chernobyl so to draw comparison will be read as 'low impact'. I really think people have got to be shocked into realising the horrific impact of fuku and we can only hope that as a knock on from that , that chernobyl victims are recognised and helped
    by elainekirk 11/10/2011 8:23:34 PM

  • @elainekirk The Chernobyl victims and the Fukushima victims may be in different boats, but they are certainly going down the same river. The similarities and repercussions seem to be identical.
    by MaryW 11/10/2011 8:41:58 PM

  • @MaryW yes I know but the only way to highlight chernobyl is I believe through making people witness fuku if we can keep beavering away and collecting info so people cannot ignore it only then I think will they start to find out the outcomes at chernobyl, tits around arse I know but trying to get people to heed history is like trying t get tepco to be honest, it just ain't gonna happen
    by elainekirk 11/10/2011 9:02:07 PM

  • Fuku workers tweets from rockhopper

    1) Approximately 4500 automobiles have been brought/driven out of the
    exclusion area (by residents of the area)
    2) On decontamination in cities and towns of Fukushima. It seems like
    they are still washing by high-pressure water. High-pressure water
    won't work to wash radioactive particles out from brick wall and
    Japanese traditional clay tiles (for roofing). The particles get into
    the porous materials, and cannot be washed out. Surface should be
    wiped, not washed, so that radioactive particles will not be blown
    away. After wiping out, porous material (like the brick wall) surface
    should be coated with other materials. Japanese clay roof should be
    replaced. It would be easier and safer (than washing). Many people are
    worried about radiation level, but I think that preventing radioactive
    particles being blown around in the air is more important than
    radiation levels.
    3) At this moment, preventing internal exposure is much more crucial
    than external exposure. Regardless of whether it's through food or
    decontamination work, people should not take radioactive particles
    into the body.
    4) Needless to say, children and pregnant women should not be exposed
    to any types of radiation, even with low-dose radiation. We see
    effects of low-dose radiation among people around Chernobyl.
    by elainekirk 11/10/2011 9:12:36 PM

  • back in for a bit. Grabbed the link to that big fukushima article. BTW. Tomorrow is 9 months. Thinking we should put together a sort of progress report. Let me know your thoughts on what should be in it.
    by lillymunster 11/10/2011 9:23:25 PM

  • @lillymunster you saw the china syndrome graphic ?
    by Edano 11/10/2011 9:24:55 PM

  • @Edano yes
    by lillymunster 11/10/2011 9:28:22 PM

  • @lillymunster we've been long looking for sth like this. :)
    by Edano 11/10/2011 9:29:42 PM

  • Interesting, still finishing reading.
    by lillymunster 11/10/2011 9:33:55 PM

  • @Edano (and everyone else) what is your take on this from that document?

    Heating of the core(s) would be the result of fast fission. Because cores emitting fission products cannot be sub-critical, the low detection levels of these gases is instead likely because the cores are underground.
    by lillymunster 11/10/2011 9:40:29 PM

  • @lillymunster as a non techi but logical erson that sits a lot better with me than tepco's explanation
    by elainekirk 11/10/2011 9:42:23 PM

  • @lillymunster hmmm a core can of course be subcritical, imo.
    by Edano 11/10/2011 9:45:53 PM

  • @elainekirk They make a very good case with lots of details. I don't think anyone has yet to come to TEPCO's conclusion on the Xenon cause. IIRC the closest that was found was MIA's Iodine 131 that eventually turned into a daughter product that was the xenon. But to have Iodine 131 you have to have some sort of fission going on or criticality? The idea of unit 2 melting straight down would seem logical vs. unit 3 where the explosion was so massive it could have moved corium and fuel or at least broken up the mass of fuel a bit
    by lillymunster 11/10/2011 9:46:16 PM

  • in my opinion, the most "critical" reactor is #1. i think there is nearly no fuel anymore inside containment. everyday i look at the temperature plot and wonder about the "smooth" curve.
    by Edano 11/10/2011 9:48:56 PM

  • by Edano via Houseoffoust 11/10/2011 9:49:30 PM

  • @Edano as Dean mentioned you just need the right mix of conditions and physical configuration to get a prompt criticality.

    Something else to remember. The write talks of silica sand and bedrock. Fuku is not built on true bedrock. It is a dense shale with something else in it IIRC some sort of clay or other small particle material. So at a point where bedrock is discussed what is under Fuku is much less dense than something like granite.
    by lillymunster 11/10/2011 9:50:13 PM

  • @Edano how would unit 1's temp curve compare to a decay heat curve.

    I think some of these temp readings are being misused by TEPCO, if the fuel is nowhere near the RPV anymore your just getting chimney heat in the RPV
    by lillymunster 11/10/2011 9:51:30 PM

  • @lillymunster fission happens after a neutron is captured by a nucleus. a fissioning nucleus produces fast neutrons. criticality, or chain reaction, is when there are more neutrons produced than captured. furthermore, the produced neutrons are too fast to be captured. therefore, a moderator is needed, that slows down the neutrons. this can be water.
    by Edano 11/10/2011 9:57:20 PM

  • @lillymunster a decay heat curve is a simple logarithmic curve that approaches a target temperature without ever reaching it. but it depends on the amount of water that is poured in for cooling.
    by Edano 11/10/2011 10:00:50 PM

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