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Japan declares 'nuclear emergency' after quake

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posted on Apr, 29 2011 @ 08:21 AM
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Image of rods in Spent Fuel Pool #4





Tepco
2nd source



Reactors: background

The Fukushima Daiichi reactors are GE boiling water reactors (BWR) of an early (1960s) design supplied by GE and Toshiba, with what is known as a Mark I containment. Reactors 1-3 came into commercial operation 1971-75. Reactor power is 460 MWe for unit 1, 784 MWe for units 2-5, and 1100 MWe for unit 6. The fuel assemblies are about 4 m long, and there are 400 in unit 1, 548 in units 2-5, and 764 in unit 6. Each assembly has 60 fuel rods containing the uranium oxide fuel within zirconium alloy cladding. Unit 3 has a partial core of mixed-oxide (MOX) fuel (32 MOX assemblies, 516 LEU). They all operate normally at 286°C at core outlet under a pressure of 6930 kPa and with 115-130 kPa pressure in dry containment. NISA says maximum design base pressure for reactor pressure vessels (RPV) is 8240 kPa at 300°C, and for containment (PCV) is about 500 kPa*. At low containment pressures hydrogen and other gases are routinely vented through charcoal filters which trap most radionuclides.



Fuel Ponds: background

At the time of the accident, in addition to a large number of used fuel assemblies, unit 4's pond also held a full core load of 548 fuel assemblies while the reactor was undergoing maintenance, these having been removed at the end of November.

The temperature of these ponds is normally low, around 30°C when circulation is maintained with the Fuel Pool Circulation and Clean-up (FCP) system, but they are designed to be safe at about 85°C in the absence of pumped circulation (and presumably with moderate fuel load). They are about 12 metres deep, so the fuel is normally covered by 7 metres of water.

Unit 2, 3 & 4 ponds are about 12 x 10 metres, with 1240, 1220 and 1590 assemblies capacity respectively (unit 1 is about 12 x 7 m, 900 assemblies). Unit 4 pond contains a total 1331 used assemblies (783 plus full fuel load of 548), giving it a heat load of about 3 MW thermal, according to France's IRSN, which in that case could lead to 115 cubic metres of water boiling off per day, or about one tenth of its volume. Unit 3's pool contains 514 fuel assemblies, unit 1 has 292 and unit 2 has 587, giving it a heat load of 1 MW. There is no MOX fuel in any of the ponds.

Two of the reactor unit ponds (2 & 4) were unusually full before unit 4 core was unloaded in November, since there was little spare space (only for 465 assemblies) in the central fuel storage pond on site. Thus there was a lot more fuel in the reactor ponds with correspondingly high heat loads and cooling requirements than might have been the case.

Moving the used fuel from reactor ponds to central storage involves loading it under water into casks which are lowered down and trucked the short distance (see RH side of cutaway diagram above). It requires access from the service floor and the use of cranes which were damaged in the hydrogen explosions.

The central fuel storage on site near unit 4 has a pond about 12 x 29 metres, 11 m deep, with capacity of 3828 m3 and able to hold 6840 fuel assemblies. Its building is about 55 x 73 m. (There are 6375 assemblies in the undamaged central pool storage on site, with very low decay heat, and 408 in dry cask storage - utilized since 1995 for used fuel no longer needing much cooling.)


World Nuclear Organization: Fukushima Accident

Details.

I highly recommend taking the time to view this video dated April 22. It is the most extensive footage I have seen from the grounds and control room at Fukushima. We need a save and preserve mission on this a.s.a.p. And translations...



Can someone download and save this video? I have my doubts as to how long it will remain available. Thanks in advance.
edit on 29-4-2011 by DancedWithWolves because: (no reason given)




posted on Apr, 29 2011 @ 08:35 AM
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Originally posted by Chakotay
It's all here: Explosive Disassembly of Supercritical Reactor Core...

Someone threw the Pokemon ball...


(disassembly is a good thing?)


Very interesting, I'm not exactly sure of the connection the Fukishima plants, but it is very interesting.


I am old enough to remember its falling out of the sky, and that everyone pretty much agreed it was a 'very bad thing/idea' (tm), at the time.

I am pretty much certain everyone agrees that launching spent fuel into orbit and then into the sun is a novel idea, but has so many risks that it falls currently under the title of. "A Very Bad Idea," (tm) due to the state of technology and the failure of launch vehicles.) EG, no nation has achieved a 'perfect, never catastrophically fail,' launch record, ever.

M.



posted on Apr, 29 2011 @ 08:41 AM
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reply to post by DancedWithWolves
 


Uploaded Video

Spent Fuel in Spent Fuel Pool Reactor 4




posted on Apr, 29 2011 @ 08:47 AM
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reply to post by imlite
 


Thank you kindly. I cannot open anything on the TEPCO site and have not been able to for a couple weeks now. No idea why. The upload is much appreciated. Please see the video above at the bottom of my post. Very important as well.



posted on Apr, 29 2011 @ 08:49 AM
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Originally posted by zorgon

Originally posted by pattonisit
new pics from cryptome...

cryptome.org...



WHY are they using those robot machines to clean up THIS area?





edit on 29-4-2011 by zorgon because: (no reason given)


That looks like material that could have composed the roof(s) of: #'s 1, 2 & 4, If its #1, or #4 I could say it's likely moderately 'hot', If it is from #2, It'd say it's "Freakin' Hot" and not in the Dry heat. Wet heat, sort of manner.

M.

edit on 29-4-2011 by Moshpet because: It's early.

edit on 29-4-2011 by Moshpet because: Damned early.



posted on Apr, 29 2011 @ 09:15 AM
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Originally posted by imlite
reply to post by DancedWithWolves
 


Uploaded Video

Spent Fuel in Spent Fuel Pool Reactor 4






Seems they lost some assemblies through melt. if you notice the distortions of the racks and different sized rods assemblies I would say that it was in full meltdown when they refilled it with water - just in time to stop total failure.

Hope the glowing areas in the upper right of the video are just reflections and not low level criticality.

I note they put the camera in quick and take it out just as quick - keep it in any longer and it would fail through heat and radiation.



posted on Apr, 29 2011 @ 09:18 AM
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The other TEPCO video released today - Packbot in Reactor 1. They seem not worried about radiation any longer - they just want to check the dials and status of the reactor.




posted on Apr, 29 2011 @ 09:45 AM
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This is no conspiracy, the Japanese are actively and openly trying to censor media (and other sources):


The Japanese government has moved to crack down on independent reportage and criticism of the government’s policies in the wake of the disaster by deciding what citizens may or may not talk about in public.

A new project team has been created by the Ministry of Internal Affairs and Communication, the National Police Agency, and METI to combat “rumors” deemed harmful to Japanese security in the wake of the Fukushima disaster.

The government charges that the damage caused by earthquakes and by the nuclear accident are being magnified by irresponsible rumors, and the government must take action for the sake of the public good.

The project team has begun to send “letters of request” to such organizations as telephone companies, internet providers, cable television stations, and others, demanding that they “take adequate measures based on the guidelines in response to illegal information. ”The measures include erasing any information from internet sites that the authorities deem harmful to public order and morality.

Japan Focus

Letter of Request Via google translation - the original japanese letter can be found on the METI site METI (A genuine Japanese translation would be appreciated!)


false rumors to incite public unrest prank, circulated by the light of the circumstances to write to the bulletin boards, etc., concerned about false rumors on the Internet. agencies work together for the site administrator, etc., including information voluntarily remove obscene laws and requested to take appropriate action and make efforts so that accurate information is provided to users


With co-operation of the Japanese media:
Telecommunications Carriers Association, Telecom Services Association of Japan, the Japan Cable Television Association and the Japan Internet Providers Association

About METI...

NISA - the Japanese safety watchdog - was established as a special entity of the METI


Prime Minister Naoto Kan is looking into the feasibility of separating the Nuclear and Industrial Safety Agency from the Ministry of Economy, Trade and Industry, according to government sources.

Japn Times

METI (Japanese Ministry of the Economy, Trade and Industry) have big plans for nuclear energy:

May 05, 2003 This summer, the Japanese Ministry of the Economy, Trade and Industry (METI) will issue a ten-year energy plan prepared cooperatively with the Japanese Federation of Electric Power Companies (FEPC). The document will include measures for reducing Japan's reliance on Middle Easter oil and facilitating new reactor projects.
Aveva

This news is about a week old but I missed it first time round.



posted on Apr, 29 2011 @ 09:51 AM
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Ohayo Gozaimasu Nihonjin(I know a lot of you are in bed by now, but you can see posts later when you wake up on the 30th), and everyone else reading/posting thoughts here...I was reminded of this video this am... it should play, its on fox, the ones posted from you tube seem to have problems in that regard...could mean the media got the word from Japan's government to stop embarrassing Tokyo Electric and their President?
www.foxnews.com...

If that picture Zorgon showed with a beam hitting on of the Towers (didn't we see beams bouncing and hitting other things in the area as another poster postulated as in a phased array causing a seemingly similar effect to an antenna pattern) (I was thinking more like a Yagi_Uda array-my error) and later showing the plasma patterns going all over the next picture he posted might lead to who else already had this tech the navy was so proud to show off the west coast on April 8, 2011? (I just tried the video posted on Fox and it didn't play; would that mean there is a link?) I looked for it this am on New Scientist, and it came up missing completely there where I first saw it.

Plausible deniability by whom? Who would be the most likely sword rattling candidates against the people of Japan? Or would the government or some group attack its own country and why? Probably a lot of roads to travel on that thought.......but that would be off topic, so I can't go there. Or could it be an instantaneous accidental or conceived (by some) criticality recently posted by Mosphet? Could there be a nexus to other threads on ATS? Very possibly might be a rational guess. Its usually hard to see the forest for the trees when you're looking at snippets vice the big picture overall, kinda like doing a giant jigsaw puzzle you never saw the picture on the top of the box first.

Love, Peace, Harmony, Light
Communicator

edit on 29-4-2011 by Communicater because: first word-spelling error corrected



posted on Apr, 29 2011 @ 10:31 AM
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reply to post by DancedWithWolves
 


Nice find, downloading it now, much of it appears to be 1080HD and new so will make for some very good image analysis in the morning over breakfast



Originally posted by zorgon

Originally posted by pattonisit
new pics from cryptome...

cryptome.org...


WHY are they using those robot machines to clean up THIS area?






I'd assume its a distance and source issue with the radioactive debris like at chernobyl. Look at the walls of the truck building, appears to have metallic sheeting on it. And at least this time they have different images on each screen, someone must have got a kick up the bum when a similar shot, with doubled up photoshop-esque screens, was posted here earlier on this month. I wonder if they are picking up what's left of fuel rods, core debris or other radioactive junk? Look which way the wind was blowing when #3 went up, right towards this cleanup area and on to Futaba/Miyagi area, which always comes up lots of different colours in radiation measurement and simulation charts.

edit on 29/4/11 by GhostR1der because: added more observations



posted on Apr, 29 2011 @ 10:39 AM
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Agence France Presse - Nuclear plant stress test results by year-end: EU
29 April 2011, 15:42 CET


www.eubusiness.com/news-eu/finland-energy.9qb


(HELSINKI) - The results of stress tests on European nuclear power plants should be clear by the end of the year, EU energy commissioner Gunther Oettinger said in Helsinki Friday.

"The order we have is ... to finish this stress test at the end of the year, and going into the European Council at 8th or 9th of December," he told a joint press conference with Finland's outgoing Economic Affairs Minister Mauri Pekkarinen.

The stress test initiative was launched in March by the Western European Nuclear Regulators Association (WENRA) in response to the ongoing nuclear crisis in Japan to determine whether European reactors could withstand similar conditions.

(...)

edit on 29-4-2011 by jjjtir because: (no reason given)



posted on Apr, 29 2011 @ 10:57 AM
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Japan prime minister's nuclear adviser resigns



TOKYO: A senior nuclear adviser to Japanese Prime Minister Naoto Kan submitted his resignation Friday, saying the government had ignored his advice and failed to follow the law.

Toshiso Kosako, a Tokyo University professor who was named last month as an advisor to Kan, said the government had only taken ad hoc measures to contain the crisis at the crippled Fukushima nuclear power plant.

LINK


After reading this one can see why Japan needs to stifle the press.

Edit: sorry about the cross post jjjtir
AD
edit on 29-4-2011 by AlaskanDad because: read added edit

edit on 29-4-2011 by AlaskanDad because: (no reason given)

edit on 29-4-2011 by AlaskanDad because: typo



posted on Apr, 29 2011 @ 11:06 AM
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reply to post by AlaskanDad
 


No need to, had already removed that.

---

Deutsche Presse-Agentur\SAPA - New robots for Japan nuclear plant
2011-04-29 13:26


www.news24.com/SciTech/News/New-robots-for-Japan-nuclear-plant-20110429


Tokyo - The operator of Japan's damaged nuclear station has said it would deploy two kinds of remote-controlled robots to help stabilise the plant while reducing workers' exposure to radiation, news reports said on Friday.

Tokyo Electric Power Co, which runs the Fukushima Daiichi nuclear power station, said they would introduce the new robots in early May.

Two Talon model robots developed by Britain's QinetiQ Group Plc, and one Quince model, developed jointly by the Chiba Institute of Technology and Tohoku University, were to be deployed.

(...)



posted on Apr, 29 2011 @ 11:38 AM
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Saturday, April 30, 2011

Panel to probe nuke accident



Kan said "the myth of the safety of nuclear energy" was prevalent among government and utility officials and Japan needs to "humbly reflect" on such wrong perceptions.

LINK


Out of the article I think the above statement was most profound and people from other countries need to pay attention.



posted on Apr, 29 2011 @ 12:22 PM
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Someone doesn't want the Japanese people to make their own decisions:


The chief of the Meteorological Society of Japan has drawn flak from within the academic society over a request for member specialists to refrain from releasing forecasts on the spread of radioactive substances from the troubled Fukushima Daiichi nuclear plant.



In the request posted March 18 on the society's website, Hiroshi Niino, professor at the University of Tokyo, said such forecasts, which he says carry some uncertainty, ''could jumble up information about the government's antidisaster countermeasures unnecessarily.''

''The basic principle behind antidisaster measures is to enable people to act on unified reliable information,'' he said.


The problem is that no one is providing any reliable information.

Kyodo



posted on Apr, 29 2011 @ 12:38 PM
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reply to post by GhostR1der
 


Thank you so much for saving this video. With the full force censoring going on...I was afraid this would disappear. The footage is amazing and quite in-depth. Far superior to what we have seen from TEPCO in recent days/weeks.



I truly look forward to you and all our members having an opportunity to review this footage. It's a recent tour of Fukushima post disaster from the ground. Thanks again for archiving in case it goes *poof* on youtube.
edit on 29-4-2011 by DancedWithWolves because: (no reason given)



posted on Apr, 29 2011 @ 12:48 PM
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I couldn't download the video because of my machines limited capabilities but I noticed this person God bless him has a ton of video on his channel.

LunaticEclipseJapan7's Channel
www.youtube.com...



posted on Apr, 29 2011 @ 01:21 PM
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Update: more information on the reason for Kans advisor Toshiso Kosako resigning his post.



Japan's education ministry figured that children could spend 8 hours a day in a schoolyard with as much as 3.8 microsieverts per hour of radiation and then 16 hours a day inside a building with 1.52 microsieverts per hour and stay within a 20 mSv per year limit. Some 800 groups and 34,000 individuals have signed a petition demanding the withdrawal of the education ministry's 20 mSv per year standard, according to a coalition of citizens' organizations that will present the petition to the government on 2 May.

"Setting this (radiation exposure) number for elementary schools is inexcusable," says Kosako, according to Yomiuri Online. His resignation is expected to put additional pressure on the government to rethink its decision.

LINK


These pertinent details were not a part of the article I previously posted, I can only wonder as to why they were not included!



posted on Apr, 29 2011 @ 01:38 PM
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reply to post by Moonbeams771
 


Here is the full - as subscribed, embargo free version of that article. Longer and information hidden under paywall...

Kyodo News International - Weather chief draws flak over plea not to release radiation forecasts
Friday, April 29, 2011 1:08 PM


www.istockanalyst.com/business/news/5100280/weather-chief-draws-flak-over-plea-not-to-release-radiation-forecasts



posted on Apr, 29 2011 @ 01:56 PM
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Originally posted by jjjtir
reply to post by Moonbeams771
 


Here is the full - as subscribed, embargo free version of that article. Longer and information hidden under paywall...

Kyodo News International - Weather chief draws flak over plea not to release radiation forecasts
Friday, April 29, 2011 1:08 PM


www.istockanalyst.com/business/news/5100280/weather-chief-draws-flak-over-plea-not-to-release-radiation-forecasts


I felt that this news helped explain this previous post of mine;


Originally posted by AlaskanDad
I found this news from kyodo interesting as it shows the % of data the public is getting on FU-shima:


Gov't panel releases 2 of over 2,000 radiation dispersal estimates

TOKYO, April 18, Kyodo

The Nuclear Safety Commission of Japan has released only two computer-simulated estimates of radioactive substance dispersal since the nuclear accident at the Fukushima Daiichi power plant, although more than 2,000 of them were made, sources familiar with the matter said Monday.
LINK




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