Japan Earthquake

Japan Earthquake | Page 822

and my way of thinking is.. even if, the walls failed some.. at least there is a huge heat sink to absorb the energy, fission products etc that would otherwise be probably vented out..
by dean 4/23/2011 8:00:56 PM

@All back from cutting grass-whew, I'm old! Looking at recent posts, I'm going to repost my comment from this morning as pertinent to thread.23April observation:
NOTE: The major means of cooling a reactor with fuel damage caused by a LOCA is the suppression pool. This is achieved by blow down of steam thru pipes and valves into the s/p. The s/p has a very narrow range in which the water level must be kept for it to function as designed: 12'4" to 12'6". Tepco now admits that unit 1 suppression pool is full of water. This makes it extremely difficult to cool, as just pouring in more water doesn't help water around fuel to CIRCULATE and draw off heat. Water is collecting in the drywell from steam out of reactor core which is precipitating back into water. Think this makes the case for valves (which are supposed to be one-way) and pipes of the reactor coolant system being damaged by the high pressure in March. So if there is a bouyant mass of hot steam at the top of the containment vessel, it's pushing down on the water below it, applying more than normal force on the bottom of the containment vessel. NISA talks about their concerns that the mass of water could make the unit more susceptible to EQ's. I believe they specifically mean two things: that the non-design water+steam in the drywell could rupture the bottom of the drywell just from build-up; that an EQ could shift the weight/force during an EQ (think slosh) so that force is more directed at a given point vice evenly distributed. www3.nhk.or.jp

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The JAPAN FOCUS Article on Japanese Censorship
JAPAN FOCUS Article

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The 4/11 R/C Flyover

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The Gilhooly Photos
Fukushima 50 Gallery
Inside the Exclusion Zone Gallery
Inside the Evacuation Zone Gallery
Japan Earthquake 2011 Gallery

Japan Times Gilhooly Article

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The Remix

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AMA: Crisis in Japan Webinar Slides
Webinar Slides

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The Other Recon Mission

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The Recon Mission

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The NISA Assesment 4 April 2011

The 2011 off the Pacific coast of Tohoku Pacific Earthquake and the seismic damage to the NPPs
Nisa Paper

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The Congressional Hardened Vents Memo

Question regarding Fukushima Unit 2

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The RST Assessment

"As the publisher of the blog 'Idaho Samizdat' URL djysrv.blogspot.com I can confirm the document was received from a source outside the government. There is no "supposedly" about it."pdfs\> rst assessment 26march11.pdf
OCR rendered document sourced from <http://djysrv.blogspot.com/2011/04/nrc-threat-assessment-of-fukushima.html>.

This is the (bitmap) PDF file of the NRC assessment (obtained supposedly from a source outside the government.)

This material was cited by a New York Times report (U.S. Sees Array of New Threats at Japan’s Nuclear Plant, By JAMES GLANZ and WILLIAM J. BROAD, Published: April 5, 2011 <http://www.nytimes.com/2011/04/06/world/asia/06nuclear.html?_r=1>) that referenced a March 26 "confidential" threat assessment by the Reactor Safety Team of the Nuclear Regulatory Commission (NRC) and warning that the crippled nuclear plant faces fresh threats that could persist indefinitely.

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The AREVA PPT

03-2011 AREVA Fukushima Report

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The Honeywell T-Hawks
To survey high-radiation areas:

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The Smoking Gun

Possible vapor, steam or smoke leak from pipe. Not sure yet on substance, guesses at iodine? rust? tracer smoke?
This is the vent pipe from #3 that was supposed to vent hydrogen up the smoke stack tower in the image.

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The Trajectories

Reactor #3. Red lines are estimated trajectories of three large debris objects seen in the video of the explosion.
Compare to the TEPCO plutonium finds in this documentTEPCO Plutonium Map

TEPCO webcam: Time-lapse from before earthquake, 03/10/2011, to 03/25/2011; this particular author has additional time-lapse after 03/25/2011 as well: www.youtube.com

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by marie rich 4/23/2011 8:05:38 PM

Lots of smoke/steam this morning. www.tepco.co.jp
by LM 4/23/2011 8:11:01 PM

james,, may I ask was that the nuc naval office school?
by dean 4/23/2011 8:12:32 PM

4.8 EQ off coast of Honshu. earthquake.usgs.gov
by LM 4/23/2011 8:13:50 PM

EQ 49 minutes ago.
by LM 4/23/2011 8:15:22 PM

@dean no need...we'd ALL have to aplologize every other hour! :)
by marie rich 4/23/2011 8:22:34 PM

JUst because we can should we read this and maybe tuck it away safe in archives somewhere www.osti.gov
by elainekirk 4/23/2011 8:32:55 PM

At any rate, the water in c/v is the first real divergence between tepco and nisa- public disagreement, hmmm...
by marie rich 4/23/2011 8:33:17 PM

@Elaine I downloaded it and will read. Looks very promising. No harm in sticking it in the archive, so why not? It even talks about fukushima! bbl
by marie rich 4/23/2011 8:37:35 PM

@Marie unit #1 too how handy may be old but should come in useful for you studying it
by elainekirk 4/23/2011 8:39:01 PM

@elainekirk This description of the building structure from your post might be useful to Nancy!2. Description of the Structure
Tt.e reactor building of Unit 1, which was subjected both to forced vibration tests and :
natural earthquakes Is about 58 m in height froa the base of the foundation oat, the depth
of embedment of which is about 14 m below ground level. The building consists of a
reinforced concrete structure up to a height of about 43 m from the base, and a steel
structure and truss roof above this level. The reinforced concrete structure consists of
six floors, Including the basement floor. The plan dimensions of tha building are 42 n x 42
m at lower sections, and 42 m x 31 m at upper sections. The building is structurally
isolated from the adjacent turbine building and radwaste building. The reactor pressure
vessel is at the center of the building, surrounded successively by a concrete gamma shield
wall, a bulb-shaped steel containment vessel, and a reinforced concrete.shield wall. The
reactor pressure vessel is connected to the gamma shield wall with horizontal supports and
the steel containment vessel Is connected to the gamma shield wall by a stabilizer. The
containment vessel is also connected to the other reinforced concrete shield wall with shear
lugs.
by marie rich 4/23/2011 8:54:35 PM

@elaine That is from your post, and it is specifically a description of fukushima daiichi unit 1
by marie rich 4/23/2011 8:55:49 PM

@Marie that is brilliant to be honest I was having trouble reading it and knew it was daichi 1 from an abstract so I just checked that daichi 1 was in the text and posted it thank you for copying that down I will copy your post and add it to the email I have just attatched it to for Jim annd I think I have nancy's email too if so I will cc it to her .
Foumd Nancy's mail and cc'ed her thank you I put your text into the body of the mail
Can you tell I have archivephobia
by elainekirk 4/23/2011 9:01:22 PM

@elainekirk HA! I've got to laugh, sounds like typical TEPCO: It appears that no attempt was made to estimate modal damping directly from the test
data using nethods such as half-power bandwidth or other similar ones. Instead a simulation
analysis of the tests was performed employing an analytical model with certain assumed
physical constants [3,4]. Apparently the physical constants were adjusted ur.til the
analytical resonance curves and mode shapes agreed with corresponding test data. This
analysis gave the modal damping, as a percentage of critical dampings to be 33.7, 8.4, and
5.4 for the three modes. They jigged the test!
by marie rich 4/23/2011 9:06:18 PM

@Marie to be honest I think there are going to be big insurance problems because I have found no evidence of them complying with the 06/07 review of quake/tsunami work that chuba quote as their reason for shutting their #1 #2 Hamaoko reactors which were already more compliant than daichi's from what I can see
by elainekirk 4/23/2011 9:10:57 PM

"One of my loyal blog readers just asked me a very interesting question. And frankly, I don't know the answer. I'm hoping that someone who reads this blog can help. Here's what "justabystander" wrote:

Subject: Fukushima Daiichi Radiation.

I was wondering if it would be possible for you to take a good look at the following image, with a focus on the possibility of getting a reasonable radiation count from the light spots in the image. "
by Majjham Zazen 4/23/2011 9:13:18 PM

Sorry here is the link www.hackerfactor.com
by Majjham Zazen edited by elainekirk 4/23/2011 9:13:55 PM

Beyond Nuclear petitions Nuclear Regulatory Commission
for suspension of 21 U.S. atomic reactor operating licenses
in wake of Japanese nuclear catastrophe...
Watchdog group alleges General Electric Boiling Water Reactor Mark 1 design’s
weak containment, inadequate experimental venting back fit, and radioactive waste storage pool
are accidents waiting to happen.
The 21 GE BWR Mark 1 atomic reactors at risk of catastrophic
containment failure in the U.S. are, in alphabetical order: Browns Ferry Units 1, 2, and 3 in Alabama;
Cooper Unit 1 in Nebraska; Dresden Units 2 and 3 in Illinois; Duane Arnold Unit 1 in Iowa; Fermi Unit 2 in
Michigan; Fitzpatrick Unit 1 in New York; Hatch Units 1 and 2 in Georgia; Hope Creek Unit 1 in New Jersey;
Monticello Unit 1 in Minnesota; Nine Mile Point Unit 1 in New York; Oyster Creek Unit 1 in New Jersey;
Peach Bottom Units 2 and 3 in Pennsylvania; Pilgrim Unit 1 in Massachusetts; Quad Cities Units 1 and 2 in
Illinois; and Vermont Yankee Unit 1 in Vermont. www.beyondnuclear.org
by Reed 4/23/2011 9:15:04 PM

@Majjham I saw the techi's discussing this earlier and you cannot do it from a photo from what I understood of the conversation.

by elainekirk 4/23/2011 9:16:03 PM

@elainekirk Tanks. I do not now any thing in just subject.I'm just fishing around and bringing here....
by Majjham Zazen 4/23/2011 9:17:13 PM

@Majjham Zazen radiation no, but light spots might mean something. Do you have the photo?
by Nancy 4/23/2011 9:17:57 PM

@Majjham I am glad you did they are certainly interesting those dots
by elainekirk 4/23/2011 9:18:19 PM

@nancy www.hackerfactor.com second pic
by elainekirk 4/23/2011 9:19:03 PM

@Nancy it is here www.hackerfactor.com
by Majjham Zazen 4/23/2011 9:19:03 PM

Hmm. Very odd. Don't know if those could be camera artifacts, never seen a camera artifact like that before.
by Nancy 4/23/2011 9:23:06 PM

@Majjham Zazen Check out bionerd23 channel Jan. 10 2009. on Youtube. I'll try for link. There were flashes on robot cameras when inside units, also. www.youtube.com
by marie rich 4/23/2011 9:28:27 PM

@Nancy Did you seee my post @3:54(CST) on this page? Elaine found a little goody and it has good building info.
by marie rich 4/23/2011 9:31:36 PM

@marie rich I have not read it yet but grabbed the link
by Nancy 4/23/2011 9:33:01 PM

@marie, didn't you have an idea of the technical cause of the little in air flashes?
by Nancy 4/23/2011 9:34:01 PM

@Nancy @elainekirk Hi, had nice nap. figured out the video grabber. Hanging out with Moulder and Scully, actually it was David and Gillian. The search function on the server is awesome also.
by Jim Carver 4/23/2011 9:37:46 PM

@Nancy For the video artifacsts/flashes- ionizing radiation. The youtube post shows an experiment about it. For teppycam, i think its flourescence of xenon infused water vapor. Not bright enough to see in daylight, but able to glow on firrst and last dark frames of the day.
by marie rich 4/23/2011 9:40:34 PM

by marie rich 4/23/2011 9:41:15 PM

@Jim Hi I have sent you a mail with some links feel free to dump anything not usefull - any idea anybody where daichi store their 179,293 barrels of
Power station waste
1. Homogeneous solid, packed solid and miscellaneous solid??/
by elainekirk 4/23/2011 9:41:58 PM

@marie rich They use the same thing in Physics labs to "see" ionizing radiation. First type used is called a bubble chamber, a more advanced one is called a cloud chamber.
by Jim Carver 4/23/2011 9:43:10 PM

The Sea Leaks Alone Would Be Rated Level 5 or 6...
TEPCO has said leakage into the sea started April 1, but records show radiation levels in seawater peaked on March 31. It is therefore highly likely that radioactive water leaked into the ocean before April 1.
The estimated total amount leaked, 4,700 terabecquerels, is 30,000 times the amount of radioactive material contained in the water discharged on April 4-5.
It is also about 20,000 times the amount of radioactive substances the plant is legally permitted to release into the environment in a year. www.yomiuri.co.jp

by Reed 4/23/2011 9:46:21 PM

@jim do you promise nothing will break if I touch it?
by elainekirk 4/23/2011 9:48:08 PM

@elainekirk It is foolproof. Just type something in the search box and check it out.
by Jim Carver 4/23/2011 9:49:07 PM

I did some looking at the image Majjam posted. Pulled it up in photoshop on the big HD tv. The spots are very odd an do not follow a uniform pattern. Some are like a pixel removed out of the image but then there is a color halo around it. Other spots are blurry transparent color in either red or purple. It could be radioactive dust on the lens messing with digital camera. It could be some of the airborne flashes marie was talking about. How we could figure out would be to go grab all of the original source images (probably at cryptome) from that same day's images. Look at them by the time stamp that is hidden in the photo data (I can pull it up in phototshop). Then compare them by time stamp and location to see if the light spots show up before or after that photo's time stamp and if they show up in locations other than that image by #2. If there is only those light artifacts around #2 and not on images elsewhere after that image then they are likely not artifacts due to dust on the lens. Either the radiation was so high in that area or there were literal flashes in the air. Does anyone know what building the bots were in in the video where flashes were seen?
by Nancy 4/23/2011 9:57:27 PM

@marie tanks for the link. I m using a android phone . Difficult to type but good to stay conect on the scribblers :-))
by Majjham Zazen 4/23/2011 9:57:30 PM

@Nancy Purely by memory, it was the first video at abou4:20- 4:30 into it.
by marie rich 4/23/2011 9:59:19 PM

@Elaine I'm finding it amusing to read the subtle little digs at the scientific method in the EQ stress test evaluation of that osti link (1985). In refrencing the original tests and actual consequences of the 1974 EQ: Thio seems to be a consequence of the unexplained reduction in the value
used for the physical constant representing damping In the steel reactor vessel in the
earthquake simulation analysis.
by marie rich 4/23/2011 10:04:09 PM