Japan Earthquake

Japan Earthquake | Page 699

Now, not nor, I am too, are you not talking about the fuel storage pools?
by Ralph Unger 4/14/2011 9:11:47 AM

Only 5 & 6 kept some power.
by Ralph Unger 4/14/2011 9:12:30 AM

@Ralph Unger Per power to the seals and whatnot. Has there been any real indication of what they powered back up, (or were able to), when they powered stuff back up? Coffee pot: On! Teapot: On! Etc.
by Rob in SF 4/14/2011 9:12:41 AM

I would not know that, I am shocked that it takes power to maintain the seals at all.
by Ralph Unger 4/14/2011 9:13:56 AM

That is not the US standard .
by Ralph Unger 4/14/2011 9:15:17 AM

Hardened venting is also a US standard that was not met by the Japanese which led to the explosions because the had light ductwork and not solid piping as required in the US by GE. Which broke in the earthquake.
by Ralph Unger 4/14/2011 9:18:01 AM

@Ralph Unger As I understand it they did all the mods
by NHK Listener 4/14/2011 9:19:49 AM

@Ralph Unger - There's a hypothesis that it leaked through the containment cap prior to venting.
by Hank Scorpio 4/14/2011 9:19:58 AM

I hate GE, but they covered the bases on this one. @NHK Only the nods to the torus.
by Ralph Unger 4/14/2011 9:20:21 AM

Good basis for it, too. Far better than the NRC head's BS "mighta been the spent fuel pools that caused the explosions."
by Hank Scorpio 4/14/2011 9:20:31 AM

Baffles and beefing up of the torus.
by Ralph Unger 4/14/2011 9:21:32 AM

Nish: NEWS ADVISORY: Tax hike needed for Japan's post-quake reconstruction: panel head (18:01)
- KYODO
by Rob in SF 4/14/2011 9:21:57 AM

They never re-inforced the venting.
by Ralph Unger 4/14/2011 9:22:05 AM

In the US , we had to. :-)
by Ralph Unger 4/14/2011 9:22:47 AM

~@NHK the flooding theory a few months before tey had flooded a reactor jjust give me a min I wil find link
by elainekirk 4/14/2011 9:23:09 AM

NISA Press Conference on now...but only in Japanese... however a few people are translating into English: www.ustwrap.info
by ColorMeRed 4/14/2011 9:23:39 AM

@Ralph Unger www.gereports.com
by NHK Listener 4/14/2011 9:24:07 AM

@NHK I did not read it all, but that looks like one of the reports I read.
by Ralph Unger 4/14/2011 9:25:08 AM

@Ralph Unger It says they made all the same changes we did
by NHK Listener 4/14/2011 9:25:51 AM

the Nuclear and Industrial Safety Agency said that the water level at the vertical part of the trench as of 7 a.m. Thursday had increased by about 3.5 centimeters from the level observed at 6 p.m. Wednesday.

The level of the water is 2.5 centimeters lower than just before the water-transferring mission started.

Hidehiko Nishiyama, the agency's spokesman, said that the rise in the water level is likely linked to the continued injection of water injection into the No. 2 reactor core, which is necessary to prevent the nuclear fuel inside from overheating.

''As there is believed to be around 20,000 tons of water (in the No. 2 reactor turbine building and the trench connected to it), we feel the difficulty of lowering the level of the water in a stable manner,'' he said. english.kyodonews.jp
by Rob in SF 4/14/2011 9:26:06 AM

Not the venting mods, I cannot find the link , but it was a big deal when the recommended it.
by Ralph Unger 4/14/2011 9:26:55 AM

@Ralph Unger Quote All of the modifications were made in accordance with regulatory requirements. In the United States, for example, the NRC issued a generic industry requirement in 1980 for the Mark I containment that the industry used to make modifications.

We understand that all of the BWR Mark I containment units at Fukushima Daiichi also addressed these issues and implemented modifications in accordance with Japanese regulatory requirements.
by NHK Listener 4/14/2011 9:27:59 AM

I found it easily bit now it is very hard to find, My source was GE main tech page, now.. it is gone.
by Ralph Unger 4/14/2011 9:28:03 AM

Tokyo Electric, known as TEPCO, is preparing to transfer more of the highly radioactive water into a facility for nuclear waste disposal in the plant, which can accommodate 30,000 tons of liquid.
<...>

TEPCO also started looking into how to check the quake resistance of already heavily damaged reactor buildings at the site in line with an order issued Wednesday by the government's nuclear regulatory agency, in light of strong aftershocks from the March 11 quake.

The agency has told the utility to immediately examine the buildings and consider reinforcement work if they are judged as not sufficiently quakeproof.

TEPCO, however, has said that it cannot ''immediately conduct an investigation'' unless it confirms the safety of areas where checkups will be conducted.
english.kyodonews.jp
by Rob in SF 4/14/2011 9:28:17 AM

@Ralph Unger Stuff is DEFINITELY moving. TEPCO has recently moved their press photos somewhere... AREVA has moved stuff.
by Rob in SF 4/14/2011 9:29:49 AM

@NHK that is the old baffle and torus beefing up crap, I cannot find the source for the venting "Make it more robust" that I found a month ago.
by Ralph Unger 4/14/2011 9:29:54 AM

Areva is like the French making the first move in Libya, just to prove their hardware(jet plane that had never been in combat) and screw the world.
by Ralph Unger 4/14/2011 9:31:13 AM

@Ralph Unger markey.house.gov
by NHK Listener 4/14/2011 9:32:09 AM

@NHK Listener: hi again (Jo l'indien, from work)
I read somewhere that Tepco was once allowed to increase the SFP storage capacity from what it was designed for. Don't remember where I read that, unfortunately.
by Jocelyn Mayer 4/14/2011 9:32:48 AM

Right now in NISA conference....they said..no 3 pressure vessel upside becomes over 200C and they don't know why
by ColorMeRed 4/14/2011 9:32:51 AM

NHK Sweet link I guess. :-) I can't redact this post though LOL>
by Ralph Unger 4/14/2011 9:33:40 AM

@Jocelyn Mayer They reracked so they could max out capacity.. The article I posted below show when
by NHK Listener 4/14/2011 9:33:41 AM

@NHK not the flooding one but may be relevant #4 www2.jnes.go.jp will go find flooding one
by elainekirk 4/14/2011 9:35:13 AM

@NHK Listener: OK, thanks for the info
by Jocelyn Mayer 4/14/2011 9:35:20 AM

50% of my links go missing after 2 days, Nothing to see here, move along....
by Ralph Unger 4/14/2011 9:35:32 AM

@Ralph Unger So understand they did all the same upgrades we did. So we can advance the conversation a bit.. :-)
by NHK Listener 4/14/2011 9:35:34 AM

@elainekirk No it is ok
by NHK Listener 4/14/2011 9:36:13 AM

@NHK did you read the document you linked? It is re-dacted and it does not say that they did the changes. Lemme check again though.
by Ralph Unger 4/14/2011 9:37:00 AM

@elainekirk The would of flooded the reactor to open it. We know it was open. The question would be if the gates were open at the time of the quake.
by NHK Listener 4/14/2011 9:37:16 AM

@NHK "Subject: RE: NRC: Question regarding Fukushima Unit 2
Sent: Apr 5, 2011 8:43 AM
It is our understanding that:
Fukushima Daiichi reactors did have hardened vents.
Congressional Affairs Officer
U. S. Nuclear Regulatory Commission
From: [mailto: @mail.house.gov] Sent: Tuesday, April 05, 2011 8:33 AM To:
Cc: Subject: Re: NRC: Question regarding Fukushima Unit 2
Thanks. One more question - did the fukushima reactors have hardened vents?
Office of Representative Edward J. Markey 2108 Rayburn House Office Building Washington, DC
20515 202-225-2836 -------------------------- Sent using BlackBerry
From: [mailto: @nrc.gov] Sent: Tuesday, April 05, 2011 08:16 AM To:
Cc: < nrc.gov> Subject: NRC: Question regarding Fukushima
Unit 2 You had asked if the core of Unit 2 had melted into the torus. Here is the view from the NRC
Emergency Operations Center:
Based on radiation readings in the drywell and the torus (3340 rem/hour and 91 rem/hour, respectively), the NRC staff
speculates that part of the Unit 2 core may be out of the reactor pressure vessel and may be in the lower space of the
drywell. Lower radiation readings in the torus suggest that there is not core material in the torus.
Please let me know if I can provide additional information,"
by Ralph Unger 4/14/2011 9:38:37 AM

@Ralph Unger That is a second reply to an email.. The reactor had hardened vents that was the first question.. The second question was if it had a melt through into the torus..
by NHK Listener 4/14/2011 9:40:28 AM

@Ralph Unger notice the re in the title
by NHK Listener 4/14/2011 9:41:01 AM

@NHK then link that pls.
by Ralph Unger 4/14/2011 9:41:05 AM

@Ralph Unger So this harkens to your earlier concern, "we feel the difficulty of lowering the level of the water in a stable manner". Kinda' sounds like they're afraid of the structural integrity, and if they pump out all the water in #2 they'll compromise it, or maybe they just fear the rads? english.kyodonews.jp
by Rob in SF 4/14/2011 9:41:12 AM