Japan Earthquake

Japan Earthquake | Page 177

Link to another blog: bravenewclimate.com Worth a look...
by Karen Warren 3/28/2011 8:41:02 PM

The others weren't inspected/certified for MOX, IIRC. Apparently #3 just went to Mox this past fall: www.nucpros.com
by Markfm 3/28/2011 8:41:28 PM

i was wondering if the absense of water moderating the fast neutrons to thermal neutrons could allow the P240 and 242 in the older fuel asssemblies to udergo an increased rate of fission.
by Treiagonaut 3/28/2011 8:42:01 PM

@dean -- question: regarding ratio of Pu238 to 239/240, can you extrapolate any meaningful information for us from the TEPCO Pu samplings?
by DennisV 3/28/2011 8:42:15 PM

@tenzing: mox fuel was loaded into reactor #3'adter a long debate within the prefecture. the article I read was dated august 20 2010 fo approval. it was then loaded in the fall sometime.
by elise 3/28/2011 8:42:17 PM

@dean@Natalie what do you think of green in this video this www.youtube.com
by Tenzing 3/28/2011 8:42:23 PM

@dean They give themselves away in one of their supporting documents though: www.tepco.co.jp Down at the bottom it states: "thus these Pus are considered to come from the recent incident"
by Jojo 3/28/2011 8:42:33 PM

Dennis.. I'll write that question down and have to research it more..
by dean 3/28/2011 8:43:41 PM

@Tenzing img.photobucket.com Same image pushed even farther, showing that all of the artifacts that appear are green. Which is why I don't see any reason to be concerned that its green.
by Natalie via Img.photobucket 3/28/2011 8:43:43 PM

Not sure if this has been posted before. A pretty detailed wikipedia article on what happens when corium is formed and melts through the RPV. Answered my question from yesterday "the dynamics of the movement of corium in and outside of the reactor vessel is highly complex, and the number of possible scenarios is wide; slow drip of melt into an underlying water pool can result in complete quenching, while a fast contact of large mass of corium with water may result in destructive steam explosion." en.wikipedia.org(nuclear_reactor)
by Jay77 3/28/2011 8:44:21 PM

I wish they would say what the isotope of pu they found.. they can take a soil sample and put it in a multi channel analyzer to give the energy levels and pinpoint the isotope
by dean 3/28/2011 8:44:24 PM

@elise I guess my point is because of the seemingly false information coming from TEMPCO why are we so willing to believe the information about where the MOX fuel is/was located?
by Tenzing 3/28/2011 8:45:19 PM

@Natalie I'm referring to the green in this video, not the tempco webcam www.youtube.com
by Tenzing 3/28/2011 8:46:17 PM

@dean / peter : please, a link to the pressure curves ?
by Matsuoko 3/28/2011 8:46:19 PM

@dean, then they must be able to reconstruct the time line of events for all kinds of parameters during the first hours after the quake hit, right? Until the lights went out, of course.
by Peter Melzer 3/28/2011 8:46:56 PM

@Tenzing If we disregard the two mistakes they have made with a couple of readings and that have been corrected within a couple of days, what false information are you talking about?
by Pedro Jesus 3/28/2011 8:47:10 PM

@Matsuoko, you can see them here: www.ustream.tv
by Peter Melzer 3/28/2011 8:48:32 PM

about l i can say off the cuff is the activity ration of fresh plutonium found is greater that that which has been around since testing and atmosphere brought particles of Pu in same areas..
by dean 3/28/2011 8:49:53 PM

@Pedro Jesus: seemingly false as in uncertain if the information is accurate do to lack of disclosure and forthcomingness, information that is made ready when wanted or needed.
by Tenzing 3/28/2011 8:51:22 PM

@dean, thanks. I am not an engineer, but sometimes I just sense significance, don't ask me how.
by Peter Melzer 3/28/2011 8:52:48 PM

@Peter Melzer : so the pressure in #1 dropped before the tsunami ?
by Matsuoko 3/28/2011 8:52:59 PM

I belive the green in the videos is of the spent fuel canal crane..
by dean 3/28/2011 8:53:37 PM

Here is a timeline of events at Fukushima... en.wikipedia.org It is current through yesterday at this time, but I assume it will be kept up to date...
by MaryMary 3/28/2011 8:54:04 PM

@Dean: I have to ask this ;) have you ever been to the Idaho National Laboratory? They have tours don't they?
by Tenzing 3/28/2011 8:54:23 PM

there is a bridge crane over the spent fuel pool that is green and I believe that's it.. unless some one disagrees or has other thoughts
by dean 3/28/2011 8:54:26 PM

According to Tokyo Electric, 32 of the 514 fuel rod assemblies in the storage pond at reactor No. 3 contain mox.
www.nytimes.com
by NHK Listener 3/28/2011 8:54:36 PM

The reactor pressure, temperature and water level curves are pinned at the very top of this page, the link says Plots of reactor data - Fukushima Daiichi - Units #1--#3 www.ic.unicamp.br -- and yes indeed they are very interesting.
by Sky 3/28/2011 8:54:40 PM

@dean regardibng TEPCO Pu sampling, I'm looking at www.atsdr.cdc.gov (Toxicological Profile For Plutonium, U.S. Department Of Health And Human Services, November 2010) around page 176 and don't see much science regarding Pu238 / 239 & 240 ratios and emmissions events. Just thought you might know off the top of your head...
by DennisV 3/28/2011 8:54:56 PM

GOOD FIND NHK.. so now.. how many in the core of the reactor also
by dean 3/28/2011 8:55:11 PM

@Tenzing Or when it is scientifically confirmed in order to avoid further mistakes from their part.
by Pedro Jesus 3/28/2011 8:56:31 PM

@dean Contrary to normal practice in the US, it is common in the Japanese nuclear industry to remove and replace the total fuel assembly as one unit. It has been a major concern of many US industry commentators for decades.
by Gordon 3/28/2011 8:57:09 PM

I think the light is a reflection of something burning, a yellow light at night looks green
by oli333 3/28/2011 8:57:21 PM

Hey, good idea the flag avatars George, just spotted the link about it at the top of the page. Can see at a glance where people on the board are from. Just testing mine :) Tons of flags on the link you gave. Come on all you 'silhouette' people, may as well wear your flag instead - only takes a few seconds.
by Paul (UK) 3/28/2011 8:57:28 PM