tag:blogger.com,1999:blog-10911751.post5859308807651862274..comments2024-03-07T02:00:01.582-05:00Comments on NEI Nuclear Notes: The Japan Quake and the Kashiwazaki-Kariwa Nuclear PlantUnknownnoreply@blogger.comBlogger10125tag:blogger.com,1999:blog-10911751.post-66675354770849293942007-07-19T04:09:00.000-04:002007-07-19T04:09:00.000-04:00The water that leaked ultimately came from a spent...The water that leaked ultimately came from a spent fuel pool.<BR/><BR/>The <B>2 microcuries</B> (just to re-iterate) of radioactivity in the water spill from the pool was probably a cocktail of reasonably long-lived fission products in trace amounts from the spent fuel rods.<BR/><BR/>Probably not I-131, because it's so short lived, it isn't significant in stored spent fuel, except where it's straight out of a recently operating reactor.<BR/><BR/>Fission products like Cs-137 might be a pretty representative guess.Lukehttps://www.blogger.com/profile/05092902410659259688noreply@blogger.comtag:blogger.com,1999:blog-10911751.post-61161596326971209032007-07-18T14:44:00.000-04:002007-07-18T14:44:00.000-04:00So what leaked? Heavy water? Cs-137? Sr-90? I-131...So what leaked? Heavy water? Cs-137? Sr-90? I-131? I haven't been able to find that info anywhere.brbhttps://www.blogger.com/profile/06494744009518574150noreply@blogger.comtag:blogger.com,1999:blog-10911751.post-76646966425918685952007-07-18T08:54:00.000-04:002007-07-18T08:54:00.000-04:00Can anyone confirm that these units actually have ...Can anyone confirm that these units actually have seismic isolation as stated above? I've extensively studied these projects and never seen this. I have a 2001 paper from Hitachi (K-6/K-7 designer) stating that they are studying seismic isolation for future units based on K-7. Perhaps the post above confuses snubbers with supports. Snubbers are easily inspected and requalified.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-10911751.post-87601872560461609552007-07-18T08:21:00.000-04:002007-07-18T08:21:00.000-04:00Come off it.How much radioactivity was actually re...Come off it.<BR/><BR/>How much radioactivity was actually released, and what maximum dose could this have resulted in to any member of the public?<BR/><BR/>What are the <B>actual risks</B> that the public has been exposed to as a result of this earthquake affecting the nuclear plant?Lukehttps://www.blogger.com/profile/05092902410659259688noreply@blogger.comtag:blogger.com,1999:blog-10911751.post-47258284226327229912007-07-18T07:22:00.000-04:002007-07-18T07:22:00.000-04:00Long name person, I think you have a problem with ...Long name person, I think you have a problem with your definition of "unsafe".<BR/><BR/><A HREF="http://freedomforfission.blogspot.com/2007/07/define-unsafe.html" REL="nofollow">I've posted a more detailed response on my blog.</A>Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-10911751.post-85111515874157019432007-07-17T22:12:00.000-04:002007-07-17T22:12:00.000-04:00Tokyo Electric Power has already admitted that the...Tokyo Electric Power has already admitted that the reactors were not built to withstand and earthquake of the magnitude experienced. The reactors themselves were built on basically very elaborate shock absorbers...this according to a welder who used to work for Underwater Welding of Essex, Ct. who actually did work on the reactors involved. Without significantly tests and examinantion, the long term viability of these shock absorbers cannot be ascertained, and it is murder to restart these seven reactors until said testing is completed.Royce Penstingerhttps://www.blogger.com/profile/15097783614648808652noreply@blogger.comtag:blogger.com,1999:blog-10911751.post-2052487655078353532007-07-17T17:39:00.000-04:002007-07-17T17:39:00.000-04:00Actually no. The best thing to do right now is to ...Actually no. The best thing to do right now is to see what the total damage is. From the looks of things, it looks like the significant areas of the plants (i.e. the reactors) performed exactly how they were supposed to with no damage done to them.<BR/><BR/>You're forgetting these plants are designed for earthquakes. Give it a week and we'll see where we are at. You can't start jumping to conclusions. Bet you several of the reactors will begin restarting within two weeks.David Bradishhttps://www.blogger.com/profile/02439638522932781068noreply@blogger.comtag:blogger.com,1999:blog-10911751.post-63207463718038262422007-07-17T15:18:00.000-04:002007-07-17T15:18:00.000-04:00First, the quake in Japan was higher in magnitude ...First, the quake in Japan was higher in magnitude than the DB specks by which these reactors were designed and built. There is a very good chance that said quake has made all seven of these reactors unsound from and engineering stand point.<BR/><BR/>Secondly, NEI can try to mitigate reality all they want...this quake has shown nuclear reactors to be unsafe, and with each passing hour, the number of SIGNIFICANT issues at the world's largest reactor site continue to grow.<BR/><BR/>Smart money...dump your nuclear holdings before the bottom falls out of the market. If I had Exelon or Entergy stock right now (too name two) I'd be more than nervous.Royce Penstingerhttps://www.blogger.com/profile/15097783614648808652noreply@blogger.comtag:blogger.com,1999:blog-10911751.post-54846461673185838242007-07-17T12:44:00.000-04:002007-07-17T12:44:00.000-04:00The LA Times and other outlets are reporting some ...The LA Times and other outlets are reporting some other issues... pipes dislodged, low-level waste barrels tipped over, a release into the atmosphere. <BR/><BR/>Are these indicators of design flaws, especially for what seems to be an earthquake-prone area? I will be very interested in seeing after-action or lessons learned reports.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-10911751.post-80602832221860354872007-07-17T11:30:00.000-04:002007-07-17T11:30:00.000-04:00"All U.S. nuclear plants are designed to withstand..."All U.S. nuclear plants are designed to withstand earthquakes of a magnitude that is equivalent to or greater than the largest known earthquake for region where it is being built."<BR/><BR/>I believe that's the case with Japanese NPPs as well, including KK. However, the July 16 quake was larger than the design basis seismic event they'd anticipated.Anonymousnoreply@blogger.com