2011年7月7日木曜日

Arnie Gundersen Update 01/07/11: New Analysis of Unit 3 Fuel Pool Video Reveals Top of Fuel Bundle


さんが 2011/07/05 にアップロード
A video first released by TEPCO in April has been re-analyzed by Ian Goddard and appears to reveal a handle found atop a single nuclear fuel bundle. This raises more questions about the condition of any fuel still remaining in the Unit 3 fuel pool.

Hi I'm Arnie Gundersen from Fairewinds.

If you have been watching the site lately, it has been about 3 weeks since we have updated a video. During that time, Maggie and I have been on the road making a couple of presentations in Massachusetts, a couple of TV shows and some radio and print. That will be on the site over the next couple of weeks to inform you of what we have been up to. But something happened last night that I really wanted to share with you right now.

I got an email last night from Ian Goddard. And Ian is a long time watcher of this site and has done some really great analysis in the past as well. He took a look at an old TEPCO video. And Tokyo Electric had gone into the Unit 3 fuel pool just once. You remember that Unit 3 is the reactor that is blown to smithereens. The video showed a lot of damage. But Ian Goddard was able to find one spot where there is clearly something that appears to be discernible. It looks like the handle of a BWR fuel bundle.

Ian compares that bundle to other bundles which were looked at over in Unit 4 and it is pretty clear to me and a couple of other nuclear engineers I have shown it to, that this might be a single nuclear fuel bundle in the Unit 3 fuel pool.

It raises more questions than it answers. First of all, there should be a lot of bundles there. Yet, obviously, there is only one in this picture. Where are the other bundles? The other part of the question is, this should be under about 25 feet of water. It is not, it is very near to the surface. So what has happened to that particular bundle, or to the water level in the pool that caused it to come in such close contact with atmosphere?

Like I said, it raises more questions than it answers, but I really do want to thank Ian Goddard for discovering this. If you have any comments or questions or thoughts on what you think it might be, please send in through the comments section on the website.

Thanks, we will get back to you soon.
http://fairewinds.com/


http://www.youtube.com/user/GoddardsJournal

さんが 2011/06/30 にアップロード
This object in the fuel pool of Unit 3 appears to be the 'handle' of a fuel assembly.

It would be an Upper Tie Plate by this fuel-assembly schematic: http://www.nucleartourist.com/images/bwrfuel1.jpg

Fuel assemblies are usually (but not to my knowledge necessarily always) packed very densely in racks, as seen in the Spent Fuel Pool of Unit 4: http://www.youtube.com/watch?v=qCY0xQRZ1UY


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