ScribbleLive

@Ian I have seen them expressed as "BWR (insert a number)" ie: BWR - 4. I think this means it is a 4th incarnation of the Mark 1. Monticello is a Mark 1 BWR (so glad I do not live in Monticello any more) www.nucleartourist.com

@RadioGuy I have also seen the ones like unit 6 referred to as a ABWR but also as a BWR-5 so it must be sort of casual terminology. The torus design on 6 and reactor well placement is different.

I'm not sure but I think the BWR/n classification refers to the reactors, not the secondary-containment structures surrounding them. ?

@Elaine, do you know if they have any Mark1 GE reactors in the UK? That might be a good starting point to get something together to submit.

@Nancy :
www.nukleer.web.tr
en.wikipedia.org

very complete and interactive info about all nuke reactors worldwide: tools.voanews2.com

@Nancy : i 've read the same ;)

@Panserbjorne9 Internal monitoring..Similar to the dosimetry issue, it takes media attention to get the equipment to the area. Aren't some of these workers sleeping or exercising at Daini. They can (and should) set up all they can get ahold of. With the levels of radioactivity these guys are working around, the internal dose can become a large portion of ehole body dose.

New cooling systems to be installed at fuel pools

The operator of the damaged Fukushima nuclear power plant is likely to start operating a new system within 2 weeks to cool spent fuel in reactor Number 2.

Tokyo Electric Power Company says it is preparing to install cooling systems in 4 of the 6 reactor buildings, 3 months earlier than initially planned.

TEPCO says it is laying power cables for a cooling system for Number 2 reactor's spent fuel pool. A heat exchanger will be brought into the facility early next week to start operating the cooling system by the end of this month.

Workers entered the Number 2 reactor building on Wednesday for the first time since a hydrogen explosion on March 15th. They tried to check radiation levels but left the building after 14 minutes because it was filled with steam, making further work impossible. [surprise surprise]

The utility says the vapor appears to be coming from the damaged suppression chamber as well as from the fuel pool itself.

Senior TEPCO official Junichi Matsumoto says he believes cooling the spent fuel pool will help reduce steam inside the reactor.

TEPCO reports more than 90 percent humidity inside the Number 2 reactor building. Matsumoto says the building's roof is intact, making it more prone to filling with steam. Number 1 and 3 reactor buildings are exposed to the air because hydrogen explosions blew off their roofs and walls.

Thursday, May 19, 2011 02:57 +0900 (JST)
www3.nhk.or.jp

@Edano Ew radioactive mold!

<sigh> [from the other board]

UK nuclear industry gets green light from government inspector

The UK does not need to curtail the operation of nuclear power stations after the crisis at the Fukushima plant in Japan, the nuclear chief inspector, Mike Weightman, said today.
In an interim report on the lessons that could be learned from the disaster, which followed a 9-magnitude earthquake and a tsunami that battered the Japanese coast, Weightman said similar natural events would not happen in the UK.
He also said existing and planned nuclear power stations in this country were of a different design from those at Fukushima, which were rocked by explosions and damage to the reactors after the tsunami shut down power to the plants, knocking out their cooling facilities.
Also, flooding risks were unlikely to prevent the construction of new nuclear power stations at potential development sites in the UK, all of which are on the coast, he said.

www.guardian.co.uk

come on, go out on the streets, britannia !

@Rob in SF Looks like one of the 2 previously announced fresh water barges. Maybe headed to Daini for a refill.

@RBeaner That makes sense.

@elainekirk a quick search didn't come up with any good leads. It looks like the authors work at Hiroshima University. Where Bo works is associated with the Uni in Hiroshima. He might be able to give you an idea how to get a copy.

@Elaine, this nonsense of documents in native language only is a joke. At some point I think they have to provide this data to the IAEA. Maybe we need to start requiring all NPPs to make all press releases, public documents and official filings in the countries native language and another in the standard language(s) used by the IAEA.

@RBeaner : i think, both.

@Edano SL1 Human Error - lifted control rod too high
TMI Human Error - did not respond properly to stuck valve
Chernobyl Human Error - defeated safety devices and disregarded indications
Fukushima Human Error - Design deficiences (gens in basement) and possible incorrect response

Answer is Nuclear disaster can occur anywhere, and will with frightening regularity

@RBeaner ID 10 T errors.

@Edano nuclear has a role but what that role is and what areas needs to be rethought. As far as consumer power generation the numbers don't work out when you take all factors into consideration. If there was something else in people's back yards with the potential to do the kind of devastation that was done at FUku people would lose their minds. It would be more efficient to go after ways to reduce consumption and better technologies to make that happen. We we run into in the US is vested interests in people consuming huge amounts of electricity and gas so those simple changes are met with lots of money and obstacles