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Description/Abstract To develop the understanding and predictive measures of the post “loss of water inventory” hazardous conditions as a result of the natural and/or terrorist acts to the spent fuel pool of a nuclear plant. This includes the thermal cooling limits to the spent fuel assembly (before the onset of the zircaloy ignition and combustion), and the ignition, combustion, and the subsequent propagation of zircaloy fire from one fuel assembly to others
A comprehensive modelling to predict the stratication of oxides and metals in a corium pool
is presented. It consists of a series of models that take into account both thermochemical and
thermalhydraulic aspects. The model is designed to be used on a 2D/3D meshing. Therefore,
the corium pool is assumed to be non-homogeneous in temperature and composition. Only
local thermochemical equilibrium is assumed (in each mesh).
A simplied thermochemical model provides the equilibrium compositions of the oxide and
metal phases. It is consistent with MASCA experimental results. It is also consistent with
computational results obtained by using IRSN thermochemical database. All the local phys-
ical properties, and particularly the densities, are calculated from the local compositions and
Ab s t r a c t – The PLINIUS prototypic corium platform is a research tool dedicated to the study of core-melting accidents in nuclear reactors. Composed of the VITI, COLIMA, KROTOS and VULCANO facilities, it covers a large range of corium masses which enable to choose the correct scale depending on the experiment objectives from a few grams to 50-80 kilograms. A material analysis laboratory complements these experiments using high-temperature melts containing depleted –uranium. A recent Molten Core Concrete Interaction test with more than 40 kg of corium illustrates the platform activities.
Originally posted by rbrtj
reply to post by SFA437
Yes the wind is definately going to be the game changer if nothing else blows up.
Can we dump a huge amount of Borax/ Boron on that thing?
Under the plan, which is being considered by Tokyo Electric and the government, other power utilities will be asked to contribute to a mutual aid fund that would also form part of the compensation scheme.
That fund could contribute up to 2.7 trillion yen, and power utilitilies including Tokyo Electric would contribute in proportion to the number of nuclear reactors they own, the Yomiuri said.
That leads to Areva clearly being wrong on the state of containment and amount of waste pool material left in that reactor #3 building ( which adds to the amount of aerosol production and discharge ) Areva also states that #3 was "mostly noble gases" being released so " no fall-out" for soil contamination outside the plant... apparently the company believes the waste pool At#4 completely aerosolized , where the massive explosion at #3 somehow managed to produce little to no aerosol , kind of convenient for the makers of mox that , even though the building is melting and had a dust shower 600M in the air none of that stuff is anything other than "noble gases" , I guess the uranium and plutonium MOX content just stayed home with the little piggy, ha..they sure as hell forgot in their little corporate cheat sheet to mention plutonium uptake and transport at the least. Then again it's probably why Seimens pullled (brutually ) out of Areva/MOX to the tune of 1.62 billion Euos
Shoppers in the capital Tokyo lined up on the first day of the two-day market to buy fresh strawberries, asparagus, tomatoes and leeks from Iwaki - an area about 50 kilometres (30 miles) from the Fukushima Daiichi plant, which was devastated by the disaster.
The government's chief spokesman Yukio Edano, who has sought to calm fears over radiation contamination, exclaimed "this is so sweet" as he ate a strawberry before the gathered media at the event.
"Only safe produce is being distributed. Please eat it," he added, saying the government planned to organise other events to promote produce from the disaster zone.
Originally posted by sepermeru
reply to post by MedievalGhost
Also, that second guy is looking at that first guy like he's thinking can you believe this fool I'm stuck with? This is certainly nothing to do with radiation, I just thought it was amusing.edit on 12-4-2011 by sepermeru because: Nobody's perfict
Originally posted by Jrosh
reply to post by Fractured.Facade
I assume you are talking about this image:
That is from a cleanup operation where they are using remote control equipment to gather up debris around the damaged Fukushima reactors, the debris came from the hydrogen explosions that blew apart some of the reactor structures, if you look close you'll see where they are placing the debris in containers and removing it for disposal... Apparently it is extremely radioactive.
There are no "live feeds" yet of this operation (like the BP disaster) and given Tepco's control over news and information, don't expect there to be any live feeds of this... Though if they care at all about public opinion, they should do this and be as open as possible.