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These cracks and holes are further exacerbated by the intense heat inside the reactor, which is still over 200 degrees Celsius. The sarcophagus’s hastily and poorly built concrete walls, which are steadily sinking, act as a lid on the grave of the shattered reactor.
Twenty thousand tons of concrete floor is about to collapse into what has been described as a mix of radioactive lava and dust, which resulted from the dropping of tons of sand in the early attempts to put out the fire, formed by the fusion of molten fuel, concrete and dust.
The steel arch enclosure—almost three football fields across and 32 stories high—will be the largest movable structure ever built.
Originally posted by MoonandStar
Even the low tech russians were dealing with the situation better than the japs right now.
The exclusion zone around Chernobyl is 30 km. Why do you expect that the exclusion zone for this will be bigger?
Originally posted by curioustype
reply to post by Vitchilo
Yes, I've been hoping that one outcome of this will be to galvanise us into accelerating through some kind of completion of the new Chernobyl sarcophagus?
Couldn't the world skip an olympics and get it's act together to build a really top of the range one?
The Chernobyl Shelter Fund The Chernobyl Shelter Fund was established in 1997 at the Denver 23rd G8 summit to finance the Shelter Implementation Plan (SIP). The plan calls for transforming the site into an ecologically safe condition by means of stabilization of the sarcophagus followed by construction of a New Safe Confinement (NSC). While the original cost estimate for the SIP was US$768 million, the 2006 estimate was $1.2 billion. The SIP is being managed by a consortium of Bechtel, Battelle, and Electricité de France, and conceptual design for the NSC consists of a movable arch, constructed away from the shelter to avoid high radiation, to be slid over the sarcophagus. The NSC is expected to be completed in 2013, and will be the largest movable structure ever built. Dimensions: * Span: 270 m (886 ft) * Height: 100 m (330 ft) * Length: 150 m (492 ft)
2319: The level of radiation detected at the Fukushima Daiichi plant has fallen steadily over the past 12 hours, an official at Japan's Nuclear and Industrial Safety Agency has said, according to the Reuters news agency. A level of 752 microsieverts per hour was recorded at the plant's main gate at 1700 on Wednesday (0800 GMT), said Tetsuo Ohmura. The monitoring point was then changed to the plant's west gate and readings were taken every 30 minutes, he said. At 0500 on Thursday (2000 GMT on Wednesday), the reading was 338 microsieverts per hour. That level is still much higher than it should be, but is not dangerous, Mr Ohmura added.
Originally posted by letscit
what would liquid nitrogen do to this equation. sorry if this a dumb question, but that seems a sure way to cool these things down. but not sure what chemical reactions would be.