Just came across a couple of articles. Don’t know if anyone has posted them yet.
Anyways, 1st off, Tepco says it has 220,761 metric tons of radioactive water stored. (The containment vessels are cracked and they constantly have to pump in water to run over the exposed fuel. The water is then stored in tanks which are currently 95% full.
So…what’s their solution? To ‘filter’ out the cesium and then release the [...]
April 18, 2012
TEPCO plans to use a robot today to photograph possible damage inside the suppression pool at the bottom of Fukushima’s damaged number 2 reactor.
TEPCO is the operator of the tsunami damaged Fukushima Daiichi nuclear plant in Japan.
“We want to check whether there is no deformation or damage in the suppression pool. And, with any luck, we hope to see areas where water (injected into the reactor as [...]
Cold Shutdown … or Escape of Hot Fuel?
January 20, 2012
I noted last month in connection with Tepco’s announcement of “cold shutdown” of the Fukushima reactors:
If the reactors are “cold”, it may be because most of the hot radioactive fuel has leaked out.
The New York Times pointed out last month:
A former nuclear engineer with three decades of experience at a major engineering firm … who has worked at all three nuclear power complexes operated [...]
Preparations going on for reactor endoscopy
Preparations are under way to use an endoscope to examine the inside of a containment vessel of the damaged No. 2 reactor at the Fukushima Daiichi nuclear power plant.
At the No.1, 2, and 3 reactors of the plant, the nuclear fuel has melted down, but the exact state of the fuel and details of the inside of the containment vessels are yet to be confirmed. [...]
The operator of the troubled Fukushima Daiichi nuclear plant says data analyses suggest damage to its reactors may have caused cracks and openings in the reactor containment vessels equivalent to a 10-centimeter hole.
Reactors 1 through 3 at the plant suffered nuclear fuel meltdowns after the March 11th earthquake and tsunami. This is likely to have created holes and cracks at the bottom of the pressure [...]
The Yomiuri Shimbun
An emergency cooling system of the No. 1 reactor at the Fukushima No. 1 nuclear power plant malfunctioned after the March 11 earthquake and before the tsunami hit, data released by plant operator Tokyo Electric Power Co. have revealed.
According to a large cache of data concerning plant operations from March 11 to 14 released Monday by TEPCO, the No. 1 reactor’s isolation condenser, [...]
TOKYO — In a development that is likely to delay efforts to bring the Fukushima Daiichi Nuclear Power Station under control, the plant’s operator said Thursday that one reactor, No. 1, had sustained much more damage than originally thought and was leaking water.
The company released a plan last month to bring the plant into a relatively stable state in six to nine months, but that was [...]
Everyday I keep saying, it can’t get worse. Everyday, I realize it will:
The government and Tokyo Electric Power Co. are considering injecting nitrogen into containment vessels of the Fukushima Daiichi nuclear power plant’s reactors to prevent hydrogen explosions, government sources said Friday.
Physicians have “deep concern” about Canada being impacted by radioactive isotopes from Fukushima
… “Physicians for Global Survival is deeply concerned about [...]
Like this report:
#3 Pressure / Temperature of the Reactor Pressure Vessel — UNKNOWN
#3 Containment Vessel Pressure — Decreasing after increase in Mar., 20th
#3 Reactor pressure (24th 18:00) (A) 0.038MPaG, (B) -0.101MPaG
#3 CV pressure (24th 18:00) 0.107MPaabs
Note: .107 MPascals absolute = approx 14. 7 PSI which is atmospheric press.
“Workers were also trying to fix a pump using an outside power source that had been pumping seawater into the No. 5 reactor, but which stopped Wednesday night.
Figures obtained from instruments indicate that between half to one-third of the approximately 4-meter long fuel rods are exposed, but TEPCO officials do not know what the actual situation is like.”
Still no idea what is actually going on [...]
This from the Telegraph: “Japan earthquake: residents flee as quake fears spread”, @ http://www.telegraph.co.uk/news/worldnews/asia/japan/8383978/Japan-earthquake-residents-flee-as-quake-fears-spread.html . The bold below is mine:
The railway station at Nasushiobara, the last one still operating near Japan’s nuclear crisis area, was jammed with frightened people. In this ghost town of closed shops and offices, pedestrian-free pavements, and empty petrol pumps, the station was the only place still alive, and the only [...]
In this image made from Japan’s NHK television, an aerial view shows the Fukushima Daiichi power plant’s Unit 1, only frames are seen at left, in Okumamachi, Fukushima prefecture, Japan, Saturday, March 12, 2011. The walls of the building at the nuclear power station crumbled Saturday as smoke poured out and Japanese officials said they feared the reactor could melt down following the failure [...]