JAIF has reported the Status of Unit-2 of Fukushima #1 Nuclear Power Station – 21:00, March 14, 2011 (08:00:00 a.m. Monday March 14 Eastern Time)
16:25 Local Time
All core coolability has been lost at Unit-2 of Fukushima #1 power station.
NISA explain the process as follows
Before 13:25: The reactor core has been cooled with Reactor Core Isolation
Cooling System or RCIC for short.
At 13:25 : RCIC was stopped after the containment vessel pressure increase.
Pressure of the reactor pressure vessel has reached at 7MPa and is
increasing. TEPCO is now preparing for decreasing pressure inside the
reactor pressure vessel by opening pressure relief valve to the containment
vessel and the valve for venting the containment vessel.
Also TEPCO considers seawater injection to the reactor through RCIC
20:40 Local Time
TEPCO announced the status of Unit-2 of Fukushima #1 power station as
follows.
Seawater injection started after water level reached the top of fuel rods.
TEPCO confirmed that seawater reached inside the reactor based on related
data. However, water level continues to decease. Given this situation,
TEPCO prepare for venting the containment vessel.
20:50 Local Time
TEPCO announced that it is presumed that some fuel rods are broken based
on radiation detected in the environment.
There are some news reports that said inside the reactor vessel was
completely dried out temporarily.
End
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