WNN has just reported on the loss of coolant at Fukushima Daiichi Unit 2. It reports that serious damage to the reactor core of Fukushima Daiichi 2 seems likely after all coolant was lost for a period. TEPCO announced earlier today that Unit 2's reactor core isolation cooling system had failed after an increase in pressure in the containment vessel. TEPCO prepared to pump seawater into the reactor system, but this was only started "after the water level reached the top of the fuel." The water level continued to drop and TEPCO then began preparations to open a valve to vent the containment vessel. At 8.50pm (07:50:00 am Monday March 14 Eastern Time) TEPCO told NISA that is presumed some of the fuel rods were broken, based on radiation detected in the environment.
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