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Tokyo Electric Power Co. said Sunday the temperature at the bottom of the No. 2 reactor at its crippled Fukushima No. 1 nuclear plant rose further to 82 C, but the reactor has not gone critical.
Confirmation that the temperature has risen above 80C could force the government to reverse its declaration two months ago that the crippled plant was in a safe state known as cold shutdown.
Cold shutdown is achieved when the temperature inside the reactors remains below 100C and there is a significant reduction in radiation leaks. Given that Tepco assumes a margin of error of 20C, the actual temperature could have risen to 102C.
Tepco said it did not know the cause of the apparent temperature rise, but speculated that it might be due to problems with the supply of coolant or a faulty thermometer.
Tokyo Electric Power Co. injected boric acid into a reactor at its crippled Fukushima nuclear plant to prevent an accidental chain reaction known as re- criticality after temperatures rose in the past week.
Originally posted by omegacorps
IMO they are trying to take away from # 4.
why fix something and then it dose not work
seam like the good " taste " has gone south
Originally posted by Thermo Klein
reply to post by UFO1414
the linked video is in Japanese and seems to be more set an advertisments and music video...
Is there any substance to this or the actual news conference they allude to?
Originally posted by skitzspiricy
How is this still happening?
Have any of the reactors actually been entombed yet?
When Chernobyl happened they were on it immediately.
It's been almost a year now and this mess is still going on.
edit on 12-2-2012 by skitzspiricy because: (no reason given)
As a reason for what is causing the temperature rise, Tepco said it is possible the water flow is unstable and thus failing to cool the reactor stably, while also saying it will check the thermometer for any irregularities. The temperature was measured at 78.3 C at 10 a.m. and fell to 75.4 C at 11 a.m. The decline occurred after Tepco on Saturday night increased the amount of water being injected into the reactor to 14.6 tons per hour from 13.6 tons, after seeing the temperature rise to 73.3 C at 9 p.m. It reached 74.9 C at 11 p.m. Saturday. The temperature readings began rising on Feb. 1. One of the three thermometers at the bottom of the reactor's pressure vessel stayed between 67 C and 71 C from Friday evening to Saturday evening after hitting 73.3 C on Monday. Readings from two other thermometers that check the temperature at the bottom of the No. 2 reactor vessel were around 35 C, Tepco said.