08-02-2012, 09:43 PM
Rising temperatures at Fukushima raise questions over stability of nuclear plant
February 8, 2012 by legitgov
Quote:Rising temperatures at Fukushima raise questions over stability of nuclear plant --The amount of cooling water being injected into No 2 reactor is increased after temperature soars to over 73C 07 Feb 2012 Workers at the Fukushima Daiichi nuclear power plant say they are regaining control of a reactor after its temperature rose dramatically this week, casting doubt on government claims that the facility has been stabilised. The plant's operator, Tokyo Electric Power [Tepco] was forced to increase the amount of cooling water being injected into the No 2 reactor after its temperature soared to 73.3C earlier this week. By Tuesday night, the temperature had dropped to 68.5C at the bottom of the reactor's containment vessel, where molten fuel is believed to have accumulated after three of Fukushima Daiichi's six reactors suffered meltdown.
Tepco Injects Boric Acid Into Reactor as Temperatures Rise
February 8, 2012 by legitgov
Quote:Tepco Injects Boric Acid Into Reactor as Temperatures Rise 07 Feb 2012 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. The temperature of the No. 2 reactor was 70.1 degrees Celsius (158 degrees Fahrenheit) as of 6 a.m. today, according to preliminary data, Akitsuka Kobayashi, a spokesman for the utility, said by phone. Since Feb. 1, temperatures at the bottom of the No. 2 reactor vessel have risen by more than 20 degrees Celsius, according to the company's data.