Tag "reactor5"

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Contaminated water crisis

27.5 m3 of contaminated water overflowed from tank of reactor5&6, “Forgot to switch the tanks”

According to Tepco, they had 27.5 m3 of contaminated water overflowed from the tank of reactor5 and 6. Tepco states Cs-137 and total β were lower than the detectable levels,

Cover-ups Plant hazard

[Concern about the soundness of ground] Fukushima worker “1m deep ground fissure came to us near reactor5,6 on 311”

An anonymous Fukushima worker had an interview with a magazine Gendai business and talked about the plant situation just after 311. The interview was published on 4/1/2011, but Fukushima Diary

Uncategorized

The chief of Fukushima nuclear plant to change only 18 months after the last change

According to Tepco, the chief of Fukushima nuclear plant will be changed on 6/26/2013. The current Fukushima Chief, Takahashi is the second chief. He became the chief in December of

Uncategorized

Tepco not to decommission reactor5, 6 and Daini

  In the power supply plan that Tepco submitted to METI (Ministry of Economy, Trade and Industry) on 3/28/2013, Tepco didn’t state reactor5, 6 and reactor1 ~4 of Daini will

Cover-ups

IAEA, “Reactor5, 6 and Fukushima Daini are operational” though reactor5&6 still need coolant system

According to IAEA, reactor5 and 6 in Fukushima Daiichi, and the 4 reactors in Fukushima Daini are operational. From the research of Fukushima Diary, the temperature of reactor5 still goes

Sea contamination

Strontium-90 detected from near the water discharge channel of reactor1~6

According to Tepco’s “Nuclides Analysis Result of Radioactive Materials in the Seawater” published on 1/23/2013, Strontium-90 was detected from 30m of the discharge channel of reactor5 and 6 and 330m

Core removing struggle

Reactor5 gets heated as water injection stops

According to Tepco’s plant parameter, water temperature of reactor5 goes up when the reactor water level decreases. Tepco has been having problems with the water injection pumps, which pieces of

Core removing struggle

Temperature of Reactor 5 jumped up by 3.4 ℃ within 24 hours

According to Tepco’s plant parameter published on 12/28/2012, the water temperature of RPV in reactor5 jumped from 33.1℃ to 36.5℃ within one day. It was 33.1℃ at 11:00 12/27/2012, but

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Heat removal seawater flow rate decreased in reactor5 too

Reactor injecting water amounts are observed decreasing in reactor1 ~ 3. [Link] On 10/1/2012, Tepco announced the flow rate of residual removal seawater decreased in reactor5 as well.   1号機から3号機の原子炉への注水量が低下している事が確認されました。

Sea contamination

Tritium leakage from reactor 5 and 6

On 9/21/2012, Tepco released the nuclear analysis result of radioactive materials in the sea water. The samples were taken on 4/16 and 5/14, so their release is 5 ~ 4