Tag "PCV"

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Core removing struggle

[Video] Tepco investigated operation floor of reactor3 / Shield plug subsided by 30cm

Note : Thank you for reading Fukushima Diary. Fukushima Diary is genuinely supported by your donation. Monthly recurring donation is also appreciated.     Tepco released the video of the

Core removing struggle

Tepco “More fuel debris possibly melted through to reactor3 primary containment vessel than expected”

Note : If you are from the international mass media, Don’t read this site before taking a contact with me.     It may be more than originally simulated the

Core removing struggle

Zirconium found molten inside of reactor2

Note : If you are from the international mass media, Don’t read this site before taking a contact with me.     Following up this article.. [Elephant foot ?] Tepco

Contaminated water crisis Core removing struggle

Leaking part of reactor1 is made of “poly vinyl chloride”

Note : If you are from the international mass media, Don’t read this site before taking a contact with me.     Following up this article.. [Video] Reactor1 confirmed leaking

Contaminated water crisis Core removing struggle

[Video] Reactor1 confirmed leaking out the coolant water / 2.0 Sv/h

Note : If you are from the international mass media, Don’t read this site before taking a contact with me.     Fukushima Diary has been suggesting the possible direct

Core removing struggle

[Where is the fuel ?] Cs-134/137 density is 6 times higher in torus room than inside of reactor2 vessel

Tepco released the data about the radioactive density in reactor retained water. The report was submitted to the secretariat meeting for Fukushima decommissioning on 8/29/2013. From the data, Cesium-134/137 density

Core removing struggle

PCV pressure of reactor2 suddenly decreased to be half / Reason not verified

According to Tepco, PCV pressure of reactor2 suddenly decreased in the early morning of 8/24/2013. The reason is not identified yet. Around 1:00 AM of 8/24/2013, Tepco found the PCV

Core removing struggle

190,000 Bq/m3 of α nuclide detected from reactor3 PCV gas

Following up this article..Ag-110m detected from gas sample of reactor1 and 3, “The boiling point is 2,164℃” [URL] On 8/12/2013, Tepco released the analyzing result of α nuclide (Plutonium etc..)

Core removing struggle Plant hazard

Tepco eliminated another thermometer of reactor2 / “Because it indicates rapid change of the temperature”

According to Tepco, they eliminated another thermometer of reactor2. It’s to indicate the temperature of the stud on the RPV flange. Now they have only 10 thermometers remain in RPV

Core removing struggle

Reactor3 has steamed for over 1 week

Following up this article..Cesium density in reactor3 “steam” higher than the gas inside of PCV [URL] According to Tepco, the “steam” had been observed on the top of reactor3 until