Tag "torus"

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Contaminated water crisis

[Video] Inside Reactor1 torus room, leakage point not identified

              Tepco investigated Reactor1’s torus room on 6/11/2014. Torus room is where to contain the donut-shaped coolant facility of the reactor. This May, Tepco

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

Tepco to restart nitrogen gas injection into reactor1 again

From 2/26/2013, Tepco is going to restart injecting nitrogen gas into S/C of reactor1. (5m3/h) S/C is a part of PCV. If the hydrogen gas density goes over 2%, there

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Photos, videos and other details about reactor1 torus room investigation

On 2/20/2013, Tepco investigated inside of the torus room of reactor1. (cf, 920 mSv/h from the basement floor of reactor1, “Is fractured fuel debris in S/C ?” [URL]) They released

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920 mSv/h from the basement floor of reactor1, “Is fractured fuel debris in S/C ?”

On 2/20/2013, Tepco investigated inside of torus room of reactor1. [URL 1] Torus room is where the facility called S/C (suppression chamber) is located. S/C is a part of the

Core removing struggle

[Column] Amateur doctor

Tepco tried to open a hole to look inside of the torus room of reactor2. Torus room is where S/C is located. S/C is the coolant facility of nuclear reactor

Core removing struggle

[Unanticipated] Tepco failed in investigating the torus room of reactor2 “Different from the map”

From 1/27 to 1/28/2013, Tepco opened a hole (Diameter 300) on the top of the torus room of reactor2. The purpose was to investigate inside of the torus room with

Core removing struggle

[Reactor3] Visual data sent from dead survey robot

Following up this article..Survey robot died in reactor3 Tepco released detailed data collected by the dead survey robot in reactor3.             ↓ Southeast side manhole  

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Survey robot died in reactor3

Related to this article..Robot destroyed within 2 hours in reactor 2  Survey runner robot stopped on the radiation measurement of torus room in reactor3. From 11:00 to 15:00 of 7/11/2012,

Spent Fuel Pools

[Reactor4]Fukushima worker “Shroud was being replaced when 311 happened, pipes are cut off.”

Actual Fukushima worker Happy11311 commented on Twitter that reactor4 was not only in the maintenance when 311 happened, but it was also being remodeled to replace the shroud. The pipes