Tag "RPV"

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Core removing struggle Plant hazard

Alternative thermometer was installed in RPV of reactor2

Only one point remained available to measure the temperature in RPV2. [Link] On 10/3/2012, Tepco installed alternative thermometer in RPV2.         Source     Iori Mochizuki _____

Contaminated water crisis Core removing struggle

Coolant water is leaking to the next turbine building of reactor1

In the roadmap that Tepco released on 9/24/2012, Tepco reported coolant water injected into PCV and RPV is leaking from the North-East side of the reactor building through the access

Core removing struggle

Tepco developing remote controlling robots, wall crawler, airship, RPV diver, etc..

On 9/24/2012, R&D department of Tepco released the latest report about remote technique to invest Fukushima plant. Tepco can’t investigate the crippled Fukushima plant with the existing technology. They are

Core removing struggle Plant hazard

Installation of new thermometer to reactor2 still takes time

Currently, only 1 measuring point remains available to measure temperature in RPV of reactor2. [Link] On 9/14/2012, Tepco released the work implementation plan to install new thermometer to RPV of

Core removing struggle

Tepco removed the RPV lid of reactor4

Following up this article..[Reactor4] Exposure dose to remove the lid of PCV4 was 7.8 timers higher than new fuel from SFP4 Tepco removed the RPV lid of reactor4 as well.

Core removing struggle Plant hazard

Only 1 measuring point remains available to measure temperature in RPV of reactor2

Having the last one broken, we will not know the temperature inside of RPV2. On 9/4/2012, Tepco reported the unusually high rate of temperature increase in reactor2. [Link] They determined

Core removing struggle Plant hazard

High rate of temperature increase in RPV2

  A high rate of temperature increase was observed in RPV of reactor2. It was detected on 9/4/2012 but Tepco reported it on 9/7/2012. Tepco is deciding whether the thermometer

Core removing struggle Plant hazard

[Reactor2] Tepco is having a difficulty to install a new RPV thermometer

Every time Tepco measured extreme change of PCV temperature, they concluded that the thermometer was out of order historically. They have few sound thermometers left at this moment, they are