Tag "dry well"

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Core removing struggle

[Mysterious reactor2] Tepco couldn’t purge hydrogen gas from suppression chamber

Tepco injected nitrogen gas into the suppression chamber of reactor2 from 5/14 to 5/17/2013. (cf, Tepco to start nitrogen gas injection into reactor2 for the first time, “Not knowing the

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Tepco to start nitrogen gas injection into reactor2 for the first time, “Not knowing the hydrogen gas concentration”

Tepco is going to inject nitrogen gas into reactor2 suppression chamber as a test. They need to keep the hydrogen gas concentration lower than 2% or it may cause hydrogen

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880 mSv/h in reactor2

  On 6/13/2012, Tepco conducted robot survey in reactor2. 880 mSv/h was measured above the dry well. Source 2 Iori Mochizuki