Tag "nitrogen gas"

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Core removing struggle

[Steaming reactor3] Tepco “The steam may be from the inside of the reactor, a certain volume of N2 gas is missing”

Following up this article..[Steaming reactor3] Thermography shows the steaming area is over 15℃ hotter than atmosphere [URL] On 7/26/2013, Tepco announced the “steam” may be from the inside of the

Core removing struggle

No temperature change in reactor1 after reducing nitrogen gas into the PCV

Following up this article..Tepco to finally investigate why reactor1 temperature goes up when they stop nitrogen gas injection [URL] According to Tepco, they are reducing the nitrogen gas volume to

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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[Reactor2] Air pressure of Suppression Chamber was lower than Dry Well, “can’t purge hydrogen gas”

On 5/13/2013, Fukushima Diary reported “Tepco to start nitrogen gas injection into reactor2 for the first time, “Not knowing the hydrogen gas concentration” [URL]” Tepco is attempting purging hydrogen gas

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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

Core removing struggle

Tepco announced to inject N2 into S/C of reactor1 but the flow rate of N2 didn’t change and only hydrogen gas increased

According to Tepco, they restarted the injection of nitrogen gas into suppression chamber of reactor1 at 10:37 of 1/8/2013. The purpose was to investigate the process of hydrogen produced by