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Tepco “Steaming area of reactor3 is 18~25℃ by thermography on 7/20/2013”

According to Tepco, the atmospheric temperature of of the top floor of reactor3 was 18 ~ 25 ℃ by infrared thermography. They observed something like “steam” in that area. The

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今日のおもしろにぅす ー1号機はなかば窒素注入による空冷式で温度が保たれてる状態にあることが分かってしまった

This is not so new for English readers. It’s to help Japanese readers understand the situation well.     http://fukushima-diary.com/2012/04/reactor-1-goes-over-100%E2%84%83-within-8-hours-without-nitrogen-injection/ http://www.tepco.co.jp/nu/fukushima-np/roadmap/images/m121203_03-j.pdf http://www.tepco.co.jp/nu/fukushima-np/handouts/2013/images/handouts_130617_02-j.pdf http://www.tepco.co.jp/nu/fukushima-np/handouts/2013/images/handouts_130628_03-j.pdf     Iori Mochizuki   “I’ll be

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Tepco to finally investigate why reactor1 temperature goes up when they stop nitrogen gas injection

Tepco is finally going to investigate the connection between the nitrogen gas injection and the PCV temperature of reactor1. Since April of 2012, Fukushima Diary has been reporting that the

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Reactor1 temperature rised after nitrogen gas injection

Since 5/14/2013, Fukushima Diary has been reporting the unusual increase of temperature in reactor1. (cf, Reactor1 reaching 49℃, increased by 3℃ within 24 hours [URL]) On 5/17/2013, Tepco reported the

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Reactor1 reaching 49℃, increased by 3℃ within 24 hours

On 5/14/2013, Fukushima Diary reported ”3 thermometers indicating the rapid increase of temperature in reactor1 [URL]” One of the thermometers indicated the temperature of PCV reached 49℃ at 11:00 of

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A thermometer in reactor1 indicating temperature unusually increasing “2℃ in 4 days”

According to Tepco, one of the thermometers in reactor1 is indicating an unusual trend of the temperature. (HVH-12C SUPPLY AIR(TE-1625H)) It’s in PCV of reactor1. This thermometer has been indicating

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Reactor2 temperature is increasing again

According to Tepco, one of the thermometers of RPV in reactor2 is indicating the increase of temperature again. Tepco hasn’t announced it’s disordered yet.     http://www.tepco.co.jp/en/nu/fukushima-np/f1/pla/2013/images/data_2u_g-e.pdf http://www.tepco.co.jp/en/nu/fukushima-np/f1/pla/2012/images/figure-e.pdf    

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Tepco failed in installing thermometers into reactor2, “4 fiberscopes all stuck in the pipe”

In order to evaluate the feasibility of investigating inside of reactor2 and also to install new thermometer, Tepco attempted inserting fiberscopes to inspect the soundness of TIP guide pipe but

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Reactor2 temperature jumped up by 120℃ within 12 hours

The temperature of reactor2 is almost reaching 265℃. The thermometer attached on the upper part of RPV2 recorded the rapid increase of temperature from 143.4℃ to 262.3℃, when was from

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Issued thermometers in reactor2 indicate 208℃ and 134℃

There are 2 thermometers indicating the rapid increase of temperature in reactor2. After Tepco labelled them as “Broken” they indicated the drop of temperature but they started indicating the increase