Emergency mail from Tepco to Mass media about reactor 4


  • Emergency mail from Tepco to Mass media about reactor 4

    This mail is sent to people who registered to the service to receive messages late in the night / early in the morning.

    ・本日(1月1日)午後5時30分頃、免震重要棟でプラントデータの確認を行って いた当社社員が4号機使用済燃料プールのスキマサージタンク(※)の水位が比 較的早い速度で低下していることを確認しました。 17:30 1/1/2012

    Tepco employee found the water level was decreasing faster than usual in the tank to keep the overflowed water from spent fuel pool of reactor 4.

    ・スキマサージタンクの水位については、自然蒸発などにより低下しますが、これ までの運転実績において、3時間で50mm程度(1時間あたり約17mm)の低下 であったものが、本日午後2時~午後5時までの3時間で約240mm程度(1時間 あたり約80mm程度)の低下が確認されました。

    The water level is decreased naturally because of water evaporation, as it used to take 3 hours to be decreased by 50 mm (17mm/h), but from 2PM to 5PM today it was decreased by 240 mm within 3 hours.(80 mm/h).

    webmasters comment:

    They recently stopped cooling no.3 since there was "no need" and the temperature was suppose to be low... Now they experience a sudden drop in water levels in no. 4 and they are wondering what the hell is going on.

    I also doubt that water with 23°C evaporates  1.7cm per hour naturally. 

    Source: fukushima-diary.com