Top > Releases ･ Announcements > Fukushima Daiichi NPS Prompt Report > 2013 > The temperature of the Unit 3 spent fuel pool at Fukushima Daiichi Nuclear Power Station (Follow-up report )
This is follow-up information regarding the suspension of the Unit 3 spent fuel pool alternative cooling system which occurred on April 5. The facility has restarted operation at 5:20PM on the day and the water temperature as of 6:10PM was 15.2℃ (previously announced). (The temperature as of 2:00PM, when the system stopped, was 15.1℃.)
The temperature data after the incident are as follows.
11:00PM, April 5 15.5℃（Announced on April 6）
5:00AM, April 6 15.5℃ （Announced on April 6）
11:00AM, April 6 15.5℃
5:00PM, April 6 15.7℃
11:00PM, April 6 16.1℃
5:00AM April 7 16.3℃
*The slight increase of the temperature since 5:00PM, April 6 is due to the outside air temperature increase. We are assuming the cooling is steadily conducted.
(Reference) From the Japan Meteorological Agency homepage
Temperature of Hirono, Fukushima Prefecture
April 5 Highest: 13.4℃, Lowest: 7.5℃
April 6 Highest: 18.2℃, Lowest: 8.2℃
© Tokyo Electric Power Company Holdings, Inc.
