summary of reactor unit status at 18 march - graham andrew
TRANSCRIPT
IAEAInternational Atomic Energy Agency
Presentation by
Graham AndrewSpecial Assistant to the DG for Scientific & Technical Affairs
March 18th 2011
Unit 1 2 3 4
Power (MWe/th) 460/1380 784/2381 784/2381 784/2381
Type of Reactor BWR-3 BWR-4 BWR-4 BWR-4
Status at time of EQ In service – auto shutdown
In service – auto shutdown
In service – auto shutdown
Outage
Core and fuel Damaged Damaged Damaged No fuel rods
RPV & RCS integrity Unknown Unknown Unknown N/A
Containment integrityNo damage reported
Damage suspected
No information N/A
AC Power Not availableRecovery is on-going
Not available Not available
Building Severe damage Slight damage Severe damage Severe damage
Water level of RPVAround half of Fuel assembly
Around half of Fuel assembly
Around half of Fuel assembly
N/APressure of RPV Stable Unreliable data Stabilized
CV Pressure Drywell Unknown Stable Stable
Water injection to RPV Seawater Seawater Seawater N/A
Water injection to CV Not available Not available Not available N/A
Spent Fuel Pool No information No information No information No information04/15/23 05:53
Unit 5 6
Power 784/2381 1100/3293
Type of Reactor BWR-4 BWR-5
Status at the EQ occurred
Outage Outage
Core and Fuel No damage expected No Damage expected
Containment int. No damage expected No damage expected
AC Power 1 Emergency DieselFrom unit 6
Emergency Diesel
Building No damage reported No damage reported
Water level of RPV Above fuel Above fuel
Pressure of RPV No information No information
Containment Pressure No information No information
Water injection to RPV Not necessary Not necessary
Water injection to CV Not necessary Not necessary
Spent Fuel Pool Temperature
Slightly increasing Stabilised
Date : March 18 Time : UTC
Severe condition
Concern
No immediate concern
Reporting time:
04/15/23 05:53
IAEA
INES rating, March 18
• Fukushima Daiichi Units 1, 2 and 3 - INES 5• core damage caused by the loss of all cooling
function
• Fukushima Daiichi Unit 4 – INES 3• cooling and water supply in the spent fuel pool have
been lost
• Fukushima Daini Units 1, 2 and 4 – INES 3• loss of cooling functions