3. Fukushima Daiichi Nuclear Power Plant Before the Accident Unit 1 Unit 2 Unit 3 Unit 4 Units 5, 6 At the time of the earthquake Reactors 1, 2 and 3 operating Reactors 4, 5 and 6 shutdown for maintenance, inspection, refueling
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5. Boiling Water Reactor Design Spent Fuel Pool Reactor Vessel Suppression Pool (Torus) Primary Containment Steel Containment Vessel Secondary Containment Area of Explosion at Fukushima Daiichi Units 1 and 3 Seawater Is Being Pumped Into Reactor Vessels at Units 1, 2 and 3 Boiling Water Reactor Design At Fukushima Daiichi
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Hinweis der Redaktion
Thank you for joining us for this briefing. NEI in conjunction with our member companies have been striving to provide timely information that is as accurate as possible during the Japanese nuclear accident at Fukushima Daiichi. We have received information from Tokyo Electric Power Company (the owner of the affected units), the Japan Atomic Industrial Forum which is our sister agency in Japan, the Japan Electric Association, the US Department of Energy and US Nuclear Regulatory Commission along with other companies and organizations. In addition, the Institute for Nuclear Power Operations which is an internal industry oversight organization through the World Association of Nuclear Operators, has been working to obtain specific technical information and lessons learned from the Fukushima site to ensure the U.S. nuclear plants will have access to the information from the events and can develop lessons learned as quickly as possible. We cannot say enough about the courage and determination of the personnel working at the Fukushima Daiichi site. They may not know the status of their homes and families after the devastation caused by the earthquake and tsunami, but remain focused on their jobs to protect the health and safety of the public. Our thoughts and prayers are with them and all of the people of Japan affected by these events. Our industry is helping with technical support, supplies and equipment as requested by the Japanese.
6 Units 1-4 on the left, 5 and 6 on the right in the northeast corner of the slide. All boiling water reactors. Units 1-3 were operating and units 4-6 were already shut-down for maintenance and refueling outages.
BWR design used for all of the plants at Fukushima Daiichi site. Primary containment – where the reactor is located, pressure vessel, release pressure through controlled venting and circulate water to cool the fuel Secondary containment – not a pressure vessel (has blow-out panels to direct impact away from the primary containment), houses the spent fuel pool
Voluntary initiative led by INPO We support President’s call for comprehensive review and we will take action as the lessons learned dictate Continuous learning from events
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