Emergency core cooling system
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United States of America Patent
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May 12, 2015
Grant Date -
Dec 25, 2008
app pub date -
May 6, 2008
filing date -
May 10, 2007
priority date (Note) -
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Abstract
An emergency core cooling system is provided with a hybrid safety system composed of an active safety system and a static safety system for ensuring the safety against a severe natural phenomenon such as a giant earthquake and a mega hurricane. An emergency core cooling system for a boiling water reactor includes four safety divisions in total: three safety divisions for an active safety system having a high pressure reactor core cooling system, a low pressure reactor core cooling system, a residual heat removal system, and an emergency diesel generator; and one safety division for a static safety system having an isolation condenser, a gravity drop reactor core cooling system, and a static containment vessel cooling system.
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