書誌事項
- タイトル別名
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- Investigation of Fukushima Daiichi Nuclear Power Plant Accident
- (3)サポート系の機能喪失によるベント失敗
- (3)Vent failure by loss of support system function
説明
<p>Many lessons can be learned from the Fukushima Daiichi Nuclear Power Plant (NPP) accident. After the loss of Emergency Core Cooling System (ECCS) and IC core cooling, fuels in the core melted down. Leak of fission product and hydrogen began because of high-temperature damage to the PCV packing. A hydrogen explosion occurred in the upper floor in the reactor building in Units 1, 3 and 4. At Unit 2, reactor core isolation cooling (RCIC) continued to function for about 3 days. Soon after the loss of RCIC water injection, the water level in the RPV declined. Drywell pressure increased from 400 kPa to 750 kPa, and PCV top flange might leak began through silicon rubber O-ring. It was an initiation of severe contamination around the NPS. In the afternoon on March 15, wind blew toward Iidate village. Melted core relocation into lower plenum caused the radiation level increased. The radiation level was measured by containment atmospheric monitoring system (CAMS).</p>
収録刊行物
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- 動力・エネルギー技術の最前線講演論文集 : シンポジウム
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動力・エネルギー技術の最前線講演論文集 : シンポジウム 2016.21 (0), B133-, 2016
一般社団法人 日本機械学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390282680861702784
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- NII論文ID
- 130007142856
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- ISSN
- 24242950
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可