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Reactor model for SEAFP

E. Salpietro1998年Fusion Engineering and DesignIF 1.7出版社

AbstractObjective of the Safety and Environmental Assessment of Fusion Power (SEAFP) [1]is to `assess the safety and environmental features of fusion on the basis of the conceptual studies of tokamak power reactors which incorporate safety and environmental features likely to ensure public acceptance and take into account the operating requirements of utilities'. The fusion reactors for commercial use are expected to enter in operation in several decades, therefore the assessment shall be as relevant as possible with respect to further development in physics and technology. The reactor has been conceived for monitored and filtered release of radioactivity to the environment during normal operation equivalent to a small fraction of the natural exposure; to avoid radioactivity release to the environment for all in-plant accidents and conceivable ex-plant accidents; to avoid disruption of community life outside the plant perimeter even in the case of rupture of confinement barriers, in particular by non-anticipated plant initiators. Consideration of possible fault conditions is an integrated part of the design of the main components and their associated support systems. the overall philosophy proposed is that all faults should be contained within an individual system regardless of the initiation fault or external action.

日本語訳

抄録 核融合発電の安全性および環境影響評価(SEAFP)[1]の目的は、公衆の受容を確実にし得る安全性および環境特性を組み込み、かつ実用事業者の運転要件を考慮したトカマク型発電炉の概念設計に基づいて、核融合の安全性および環境特性を評価することである。商業用核融合炉は数十年後に運転開始が見込まれるため、本評価は、物理学および技術のさらなる進展に関して可能な限り妥当なものであるべきである。本炉は、通常運転時における環境への放射性物質の放出が自然被曝のごく一部に相当するように設計されている。また、構内で発生し得るすべての事故および構外で発生し得る事故時においても放射性物質の放出を回避し、特に想定外の事象による閉じ込めバリアの破損が生じた場合であっても、プラント境界外の地域社会の生活を混乱させないことを目的としている。主要構成機器およびその関連支持システムの設計には、考え得る故障条件の考慮が統合されている。基本設計思想は、起因事象または外部事象のいかんにかかわらず、すべての故障は個々のシステム内に閉じ込められるべきであるというものである。

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