Na冷却大型炉設計研究(研究報告)

Design Study on Sodium-Cooled Large-Scale Reactor

木曽原 直之 ; 菱田 正彦; 新部 信昭; 堀 徹; 藤井 正; 内田 昌人; 近澤 佳隆  ; 三枝 利家; 宇野 修; 惣万 芳人; 西口 洋平; 此村 守

Kisohara, Naoyuki; Hishida, Masahiko; Nibe, Nobuaki; Hori, Toru; Fujii, Tadashi; Uchita, Masato; Chikazawa, Yoshitaka; Saigusa, Toshiie; Uno, Osamu; Soman, Yoshindo; Nishiguchi, Yohei; Konomura, Mamoru

本報告は、実用化戦略調査研究フェーズIIの2年目である平成14年度に実施したNa冷却大型炉設計研究の成果をまとめたものである。平成14年度の設計研究では、平成13年度の成立性に係わる課題としてあげられていた安全性、構造健全性及び熱流動に関する成立性評価を行い、その結果に基づきNa冷却大型炉のプラント概念を見なおした、主要設備の基本仕様を明確化し、経済性評価を実施した。 本研究の結果、経済性目標(建設コスト20万円/kWe以下、等)を満足し、概念成立性に関する基本的な見通しを有するNa冷却大型炉のプラント概念が構築された。

In Phase 2 of the F/S, it is planed to precede a preliminary conceptual design of a sodium-cooled large-scale reactor based on the design of the advanced loop type reactor. Through the design study, it is intended to construct such a plant concept that can show its attraction and competitiveness as a commercialized reactor. This report summarizes the results of the design study on the sodium-cooled large-scale reactor performed in JFY2002, which is the second year of Phase 2. In the JFY2002 design study, critical subjects related to safety, structural integrity and thermal hydraulics which found in the last fiscal year has been examined and the plant concept has been modified. Furthermore, fundamental specifications of main systems and components have been set and economy has been evaluated.As a result of this study, the plant concept of the sodium-cooled large-scale reactor has been constructed, which has a prospect to satisfy the economic goal (construction cost: less than 200,000yens/kWe, etc.) and has a prospect to solve the critical subjects.