HTTR(高温工学試験研究炉)の試験・運転と技術開発(2011年度)

Operation, test, research and development of the High Temperature Engineering Test Reactor (HTTR) (FY2011)

高温工学試験研究炉部

Department of HTTR

日本原子力研究開発機構大洗研究開発センターのHTTR(高温工学試験研究炉)は、熱出力30MWの黒鉛減速ヘリウムガス冷却型原子炉で、我が国初の高温ガス炉である。平成23年度は、平成23年3月11日に発生した東北地方太平洋沖地震の影響により、運転及び保守作業等の計画を変更し、設備点検,地震応答解析等による地震後の原子炉施設の健全性確認について総合的に評価を進めた。本報告書は、平成23年度(2011年)のHTTRの運転と保守及び各種技術開発の状況等について紹介する。

The High Temperature Engineering Test Reactor (HTTR) constructed at the Oarai Research and Development Center of the Japan Atomic Energy Agency (JAEA) is the first high-temperature gas-cooled reactor (HTGR) in Japan. The HTTR is a graphite-moderated and helium gas-cooled reactor with 30 MW of thermal power. In fiscal year 2011, planed operations and maintenance was disturbed by the 2011 off the Pacific coast of Tohoku Earthquake and the operation and maintenance plans were revised. The certification evaluation of the nuclear facilities after the earthquake was carried comprehensively out with the equipment inspections and the seismic response analysis. This report summarizes activities and results of HTTR operation, maintenance, and several R&Ds, which were carried out in the fiscal year 2011.