開発途上国向け小型高温ガス炉の概念設計

摘要

日本原子力研究開発機構では，高温工学試験研究炉(HTTR)の設計，建設，試験•運転などにより得られた知見や,高温ガス炉ガスタービン発電システム(GTHTR300)の設計経験などを活用し,(株)東芝やFAPIG加盟会社である富士電機(株)，川崎重工業(株)および原子燃料工業(株)の協力も得ながら，早期に導入可能な開発途上国向け小型高温ガス炉(HTR50S)の概念設計を進めている。本報では，小型高温ガス炉の全体概耍や，原子炉設計,冷却設備設計などについて報告する。%In order to deploy the HTGR in developing countries at an early date, JAEA has conducted a conceptual design of a 50MWt small-sized HTGR for multiple heat applications, named HTR50S, with support of TOSHIBA Corporation and FAPIG member companies utilizing the knowledge obtained by the design, construction and operation of the High Temperature Engineering Test Reactor (HTTR) and also based on the experiences of the design study of the Gas-Turbine High Temperature Gas-cooled Reactor, GTHTR300. This paper presents an outline of the HTR50S plant design, as well as an outline of the system design, such as the reactor design and the cooling system design.