2222 高温ガス炉ガスタービン発電システム (GTHTR300) の開発研究(平成 14 年度の成果)

抄録

JAERI has undertaken the design study of gas turbine high temperature reactor, the GTHTR300. The study aimed at development of a greatly simplified design that leads to substantially reduce technical and cost requirements for earlier deployment. The GTHTR300 is expected to be an economically competitive reactor in 2010s due to newly proposed design features such as reactor core with two-year refueling interval, conventional steel material usage for a reactor pressure vessel, innovative plant flow scheme and horizontally installed gas turbine unit. This paper describes the original design features focusing on designs of reactor core, power conversion system, component technology developments and operation and control method. In the fiscal year 2002,modification was conducted for many facility designs and the higher safety margin and improved reactor characteristics were obtained.