DESIGN STUDY OF GAS TURBINE HIGH TEMPERATURE REACTOR (GTHTR300)

Abstract

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 and fuel, safety, power conversion system, and component technology developments. It is presented by a preliminary cost evaluation that the capital cost is less than a target cost of 200 thousands Yen/kWe. The present study is entrusted from the Ministry of Education, Culture, Sports, Science and Technology of Japan.