Design Study on Gas Turbine High Temperature Reactor (GTHTR300)

摘要

JAERI (Japan Atomic Energy Research Institute) has undertaken the study of an original design concept of gasrnturbine high temperature reactor, the GTHTR300 (Gas Turbine High Temperature Reactor 300). The general concept of thisrnstudy is development of a greatly simplified design that leads to substantially reduced technical and cost requirements forrnearlier technology deployment. Newly proposed design features on reactor core and gas turbine units enable the GTHTR300rnto be an efficient and economically competitive reactor in 2010s. In the fist phase of the core design, the four-year operationrnwithout a refueling was achieved by efficient use of replaceable burnable poisons under the condition that excess reactivityrndoes not exceed 2.5% A k/k during the operation. The value of 2.5% is conservatively determined based on prevention ofrnsevere core damage in an all control withdrawal accident.rnThis paper describes the original design features in detail, exemplified by safety, a particular core and plant design.