METHOD AND RESULTS OF SAFETY EVALUATION OF THE HIGH-TEMPERATURE ENGINEERING TEST REACTOR

A modular high-temperature gas-cooled reactor (MHTGR) is expected to b e one of the best energy sources in the near future because it can sup ply high-temperature heat and have high thermal efficiency and suffici ent safety features. The safety evaluation of the future MHTGR should be performed based on the experience obtained from the safety evaluati on of the High-Temperature Engineering Test Reactor (HTTR). The safety evaluation of the HTTR was performed considering the specific safety design features of the HTGR and is applicable to the future MHTGR. Bef ore the detailed safety evaluation of the future MHTGR, the safety eva luation method and results of the HTTR should be reviewed, and newly e stablished acceptance criteria and methods for selecting evaluation ev ents must clarified. This paper describes in detail the method and res ults of the safety evaluation of the HTTR.