Evaluation of thermal displacement behavior of high temperature component and piping system in HTTR

Shinohara, Masanori ; Hamamoto, Shimpei  ; Fujimoto, Nozomu

3-dimensional floating support system is adopted to the cooling system of HTTR is meaningful to verify the thermal displacement behavior of the equipment and piping system applied the 3-dimensional floating support system. In the rated operation of HTTR, thermal displacement behavior of the high temperature equipment and piping system was measured. This paper describes the experimental and analytical results of thermal displacement characteristics of the high temperature equipment and piping system. The results showed that the resistance force induced from the supporting system effects to the thermal displacement behavior of cooling system, and the analytical results have a good agreement with the experimental results by optimizing the resistant force of the floating support system.