Study of Thermal and Cooling Load for Thermal Shield Design

KUTE A, KBSI B

Kwang-sun Kim A, @Dong-Lak Kim B, Young-mi Noh A, Seung Hyun Kim B, Seung Yeon Cho B, Myun Kwon B, Gyung-Su Lee B

　 In order to derive the detailed design of Thermal Shield Cryopanel (or Cryopanel), which plays a role to make the Tokamak Nuclear Fusion Equipment work at both stable and efficient conditions, the commercially available software package FLUENT Version 5.3, whose accuracy already verified, was utilized. This study investigated the effects of thermal sources and distributions on the temperatures of Lid, Body, Base, and EH-Port Cryopanel by the numerical technique whose grid generations cover the solid and gas region of the panel. The physical model of the Thermal Shield Cryopanel is that the 10mm diameter of the pipe with 1mm thickness is soldered on the SUS Panel with 4mm thickness. The heat fluxes to the panel are assumed to be by thermal radiation in the vacuum space and by conduction through the supporters. The inlet conditions of Helium gas are 20 atmospheric pressures and 60K temperature.