Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
272684 | Fusion Engineering and Design | 2010 | 5 Pages |
Temperature control of the high heat flux (HHF) components in the neutral beam injection (NBI) system in the Experimental Advanced Superconducting Tokamak (EAST) is a very important issue for realizing a high-parameter steady state condition in the tokamak. This paper presents a 3-D computational fluid dynamics analysis of a cooling system of a residual ion dump (RID) composed of hypervapotron structures, which has been previously used in the Mega-Amp Spherical Tokamak (MAST). The results obtained by the proposed method coincide well with experimental values, which validate this method. This study provides a powerful tool for protecting the HHF components in the NBI system from overheating and sustaining irreparable damage. Moreover, this study provides a potentially useful method for optimizing the structural design of HHF components in the NBI system.