Development of heat sink concept for near-term fusion power plant divertor

10th Asia Plasma and Fusion Association Conference

Rimza, Sandeep^1 ; Khirwadkar, Samir^1 ; Velusamy, Karupanna^2

Divertor and First Wall Technology Development Division, Institute for Plasma Research (IPR), Gandhinagar, India^1

Mechanics and Hydraulics Division, Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam, India^2

关键词: Computational model;    Fusion power plant;    High heat flux;    High heat flux experiments;    High thermal;    Plasma facing surfaces;    Thermal power;    Thermal-hydraulic performance;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/823/1/012012/pdf
DOI  :  10.1088/1742-6596/823/1/012012

来源: IOP

【 摘 要 】

Development of an efficient divertor concept is an important task to meet in the scenario of the future fusion power plant. The divertor, which is a vital part of the reactor has to discharge the considerable fraction of the total fusion thermal power (∼15%). Therefore, it has to survive very high thermal fluxes (∼10 MW/m2). In the present paper, an efficient divertor heat exchanger cooled by helium is proposed for the fusion tokamak. The Plasma facing surface of divertor made-up of several modules to overcome the stresses caused by high heat flux. The thermal hydraulic performance of one such module is numerically investigated in the present work. The result shows that the proposed design is capable of handling target heat flux values of 10 MW/m2. The computational model has been validated against high-heat flux experiments and a satisfactory agreement is noticed between the present simulation and the reported results.