Electromagnetic analyses of the K-DEMO divertor during the abnormal behavior of plasma
Sungjin Kwon, Kihak Im, Suk-Ho Hong
Related Research Project
Study of Demonstration Plant Design Concept and Base Technology
- Establishment of a basis for the electromagnetic analyses of tokamak structures for abnormal behavior of K-DEMO plasma.
- Plasma current profile evolution and calculation of electromagnetic force applied on divertor in MD
- 1 International Conference Presentation (30th Symposium on Fusion Technology, September 2018, Sicily, Italy) - 1 International Journal Paper (Fusion Engineering and Design, 2019, in press)
Superiorities & differences
- Establishment of the quantitative evaluation of the electromagnetic force applied to the major components of the K-DEMO tokamak in the event of abnormal behavior of plasma such as MD or VDE (Vertical Displacement Event) and acquisition of the scalability for various scenarios.
Differences - In other DEMO devices, the electromagnetic force was not evaluated since the plasma scenarios were not established. However, electromagnetic analyses were carried out for the K-DEMO with the aid of the in-house program converting plasma data.
Expected Effect & Ripple Effect
- Providing a basis for evaluating the electromagnetic force applied to the K-DEMO tokamak, and essential design parameters in evaluating the structural integrity of major in-vessel components such as divertor and blanket.
Economical & Social Perspectives
- Establishment of the research foundation and the development of the fundamental technology for the Korean demonstration fusion reactor. - Providing the technological feasibility towards the K-DEMO detailed engineering design phase.
K-DEMO modelfor electromagnetic analysis.
Plasma current evolution in MD.
Magnetic flux density(left) & Eddy current(right) distribution on the K-DEMO divertor in MD.
EM force (top) and EM moment (bottom) on the K-DEMO divertor in MD.