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The ITER TF coil ripple: Evaluation of ripple attenuation using Fe insert and of ripple enhancement produced by TBM
- Source :
- Fusion Engineering and Design. 83:1619-1624
- Publication Year :
- 2008
- Publisher :
- Elsevier BV, 2008.
-
Abstract
- An accurate evaluation of the toroidal field ripple in ITER has been carried out by finite element models including the presence of the 18 TF coils and a set of ferromagnetic inserts that aim to lower the field ripple well below 1%. As shown, a set of ad hoc distributed plates made of AISI 430 stainless steel (Bsat = μ0Msat ∼1.5 T) and located at the outboard plasma region side in between the vessel shells can reduce the peak ripple at the plasma boundary to ∼0.4% at full toroidal field (i.e., BTF ∼5.3 T at R = 6.2 m). Better compensation can be achieved by adopting higher magnetic saturation materials (e.g., EUROFER). The Test Blanket Modules pair modeled here and made of EUROFER (Bsat ∼1.8 T at 300 K) introduces a large perturbation to the field ripple up to ∼1.1% at full field.
Details
- ISSN :
- 09203796
- Volume :
- 83
- Database :
- OpenAIRE
- Journal :
- Fusion Engineering and Design
- Accession number :
- edsair.doi...........a4e857ae93f29cd8548cc177f1e0cfce