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FusionEPtalks

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Developing Tungsten-diamond composites for fusion applications, by Anneqa Khan

May 5, 2022

Abstract: WEST is a full W tokamak with an extensive set of diagnostics for heat load measurements especially in the lower divertor. It is composed by infrared thermography, thermal measurement with thermocouples and fiber Bragg grating embedded few mm below the surface. Associated to this thermal measurement different inverse method have been developed to estimate the heat flux deposited on the plasma facing components. The plasma heat flux is characterized by the time evolution of its amplitude and spatial shape on the target (heat flux decay length 𝜆𝑞𝑡, power spreading in the private flux region 𝑆𝑡 and the strike point location 𝑥0). The thermal diagnostics and the inverse method will be described and illustrated with experimental data from different campaigns performed at WEST.

Info: https://fusionep-talks.egyplasma.com/events/?e=73
Zoom link password: 80565B4B

 

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Written by sysadmin on . Posted in FusionEPtalks.

MHD modelling for liquid metal systems and components, by Alessandro Tassone

May 12th, 2022

Abstract: Liquid metals are promising fluids for applications in breeding blankets (BB) and plasma facing components (PFC) but, owing to their high electrical conductivity, tend to behave in bizarre and counter-intuitive ways when exposed to the intense magnetic fields which are typical of magnetic confinement reactors. Comprehension and characterization of the magnetohydrodynamic (MHD) phenomena is necessary to successfully develop and deploy components based on liquid metal technology. In this contribution, the most relevant effects of MHD for BB and PFC are reviewed and the work done at Sapienza University of Rome to model these phenomena is presented. The focus will be on direct numerical simulations performed with computational fluid-dynamic codes and the establishment of a framework for a system level code to be used in the future for safety analyses.

Info: https://fusionep-talks.egyplasma.com/events/?e=72
Zoom link password: C8C39027

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