Loschiavo, Vincenzo Paolo (2017) Modelling of power exhaust in fusion plasmas. [Tesi di dottorato]


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Item Type: Tesi di dottorato
Resource language: English
Title: Modelling of power exhaust in fusion plasmas
Loschiavo, Vincenzo Paolovincenzopaolo.loschiavo@unina.it
Date: 9 April 2017
Number of Pages: 186
Institution: Università degli Studi di Napoli Federico II
Department: Ingegneria Elettrica e delle Tecnologie dell'Informazione
Dottorato: Information technology and electrical engineering
Ciclo di dottorato: 29
Coordinatore del Corso di dottorato:
Riccio, Danieledaniele.riccio@unina.it
Albanese, RaffaeleUNSPECIFIED
Ambrosino, RobertoUNSPECIFIED
Date: 9 April 2017
Number of Pages: 186
Keywords: fusion plasmas, power exhaust
Settori scientifico-disciplinari del MIUR: Area 09 - Ingegneria industriale e dell'informazione > ING-IND/31 - Elettrotecnica
Date Deposited: 09 May 2017 15:06
Last Modified: 08 Mar 2018 13:31
URI: http://www.fedoa.unina.it/id/eprint/11670
DOI: 10.6093/UNINA/FEDOA/11670

Collection description

This PhD thesis deals with the thorny problem of “Modelling of power exhaust in fusion plasmas”, a challenge concerning the development of a system able to withstand the large loads expected in the fusion power plant divertor. After an introduction to fusion and to the key concepts modelling the behaviour of the plasma during plasma-surface interactions and describing the power exhaust, an overview of the state-of-the-art in the research field on power exhaust is given. A brief introduction on theoretical basis of the plasma boundary reconstruction precedes the author first contribution in the design and vertical stability analysis of plasma alternative magnetic configurations for a demonstration fusion power plant (DEMO). The second contribution concerns an assessment of the DEMO divertor target tiles lifetime in case of strike-point sweeping. This technique is one of the most promising candidate solution to the power exhaust issue but its main drawback is related to the periodical heating and cooling of the plasma facing components inducing the thermal-fatigue phenomenon. To evaluate the lifetime of the DEMO divertor target tiles, different 2D and 3D thermo-mechanical models are presented. Finally, a preliminary analysis on the wobbling technique applied to a DEMO Double Null plasma magnetic configuration is illustrated.


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