29th Symposium on Fusion Technology (SOFT 2016)

P2.010 The DTT device: general layout

6 Sep 2016, 14:20

1h 40m

Foyer 2A (2nd floor), 3A (3rd floor) (Prague Congress Centre)

Board: 10

Poster A. Experimental Fusion Devices and Supporting Facilities P2 Poster session

Speaker

Giuseppe Mazzitelli (Consorzio CREATE & Seconda Università di Napoli)

Description

The DTT (Divertor Test Tokamak) is a new facility conceived in the frame of EUROfusion roadmap with the aim to assess and possibly integrate all the relevant physics and technology divertor issues. The general project is presented in another paper of this conference [1] and with more details in [2]. The general project includes the analysis of the site requirements from several points of view; among other alternatives the ENEA Frascati Research Center (FRC) has been indicated on the basis of technical-scientific, organizational and economics considerations. FRC is well suited from this point of view. Since 1960, FRC hosts most of the Italian fusion research. Presently the FTU machine is in operation at FRC. For the DTT plant requirements it will be possible to adapt thecomplex FTU buildings except the DTT hall and the cryoplant. The DTT hall will be an extension of the present FTU hall. The machine would be preassembled in a modular way inside the present FTU hall, which, on a longer time scale, should host the NBI injector. The dimensions of the new hall are 30x20x28 m on three levels. On the lowest one, the cold boxes for the electrical connection of the superconductive coils will be placed while in the intermediate level the diagnostic using the bottom ports will be arranged. The third level starts at the cryostat bottom and will host all the additional heating system and the diagnostics. The machine is particularly demanding in terms of power supplies and the grid requires an extension of the 150 kV line. Discussions are in progress with the operators for energy transmission. The tunnel solution is recommended to prevent possible environmental impact. [1]     R. Albanese et Al. "Design and definition of a DTT facility", this SOFT 2016 Conference [2]     http://fsn-fusphy.frascati.enea.it/DTT_ProjectProposal_July2015.pdf