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249 results on '"Ciattaglia S."'

1. Tokamak cooling systems and power conversion system options

Author

Moscato, I., Barucca, L., Bubelis, E., Caruso, G., Ciattaglia, S., Ciurluini, C., Del Nevo, A., Di Maio, P.A., Giannetti, F., Hering, W., Lorusso, P., Martelli, E., Narcisi, V., Norrman, S., Pinna, T., Perez-Martin, S., Quartararo, A., Szogradi, M., Tarallo, A., and Vallone, E.

Published
2022
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5. Integrated design of breeding blanket and ancillary systems related to the use of helium or water as a coolant and impact on the overall plant design

Author

Spagnuolo, G.A., Arredondo, R., Boccaccini, L.V., Chiovaro, P., Ciattaglia, S., Cismondi, F., Coleman, M., Cristescu, I., D'Amico, S., Day, C., Del Nevo, A., Di Maio, P.A., D'Onorio, M., Federici, G., Franza, F., Froio, A., Gliss, C., Hernández, F.A., Li Puma, A., Moreno, C., Moscato, I., Pereslavtsev, P., Porfiri, M.T., Rapisarda, D., Rieth, M., Santucci, A., Schwenzer, J.C., Stieglitz, R., Tosti, S., Urgorri, F.R., Utili, M., and Vallone, E.

Published
2021
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23. Progress in EU Breeding Blanket design and integration

Author

Cismondi, F., Boccaccini, L.V., Aiello, G., Aubert, J., Bachmann, C., Barrett, T., Barucca, L., Bubelis, E., Ciattaglia, S., Del Nevo, A., Diegele, E., Gasparotto, M., Di Gironimo, G., Di Maio, P.A., Hernandez, F., Federici, G., Fernández-Berceruelo, I., Franke, T., Froio, A., Gliss, C., Keep, J., Loving, A., Martelli, E., Maviglia, F., Moscato, I., Mozzillo, R., Poitevin, Y., Rapisarda, D., Savoldi, L., Tarallo, A., Utili, M., Vala, L., Veres, G., and Zanino, R.

Published
2018
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24. DEMO design activity in Europe: Progress and updates

Author

Federici, G., Bachmann, C., Barucca, L., Biel, W., Boccaccini, L., Brown, R., Bustreo, C., Ciattaglia, S., Cismondi, F., Coleman, M., Corato, V., Day, C., Diegele, E., Fischer, U., Franke, T., Gliss, C., Ibarra, A., Kembleton, R., Loving, A., Maviglia, F., Meszaros, B., Pintsuk, G., Taylor, N., Tran, M.Q., Vorpahl, C., Wenninger, R., and You, J.H.

Published
2018
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28. Heating & current drive efficiencies, TBR and RAMI considerations for DEMO

Author

Franke, T., Agostinetti, P., Avramidis, K., Bader, A., Bachmann, Ch., Biel, W., Bolzonella, T., Ciattaglia, S., Coleman, M., Cismondi, F., Granucci, G., Grossetti, G., Jelonnek, J., Jenkins, I., Kalsey, M., Kembleton, R., Mantel, N., Noterdaeme, J.-M., Rispoli, N., Simonin, A., Sonato, P., Tran, M.Q., Vincenzi, P., and Wenninger, R.

Published
2017
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35. The role of operational feedback and R and D in ITER safety

Author

Reyes, S., Taylor, N., Cortes, P., Ciattaglia, S., Iseli, M., Perevezentsev, A., Rosanvallon, S., Gulden, W., and Sharpe, P.

Subjects
Deuterium -- Electric properties, Technical institutes -- Safety and security measures, Tritium -- Electric properties, Business, Chemistry, Electronics, Electronics and electrical industries, International Thermonuclear Experimental Reactor -- Safety and security measures
Published
2010

38. The DTT proposal. A tokamak facility to address exhaust challenges for DEMO: Introduction and executive summary

Author

Albanese R., Pizzuto A., Ariola M., Calabro G., Chmielewski P., Crisanti F., Di Gironimo G., Ramogida G., Tabares F. L., Affinito L., Anemona A., L. Apicella M., Batistoni P., Cardinali A., Ceccuzzi S., Centioli C., Corato V., Costa P., Cucchiaro A., Della Corte A., De Marzi G., Di Zenobio A., Fiamozzi Zignani C., Gabellieri L., Lampasi A., Maddaluno G., Maffia G., Marocco D., Mazzitelli G., Messina G., Mirizzi F., Moneti M., Muzzi L., Ravera G. L., Righetti R., Roccella S., Starace F., Tomassetti G., Tuccillo A. A., Tudisco O., Turtu S., Villari S., Viola B., Vitale V., Vlad G., Zito P., Zonca F., Bruschi A., Farina D., Figini L., Garavaglia S., Granucci G., Lontano M., Micheletti D., Nowak S., Sozzi C., Ambrosino R., Barbato L., Ciattaglia S., Coccorese D., Coccorese V., de Magistris M., P. Loschiavo V., Martone R., Marzullo D., Mastrostefano S., Minucci S., Mozzillo R., Palmaccio R., Pericoli-Ridolfini V., Pironti A., Rubinacci G., Tarallo A., Ventre S., Villone F., Maggiora R., Milanesio D., Agostinetti P., Bolzonella T., Carraro L., Fassina A., Franz P., Gaio E., Gnesotto F., Innocente P., Luchetta A., Manduchi G., Marrelli L., Martin P., Peruzzo S., Piovan R., Puiatti M. E., Spizzo G., Scarin P., Sonato P., Spolaore M., Toigo V., Valisa M., Zanotto L., Gorini G., Giruzzi G., Duval B., Reimerdes H., de Baar M., Zagorski R., Albanese, R., Pizzuto, A., Ariola, M., Calabrò, G., Chmielewski, P., Crisanti, F., Di Gironimo, G., Ramogida, G., Tabarés, F. L., Affinito, L., Anemona, A., Apicella, M. L., Batistoni, P., Cardinali, A., Ceccuzzi, S., Centioli, C., Corato, V., Costa, P., Cucchiaro, A., Della Corte, A., De Marzi, G., Di Zenobio, A., Fiamozzi Zignani, C., Gabellieri, L., Lampasi, A., Maddaluno, G., Maffia, G., Marocco, D., Mazzitelli, G., Messina, G., Mirizzi, F., Moneti, M., Muzzi, L., Ravera, G. L., Righetti, R., Roccella, S., Starace, F., Tomassetti, G., Tuccillo, A. A., Tudisco, O., Turtù, S., Villari, S., Viola, B., Vitale, V., Vlad, G., Zito, P., Zonca, F., Bruschi, A., Farina, D., Figini, L., Garavaglia, S., Granucci, G., Lontano, M., Micheletti, D., Nowak, S., Sozzi, C., Ambrosino, R., Barbato, L., Ciattaglia, S., Coccorese, D., Coccorese, V., de Magistris, M., Loschiavo, V. P., Martone, R., Marzullo, D., Mastrostefano, S., Minucci, S., Mozzillo, R., Palmaccio, R., Pericoli-Ridolfini, V., Pironti, A., Rubinacci, G., Tarallo, A., Ventre, S., Villone, F., Maggiora, R., Milanesio, D., Agostinetti, P., Bolzonella, T., Carraro, L., Fassina, A., Franz, P., Gaio, E., Gnesotto, F., Innocente, P., Luchetta, A., Manduchi, G., Marrelli, L., Martin, P., Peruzzo, S., Piovan, R., Puiatti, M. E., Spizzo, G., Scarin, P., Sonato, P., Spolaore, M., Toigo, V., Valisa, M., Zanotto, L., Gorini, G., Giruzzi, G., Duval, B., Reimerdes, H., de Baar, M., Zagórski, R., Albanese, R, Pizzuto, A, Ariola, M, Calabro, G, Chmielewski, P, Crisanti, F, Di Gironimo, G, Ramogida, G, Tabares, F, Affinito, L, Anemona, A, L. Apicella, M, Batistoni, P, Cardinali, A, Ceccuzzi, S, Centioli, C, Corato, V, Costa, P, Cucchiaro, A, Della Corte, A, De Marzi, G, Di Zenobio, A, Fiamozzi Zignani, C, Gabellieri, L, Lampasi, A, Maddaluno, G, Maffia, G, Marocco, D, Mazzitelli, G, Messina, G, Mirizzi, F, Moneti, M, Muzzi, L, Ravera, G, Righetti, R, Roccella, S, Starace, F, Tomassetti, G, Tuccillo, A, Tudisco, O, Turtu, S, Villari, S, Viola, B, Vitale, V, Vlad, G, Zito, P, Zonca, F, Bruschi, A, Farina, D, Figini, L, Garavaglia, S, Granucci, G, Lontano, M, Micheletti, D, Nowak, S, Sozzi, C, Ambrosino, R, Barbato, L, Ciattaglia, S, Coccorese, D, Coccorese, V, de Magistris, M, P. Loschiavo, V, Martone, R, Marzullo, D, Mastrostefano, S, Minucci, S, Mozzillo, R, Palmaccio, R, Pericoli-Ridolfini, V, Pironti, A, Rubinacci, G, Tarallo, A, Ventre, S, Villone, F, Maggiora, R, Milanesio, D, Agostinetti, P, Bolzonella, T, Carraro, L, Fassina, A, Franz, P, Gaio, E, Gnesotto, F, Innocente, P, Luchetta, A, Manduchi, G, Marrelli, L, Martin, P, Peruzzo, S, Piovan, R, Puiatti, M, Spizzo, G, Scarin, P, Sonato, P, Spolaore, M, Toigo, V, Valisa, M, Zanotto, L, Gorini, G, Giruzzi, G, Duval, B, Reimerdes, H, de Baar, M, and Zagorski, R

Subjects
Tokamak, Design, Tokamak devices, Computer science, Nuclear engineering, Divertor, DTT, Effective radiated power, 7. Clean energy, 01 natural sciences, 010305 fluids & plasmas, law.invention, law, 0103 physical sciences, General Materials Science, 010306 general physics, Civil and Structural Engineering, Test facility, Executive summary, Toroidal field, Mechanical Engineering, Tokamak device, Fusion power, Tokamak devices, Divertor, Design, Nuclear Energy and Engineering, Materials Science (all)
Abstract

As indicated in the European Fusion Roadmap, the main objective of the Divertor Tokamak Test facility (DTT) is to explore alternative power exhaust solutions for DEMO so as to mitigate the risk that the conventional divertor based on detached conditions to be tested on the ITER device cannot be extrapolated to a fusion reactor. The issues to be investigated by DTT include: • demonstrate a heat exhaust system capable of withstanding the large load of DEMO in case of inadequate radiated power fraction; • close the gaps in the exhaust area that cannot be addressed by present devices; • demonstrate that the possible (alternative or complementary) solutions (e.g., advanced divertor configurations or liquid metals) can be integrated in a DEMO device. In this paper, we describe a proposal for such a DTT, presented by ENEA in collaboration with a European team of scientists. The selection of the DTT parameters (a major radius of 2.15 m, an aspect ratio of about 3, an elongation of 1.6-1.8, a toroidal field of 6 T, and a flat top of about 100 s) has been made according to the following specifications: • edge conditions as close as possible to DEMO in terms of dimensionless parameters; • flexibility to test a wide set of divertor concepts and techniques; • compatibility with bulk plasma performance. • an upper bound of 500 M€ for the investment costs. This paper illustrates this DTT proposal showing how the basic machine parameters and concept have been selected so as to make a significant step toward the accomplishment of the power exhaust mission.

Published
2017
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39. DTT: A divertor tokamak test facility for the study of the power exhaust issues in view of DEMO

Author

Albanese, R, Affinito, L, Anemona, A, L. Apicella, M, Batistoni, P, Calabro, G, Cardinali, A, Ceccuzzi, S, Centioli, C, Corato, V, Costa, P, Crisanti, F, Cucchiaro, A, Della Corte, A, De Marzi, G, Di Zenobio, A, Fiamozzi Zignani, C, Gabellieri, L, Lampasi, A, Maddaluno, G, Maffia, G, Marocco, D, Mazzitelli, G, Messina, G, Mirizzi, F, Moneti, M, Muzzi, L, Ravera, G, Righetti, R, Roccella, S, Starace, F, Tomassetti, G, Tuccillo, A, Tudisco, O, Turtu, S, Villari, S, Viola, B, Vitale, V, Vlad, G, Zito, P, Zonca, F, Bruschi, A, Farina, D, Figini, L, Garavaglia, S, Granucci, G, Lontano, M, Micheletti, D, Nowak, S, Sozzi, C, Ambrosino, R, Barbato, L, Ciattaglia, S, Coccorese, D, Coccorese, V, de Magistris, M, P. Loschiavo, V, Martone, R, Marzullo, D, Mastrostefano, S, Minucci, S, Mozzillo, R, Palmaccio, R, Pericoli-Ridolfini, V, Pironti, A, Rubinacci, G, Tarallo, A, Ventre, S, Villone, F, Maggiora, R, Milanesio, D, Agostinetti, P, Bolzonella, T, Carraro, L, Fassina, A, Franz, P, Gaio, E, Gnesotto, F, Innocente, P, Luchetta, A, Manduchi, G, Marrelli, L, Martin, P, Peruzzo, S, Piovan, R, Puiatti, M, Spizzo, G, Scarin, P, Sonato, P, Spolaore, M, Toigo, V, Valisa, M, Zanotto, L, Gorini, G, Giruzzi, G, Duval, B, Reimerdes, H, de Baar, M, Zagorski, R, Albanese R., Affinito L., Anemona A., L. Apicella M., Batistoni P., Calabro G., Cardinali A., Ceccuzzi S., Centioli C., Corato V., Costa P., Crisanti F., Cucchiaro A., Della Corte A., De Marzi G., Di Zenobio A., Fiamozzi Zignani C., Gabellieri L., Lampasi A., Maddaluno G., Maffia G., Marocco D., Mazzitelli G., Messina G., Mirizzi F., Moneti M., Muzzi L., Ravera G. L., Righetti R., Roccella S., Starace F., Tomassetti G., Tuccillo A. A., Tudisco O., Turtu S., Villari S., Viola B., Vitale V., Vlad G., Zito P., Zonca F., Bruschi A., Farina D., Figini L., Garavaglia S., Granucci G., Lontano M., Micheletti D., Nowak S., Sozzi C., Ambrosino R., Barbato L., Ciattaglia S., Coccorese D., Coccorese V., de Magistris M., P. Loschiavo V., Martone R., Marzullo D., Mastrostefano S., Minucci S., Mozzillo R., Palmaccio R., Pericoli-Ridolfini V., Pironti A., Rubinacci G., Tarallo A., Ventre S., Villone F., Maggiora R., Milanesio D., Agostinetti P., Bolzonella T., Carraro L., Fassina A., Franz P., Gaio E., Gnesotto F., Innocente P., Luchetta A., Manduchi G., Marrelli L., Martin P., Peruzzo S., Piovan R., Puiatti M. E., Spizzo G., Scarin P., Sonato P., Spolaore M., Toigo V., Valisa M., Zanotto L., Gorini G., Giruzzi G., Duval B., Reimerdes H., de Baar M., Zagorski R., Albanese, R, Affinito, L, Anemona, A, L. Apicella, M, Batistoni, P, Calabro, G, Cardinali, A, Ceccuzzi, S, Centioli, C, Corato, V, Costa, P, Crisanti, F, Cucchiaro, A, Della Corte, A, De Marzi, G, Di Zenobio, A, Fiamozzi Zignani, C, Gabellieri, L, Lampasi, A, Maddaluno, G, Maffia, G, Marocco, D, Mazzitelli, G, Messina, G, Mirizzi, F, Moneti, M, Muzzi, L, Ravera, G, Righetti, R, Roccella, S, Starace, F, Tomassetti, G, Tuccillo, A, Tudisco, O, Turtu, S, Villari, S, Viola, B, Vitale, V, Vlad, G, Zito, P, Zonca, F, Bruschi, A, Farina, D, Figini, L, Garavaglia, S, Granucci, G, Lontano, M, Micheletti, D, Nowak, S, Sozzi, C, Ambrosino, R, Barbato, L, Ciattaglia, S, Coccorese, D, Coccorese, V, de Magistris, M, P. Loschiavo, V, Martone, R, Marzullo, D, Mastrostefano, S, Minucci, S, Mozzillo, R, Palmaccio, R, Pericoli-Ridolfini, V, Pironti, A, Rubinacci, G, Tarallo, A, Ventre, S, Villone, F, Maggiora, R, Milanesio, D, Agostinetti, P, Bolzonella, T, Carraro, L, Fassina, A, Franz, P, Gaio, E, Gnesotto, F, Innocente, P, Luchetta, A, Manduchi, G, Marrelli, L, Martin, P, Peruzzo, S, Piovan, R, Puiatti, M, Spizzo, G, Scarin, P, Sonato, P, Spolaore, M, Toigo, V, Valisa, M, Zanotto, L, Gorini, G, Giruzzi, G, Duval, B, Reimerdes, H, de Baar, M, Zagorski, R, Albanese R., Affinito L., Anemona A., L. Apicella M., Batistoni P., Calabro G., Cardinali A., Ceccuzzi S., Centioli C., Corato V., Costa P., Crisanti F., Cucchiaro A., Della Corte A., De Marzi G., Di Zenobio A., Fiamozzi Zignani C., Gabellieri L., Lampasi A., Maddaluno G., Maffia G., Marocco D., Mazzitelli G., Messina G., Mirizzi F., Moneti M., Muzzi L., Ravera G. L., Righetti R., Roccella S., Starace F., Tomassetti G., Tuccillo A. A., Tudisco O., Turtu S., Villari S., Viola B., Vitale V., Vlad G., Zito P., Zonca F., Bruschi A., Farina D., Figini L., Garavaglia S., Granucci G., Lontano M., Micheletti D., Nowak S., Sozzi C., Ambrosino R., Barbato L., Ciattaglia S., Coccorese D., Coccorese V., de Magistris M., P. Loschiavo V., Martone R., Marzullo D., Mastrostefano S., Minucci S., Mozzillo R., Palmaccio R., Pericoli-Ridolfini V., Pironti A., Rubinacci G., Tarallo A., Ventre S., Villone F., Maggiora R., Milanesio D., Agostinetti P., Bolzonella T., Carraro L., Fassina A., Franz P., Gaio E., Gnesotto F., Innocente P., Luchetta A., Manduchi G., Marrelli L., Martin P., Peruzzo S., Piovan R., Puiatti M. E., Spizzo G., Scarin P., Sonato P., Spolaore M., Toigo V., Valisa M., Zanotto L., Gorini G., Giruzzi G., Duval B., Reimerdes H., de Baar M., and Zagorski R.

Abstract

In parallel with the programme to optimize the operation with a conventional divertor based on detached conditions to be tested on the ITER device, a project has been launched to investigate alternative power exhaust solutions for DEMO, aimed at the definition and the design of a divertor tokamak test facility (DTT). The DTT project proposal refers to a set of parameters selected so as to have edge conditions as close as possible to DEMO, while remaining compatible with DEMO bulk plasma performance in terms of dimensionless parameters and given constraints. The paper illustrates the DTT project proposal, referring to a 6 MA plasma with a major radius of 2.15 m, an aspect ratio of about 3, an elongation of 1.6-1.8, and a toroidal field of 6 T. This selection will guarantee sufficient flexibility to test a wide set of divertor concepts and techniques to cope with large heat loads, including conventional tungsten divertors; liquid metal divertors; both conventional and advanced magnetic configurations (including single null, snow flake, quasi snow flake, X divertor, double null); internal coils for strike point sweeping and control of the width of the scrape-off layer in the divertor region; and radiation control. The Poloidal Field system is planned to provide a total flux swing of more than 35 Vs, compatible with a pulse length of more than 100 s. This is compatible with the mission of studying the power exhaust problem and is obtained using superconducting coils. Particular attention is dedicated to diagnostics and control issues, especially those relevant for plasma control in the divertor region, designed to be as compatible as possible with a DEMO-like environment. The construction is expected to last about seven years, and the selection of an Italian site would be compatible with a budget of 500 M.

Published
2017

40. The DTT proposal. A tokamak facility to address exhaust challenges for DEMO: Introduction and executive summary

Author

Albanese, R, Pizzuto, A, Ariola, M, Calabro, G, Chmielewski, P, Crisanti, F, Di Gironimo, G, Ramogida, G, Tabares, F, Affinito, L, Anemona, A, L. Apicella, M, Batistoni, P, Cardinali, A, Ceccuzzi, S, Centioli, C, Corato, V, Costa, P, Cucchiaro, A, Della Corte, A, De Marzi, G, Di Zenobio, A, Fiamozzi Zignani, C, Gabellieri, L, Lampasi, A, Maddaluno, G, Maffia, G, Marocco, D, Mazzitelli, G, Messina, G, Mirizzi, F, Moneti, M, Muzzi, L, Ravera, G, Righetti, R, Roccella, S, Starace, F, Tomassetti, G, Tuccillo, A, Tudisco, O, Turtu, S, Villari, S, Viola, B, Vitale, V, Vlad, G, Zito, P, Zonca, F, Bruschi, A, Farina, D, Figini, L, Garavaglia, S, Granucci, G, Lontano, M, Micheletti, D, Nowak, S, Sozzi, C, Ambrosino, R, Barbato, L, Ciattaglia, S, Coccorese, D, Coccorese, V, de Magistris, M, P. Loschiavo, V, Martone, R, Marzullo, D, Mastrostefano, S, Minucci, S, Mozzillo, R, Palmaccio, R, Pericoli-Ridolfini, V, Pironti, A, Rubinacci, G, Tarallo, A, Ventre, S, Villone, F, Maggiora, R, Milanesio, D, Agostinetti, P, Bolzonella, T, Carraro, L, Fassina, A, Franz, P, Gaio, E, Gnesotto, F, Innocente, P, Luchetta, A, Manduchi, G, Marrelli, L, Martin, P, Peruzzo, S, Piovan, R, Puiatti, M, Spizzo, G, Scarin, P, Sonato, P, Spolaore, M, Toigo, V, Valisa, M, Zanotto, L, Gorini, G, Giruzzi, G, Duval, B, Reimerdes, H, de Baar, M, Zagorski, R, Albanese R., Pizzuto A., Ariola M., Calabro G., Chmielewski P., Crisanti F., Di Gironimo G., Ramogida G., Tabares F. L., Affinito L., Anemona A., L. Apicella M., Batistoni P., Cardinali A., Ceccuzzi S., Centioli C., Corato V., Costa P., Cucchiaro A., Della Corte A., De Marzi G., Di Zenobio A., Fiamozzi Zignani C., Gabellieri L., Lampasi A., Maddaluno G., Maffia G., Marocco D., Mazzitelli G., Messina G., Mirizzi F., Moneti M., Muzzi L., Ravera G. L., Righetti R., Roccella S., Starace F., Tomassetti G., Tuccillo A. A., Tudisco O., Turtu S., Villari S., Viola B., Vitale V., Vlad G., Zito P., Zonca F., Bruschi A., Farina D., Figini L., Garavaglia S., Granucci G., Lontano M., Micheletti D., Nowak S., Sozzi C., Ambrosino R., Barbato L., Ciattaglia S., Coccorese D., Coccorese V., de Magistris M., P. Loschiavo V., Martone R., Marzullo D., Mastrostefano S., Minucci S., Mozzillo R., Palmaccio R., Pericoli-Ridolfini V., Pironti A., Rubinacci G., Tarallo A., Ventre S., Villone F., Maggiora R., Milanesio D., Agostinetti P., Bolzonella T., Carraro L., Fassina A., Franz P., Gaio E., Gnesotto F., Innocente P., Luchetta A., Manduchi G., Marrelli L., Martin P., Peruzzo S., Piovan R., Puiatti M. E., Spizzo G., Scarin P., Sonato P., Spolaore M., Toigo V., Valisa M., Zanotto L., Gorini G., Giruzzi G., Duval B., Reimerdes H., de Baar M., Zagorski R., Albanese, R, Pizzuto, A, Ariola, M, Calabro, G, Chmielewski, P, Crisanti, F, Di Gironimo, G, Ramogida, G, Tabares, F, Affinito, L, Anemona, A, L. Apicella, M, Batistoni, P, Cardinali, A, Ceccuzzi, S, Centioli, C, Corato, V, Costa, P, Cucchiaro, A, Della Corte, A, De Marzi, G, Di Zenobio, A, Fiamozzi Zignani, C, Gabellieri, L, Lampasi, A, Maddaluno, G, Maffia, G, Marocco, D, Mazzitelli, G, Messina, G, Mirizzi, F, Moneti, M, Muzzi, L, Ravera, G, Righetti, R, Roccella, S, Starace, F, Tomassetti, G, Tuccillo, A, Tudisco, O, Turtu, S, Villari, S, Viola, B, Vitale, V, Vlad, G, Zito, P, Zonca, F, Bruschi, A, Farina, D, Figini, L, Garavaglia, S, Granucci, G, Lontano, M, Micheletti, D, Nowak, S, Sozzi, C, Ambrosino, R, Barbato, L, Ciattaglia, S, Coccorese, D, Coccorese, V, de Magistris, M, P. Loschiavo, V, Martone, R, Marzullo, D, Mastrostefano, S, Minucci, S, Mozzillo, R, Palmaccio, R, Pericoli-Ridolfini, V, Pironti, A, Rubinacci, G, Tarallo, A, Ventre, S, Villone, F, Maggiora, R, Milanesio, D, Agostinetti, P, Bolzonella, T, Carraro, L, Fassina, A, Franz, P, Gaio, E, Gnesotto, F, Innocente, P, Luchetta, A, Manduchi, G, Marrelli, L, Martin, P, Peruzzo, S, Piovan, R, Puiatti, M, Spizzo, G, Scarin, P, Sonato, P, Spolaore, M, Toigo, V, Valisa, M, Zanotto, L, Gorini, G, Giruzzi, G, Duval, B, Reimerdes, H, de Baar, M, Zagorski, R, Albanese R., Pizzuto A., Ariola M., Calabro G., Chmielewski P., Crisanti F., Di Gironimo G., Ramogida G., Tabares F. L., Affinito L., Anemona A., L. Apicella M., Batistoni P., Cardinali A., Ceccuzzi S., Centioli C., Corato V., Costa P., Cucchiaro A., Della Corte A., De Marzi G., Di Zenobio A., Fiamozzi Zignani C., Gabellieri L., Lampasi A., Maddaluno G., Maffia G., Marocco D., Mazzitelli G., Messina G., Mirizzi F., Moneti M., Muzzi L., Ravera G. L., Righetti R., Roccella S., Starace F., Tomassetti G., Tuccillo A. A., Tudisco O., Turtu S., Villari S., Viola B., Vitale V., Vlad G., Zito P., Zonca F., Bruschi A., Farina D., Figini L., Garavaglia S., Granucci G., Lontano M., Micheletti D., Nowak S., Sozzi C., Ambrosino R., Barbato L., Ciattaglia S., Coccorese D., Coccorese V., de Magistris M., P. Loschiavo V., Martone R., Marzullo D., Mastrostefano S., Minucci S., Mozzillo R., Palmaccio R., Pericoli-Ridolfini V., Pironti A., Rubinacci G., Tarallo A., Ventre S., Villone F., Maggiora R., Milanesio D., Agostinetti P., Bolzonella T., Carraro L., Fassina A., Franz P., Gaio E., Gnesotto F., Innocente P., Luchetta A., Manduchi G., Marrelli L., Martin P., Peruzzo S., Piovan R., Puiatti M. E., Spizzo G., Scarin P., Sonato P., Spolaore M., Toigo V., Valisa M., Zanotto L., Gorini G., Giruzzi G., Duval B., Reimerdes H., de Baar M., and Zagorski R.

Abstract

As indicated in the European Fusion Roadmap, the main objective of the Divertor Tokamak Test facility (DTT) is to explore alternative power exhaust solutions for DEMO so as to mitigate the risk that the conventional divertor based on detached conditions to be tested on the ITER device cannot be extrapolated to a fusion reactor. The issues to be investigated by DTT include: • demonstrate a heat exhaust system capable of withstanding the large load of DEMO in case of inadequate radiated power fraction;• close the gaps in the exhaust area that cannot be addressed by present devices;• demonstrate that the possible (alternative or complementary) solutions (e.g., advanced divertor configurations or liquid metals) can be integrated in a DEMO device. In this paper, we describe a proposal for such a DTT, presented by ENEA in collaboration with a European team of scientists. The selection of the DTT parameters (a major radius of 2.15 m, an aspect ratio of about 3, an elongation of 1.6-1.8, a toroidal field of 6 T, and a flat top of about 100 s) has been made according to the following specifications: • edge conditions as close as possible to DEMO in terms of dimensionless parameters;• flexibility to test a wide set of divertor concepts and techniques;• compatibility with bulk plasma performance.• an upper bound of 500 M€ for the investment costs. This paper illustrates this DTT proposal showing how the basic machine parameters and concept have been selected so as to make a significant step toward the accomplishment of the power exhaust mission.

Published
2017

41. The Divertor Tokamak Test facility proposal: Physical requirements and reference design

Author

Crisanti, F, Albanese, R, Granucci, G, Martone, R, Sonato, P, Affinito, L, Anemona, A, L. Apicella, M, Batistoni, P, Calabro, G, Cardinali, A, Ceccuzzi, S, Centioli, C, Corato, V, Costa, P, Cucchiaro, A, Della Corte, A, De Marzi, G, Di Zenobio, A, Fiamozzi Zignani, C, Gabellieri, L, Lampasi, A, Maddaluno, G, Maffia, G, Marocco, D, Mazzitelli, G, Messina, G, Mirizzi, F, Moneti, M, Muzzi, L, Ravera, G, Righetti, R, Roccella, S, Starace, F, Tomassetti, G, Tuccillo, A, Tudisco, O, Turtu, S, Villari, S, Viola, B, Vitale, V, Vlad, G, Zito, P, Zonca, F, Bruschi, A, Farina, D, Figini, L, Garavaglia, S, Lontano, M, Micheletti, D, Nowak, S, Sozzi, C, Ambrosino, R, Barbato, L, Ciattaglia, S, Coccorese, D, Coccorese, V, de Magistris, M, P. Loschiavo, V, Marzullo, D, Mastrostefano, S, Minucci, S, Mozzillo, R, Palmaccio, R, Pericoli-Ridolfini, V, Pironti, A, Rubinacci, G, Tarallo, A, Ventre, S, Villone, F, Maggiora, R, Milanesio, D, Agostinetti, P, Bolzonella, T, Carraro, L, Fassina, A, Franz, P, Gaio, E, Gnesotto, F, Innocente, P, Luchetta, A, Manduchi, G, Marrelli, L, Martin, P, Peruzzo, S, Piovan, R, Puiatti, M, Spizzo, G, Scarin, P, Spolaore, M, Toigo, V, Valisa, M, Zanotto, L, Gorini, G, Giruzzi, G, Duval, B, Reimerdes, H, de Baar, M, Zagorski, R, Crisanti F., Albanese R., Granucci G., Martone R., Sonato P., Affinito L., Anemona A., L. Apicella M., Batistoni P., Calabro G., Cardinali A., Ceccuzzi S., Centioli C., Corato V., Costa P., Cucchiaro A., Della Corte A., De Marzi G., Di Zenobio A., Fiamozzi Zignani C., Gabellieri L., Lampasi A., Maddaluno G., Maffia G., Marocco D., Mazzitelli G., Messina G., Mirizzi F., Moneti M., Muzzi L., Ravera G. L., Righetti R., Roccella S., Starace F., Tomassetti G., Tuccillo A. A., Tudisco O., Turtu S., Villari S., Viola B., Vitale V., Vlad G., Zito P., Zonca F., Bruschi A., Farina D., Figini L., Garavaglia S., Lontano M., Micheletti D., Nowak S., Sozzi C., Ambrosino R., Barbato L., Ciattaglia S., Coccorese D., Coccorese V., de Magistris M., P. Loschiavo V., Marzullo D., Mastrostefano S., Minucci S., Mozzillo R., Palmaccio R., Pericoli-Ridolfini V., Pironti A., Rubinacci G., Tarallo A., Ventre S., Villone F., Maggiora R., Milanesio D., Agostinetti P., Bolzonella T., Carraro L., Fassina A., Franz P., Gaio E., Gnesotto F., Innocente P., Luchetta A., Manduchi G., Marrelli L., Martin P., Peruzzo S., Piovan R., Puiatti M. E., Spizzo G., Scarin P., Spolaore M., Toigo V., Valisa M., Zanotto L., Gorini G., Giruzzi G., Duval B., Reimerdes H., de Baar M., Zagorski R., Crisanti, F, Albanese, R, Granucci, G, Martone, R, Sonato, P, Affinito, L, Anemona, A, L. Apicella, M, Batistoni, P, Calabro, G, Cardinali, A, Ceccuzzi, S, Centioli, C, Corato, V, Costa, P, Cucchiaro, A, Della Corte, A, De Marzi, G, Di Zenobio, A, Fiamozzi Zignani, C, Gabellieri, L, Lampasi, A, Maddaluno, G, Maffia, G, Marocco, D, Mazzitelli, G, Messina, G, Mirizzi, F, Moneti, M, Muzzi, L, Ravera, G, Righetti, R, Roccella, S, Starace, F, Tomassetti, G, Tuccillo, A, Tudisco, O, Turtu, S, Villari, S, Viola, B, Vitale, V, Vlad, G, Zito, P, Zonca, F, Bruschi, A, Farina, D, Figini, L, Garavaglia, S, Lontano, M, Micheletti, D, Nowak, S, Sozzi, C, Ambrosino, R, Barbato, L, Ciattaglia, S, Coccorese, D, Coccorese, V, de Magistris, M, P. Loschiavo, V, Marzullo, D, Mastrostefano, S, Minucci, S, Mozzillo, R, Palmaccio, R, Pericoli-Ridolfini, V, Pironti, A, Rubinacci, G, Tarallo, A, Ventre, S, Villone, F, Maggiora, R, Milanesio, D, Agostinetti, P, Bolzonella, T, Carraro, L, Fassina, A, Franz, P, Gaio, E, Gnesotto, F, Innocente, P, Luchetta, A, Manduchi, G, Marrelli, L, Martin, P, Peruzzo, S, Piovan, R, Puiatti, M, Spizzo, G, Scarin, P, Spolaore, M, Toigo, V, Valisa, M, Zanotto, L, Gorini, G, Giruzzi, G, Duval, B, Reimerdes, H, de Baar, M, Zagorski, R, Crisanti F., Albanese R., Granucci G., Martone R., Sonato P., Affinito L., Anemona A., L. Apicella M., Batistoni P., Calabro G., Cardinali A., Ceccuzzi S., Centioli C., Corato V., Costa P., Cucchiaro A., Della Corte A., De Marzi G., Di Zenobio A., Fiamozzi Zignani C., Gabellieri L., Lampasi A., Maddaluno G., Maffia G., Marocco D., Mazzitelli G., Messina G., Mirizzi F., Moneti M., Muzzi L., Ravera G. L., Righetti R., Roccella S., Starace F., Tomassetti G., Tuccillo A. A., Tudisco O., Turtu S., Villari S., Viola B., Vitale V., Vlad G., Zito P., Zonca F., Bruschi A., Farina D., Figini L., Garavaglia S., Lontano M., Micheletti D., Nowak S., Sozzi C., Ambrosino R., Barbato L., Ciattaglia S., Coccorese D., Coccorese V., de Magistris M., P. Loschiavo V., Marzullo D., Mastrostefano S., Minucci S., Mozzillo R., Palmaccio R., Pericoli-Ridolfini V., Pironti A., Rubinacci G., Tarallo A., Ventre S., Villone F., Maggiora R., Milanesio D., Agostinetti P., Bolzonella T., Carraro L., Fassina A., Franz P., Gaio E., Gnesotto F., Innocente P., Luchetta A., Manduchi G., Marrelli L., Martin P., Peruzzo S., Piovan R., Puiatti M. E., Spizzo G., Scarin P., Spolaore M., Toigo V., Valisa M., Zanotto L., Gorini G., Giruzzi G., Duval B., Reimerdes H., de Baar M., and Zagorski R.

Abstract

The main goal of the Divertor Tokamak Test facility (DTT) is to explore alternative power exhaust solutions for DEMO. The principal objective is to mitigate the risk of a difficult extrapolation to fusion reactor of the conventional divertor based on detached conditions under test on ITER. The task includes several issues, as: (i) demonstrating a heat exhaust system capable of withstanding the large load of DEMO in case of inadequate radiated power fraction; (ii) closing the gaps in the exhaust area that cannot be addressed by present devices; (iii) demonstrating how the possible implemented solutions (e.g., advanced divertor configurations or liquid metals) can be integrated in a DEMO device. In view of these goals, the basic physical DTT parameters have been selected according to the following guidelines: (i) edge conditions as close as possible to DEMO in terms of dimensionless parameters; (ii) flexibility to test a wide set of divertor concepts and techniques; (iii) compatibility with bulk plasma performance; (iv) an upper bound of 500 M€ for the investment costs.

Published
2017

45. MEST, a New Magnetic Energy Storage and Transfer System: Application Study to the European DEMO

Author

Lunardon F., Maistrello A., Spresian I, Gaio E., Piovan R., and Ciattaglia S.

Subjects
New Magnetic Energy Storage and Transfer System, MEST, DEMO
Abstract

The European DEMOnstration fusion reactor, presently under Pre-Conceptual Design, will adopt superconducting coils rated for several tens of kA. The DEMO operation will be pulsed; the present estimation of active power required during the plasma formation is of some hundreds of MW, which could be provided by the generator or could be still required to the electrical grid. However, the acceptability to absorb high peaks of active power from the grid could be further reduced in the future, with the increase of distributed generation networks. Furthermore, if the traditional design approach, based on thyristor converters, was adopted to supply the superconducting coils, a huge amount of reactive power, higher than 2 GVar, would be required during most of the plasma pulse. Thus, large Reactive Power Compensation systems should be provided, which calls for additional plant area occupation and further issues in terms of quality of the compensation to be assured at so high power level. In the frame of the R&D in progress to face these issues, a new magnetic energy storage and transfer system has been conceived, which can improve the power handling. It is particularly suitable to supply the DEMO Central Solenoid (CS), without the need for resistive switching networks, but can be applied to supply the other coils, too. The operating principle of this system, described for CS coils, is to recover the energy from the CS in an additional Superconducting Magnetic Energy Storage coil (TC), pre-charged along with the CS one to the same current value, to perform the flux decrease. After the CS current zero crossing, the energy stored in the TC is transferred back to the CS for the plasma sustainment. The magnetic energy transfer between the CS and the TC is obtained via switched-capacitor. With this approach, the energy is exchanged between the load and the storage system, thus flattening the active power profile to be required to the grid and substantially nullify the reactive power absorbed. In this paper, the application of this concept to the European DEMO is studied, starting from the present CS magnet and circuits configuration and from the current and voltage scenario under consideration for the plasma breakdown and ramp-up, with the main aim to evaluate if the required dynamics for the switching system is compatible with the so high power level of this specific application. A tentative rating of the system components will be reported, discussing also the future R&D stages to explore the industrial feasibility of such a scheme.

Published
2019

46. EU DEMO Plant and Building Layout Criteria

Author

Ciattaglia S., Federici G., Barucca L., De Magistris M., Gaio E., Gliss C., Koerber M., Moscato I., Porfiri M.T., Riedl F., and Tarallo A.

Subjects
safety, criteria, Layout, building, tokamak
Abstract

An early attention to the layout of both plant site and its buildings is essential in a complex plant under preliminary design as DEMO in order to meet the assigned targets, namely i) the licensing requirements ii) a good availability in delivery electricity to the grid. The layout definition has to follow several criteria that become more complex and stringent for nuclear buildings, e.g. functional, maintenance, fire protection, safety, human factors, shielding, and remote handling. The criterion As Low As Reasonable Achievable with respect to the dose to the staff has to be applied in design, operation, maintenance and decommissioning phases. The tokamak building, where several complex systems have to converge to the torus to create and control the plasma, to take out its energy and to produce and extract tritium, provides the second and ultimate confinement barrier between the environment and the hazardous and radioactive materials present inside that might be mobilised, in case of accident, by the high energetic fluids stored in DEMO systems. The layout criteria are focused on avoiding any challenge to the safety functions: e.g. no common mode failures of the safety classified systems for all reference design basis events. Furthermore the safety classified equipment have to maintain their safety function all over the plant life in such challenging environmental conditions; an accurate layout might allow the qualification possible, making milder the environment, e.g. defining adequate shielding and areas where radiation dose, magnetic field and accidental environmental conditions are reasonable for sensible equipment. The experience of NPPs and ITER is also recognized as the basis of such design criteria for DEMO. The paper will outline the main design basis events and the layout criteria presenting some applications for the tokamak building that reflect the recent progress of the DEMO design.

Published
2019

50. The DEMO Plant Electrical System: Issues and Perspective

Author

Gaio E., Ferro A., Maistrello A., Dan M., Lunardon F., Barucca L., Ciattaglia S., and Federici G.

Subjects
DEMO Plant Electrical System, DEMO
Abstract

DEMO represents a fundamental step between ITER and a commercial reactor. Its main aim is to demonstrate the capability of producing electricity and operate with a closed fuel-cycle. In parallel tothe studies to explore the technology feasibility of key parts, there is also the need of others addressed at improving the plant RAMI and contributing to the overall assessment of the technical and economic viability of commercial fusion. With specific reference to the electrical power plant, the design solutions mainly adopted in the last decades need to be reconsidered now at least for two main reasons; the first is that the requirements for DEMO are more demanding, because the power peaks envisaged are significantly higher than in ITER and the handling of the generated and recirculated power poses issues not experienced in previous experimental devices, neither they will be in ITER. The other reason is that the continuous progress in the field of power semiconductors and converter topologies together with the decreasing of their cost could make more attractive, in perspective, different design solutions with respect to traditional ones. In DEMO, the Plant Electrical System (PES) is one of the largest systems; its scope covers the electrical power generation and the Power Supply (PS) systems necessary for supplying all the plant loads. The studies conducted so far have been addressed to well understand, on the one hand the specific design challenges with respect to an equivalent system for a fission power plant and on the other hand the additional issues with respect to the ITER electrical system. In order to satisfy the power needs for the DEMO operation, minimizing the request of contribution from the electrical grid, and in particular high peaks of active power and huge amount of reactive power, R&D has been launched to explore suitable electrical/magnetic energy storage systems and advanced power converter topologies to maximize the energy exchange within the plant. This talk will give an overview of the DEMO PES main requirements and system architecture, of the progress of the studies conducted so far, highlighting the main issues to be faced, the paths taken to address them and thepreliminary results achieved.

Published
2019

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