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117 results on '"Marzullo, D."'

6. Progress of Design and Development for the ITER Radial Neutron Camera

Author

Esposito, B., Marocco, D., Gandolfo, G., Belli, F., Bertalot, L., Blocki, J., Bocian, D., Brolatti, G., Cecconello, M., Centioli, C., Pereira, R. C., Conroy, S., Crescenzi, F., Cruz, N., de Bilbao, L., Domenicone, A., Ducasse, Q., Di Mambro, G., Dongiovanni, D., Eletxigerra, I., Etxeita, B., Fernandez, A., Ficker, O., Gallina, P., Giacomin, T., Ginoulhiac, G., Godlewski, J., Hjalmarsson, A., Imrisek, M., Kantor, R., Kasprzak, K., Kotula, J., Krasilnikov, V., Lewandowska, M., Maffucci, A., Marotta, U., Marzullo, D., Mazzitelli, G., Mazzone, G., Miklaszewski, R., Mikszuta-Michalik, K., Maciocha, W., Magagnino, S., Misano, M., Mlynar, J., Monti, C., Moro, F., Ortwein, R., Passeri, M., Pinna, T., Pirovano, E., Pisciotta, V., Pompili, F., Podda, S., Riva, M., Santos, B., Sousa, J., Swierblewski, J., Szklarz, P., Tatí, A., Ventre, S., Villone, F., Virgili, N., and Zimbal, A.

Published
2022
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7. Divertor of the European DEMO: Engineering and technologies for power exhaust

Author

You, J.H., Mazzone, G., Visca, E., Greuner, H., Fursdon, M., Addab, Y., Bachmann, C., Barrett, T., Bonavolontà, U., Böswirth, B., Castrovinci, F.M., Carelli, C., Coccorese, D., Coppola, R., Crescenzi, F., Di Gironimo, G., Di Maio, P.A., Di Mambro, G., Domptail, F., Dongiovanni, D., Dose, G., Flammini, D., Forest, L., Frosi, P., Gallay, F., Ghidersa, B.E., Harrington, C., Hunger, K., Imbriani, V., Li, M., Lukenskas, A., Maffucci, A., Mantel, N., Marzullo, D., Minniti, T., Müller, A.V., Noce, S., Porfiri, M.T., Quartararo, A., Richou, M., Roccella, S., Terentyev, D., Tincani, A., Vallone, E., Ventre, S., Villari, R., Villone, F., Vorpahl, C., and Zhang, K.

Published
2022
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12. Progress in EU-DEMO in-vessel components integration

Author

Cismondi, F., Agostinetti, P., Aiello, G., Aubert, J., Bachmann, C., Biel, W., Boccaccini, L.V., Bruschi, A., Day, Chr., Del Nevo, A., Di Gironimo, G., Fernandez, I., Franke, T., Grossetti, G., Hernandez, F., Iglesias, D., Keep, J., Lang, P., Loving, A., Norajitra, P., Mazzone, G., Marzullo, D., Ploeckl, B., Mozzillo, R., Rapisarda, D., Sonato, P., Tran, M.Q., Vaccaro, A., Villari, R., You, J.H., and Zeile, C.

Published
2017
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17. Conceptual design studies for the European DEMO divertor: Rationale and first results

Author

You, J.H., Mazzone, G., Visca, E., Bachmann, Ch., Autissier, E., Barrett, T., Cocilovo, V., Crescenzi, F., Domalapally, P.K., Dongiovanni, D., Entler, S., Federici, G., Frosi, P., Fursdon, M., Greuner, H., Hancock, D., Marzullo, D., McIntosh, S., Müller, A.V., Porfiri, M.T., Ramogida, G., Reiser, J., Richou, M., Rieth, M., Rydzy, A., Villari, R., and Widak, V.

Published
2016
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19. Remote Handling System for the DTT Fusion Reactor: A System Engineering Approach for Preliminary Conceptual Design of the Main Robotic Equipment

Author

Lauretti C., Grazioso S., E. De Marchi, Grasso T., Indrigo D., Favaretto M., Marzullo D., Miccichè G., Parisi M., Reale A., G. Di Gironimo, OnePetro, Lauretti, C., Grazioso, S., De Marchi, E., Grasso, T., Indrigo, D., Favaretto, M., Marzullo, D., Miccichè, G., Parisi, M., Reale, A., and Di Gironimo, G.

Subjects
artificial intelligence, maintenance, handling system, sensor, ground transportation, operation, requirement, rail transportation, vehicle, manipulator
Abstract

The aim of the Divertor Tokamak Test (DTT) facility, whose construction is starting at ENEA premises in Frascati, Italy, is to test different concepts of divertors under integrated physics and technical conditions that can reliably be extrapolated to DEMO experimental plant. The replacement of the divertor inside the Vacuum Vessel is, therefore, not simply a chance in case of failure of a divertor cassette, but a scheduled event that will occur several times in the lifetime of the machine. This operation, as well as replacement of First Wall modules (in case of failure), is therefore necessary and must be carried out through a Remote Handling (RH) System, being humans not allowed to enter inside the Vacuum Vessel, due to the high radiation levels inside it, and to stay in contact with activated dusts. The compact dimension of the DTT machine and, at the same time, the great dimensions of coils needed to get the requested performance, constrain port dimensions and, consequently, add additional issues to the design of the RH System. Starting from RH strategy already conceived by CREATE Consortium, and moving from a continuously growing list of technical and functional requirements, this paper describes the iterative process based on a system engineering approach which is driving the conceptual design of the main RH equipment for Divertor and First Wall modules. Compliance of the conceived concepts with requirements has been confirmed by first simulations on static force analysis, workspace and dexterity evaluation.

Published
2021

20. An Assessment of Alternative Divertors for the European DEMO

Author

Militello F., Aho-Mantila L., Body T., Bufferand H., Ciraolo G., Calabro G., Coster D., Di Gironimo G., Fanelli P., Fedorczak N., Hermann A., Innocente P., Ambrosino R., Kembleton R., Lunt T., Marzullo D., Merriman S., Moulton D., Nielsen A.H., Omatani J., Ramogida G., Reimerdes H., Reinhart M., Ricci P., Riva P., Stegmeir A., Subbba F., Suttrop W., Tamain P., Teschke M., Thrysoe A., Treutterer W., Varoutis S., Wensing M., Wischmeier M., and Xiang L.

Subjects
European DEMO, Alternative Divertors
Abstract

The uncertainties surrounding the physics of plasma exhaust and its centrality in reactor design require a thorough evaluation of promising alternatives as a precautionary measure to avoid delays in DEMO, if the ITER solution for the divertor could not extrapolate to reactor relevant machines. In this contribution, we review the physics and engineering work carried out within EUROfusion's work package DTT1/ADC on the subject (see Fig.1), showing with a quantitative assessment that alternative configurations provide a larger operating space than the single null according to multifluid simulations (in particular, lower Argon seeding levels and core concentration; lower separatrix density for comparable divertor protection; greater resilience to high power operations), but also highlighting the many engineering challenges that these configurations entail. The 3D engineering analysis of the alternative designs shows that the balance between port space for remote maintenance and the reinforcement of the supporting intercoil structures, stiffening the structure with respect to out of plane forces, is crucial to achieve acceptable solutions. In addition, active and passive magnetic control, pumping, neutronics and turbulence in alternative configurations will be discussed with quantitative analyses.

Published
2021

21. Preliminary analysis of alternative divertors for DEMO

Author

Militello, F., primary, Aho-Mantila, L., additional, Ambrosino, R., additional, Body, T., additional, Bufferand, H., additional, Calabro, G., additional, Ciraolo, G., additional, Coster, D., additional, Di Gironimo, G., additional, Fanelli, P., additional, Fedorczak, N., additional, Herrmann, A., additional, Innocente, P., additional, Kembleton, R., additional, Lilburne, J., additional, Lunt, T., additional, Marzullo, D., additional, Merriman, S., additional, Moulton, D., additional, Nielsen, A.H., additional, Omotani, J., additional, Ramogida, G., additional, Reimerdes, H., additional, Reinhart, M., additional, Ricci, P., additional, Riva, F., additional, Stegmeir, A., additional, Subba, F., additional, Suttrop, W., additional, Tamain, P., additional, Teschke, M., additional, Thrysoe, A., additional, Treutterer, W., additional, Varoutis, S., additional, Wensing, M., additional, Wilde, A., additional, Wischmeier, M., additional, and Xiang, L.Y., additional

Published
2021
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23. 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

24. Assessment of alternative divertor configurations as an exhaust solution for DEMO

Author

Reimerdes, H., primary, Ambrosino, R., additional, Innocente, P., additional, Castaldo, A., additional, Chmielewski, P., additional, Di Gironimo, G., additional, Merriman, S., additional, Pericoli-Ridolfini, V., additional, Aho-Mantilla, L., additional, Albanese, R., additional, Bufferand, H., additional, Calabro, G., additional, Ciraolo, G., additional, Coster, D., additional, Fedorczak, N., additional, Ha, S., additional, Kembleton, R., additional, Lackner, K., additional, Loschiavo, V.P., additional, Lunt, T., additional, Marzullo, D., additional, Maurizio, R., additional, Militello, F., additional, Ramogida, G., additional, Subba, F., additional, Varoutis, S., additional, Zagórski, R., additional, and Zohm, H., additional

Published
2020
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26. DTT - Divertor Tokamak Test facility - Interim Design Report

Author

Affinito, L., Almaviva, S., Anemona, A., Angelone, M., Apicella, M. L., Appi, A., Apruzzese, G., Artaserse, G., Barone, G., Baruzzo, M., Batistoni, P., Bombarda, F., Boncagni, L., Buratti, P., Caiffi, B., Caneve, L., Caponero, M., Cardinali, A., Ceccuzzi, S., Centioli, C., Claps, G., Cocilovo, V., Colangeli, A., Colao, F., Contessa, G. M., Corato, V., Cordella, F., Crisanti, F., Cucchiaro, A., D’arcangelo, O., Della Corte, A., Luca, R., Di Pace, L., Di Zenobio, A., Dose, G., Fiamozzi Zignani, C., Flammini, D., Fonnesu, N., Frattolillo, A., Gabellieri, L., Galatola, G., Giannini, L., Giovannozzi, E., Grieco, M. T., Guardati, M., Iafrati, M., Iovinella, I., Lampasi, A., Lanchi, C., Lazic, V., Liuzza, D., Maddaluno, G., Magagnino, S., Mancini, A., Marocco, D., Martelli, E., Mazzitelli, G., Mazzotta, C., Messina, G., Monti, C., Morici, L., Moro, F., Muzzi, L., Pacella, D., Pillon, M., Piron, C., Pizzuto, A., Pollastrone, F., Polli, G. M., Pospodarczyk, M., Ramogida, G., Ravera, G. L., Righetti, R., Roccella, S., Romanelli, G., Romano, A., Romano, R., Rydzy, A., Sandri, S., Starace, F., Tuccillo, A. A., Tudisco, O., Turtù, S., Vellucci, M., Villari, R., Viola, B., Vitale, V., Vlad, G., Zerbini, M., Zito, P., Zoboli, L., Zonca, F., Alessi, E., Baiocchi, B., Bin, W., Bruschi, A., Causa, F., Cremona, A., Fanale, F., Farina, D., Figini, L., Garavaglia, S., Granucci, G., Lontano, M., Moro, A., Muraro, A., Nowak, S., Perelli, E., Ricci, D., Schmuck, S., Sozzi, C., Tardocchi, M., Uccello, A., William, B., Albanese, R., Ambrosino, R., Ariola, M., Castaldo, A., Coccorese, D., Coccorese, V., Magistris, M., Tommasi, G., Di Gironimo, G., Fresa, R., Grazioso, S., Loschiavo, V. P., Martone, R., Marzullo, D., Mattei, M., Mele, A., Mozzillo, R., Orsitto, F. P., Pironti, A., Rubinacci, G., Tarallo, A., Ventre, S., Villone, F., ROBERTO BONIFETTO, Maggiora, Riccardo, DANIELE MILANESIO, Giuseppe Francesco Nallo, Laura Savoldi, Fabio SUBBA, Zanino, Roberto, ANDREA ZAPPATORE, Agostinetti, P., Agostini, M., Barbisan, M., Bolzonella, T., Carraro, L., Castaldo, C., Cavazzana, R., Masi, G., Fassina, A., Ferro, A., Franz, P., Giacomelli, L., Giudicotti, L., Gnesotto, F., Gobbin, M., Innocente, P., Luchetta, A., Manduchi, G., Marrelli, L., Martin, P., Martines, E., Moressa, M., Pasqualotto, R., Peruzzo, S., Piron, L., Puiatti, M. E., Scarin, P., Sonato, P., Spizzo, G., Spolaore, M., Terranova, D., Valisa, M., Vallar, M., Vianello, N., Vincenzi, P., Zaniol, B., Zuin, M., Calabrò, G., Lombroni, R., Minucci, S., Gorini, G., Nocente, M., Santis, A., Maggiacomo, L., Mariano, G., Osipenko, M., Ripani, M., Murtas, F., and Luis, R.

Subjects
Nuclear fusion, Nuclear fusion, Divertor Tokamak Test, Divertor Tokamak Test
Published
2019

27. 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. 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., Affinito, L., Anemona, A., Apicella, M. L., Batistoni, P., Calabrò, 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., Pizzuto, A., Ramogida, G., 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., Albanese, R., Ambrosino, R., Barbato, L., Ciattaglia, S., Coccorese, D., Magistris, De, Gironimo, Di, Loschiavo, G., 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., 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, L. Apicella, M., Calabro, G., Turtu, S., Coccorese, V., de Magistris, M., P. Loschiavo, V., Duval, B., Reimerdes, H., de Baar, M., Zagorski, R., and Albanese

Subjects
Nuclear and High Energy Physics, Liquid metal, Tokamak, Computer science, Nuclear engineering, 01 natural sciences, 7. Clean energy, 010305 fluids & plasmas, law.invention, law, 0103 physical sciences, divertor, Point (geometry), plasma facing components, tokamak, 010306 general physics, Nuclear and High Energy Physic, Condensed Matter Physics, Divertor, Pulse duration, Plasma, Aspect ratio (image), Power (physics), plasma facing component
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
2016

29. Iterative and Participative Axiomatic Design Process in complex mechanical assemblies: case study on fusion engineering.

Author

Gironimo, G., Lanzotti, A., Marzullo, D., Esposito, G., Carfora, D., and Siuko, M.

Abstract

The present paper proposes a structured Product Development Lifecycle (PDL) model to deal with the concept design stage of complex assemblies. The proposed method provides a systematic approach to design, aimed to improve requirements management, project management and communication among stakeholders as well as to avoid project failures reducing project development time. This research also provides suggestions and recommendations for utilizing different analysis, synthesis and assessment methodologies along with the proposed approach. The process developed, named Iterative and Participative Axiomatic Design Process (IPADeP), is consistent with ISO/IEC 15288:2008 - 'Systems and software engineering', and INCOSE Systems engineering handbook. It is an iterative and incremental design process, participative and requirements driven, based on the theory of Axiomatic Product Development Lifecycle (APDL). IPADeP provides a systematic methodology in which, starting from a set of experts' assumptions, a number of conceptual solutions are generated, analysed and evaluated. Based on the results obtained, new iterations can be performed for each level of decomposition while product requirements are refined. In this paper, we applied IPADeP to the initial phase of conceptual design activities for DEMO divertor-to-vacuum vessel locking system in order to propose new innovative solutions. [ABSTRACT FROM AUTHOR]

Published
2015
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39. Preliminary analysis of alternative divertors for DEMO

Author

Militello, F., Aho-Mantila, L., Ambrosino, R., Body, T., Bufferand, H., Calabro, G., Ciraolo, G., Coster, D., Di Gironimo, G., Fanelli, P., Fedorczak, N., Herrmann, A., Innocente, P., Kembleton, R., Lilburne, J., Lunt, T., Marzullo, D., Merriman, S., Moulton, D., Nielsen, A. H., Omotani, J., Ramogida, G., Reimerdes, H., Reinhart, M., Ricci, P., Riva, F., Stegmeir, A., Subba, F., Suttrop, W., Tamain, P., Teschke, M., Thrysoe, A., Treutterer, W., Varoutis, Stylianos, Wensing, M., Wilde, A., Wischmeier, M., and Xiang, L. Y.

Subjects
Alternative divertor configurations, Divertor design, 7. Clean energy, DEMO
Abstract

A physics and engineering analysis of alternative divertor configurations is carried out by examining benefits and problems by comparing the baseline single null solution with a Snowflake, an X- and a Super-X divertor. It is observed that alternative configurations can provide margin and resilience against large power fluctuations, but their engineering has intrinsic difficulties, especially in the balance between structural solidity and accessibility of the components and when the specific poloidal field coil positioning poses further constraints. A hybrid between the X- and Super-X divertor is proposed as a possible solution to the integration challenge.

41. Thermal, electromagnetic and structural analysis of gas baffles for the TCV divertor upgrade

Author

Vaccaro, D., Elaian, H., Reimerdes, H., Baquero, M., Duval, B.P., Marzullo, D., Moret, J.-M., Theiler, C., Calabrò, Giuseppe, Di Gironimo, G., Fanelli, Pierluigi, Minucci, Simone, Salvitti, Alessandra, and Toussaint, M.

Subjects
TCVDivertorPlasma facing componentsFinite element analysis, 7. Clean energy
Abstract

This is the accepted manuscript (post-peer reviewed) of the following final paper: "Vaccaro, D., Elaian, H., Reimerdes, H., Baquero, M., Duval, B.P., Marzullo, D., Moret, J.-M., Theiler, C., Calabrò, G., Di Gironimo, G., Fanelli, P., Minucci, S., Salvitti, A., Toussaint, M., Thermal, electromagnetic and structural analysis of gas baffles for the TCV divertor upgrade, (2019) Fusion Engineering and Design, 146, pp. 1543-1547, https://doi.org/10.1016/j.fusengdes.2019.02.125"

42. Thermal, electromagnetic and structural analysis of gas baffles for the TCV divertor upgrade

Author

Vaccaro, D., Elaian, H., Reimerdes, H., Baquero, M., Duval, B.P., Marzullo, D., Moret, J.-M., Theiler, C., Calabrò, Giuseppe, Di Gironimo, G., Fanelli, Pierluigi, Minucci, Simone, Salvitti, Alessandra, and Toussaint, M.

Subjects
TCVDivertorPlasma facing componentsFinite element analysis, 7. Clean energy
Abstract

This is the accepted manuscript (post-peer reviewed) of the following final paper: "Vaccaro, D., Elaian, H., Reimerdes, H., Baquero, M., Duval, B.P., Marzullo, D., Moret, J.-M., Theiler, C., Calabrò, G., Di Gironimo, G., Fanelli, P., Minucci, S., Salvitti, A., Toussaint, M., Thermal, electromagnetic and structural analysis of gas baffles for the TCV divertor upgrade, (2019) Fusion Engineering and Design, 146, pp. 1543-1547, https://doi.org/10.1016/j.fusengdes.2019.02.125"

45. Structural verification and manufacturing procedures of the cooling system, for DEMO divertor target (OVT)

Author

G. Mazzone, G. Di Gironimo, V. Imbriani, D. Coccorese, U. Bonavolonta, D. Marzullo, S. Garitta, J.-H. You, V. Cerri, E. Vallone, P.A. Di Maio, A. Tincani, Mazzone, G., You, J. -H., Cerri, V., Coccorese, D., Garitta, S., Di Gironimo, G., Marzullo, D., Di Maio, P. A., Vallone, E., Tincani, A., Bonavolontà, U., Imbriani, V., Bonavolonta, U., Mazzone, G, You, JH, Cerri, V, Coccorese, D, Garitta, S, Di Gironimo, G, Marzullo, D, Di Maio, PA, Vallone, E, Tincani, A, Bonavolonta, U, and Imbriani, V

Subjects
Power station, Computer simulation, Design activities, Divertor target cooling mock-up, Nuclear engineering, Divertor, Mechanical Engineering, Divertor cassette, CAD, Fault (power engineering), 01 natural sciences, 010305 fluids & plasmas, Nuclear Energy and Engineering, 0103 physical sciences, Water cooling, DEMO, Civil and Structural Engineering, Materials Science (all), General Materials Science, Test plan, 010306 general physics, Settore ING-IND/19 - Impianti Nucleari
Abstract

The paper presents the design activities and testing plan of a vertical target mock-up, developed within the pre-conceptual design phase for DEMO Work Package DIV-1 “Divertor Cassette Design and Integration” - EUROfusion Power Plant Physics & Technology (PPPT) program. Activities concerning the Divertor Outboard Vertical Target cooling mock-up are presented in term of CAD model, thermal-hydraulic numerical simulation, structural analysis, structural integrity verification and manufacturing procedure. Moreover, the mechanical dimensions of support systems for Plasma Facing Components (PFCs), manifold and diffuser have been analyzed in detail, in order to avoid structural fault during the test. Test procedures are discussed, taking into account design parameters, design code and facility performances. The CuCrZr alloy selected for the PFCs of EU DEMO divertor has been used also for the mock-up, while two options are still under evaluation for manifolds/diffuser, CuCrZr and stainless Steel 316 L(N)-IG, depending on the joining technology. Since the mock-up is mainly intended to verify hydraulic performances, it has been simplified by removing the W monoblocks from its PFCs. © 2019 ENEA Frascati, Fusion & Technology for Nuclear Safety and The Authors

Published
2019

46. Progress in the initial design activities for the European DEMO divertor: Subproject 'Cassette'

Author

G. Di Gironimo, G. Ramogida, P.A. Di Maio, Maria Teresa Porfiri, Jeong-Ha You, Rosaria Villari, Massimo Zucchetti, G. Mariano, Danilo Nicola Dongiovanni, D. De Meis, C. Bachmann, Giuseppe Mazzone, D. Coccorese, E. Vallone, D. Marzullo, S. Garitta, V. Cocilovo, P. Frosi, You, Jh, Mazzone, G, Bachmann, Ch, Coccorese, D, Cocilovo, V, De Meis, D, Di Maio, Pa, Dongiovanni, D, Frosi, P, DI GIRONIMO, Giuseppe, Garitta, S, Mariano, G, Marzullo, D, Porfiri, Mt, Ramogida, G, Vallone, E, Villari, R, Zucchetti, M, Di Gironimo, G, You, Jeong-Ha, Mazzone, G., Bachmann, Ch., Coccorese, D., Cocilovo, V., De Meis, D., Di Maio, P.A., Dongiovanni, D., Frosi, P., Di Gironimo, G., Garitta, S., Mariano, G., Marzullo, D., Porfiri, M.T., Ramogida, G., Vallone, E., Villari, R., and Zucchetti, M.

Subjects
Engineering, Design activities, Neutronic, 01 natural sciences, 7. Clean energy, 010305 fluids & plasmas, Thermal hydraulics, Materials Science(all), 0103 physical sciences, Neutronics, General Materials Science, 010306 general physics, DEMO, Settore ING-IND/19 - Impianti Nucleari, Civil and Structural Engineering, Focus (computing), business.industry, Divertor, Mechanical Engineering, Divertor cassette, Cooling, Thermohydraulics, Electromagnetic loads, Thermohydraulic, Nuclear Energy and Engineering, DEMO, Divertor cassette, Neutronics, Cooling, Thermohydraulics, Electromagnetic loads, Systems engineering, Load analysis, Materials Science (all), business
Abstract

Since 2014 preconceptual design activities for European DEMO divertor have been conducted as an integrated, interdisciplinary R&D effort in the framework of EUROfusion Consortium. Consisting of two subproject areas, ‘Cassette’ and ‘Target’, this divertor project has the objective to deliver a holistic preconceptual design concept together with the key technological solutions to materialize the design. In this paper, a brief overview on the recent results from the subproject ‘Cassette’ is presented. In this subproject, the overall cassette system is engineered based on the load analysis and specification. The preliminary studies covered multi-physical analyses of neutronic, thermal, hydraulic, electromagnetic and structural loads. In this paper, focus is put on the neutronics, thermohydraulics and electromagnetic analysis.

Published
2017

47. Nuclear Analyses for the Assessment of the Loads on the ITER Radial Neutron Camera In-Port System and Evaluation of Its Measurement Performances

Author

Fabio Moro, Daniele Marocco, Francesco Belli, Giorgio Brolatti, Andrea Colangeli, Fabio Crescenzi, Davide Flammini, Nicola Fonnesu, Giada Gandolfo, Ryszard Kantor, Giovanni Mariano, Domenico Marzullo, Salvatore Podda, Dustin Sancristobal, Rosaria Villari, Basilio Esposito, Moro, F, Marocco, D, Belli, F, Brolatti, G, Colangeli, A, Crescenzi, F, Flammini, D, Fonnesu, N, Gandolfo, G, Kantor, R, Mariano, G, Marzullo, D, Podda, S, Sancristobal, D, Villari, R, and Esposito, B

Subjects
neutron diagnostics, radial neutron camera (RNC), Nuclear and High Energy Physics, Collimators, Neutron, Plug, Plasma, Plugs, Collimator, ITER, MCNP, neutron measurement, Heating system, Neutrons, Detector, Monte Carlo methods, Detectors, Heating systems, Condensed Matter Physics, Plasmas, Solid modeling, neutron measurements, radiation transport, Monte Carlo method, neutron diagnostic
Abstract

The radial neutron camera (RNC) is a key ITER diagnostic system designed to measure the uncollided 14- and 2.5-MeV neutrons from deuterium-tritium (DT) and deuterium-deuterium (DD) fusion reactions, through an array of detectors covering a full poloidal plasma section along collimated lines of sight (LoS). Its main objective is the assessment of the neutron emissivity/alpha source profile and the total neutron source strength, providing spatially resolved measurements of several parameters needed for fusion power estimation, plasma control, and plasma physics studies. The present RNC layout is composed of two fan-shaped collimating structures viewing the plasma radially through vertical slots in the diagnostic shielding module (DSM) of ITER Equatorial Port 1 (EP01): the ex-port subsystem and the in-port one. The ex-port subsystem, devoted to the plasma core coverage, extends from the Port Interspace to the Bioshield Plug: it consists of a massive shielding unit hosting two sets of collimators lying on different toroidal planes, leading to a total of 16 interleaved LoS. The in-port system consists of a cassette, integrated inside the port plug DSM, containing two detectors per each of the six LoS looking at the plasma edges. The in-port system must guarantee the required measurement performances in critical operating conditions in terms of high radiation levels, given its proximity to the plasma neutron source. This article presents an updated neutronic analysis based on the latest design of the in-port system and port plug. It has been performed by means of the Monte Carlo MCNP code and provides nuclear loads on the in-port RNC during normal operating conditions (NOC) and inputs for the measurement performance analysis.

Published
2022

48. Progress of Design and Development for the ITER Radial Neutron Camera

Author

B. Esposito, D. Marocco, G. Gandolfo, F. Belli, L. Bertalot, J. Blocki, D. Bocian, G. Brolatti, M. Cecconello, C. Centioli, R. C. Pereira, S. Conroy, F. Crescenzi, N. Cruz, L. de Bilbao, A. Domenicone, Q. Ducasse, G. Di Mambro, D. Dongiovanni, I. Eletxigerra, B. Etxeita, A. Fernandez, O. Ficker, P. Gallina, T. Giacomin, G. Ginoulhiac, J. Godlewski, A. Hjalmarsson, M. Imrisek, R. Kantor, K. Kasprzak, J. Kotula, V. Krasilnikov, M. Lewandowska, A. Maffucci, U. Marotta, D. Marzullo, G. Mazzitelli, G. Mazzone, R. Miklaszewski, K. Mikszuta-Michalik, W. Maciocha, S. Magagnino, M. Misano, J. Mlynar, C. Monti, F. Moro, R. Ortwein, M. Passeri, T. Pinna, E. Pirovano, V. Pisciotta, F. Pompili, S. Podda, M. Riva, B. Santos, J. Sousa, J. Swierblewski, P. Szklarz, A. Tatí, S. Ventre, F. Villone, N. Virgili, A. Zimbal, Esposito, B., Marocco, D., Gandolfo, G., Belli, F., Bertalot, L., Blocki, J., Bocian, D., Brolatti, G., Cecconello, M., Centioli, C., Pereira, R. C., Conroy, S., Crescenzi, F., Cruz, N., de Bilbao, L., Domenicone, A., Ducasse, Q., Di Mambro, G., Dongiovanni, D., Eletxigerra, I., Etxeita, B., Fernandez, A., Ficker, O., Gallina, P., Giacomin, T., Ginoulhiac, G., Godlewski, J., Hjalmarsson, A., Imrisek, M., Kantor, R., Kasprzak, K., Kotula, J., Krasilnikov, V., Lewandowska, M., Maffucci, A., Marotta, U., Marzullo, D., Mazzitelli, G., Mazzone, G., Miklaszewski, R., Mikszuta-Michalik, K., Maciocha, W., Magagnino, S., Misano, M., Mlynar, J., Monti, C., Moro, F., Ortwein, R., Passeri, M., Pinna, T., Pirovano, E., Pisciotta, V., Pompili, F., Podda, S., Riva, M., Santos, B., Sousa, J., Swierblewski, J., Szklarz, P., Tati, A., Ventre, S., Villone, F., Virgili, N., and Zimbal, A.

Subjects
Nuclear and High Energy Physics, Fusion, plasma och rymdfysik, Nuclear Energy and Engineering, Neutron detector, ITER, Neutron camera, Fusion, Plasma and Space Physics, Tomography, ITER, Neutron camera, Neutron detector, Tomography, Neutron detector, Neutron camera, Tomography, ITER
Abstract

The paper presents an overview of the design status of the Radial Neutron Camera (RNC), that, together with the Vertical Neutron Camera, will provide, through reconstruction techniques applied to the measured line-integrated neutron fluxes, the time resolved measurement of the ITER neutron and α-source profile (i.e. neutron emissivity, neutrons emitted per unit time and volume). The RNC is composed of two subsystems, the In-Port RNC and Ex-Port RNC located, respectively, inside and outside the Plug of Equatorial Port #01. The In-Port subsystem is in a more advanced design stage since it has recently undergone the Final Design Review in the ITER procurement process. The paper describes the diagnostic layout, the interfaces, the measurement capabilities and the main challenges in its realization. Prototyping and testing of neutron detectors and electronics components were carried out and led to the choice of the component solutions that can match the environmental and operational constraints in terms radiation hardness, high temperature and electromagnetic compatibility. The performance of the RNC in terms of neutron emissivity measurement capability was assessed through 1D and 2D reconstruction analysis. It is proven that the neutron emissivity can be reconstructed in real-time within the measurement requirements: 10% accuracy, 10 ms time resolution and a/10 (a = plasma minor radius) space resolution.

Published
2022

49. Virtual Prototyping and FEM Analysis of the Crystal Eye Detector

Author

Felicia Barbato, Giancarlo Barbarino, Domenico Marzullo, Stefano Papa, F. Renno, Renno, F., Papa, S., Marzullo, D., Barbato, F. C. T., and Barbarino, G.

Subjects
Crystal, FEM, Materials science, Vibration and thermal analysi, Detector, Virtual prototyping, Mechanical engineering, Finite element method
Abstract

The main aim of this article is to describe the design of a new sensor to study the electromagnetic field portions of gravitational waves. On August 17, 2017, the observation of the gravitational wave event started the era of multi-messenger astronomy. Therefore, new tools and optimal synchronization of the available telescopes are needed. The sensor that is designed is a cross-cutting technology, it is named Crystal Eye: a wide field of view in the energy field from 10 keV to 10 meV with a structure made of pixels. As the detector will be involved in the mission in 2023, the virtual prototype phase needed for optimization and production of the payload has been completed. Particular attention was paid to the results of the FEM analysis carried out to examine and predict the thermal and vibration behavior of the conceived mock-up during the launch phase and under strong temperature variations in the space environment.

Published
2022

50. Requirements Engineering in Complex Systems Design

Author

Rocco Mozzillo, Antonio Lanzotti, Andrea Tarallo, Giuseppe Di Gironimo, D. Marzullo, Marzullo, D., Di Gironimo, G., Lanzotti, A., Mozzillo, R., Tarallo, A., and Rizzi C., Campana F., Bici M., Gherardini F., Ingrassia T., Cicconi P.

Subjects
Requirements Engineering, Engineering, Systems Engineering, SMART Require-ments, ITER tokamak, Requirements engineering, SMART Require-ment, business.industry, Complex system, Systems engineering, business, SMART requirement
Abstract

The realization of nuclear fusion reaction as energy source is under investigation, among the scientific community, through the design and development of tokamak reactors. Among the several experiments worldwide, the ITER project is the ma-jor international experiment and it involves several research institutes from sev-eral countries. In such a project, a Systems Engineering (SE) approach is re-quested to organize and manage the design due to its highly integrated design, the safety requirements related to nuclear aspects and the complex procurement scheme. The SE discipline focuses the attention on the requirements which are crucial for every successful project, defining what the stakeholders want from a potential new system, namely what the system must do to satisfy stakeholders need. Correctly stating WHAT is needed for the system, it is possible to obtain its conceptual design (HOW) as much as possible complying the requirements. The incorrect definition of requirements often leads to the failing of a project. Stakeholders’ needs are written in Natural Language that is generally ambiguous, imprecise, incomplete and redundant. Their transformation into SMART require-ments is crucial to avoid design failure. However, it requires a great expertise, unless a specific procedure is assessed. To this end, this work presents a specific procedure based on “like-mind” processes to make systematic the SMART re-quirements definition and assessment from stakeholders needs. The procedure is based on a demand/response framework and it is developed to obtain ITER re-quirements. However, it can be easily extended to every project using its own specifications. A specific case study on ITER Remote Handling is presented in this paper as example of the conceived requirements transformation procedure.

Published
2021

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