Publications by Davide Uglietti

Related publications (47)

Advance in the conceptual design of the European DEMO magnet system

Pierluigi Bruzzone, Rainer Wesche, Kamil Sedlák, Boris Stepanov, Davide Uglietti, Xabier Sarasola Martin, Roberto Guarino, Vincenzo D'Auria, Mithlesh Kumar, Ortensia Dicuonzo, Chiara Frittitta

The European DEMO, i.e. the demonstration fusion power plant designed in the framework of the Roadmap to Fusion Electricity by the EUROfusion Consortium, is approaching the end of the pre-conceptual design phase, to be accomplished with a Gate Review in 20 ...

IOP Publishing Ltd2020

Design Optimization of Round Strands Made by Twisted Stacks of HTS Tapes

Pierluigi Bruzzone, Davide Uglietti, Rainer Wesche

Atwisted stack of high-temperature superconducting (HTS) tapes soldered into copper profiles was used as a strand in the fabrication of the 60-kA/ 12-T HTS cable prototype at the Center for Research in Plasma Physics (CRPP). Considering the strand in gener ...

IEEE Institute of Electrical and Electronics Engineers2016

MgB2 Hollow Wires and Cables Embedded in a Mg Alloy Matrix

Pierluigi Bruzzone, Davide Uglietti

The brittleness of the MgB2 wires prevents performing a cable architecture with very small bending radius, similar to NbTi Rutherford cables. Consequently, it is important to reduce the thickness of the superconducting materials in order to increase its be ...

IEEE Institute of Electrical and Electronics Engineers2013

Hybrid HTS-Nb3Sn-NbTi DEMO CS coil design optimized for maximum magnetic flux generation

Pierluigi Bruzzone, Rainer Wesche, Kamil Sedlák, Davide Uglietti, Xabier Sarasola Martin, Ortensia Dicuonzo

The present work is performed within the framework of the EUROfusion DEMO project. Previously, it was demonstrated that for a maintained magnetic flux the use of HTS conductors at highest magnetic field in a layer-wound CS coil would allow the reduction of ...

ELSEVIER SCIENCE SA2019

Quench Simulation of REBCO Cable-in-Conduit Conductor With Twisted Stacked-Tape Cable

Pierluigi Bruzzone, Rainer Wesche, Kamil Sedlák, Davide Uglietti

Quench protection is a critical issue for magnet using high-temperature superconducting (HTS) materials such as REBCO. For cable-in-conduit conductor (CICC) with twisted REBCO tapes, which is considered for high-current HTS conductor for fusion magnet, the ...

IEEE Institute of Electrical and Electronics Engineers2020

Design and Strand Tests of a Fusion Cable Composed of Coated Conductor Tapes

Pierluigi Bruzzone, Davide Uglietti, Rainer Wesche

The design of a flat cable suitable for future fusion reactors has been carried out. The cable consists of twisted round strands, which are composed of tapes stacked between copper profiles. According to calculations, the strand twist pitch and the cable t ...

IEEE Institute of Electrical and Electronics Engineers2014

Prospects for the use of high-T-c superconductors in fusion magnets and options for their test in SULTAN

Pierluigi Bruzzone, Davide Uglietti, Boris Stepanov, Rainer Wesche, Stephen Alfred March

In the last few years, the critical current densities of long commercially available REBa2Cu3O7-x (RE-123, where RE represents Y or a rare earth element) coated conductors have reached values of 250 A/cm-width at 77K and zero applied field. Even higher val ...

Elsevier Science Sa2013

Upgrade and Commissioning of the SULTAN Facility to Host Quench Experiments on HTS High Current Conductors

Pierluigi Bruzzone, Rainer Wesche, Boris Stepanov, Kamil Sedlák, Davide Uglietti, Ortensia Dicuonzo

High Temperature Superconductors (HTS) are promising materials for future fusion magnets. One of HTS conductors' main issues is the quench protection: the quench develops much slower than in LTS, delaying the quench detection by voltage monitoring and caus ...

IEEE Institute of Electrical and Electronics Engineers2021

LTS and HTS high current conductor development for DEMO

Pierluigi Bruzzone, Kamil Sedlák, Davide Uglietti

The large size of the magnets for DEMO calls for very large operating current in the forced flow conductor. A plain extrapolation from the superconductors in use for ITER is not adequate to fulfill the technical and cost requirements. The proposed DEMO TF ...

Elsevier Science Sa2015

Measurement of Tc distribution in NbSn CICC

Pierluigi Bruzzone, Davide Uglietti, Ciro Calzolaio

Knowledge of the actual Nb3Sn filaments' thermal strain, epsilon(th), in a cable-in-conduit conductor (CICC) is essential to predict the CICC performance in operation starting from the strand scaling laws for the critical current density J(c)(B, T, epsilon ...

SUST 20122012

Development of HTS Conductors for Fusion Magnets

Pierluigi Bruzzone, Davide Uglietti, Rainer Wesche

In view of the development of cables for next-generation fusion reactors, research activities are carried out on all HTS materials available from industrial production. Preliminary design of a react and wind cable using Bi-2212 wires is carried out, inspir ...

IEEE Institute of Electrical and Electronics Engineers2015

The DEMO magnet system - Status and future challenges

Pierluigi Bruzzone, Rainer Wesche, Kamil Sedlák, Davide Uglietti, Roberto Guarino, Mithlesh Kumar, Vincenzo D'Auria, Ortensia Dicuonzo, Chiara Frittitta, Federica Demattè

We present the pre-concept design of the European DEMO Magnet System, which has successfully passed the DEMO plant-level gate review in 2020. The main design input parameters originate from the so-called DEMO 2018 baseline, which was produced using the PRO ...

2022

Statistical analysis of the current-sharing temperature evolution in Nb3Sn cable-in-conduit-conductors for ITER

Pierluigi Bruzzone, Rainer Wesche, Boris Stepanov, Davide Uglietti

During the test of ITER conductors at nominal conditions, a degradation of the current sharing temperature has been observed after electromagnetic cyclic loading. Rather than focusing on the microscopic phenomena at the origin of the degradation, the degra ...

IEEE-Inst Electrical Electronics Engineers Inc2012

Strain Management in HTS High Current Cables

Pierluigi Bruzzone, Davide Uglietti, Rainer Wesche

The best performing HTS conductors are available in the form of thin tapes with operating current in the range of 200 A at the operating conditions. To realize conductors with high current carrying capability, in the range of several tens of kA, a large nu ...

IEEE Institute of Electrical and Electronics Engineers2015

Magnetization loss for stacks of ReBCO tapes

Pierluigi Bruzzone, Davide Uglietti

The AC loss measurements of the high temperature superconductor (HTS) cable prototype in the EDIPO test facility motivated detailed investigations of the loss contributions from the tape, strand and cable stages of the HTS fusion conductor design proposed ...

IOP Publishing Ltd2017

Collective Flux Jumps observed in the Operation of the EDIPO Magnet

Pierluigi Bruzzone, Kamil Sedlák, Davide Uglietti, Boris Stepanov, Rainer Wesche, Stephen Alfred March

The tilted head race track coils of the EDIPO test facility are wound with cable-in-conduit conductors made by high current density Nb3Sn strands, Jc = 2400 A/mm2 at 12 T – 4.2 K. Since the commissioning of the coils, frequent voltage spikes were observed ...

IEEE Institute of Electrical and Electronics Engineers2014

The influence of Ti doping methods on the high field performance of (Nb, Ta, Ti)3Sn multifilamentary wires using Osprey bronze

Philippe Buffat, Marco Cantoni, Davide Uglietti

We have analyzed the influence of the two different Ti doping methods on the superconducting properties of bronze processed (Nb,Ta,Ti)3Sn multifilamentary wires with identical configuration, consisting of a Nb7.5wt.%Ta alloy processed to 14641 filaments of ...

IEEE Institute of Electrical and Electronics Engineers2005

Non-twisted stacks of coated conductors for magnets: Analysis of inductance and AC losses

Rainer Wesche, Davide Uglietti, Francesco Grilli

Almost all present High Temperature Superconducting (HTS) cable designs for magnets are based on twisted or transposed concepts that were developed for Low Temperature Superconducting (LTS) cables. However, requirements for LTS materials (like filament twi ...

2020

Design of a quench protection system for a coated conductor insert coil

Davide Uglietti

Coated conductors are promising material for the construction of high field magnets, but the slow propagation velocity of the normal zone makes the protection against quenches a critical issue. The quench protection system for a small insert coil under dev ...

IEEE-Inst Electrical Electronics Engineers Inc2012

Effect of transverse load on the critical current of a coated conductor Roebel cable

Pierluigi Bruzzone, Davide Uglietti, Rainer Wesche

Roebel cables are one possible option for use in the manufacture of high current conductors for various technical applications. In this work the behaviour of critical current under transverse loads up to 90 MPa was studied in coated conductor Roebel cables ...

IOP Publishing Ltd2013