Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"HTS tape"”.
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The competitive potential of high-temperature superconductors for power transmission
… literature on high-temperature superconducting (HTS) cables and tapes was performed. An analysis of the critical interdependencies between HTS technology and their cost-competitiveness for power transmission are presented. This thesis makes clear that there are technical characteristics unique to …
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A levelized comparison of pulsed and steady-state tokamaks
… developing high-temperature super-conducting (HTS) tape could actually make both steady-state and pulsed tokamaks economically competitive against solar and coal. Further, this HTS tape actually has different best uses for the two modes of operation, appearing in the magnet structures of: TF …
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Stacks of high temperature superconducting tape as trapped field magnets for energy applications
… work investigates the suitability of stacked tape layers of second generation high temperature superconductors (HTS), such as YBa2Cu3O7-x (YBCO) for trapped field applications. The present limits for trapped field magnitude have been determined, which provide a basis for the optimization of …
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Annealing Cryogenically Irradiated High TemperatureSuperconductors with Current Pulses
… from high temperature superconductors (HTS) made of Rare Earth Barium Copper Oxide (REBCO) to confine a thermonuclear grade plasma. The HTS performance must be predictable despite the radiation damage caused by fast neutrons from fusion reactions that damage to the REBCO microstructure, …
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Caracterização de fitas supercondutoras 2G HTS em regime de Flux flow
… Generation High Temperature Superconductor (2G HTS) tapes beyond the Flux Creep regime. Since the value of N is extremely sensitive to the HTS tape temperature, the attention was held for ways to minimize the tape temperature oscillation during V-I measurements. First, a special copper sample …
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Tailoring Superconductor and SOFC Structures for Power Applications
High temperature superconductors (HTS) and solid oxide fuel cells (SOFCs) both offer the possibility for dramatic improvements in efficiency in power applications such as generation, transmission and use of electrical energy. However, production costs and energy losses prohibit widespread adoption …
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Development of REBCO Tapes on Non-Metallic Flexible Substrates for RF Applications
… high-temperature superconductors (2G-HTS) are well developed for direct current (DC) applications. However, alternating current (AC) losses because of eddy currents in Hastelloy dominate at microwave frequencies. This work aims to develop REBCO on inexpensive and non-metallic flexible …
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Quench dynamics and fiber optic quench detection of VIPER high temperature superconductor cable
High temperature superconductors (HTS) enable many high field magnet applications—such as magnetic fusion devices—to operate at superior current densities, temperatures, and fields compared to low temperature superconductor (LTS) based magnets. However, HTS introduces new challenges: slow quench …
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HTS Magnets: Modelling, Charging and Large Scale Applications
The advent of High Temperature Superconductors (HTS) has resulted in increased research into potential industrial applications that best exploit the superconducting behaviour at relatively high cryogenic temperatures. In the superconducting state, HTS have the ability to transmit power with …
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Resistive-type Superconducting Fault Current Limiter (RSFCL) and Its Application in Power Systems
… commercial YBCO samples. We selected ten 2G-HTS tapes with broad differences in width, fabrication process, and laminar structure. The obtained I_c (B,θ) characteristics of HTS samples were applied in the simulation of RSFCLs, showing unneglectable effect on the first peak limiting …
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Low Temperature Solder Demountable Joints for Non-Insulated, High Temperature Superconducting Fusion Magnets
… insulated cable coils. By combining the use of HTS in a non-insulated coil, a highly adaptable geometry presents itself for the inclusion of hundreds of demountable joints between coil turns. The joints have stringent requirements; they must be low resistance to minimize power dissipation, and …
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Study of Second Generation High Temperature Superconductors: Electromagnetic Characteristics and AC Loss Analysis
… loss”. Therefore, the AC loss characteristics of HTS tapes and coils are still fundamentally important for HTS magnet designs, even if they are normally operating in DC conditions. This thesis starts with the AC loss study of HTS tapes. The investigation and comparison of AC losses on Surround …