Ac Losses In High Temperature Superconductor Tapes And Cables For Power Applications
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Ac Losses In High Temperature Superconductor Tapes And Cables For Power Applications
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Author : Godfrin, Aurélien
language : en
Publisher: KIT Scientific Publishing
Release Date : 2022-05-10
Ac Losses In High Temperature Superconductor Tapes And Cables For Power Applications written by Godfrin, Aurélien and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-05-10 with Technology & Engineering categories.
This work focuses on two topics. The first is the investigation of producing filaments on copper-stabilized coated conductors, with striations made after or before electroplating the tape. The second topic is the applicability of the striations for reducing the AC losses of cables, in particular the CORC® and RACC cables, which are made with high-temperature superconductor (HTS) striated tapes.
High Temperature Superconductors Hts For Energy Applications
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Author : Ziad Melhem
language : en
Publisher: Elsevier
Release Date : 2011-12-21
High Temperature Superconductors Hts For Energy Applications written by Ziad Melhem and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-12-21 with Technology & Engineering categories.
High temperature superconductors (HTS) offer many advantages through their application in electrical systems, including high efficiency performance and high throughput with low-electrical losses. While cryogenic cooling and precision materials manufacture is required to achieve this goal, cost reductions without significant performance loss are being achieved through the advanced design and development of HTS wires, cables and magnets, along with improvements in manufacturing methods. This book explores the fundamental principles, design and development of HTS materials and their practical applications in energy systems. Part one describes the fundamental science, engineering and development of particular HTS components such as wires and tapes, cables, coils and magnets and discusses the cryogenics and electromagnetic modelling of HTS systems and materials. Part two reviews the types of energy applications that HTS materials are used in, including fault current limiters, power cables and energy storage, as well as their application in rotating machinery for improved electrical efficiencies, and in fusion technologies and accelerator systems where HTS magnets are becoming essential enabling technologies. With its distinguished editor and international team of expert contributors, High temperature superconductors (HTS) for energy applications is an invaluable reference tool for anyone involved or interested in HTS materials and their application in energy systems, including materials scientists and electrical engineers, energy consultants, HTS materials manufacturers and designers, and researchers and academics in this field. Discusses fundamental issues and developments of particular HTS components Comprehensively reviews the design and development of HTS materials and then applications in energy systems Reviews the use of HTS materials and cabling transmissions, fault alignment limiters, energy storage, generators and motors, fusion and accelerator
High Temperature Superconducting Conductors And Cables
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Author :
language : en
Publisher:
Release Date : 1996
High Temperature Superconducting Conductors And Cables written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
This is the final report of a 3-year LDRD project at LANL. High-temperature superconductivity (HTS) promises more efficient and powerful electrical devices such as motors, generators, and power transmission cables; however this depends on developing HTS conductors that sustain high current densities J{sub c} in high magnetic fields at temperatures near liq. N2's bp. Our early work concentrated on Cu oxides but at present, long wire and tape conductors can be best made from BSCCO compounds with high J{sub c} at low temperatures, but which are degraded severely at temperatures of interest. This problem is associated with thermally activated motion of magnetic flux lines in BSCCO. Reducing these dc losses at higher temperatures will require a high density of microscopic defects that will pin flux lines and inhibit their motion. Recently it was shown that optimum defects can be produced by small tracks formed by passage of energetic heavy ions. Such defects result when Bi is bombarded with high energy protons. The longer range of protons in matter suggests the possibility of application to tape conductors. AC losses are a major limitation in many applications of superconductivity such as power transmission. The improved pinning of flux lines reduces ac losses, but optimization also involves other factors. Measuring and characterizing these losses with respect to material parameters and conductor design is essential to successful development of ac devices.
Superconductors In The Power Grid
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Author : C. Rey
language : en
Publisher: Elsevier
Release Date : 2015-04-20
Superconductors In The Power Grid written by C. Rey and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-04-20 with Technology & Engineering categories.
Superconductors offer high throughput with low electric losses and have the potential to transform the electric power grid. Transmission networks incorporating cables of this type could, for example, deliver more power and enable substantial energy savings. Superconductors in the Power Grid: Materials and Applications provides an overview of superconductors and their applications in power grids. Sections address the design and engineering of cable systems and fault current limiters and other emerging applications for superconductors in the power grid, as well as case studies of industrial applications of superconductors in the power grid. Expert editor from highly respected US government-funded research centre Unique focus on superconductors in the power grid Comprehensive coverage
Ac Losses Of Prototype Hts Transmission Cables
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Author :
language : en
Publisher:
Release Date : 1998
Ac Losses Of Prototype Hts Transmission Cables written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
Since 1995 Southwire Company and Oak Ridge National Laboratory (ORNL) have jointly designed, built, and tested nine, l-m long, high temperature superconducting (HTS) transmission cable prototypes. This paper summarizes the AC loss measurements of five of the cables not reported elsewhere, and compares the losses with each other and with theory developed by Dresner. Losses were measured with both a calorimetric and an electrical technique. Because of the broad resistive transition of the HTS tapes, the cables can be operated stably beyond their critical currents. The AC losses were measured in this region as well as below critical currents. Dresner's theory takes into account the broad resistive transition of the HTS tapes and calculates the AC losses both below and above the critical current. The two sets of AC 10SS data agree with each other and with the theory quite welL In particular, at low currents of incomplete penetration, the loss data agree with the theoretical prediction of hysteresis loss based on only the outer two Iayers carrying the total current.
Advances In Interdisciplinary Engineering
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Author : Niraj Kumar
language : en
Publisher: Springer Nature
Release Date : 2021-04-12
Advances In Interdisciplinary Engineering written by Niraj Kumar and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-12 with Technology & Engineering categories.
This book comprises the select proceedings of the International Conference on Future Learning Aspects of Mechanical Engineering (FLAME) 2020. This volume focuses on several emerging interdisciplinary areas involving mechanical engineering. Some of the topics covered include automobile engineering, mechatronics, applied mechanics, structural mechanics, hydraulic mechanics, human vibration, biomechanics, biomedical Instrumentation, ergonomics, biodynamic modeling, nuclear engineering, and agriculture engineering. The contents of this book will be useful for students, researchers as well as professionals interested in interdisciplinary topics of mechanical engineering.
Applications Of High Temperature Superconductors To Electric Power Equipment
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Author : Swarn S. Kalsi
language : en
Publisher: John Wiley & Sons
Release Date : 2011-04-18
Applications Of High Temperature Superconductors To Electric Power Equipment written by Swarn S. Kalsi and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-04-18 with Technology & Engineering categories.
The only one-stop reference to design, analysis, and manufacturing concepts for power devices utilizing HTS. High temperature superconductors (HTS) have been used for building many devices for electric grids worldwide and for large ship propulsion motors for the U.S. Navy. And yet, there has been no single source discussing theory and design issues relating to power applications of HTS—until now. This book provides design and analysis for various devices and includes examples of devices built over the last decade. Starting with a complete overview of HTS, the subsequent chapters are dedicated to specific devices: cooling and thermal insulation systems; rotating AC and DC machines; transformers; fault current limiters; power cables; and Maglev transport. As applicable, each chapter provides a history of the device, principles, configuration, design and design challenges, prototypes, and manufacturing issues, with each ending with a summary of the material covered. The design analysis and design examples provide critical insight for readers to successfully design their own devices. Original equipment manufacturer (OEM) designers, industry and utilities users, universities and defense services research groups, and senior/postgraduate engineering students and instructors will rely on this resource. "HTS technology reduces electric losses and increases the efficiency of power equipment. This book by Swarn Kalsi, a leading expert on the HTS subject, provides a survey of the HTS technology and the design rules, performance analyses, and manufacturing concepts for power application-related devices. It compares conventional and HTS technology approaches for device design and provides significant examples of devices utilizing the HTS technology today. The book is useful for a broad spectrum of professionals worldwide: students, teaching staff, and OEM designers as well as users in industry and electric utilities." —Professor Dr. Rolf Hellinger, Research and Technologies Corporate Technology, Siemens AG
Handbook Of Applied Superconductivity Volume 2
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Author : B Seeber
language : en
Publisher: CRC Press
Release Date : 1998-01-01
Handbook Of Applied Superconductivity Volume 2 written by B Seeber and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-01-01 with Technology & Engineering categories.
The Handbook of Applied Superconductivity, Two-Volume Set covers all important aspects of applied superconductivity and the supporting low-temperature technologies. The handbook clearly demonstrates the capabilities of superconducting technologies and illustrates how to implement these technologies in new areas of academic and industrial research and development. Volume One provides an introduction to the theoretical background of both low and high Tc superconductivity, followed by details of the basic hardware such as wires, tapes, and cables used in applications of superconductivity and the necessary supporting science and technology. Theoretical discussions are in most cases followed by examples of real designs, fabrication techniques, and practical instrumentation guidance. A final chapter examines materials properties at low temperatures. Volume Two provides examples of current and future applications of superconductivity. It covers medical systems for magnetic resonance imaging (MRI), high field magnets for research, superconducting magnets for accelerators, industrial systems for magnetic separation, and transportation systems. The final chapters look to future applications in power and superconducting electronics. With fully referenced, peer-refereed contributions from experts in various fields, this two-volume work is an essential reference for a wide range of scientists and engineers in academic and industrial research and development environments.
Prospective Life Cycle Assessment Of High Temperature Superconductors For Future Grid Applications
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Author : Buchholz, Alexander
language : en
Publisher: KIT Scientific Publishing
Release Date : 2022-07-27
Prospective Life Cycle Assessment Of High Temperature Superconductors For Future Grid Applications written by Buchholz, Alexander and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-07-27 with Technology & Engineering categories.
High-temperature superconductors have distinct advantages compared to conventional conductors. Below their critical temperature, superconductors have immeasurably low ohmic losses. To maintain the superconducting state, superconductors require constant cooling. This study aims at identifying the environmental impacts of the application of superconductors in future grid technologies such as superconducting power cables.
Alternating Current Losses In Ag Sheathed Bscco 2212 And 2223 Tapes And Wires And Ybco 123 Coated Conductors
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Author :
language : en
Publisher:
Release Date : 2000
Alternating Current Losses In Ag Sheathed Bscco 2212 And 2223 Tapes And Wires And Ybco 123 Coated Conductors written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
In this study, we focus on the examination of ac losses in conductors utilizing Bi2Sr2Ca2Cu3O [BSCCO (2223)] high TC superconductors (HTS). In addition, we seek to assist other facilities such as the University of Wisconsin-Madison Applied Superconductivity Center (UW-ASC), Brookhaven National Laboratory, and other DoE facilities investigating the use of HTS in electric power applications (e.g., generators, motors, and transformers). To accomplish this we will develop an ac losses capability at Clark Atlanta University to complement the established ac losses efforts at Brookhaven National Laboratory (BSCCO) on BSCCO/Ag and various material characterization efforts taking place at the UW-ASC. Our goal is through this effort to gain a greater understanding of the effects on ac losses due to parameters such as ac/dc current, J{sub c}, tape geometry, voltage tap placement, field orientation, material anisotropy, surface irregularities, percolations and filament coupling effects. As a result, we expect to better understand how to minimize ac losses in applications requiring real or practical conductors. HTS conductors based on BSCCO-2223 are now being routinely produced in industrial lengths of high quality. Vendors such as Southwire and ASC are producing multi-filamentary tapes in lengths of 6 km or more carrying critical current densities of up to 3 kA/cm**2 at 77 K. While this is approaching the level of performance where some large-scale applications are considered to be economically viable, a number of problems remain to be solved. The remaining issues include: rapid reduction in JC in magnetic fields; and power dissipation due to varying magnetic fields or currents (ac losses).