Levitation and guidance force efficiencies of bulk YBCO for different permanent magnetic guideways
Küçük Resim Yok
Tarih
2015
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The development of superconductor Maglev systems depends on various disciplinary studies due to the inherent composition of available technologies. Because the fabrication cost is very effective on the Maglev, the requirement of the efficiency improvement focuses the researchers on the design considerations. In this study, the guidance force, the magnetic levitation force (MLF) and magnetic stiffness of different permanent magnetic guideway (PMG) arrangements were investigated in different cooling heights (CH) to enhance the efficiency of Maglev system. The single domain cylindrical bulk YBCO superconductors fabricated by top seeding method with the diameter of 45 mm and the height of 15 mm were used as HTS. Magnetic field distributions of the PMGs were calculated by finite element method to determine optimum HTS-PMG arrangements. We have used auxiliary onboard permanent magnets with YBCOs to improve the MLF of three pole Halbach PMG arrangements. It is seen that the efficiency of Maglev systems can be improved by using suitable HTS-PMG arrangements. In this study cost efficiency of the integrated levitation and guidance force ((Fz)max(Fx)max/(SPMG ? Cost)) was also determined. It is inferred from this study that the cooling height and PMG-HTS arrangement are key parameters for guidance force, levitation force, magnetic stiffness and efficiency of Maglev systems. It is believed that this study will supply useful references for practical application of HTS Maglev systems. © 2015 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
High-Tc superconductors, Levitation force, Maglev, Permanent magnetic guideway, Cooling systems, Costs, Efficiency, Finite element method, Guideways, Magnetic devices, Magnetic levitation vehicles, Magnetism, Permanent magnets, Stiffness, Superconducting materials, Yttrium barium copper oxides, Design considerations, Efficiency improvement, High-T, Levitation force, Maglev, Magnetic field distribution, Magnetic levitation force, Permanent magnetic guideway, Magnetic levitation, High-Tc superconductors, Levitation force, Maglev, Permanent magnetic guideway, Cooling systems, Costs, Efficiency, Finite element method, Guideways, Magnetic devices, Magnetic levitation vehicles, Magnetism, Permanent magnets, Stiffness, Superconducting materials, Yttrium barium copper oxides, Design considerations, Efficiency improvement, High-T, Levitation force, Maglev, Magnetic field distribution, Magnetic levitation force, Permanent magnetic guideway, Magnetic levitation
Kaynak
Journal of Alloys and Compounds
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
630
