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Characterisation Of High Temperature Superconducting Coils, Christopher David Cook, Sarath Perera, Thomas Hardjono
Characterisation Of High Temperature Superconducting Coils, Christopher David Cook, Sarath Perera, Thomas Hardjono
Faculty of Informatics - Papers (Archive)
Some power engineering systems, such as efficient energy storage for power quality improvement, can be potentially made more efficient if implemented with large coils made of high temperature superconductors (HTS). However, the losses of HTS coils carrying AC current limit their usage in practical applications. It has been shown previously that a thin pancake coil with relatively large diameter can be modelled as straight tapes arranged in a face-to-face stack. This paper reviews those results. In addition, measurements on a more realistic larger HTS coil were carried out. It is shown that the model assumptions provide less accurate results for …
Design Of A High Temperature Superconductor Magnetic Energy Storage Systems, R L Causley, Christopher David Cook, Steve Gower
Design Of A High Temperature Superconductor Magnetic Energy Storage Systems, R L Causley, Christopher David Cook, Steve Gower
Faculty of Informatics - Papers (Archive)
The University of Wollongong (UoW) has received funding for the research and development of a 20 kJ high temperature superconducting magnetic energy storage device (HTS SMES). This SMES will be operated at 25 K in contrast to most existing HTS designs, which operate at 77K. This paper includes a literature review of the current technology for the configuration of the SMES coil and a summary of the work done at UoW to date. Solenoidal and toroidal coils designs are compared to determine which will provide the required level of energy stored for a minimum superconductor and device volume. The design …
Thermal Diffusivity Of Iron At High Temperature In Both The Liquid And Solid States, Brian J. Monaghan, P N Quested
Thermal Diffusivity Of Iron At High Temperature In Both The Liquid And Solid States, Brian J. Monaghan, P N Quested
Faculty of Engineering - Papers (Archive)
Process models that simulate industrial processes are increasingly being used to reduce costs and improve productivity. 1–8) The success of such models is highly dependent on the thermophysical property data used in the simulation calculations. Unfortunately high temperature thermophysical data for liquid metals and slags are scarce. Also what data that are available often have a high uncertainty associated with them.1,2,9–11) Therefore regardless of how well a process model may be physically based it is likely, given the current state of high temperature thermophysical property data, in particular heat capacity, viscosity and thermal conductivity/ diffusivity, that the models predictions will …