IFE Brage (Institute for Energy Technology)
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997 research outputs found
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A blockchain-based evaluation approach to analyse customer satisfaction using AI techniques
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Structural and magnetic properties of antifluorite-type Li<inf>5+x</inf>Fe<inf>1−x</inf>Co<inf>x</inf>O<inf>4</inf>
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Design of a Power-Dense Aviation Motor With a Low-Loss Superconducting Slotted Armature
Get PDFThis article describes the design and analysis of a 2.5-MW, 5000-rpm electric motor with a slotted armature employing REBCO high-temperature superconductors (HTS). The alternating current and field in the armature induces AC losses in the superconductors, requiring cryogenic cooling. Therefore, the aim is to design a machine with sufficiently low losses to make this cooling realistic, which simultaneously outperforms the state-of-the-art. The reasoning behind the key design choices is presented before the model used for two-dimensional (2-D) finite element analysis (FEA) is described. Then, HTS AC losses are studied with the T-A-formulation, examining the impact of various operating conditions. Aligning the HTS tapes with the field was found to successfully reduce AC losses, while filamentization was only successful for more than 10 filaments. The final design had an active torque density of 50.9 Nm/kg and an estimated efficiency of 99.8% when the HTS are operated at 40 K.Design of a Power-Dense Aviation Motor With a Low-Loss Superconducting Slotted ArmaturepublishedVersio
The role of anionic processes in Li1−xNi0.44Mn1.56O4 studied by resonant inelastic X-ray scattering
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Task grouping and optimized deep learning based VM sizing for hosting containers as a service
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Tracking Lithiation of Si-Based Anodes in Real Time by Total Scattering Computed Tomography
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