A low frequency hybrid harvester with ring magnets

Mohammad Dhia Salim and Jedol Dayou and Hakim S Sultan Aljibori and Dhia Shaker Mohammed Salim and Akeel Shebeeb (2016) A low frequency hybrid harvester with ring magnets. Sustainable Energy Technologies and Assessments, 13. pp. 23-30. ISSN 2213-1388


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Although many hybrid EH devices had been investigated by researchers, their performances at different operating resonance frequencies were not reported. Radial magnetic field was reported as the most efficient architecture to use in electromagnetic energy conversion, this was utilized in the design of a low frequency and efficient hybrid harvester comprising piezoelectric (PZT) and electromagnetic generators. FE simulation was used to obtain the magnetic field, design the coil and locate its position relative to the magnets. The electromagnetic generator consists of ring magnets which act as proof mass, with a hanging coil inside. The harvester was tested at frequency range of (34-40) Hz, produced maximum power of (710)μW. The maximum normalized power density and maximum efficiency of the harvester are (2.272) mW/cm3/g2 and (30.1%) respectively, at frequency of 36Hz and induced acceleration of (0.25)g. The new hybrid harvester has a higher normalized power density compared with others.

Item Type: Article
Keyword: Electromagnetic harvesters, Hybrid harvesters, MEMS, Ring magnets
Subjects: Q Science > QC Physics
Department: FACULTY > Faculty of Science and Natural Resources
Depositing User: ADMIN ADMIN
Date Deposited: 16 Aug 2016 09:11
Last Modified: 25 Nov 2020 11:21
URI: https://eprints.ums.edu.my/id/eprint/13926

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