Autors: Todorov, T. S., Nikolov, N. L., Todorov, G. D., Ralev, Y. I.
Title: Modelling and Investigation of a Hybrid Thermal Energy Harvester
Keywords: Energy harvester, Thermoelectric Genarator, Vibrations

Abstract: The presented paper deals with dynamical and experimental investigations of a hybrid energy harvester containing shape memory alloy (SMA) wire and elastic cantilever with piezoelectric layer. The SMA wire periodically changes its temperature under the influence of a heated plate that approaches and moves away from the SMA wire. The change of SMA wire length causes rotation of the hot plate. The plate is heated by a heater with constant temperature. The repeated SMA wire extensions and contractions bend the piezoelectric cantilever which generates electric charges. The shape memory effect is presented as a temperature approximation of the Young's modulus. A dynamical model of the energy harvester is created and some analytical investigations are presented. With the help of an experimental setup the acceleration, the force, the temperature, and the output voltage have been measured. The theoretical results are validated experimentally.

References

    Issue

    MATEC Web of Conferences, vol. 148, pp. 1-6, 2018, Bulgaria, EDP Sciences, DOI 10.1051/matecconf/201814812002

    Copyright MATEC Web Conf

    Full text of the publication

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    Вид: публикация в международен форум, публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus и Web of Science