標題: A Magnetic/Piezoelectric-Based Thermal Energy Harvester
作者: Chung, Tien-Kan
Shukla, Ujjwal
Tseng, Chia-Yuan
Chen, Chin-Chung
Wang, Chieh-Min
機械工程學系
Department of Mechanical Engineering
關鍵字: Energy Harvester;Power Generator;Piezoelectric;Magnetic;Thermomagnetic;Temperature;Thermal
公開日期: 2013
摘要: In this paper, we demonstrate a non-contact magnetic/piezoelectric-based thermal energy harvester utilizing an optimized thermal-convection mechanism to enhance the heat transfer in the energy harvesting/converting process in order to increase the power output. The harvester consists of a CuBe spring, Gadolinium soft magnet, NdFeB hard magnets, frame, and piezoelectric PZT cantilever beams. According to the configuration, the energy harvesting/converting process under a temperature-difference is cyclic. Thus, the piezoelectric beams continuously oscillate and subsequently produce voltage responses due to the piezoelectric effect. The maximum voltage response of the harvester under a temperature-difference of 25 degrees C is 16.6 mV with a cycling frequency of 0.58 Hz. In addition, we compare the testing result of the harvester utilizing the new thermal-convection mechanism reported in this paper and using previous thermal-convection mechanism reported elsewhere. According to the comparison, the results show the harvester utilizing the new thermal-convection mechanism has a higher cycling frequency resulting in a higher power output than the previous mechanism.
URI: http://hdl.handle.net/11536/22647
http://dx.doi.org/10.1117/12.2009434
ISBN: 978-0-8194-9471-9
ISSN: 0277-786X
DOI: 10.1117/12.2009434
期刊: ACTIVE AND PASSIVE SMART STRUCTURES AND INTEGRATED SYSTEMS 2013
Volume: 8688
顯示於類別:會議論文


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