Rainwater- and air-driven 40 mm bladeless electromagnetic energy harvester
Date of Issue2013
School of Mechanical and Aerospace Engineering
A 40 mm electromagnetic energy harvester driven by both rainwater and air is designed and experimentally tested. Its performance is first assessed by measuring the system response for 4 different levels of air flow excitations. It shows that about 0.5 W power is generated. Parametric analysis is then conducted in terms of the disc number, exhaust flow rates, and the inter-disc distance. Finally, it is used to harness energy from rainwater. It is found the harvester works much better than the air-driven one. And its energy conversion efficiency is reduced with increased disc diameter. The maximum electric current is 4.5 mA.
Applied physics letters
© 2013 AIP Publishing LLC. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of AIP Publishing LLC.The paper can be found at the following official DOI: [http://dx.doi.org/10.1063/1.4813907]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.