The experimental validation of a new energy harvesting system based on the wake galloping phenomenon

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In this paper, a new energy harvesting system based on wind energy is investigated. To this end, the characteristics and mechanisms of various aerodynamic instability phenomena are first examined and the most appropriate one (i.e. wake galloping) is selected. Then, a wind tunnel test is carried out in order to understand the occurrence conditions of the wake galloping phenomenon more clearly. Based on the test results, a prototype electromagnetic energy harvesting device is designed and manufactured. The effectiveness of the proposed energy harvesting system is extensively examined via a series of wind tunnel tests with the prototype device. Test results show that electricity of about 370 mW can be generated under a wind speed of 4.5 m s(-1) by the proposed energy harvesting device. The generated power can easily be increased by simply increasing the number of electromagnetic parts in a vibrating structure. Also, the possibility of civil engineering applications is discussed. It is concluded from the test results and discussion that the proposed device is an efficient, economic and reliable energy harvesting system and could be applied to civil engineering structures.
Publisher
IOP PUBLISHING LTD
Issue Date
2011-05
Language
English
Article Type
Article
Citation

SMART MATERIALS STRUCTURES, v.20, no.5

ISSN
0964-1726
URI
http://hdl.handle.net/10203/98250
Appears in Collection
CE-Journal Papers(저널논문)
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