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Development of a Tree-shaped Wind Power System Using Piezo-electric Materials  

Oh, Seung-Jin (Dept. of Nuclear & Energy Engineering, Cheju National University)
Han, Hyun-Joo (Dept. of Architectural Engineering, Kyung Hee University)
Han, Soo-Bin (Korea Institute of Energy Research)
Lim, Sang-Hoon (Korea Institute of Energy Research)
Chun, Won-Gee (Dept. of Nuclear & Energy Engineering, Cheju National University)
Publication Information
Journal of the Korean Solar Energy Society / v.28, no.3, 2008 , pp. 53-59 More about this Journal
Abstract
This paper reports an experimental investigation to design a tree-shaped wind power system using piezo-electric materials. The proposed system is to produce power if wind is strong enough to produce any bending motions in the energy converting elements, i.e., piezo-electric materials. Two different kinds of piezoelectric materials are used in the present study to produce power by scavenging energy from the wind. The soft flexible one made the leaf element while the hard one was applied to the trunk portion of the tree requiring rather strong winds to generate any power. Although small, each leaf deems to play the role of a power producer and currents are continuously trickling down to the storage battery installed at the bottom of the system.
Keywords
Energy harvesting; Piezo ceramics; PZT; PVDF; Wind power system;
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