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Energies 2012, 5(9), 3450-3464; doi:10.3390/en5093450
Article

Feasibility Study of Micro-Wind Turbines for Powering Wireless Sensors on a Cable-Stayed Bridge

1
,
1,* , 2
 and
Jr. 2
1 Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea 2 Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana and Champaign, IL 61801, USA
* Author to whom correspondence should be addressed.
Received: 15 June 2012 / Revised: 3 August 2012 / Accepted: 27 August 2012 / Published: 6 September 2012
(This article belongs to the Special Issue Wind Turbines)
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Abstract

In this study, the feasibility of using micro-wind turbines to power wireless sensors on a cable-stayed bridge is comprehensively investigated. To this end, the wind environment around a bridge onto which a turbine is installed is examined, as is the power consumption of a wireless sensor. Feasible alternators and rotors are then carefully selected to make an effective small wind generator (known as a micro-wind turbine). Using the three specially selected micro-wind turbines, a series of experiments was conducted to find the turbine best able to generate the largest amount of power. Finally, a horizontal-axis micro-wind turbine with a six-blade rotor was combined with a wireless sensor to validate experimentally its actual power-charging capability. It is demonstrated that the micro-wind turbine can generate sufficient electricity to power a wireless sensor under moderate wind conditions.
Keywords: micro-wind turbine; wind power; wireless sensor; structural health monitoring; energy harvesting; wind energy micro-wind turbine; wind power; wireless sensor; structural health monitoring; energy harvesting; wind energy
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Park, J.-W.; Jung, H.-J.; Jo, H.; Spencer, B.F., Jr. Feasibility Study of Micro-Wind Turbines for Powering Wireless Sensors on a Cable-Stayed Bridge. Energies 2012, 5, 3450-3464.

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