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Energies 2013, 6(4), 2191-2203; doi:10.3390/en6042191
Article

Modeling Evaluation of Tidal Stream Energy and the Impacts of Energy Extraction on Hydrodynamics in the Taiwan Strait

1
, 2,*  and 2,3
Received: 7 February 2013; in revised form: 13 April 2013 / Accepted: 14 April 2013 / Published: 18 April 2013
(This article belongs to the Special Issue Energy from the Ocean - Wave and Tidal Energy)
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Abstract: Tidal stream speeds in straits are accelerated because of geographic and bathymetric features. For instance, narrow channels and shallows can cause high tidal stream energy. In this study, water level and tidal current were simulated using a three-dimensional semi-implicit Eulerian-Lagrangian finite-element model to investigate the complex tidal characteristics in the Taiwan Strait and to determine potential locations for harnessing tidal stream energy. The model was driven by nine tidal components (M2, S2, N2, K2, K1, O1, P1, Q1, and M4) at open boundaries. The modeling results were validated with the measured data, including water level and tidal current. Through the model simulations, we found that the highest tidal currents occurred at the Penghu Channel in the Taiwan Strait. The Penghu Channel is an appropriate location for the deployment of a tidal turbine array because of its deep and flat bathymetry. The impacts of energy extraction on hydrodynamics were assessed by considering the momentum sink approach. The simulated results indicate that only minimal impacts would occur on water level and tidal current in the Taiwan Strait if a turbine array (55 turbines) was installed in the Penghu Channel.
Keywords: tidal stream speeds; momentum sink approach; numerical modeling; Taiwan Strait; Penghu Channel tidal stream speeds; momentum sink approach; numerical modeling; Taiwan Strait; Penghu Channel
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Chen, W.-B.; Liu, W.-C.; Hsu, M.-H. Modeling Evaluation of Tidal Stream Energy and the Impacts of Energy Extraction on Hydrodynamics in the Taiwan Strait. Energies 2013, 6, 2191-2203.

AMA Style

Chen W-B, Liu W-C, Hsu M-H. Modeling Evaluation of Tidal Stream Energy and the Impacts of Energy Extraction on Hydrodynamics in the Taiwan Strait. Energies. 2013; 6(4):2191-2203.

Chicago/Turabian Style

Chen, Wei-Bo; Liu, Wen-Cheng; Hsu, Ming-Hsi. 2013. "Modeling Evaluation of Tidal Stream Energy and the Impacts of Energy Extraction on Hydrodynamics in the Taiwan Strait." Energies 6, no. 4: 2191-2203.


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