An assessment of wind and wave climate as potential sources of renewable energy in the nearshore Shenzhen coastal zone of the South China Sea

Xinping Chen, Kaimin Wang, Zenghai Zhang, Yindong Zeng, Yao Zhang, Kieran O'Driscoll

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Abstract

In this study, nearshore wind and wave climates and their potential as renewable energy sources are evaluated by means of buoy observational data for the Shenzhen coastal region. Six buoys were originally deployed in the region by the city local government of China in 2014, and are located in different areas of the study region, including Dapeng Bay, Daya Bay, Shenzhen Bay. The waters in these areas are relatively shallow, ranging in depth between about 3 and 22 m. The results show that during 2014–2016, annual mean wind speeds (at 2.5 m above the sea surface) in the region varied between 3.1 and 4.1 m s−1, leading to wind powers between 37 and 94 W m−2; significant wave heights were mostly less than 1 m, while wave energy periods were mostly in the range 3− 7 s. As a result, wave power was mostly less than 1.0 kW m−1. It is concluded that the potential of wave energy as a renewable resource at the buoy locations was very small. This may be due to the fact that, first, water depth is very shallow, and, secondly, the buoys are located in bays where the sea is somewhat semi-enclosed, all of which are not favorable for the development of wind waves.
Original languageEnglish
Pages (from-to)789-801
Number of pages13
JournalEnergy
Volume134
Early online date10 Jun 2017
DOIs
Publication statusPublished - 01 Sep 2017

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