- Title
- Investigation of Hydrokinetic Tidal Energy Harvesting Using a Mangrove-Inspired Device
- Creator
- Zanganeh, Jafar; Gwynne, Kiva; Peng, Zhengbiao; Moghtaderi, Behdad
- Relation
- Sustainability Vol. 15, Issue 22, no. 15886
- Publisher Link
- http://dx.doi.org/10.3390/su152215886
- Publisher
- MDPI AG
- Resource Type
- journal article
- Date
- 2023
- Description
- There is a trend towards harvesting tidal energy in shallow water. This study examined how tidal energy can be harvested using a device of oscillating cylinders inspired by the roots of mangroves. A specific focus was placed on optimising the configuration of these devices, informed by the computational fluid dynamics (CFD) analysis of wake interference in the von Kármán vortex street of the cylinders. A maximum efficiency of 13.54% was achieved at a peak voltage of 16 mV, corresponding to an electrical power output of 0.0199 mW (13.5% of the hydrokinetic energy of the water) and a power density of 7.2 mW/m2 for a flow velocity of 0.04 m/s (Re=239). The configuration of upstream cylinders proved to have a significant impact on the power generation capacity, corroborated further in CFD simulations. The effect of wake interference was non-trivial on the magnitude and quality of power, with tandem arrangements showing the largest impact followed by staggered arrangements. Though with comparatively low energy densities, the device’s efficiencies found in this study indicate a great potential to harvest tidal energy in shallow water, which provides a consistent baseload power to supplement intermittent renewables (e.g., solar and wind).
- Subject
- tidal energy; energy harvesting in shallow waters; renewable energy; mangroves; wake interference; intermittent renewables
- Identifier
- http://hdl.handle.net/1959.13/1500589
- Identifier
- uon:54967
- Identifier
- ISSN:2071-1050
- Rights
- © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
- Language
- eng
- Full Text
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