Wave-Driven Energy Harvesting from Frequency-Increasing Floating Structures

Mir Mohammad Ettefagh , Alireza Hesari , Reza Fathi , Sina Akhbari

Journal of Marine Science and Application ›› : 1 -11.

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Journal of Marine Science and Application ›› : 1 -11. DOI: 10.1007/s11804-025-00614-7
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Wave-Driven Energy Harvesting from Frequency-Increasing Floating Structures

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Abstract

This study focuses on wave energy harvesting by leveraging the impact-induced frequency of sea waves. It introduces a novel double-buoyed model based on the existing single-buoyed system to address the shortcomings of previous systems. Notably, the traditional single-buoyed system, which is characterized by a long beam extending to the sea floor, proves impractical in deep-sea environments, especially in distant offshore regions. The proposed double-buoyed model replaces the long beam with a second buoy to increase energy harvesting efficiency. A parametric analysis that included the density and height of the first buoy and wave period was conducted to enhance the proposed model further. Results indicated that with the selection of optimal parameters, the power output of the double-buoyed system increased by approximately 13-fold, thereby enhancing the viability and efficiency of wave energy harvesting.

Keywords

Energy harvesting / Sea wave / Buoy / Piezoelectricity / Impact

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Mir Mohammad Ettefagh, Alireza Hesari, Reza Fathi, Sina Akhbari. Wave-Driven Energy Harvesting from Frequency-Increasing Floating Structures. Journal of Marine Science and Application 1-11 DOI:10.1007/s11804-025-00614-7

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Harbin Engineering University and Springer-Verlag GmbH Germany, part of Springer Nature

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