Investigation on the Energy Absorption Performance of a Fixed-Bottom Pressure-Differential Wave Energy Converter

Yi-Hsiang Yu; Jochem Weber; Aurelien Babarit; Fabian Wendt

doi:10.1016/j.apor.2017.03.017

Investigation on the Energy Absorption Performance of a Fixed-Bottom Pressure-Differential Wave Energy Converter

Yi-Hsiang Yu, Jochem Weber, Aurelien Babarit, Fabian Wendt

National Wind Technology Center

Ecole Centrale de Nantes

Research output: Contribution to journal › Article › peer-review

25 Scopus Citations

Abstract

In this article, we investigate the energy absorption performance of a fixed-bottom pressure-differential wave energy converter. Two versions of the technology are considered: one has the moving surfaces on the bottom of the air chambers whereas the other has the moving surfaces on the top. We developed numerical models in the frequency domain, thereby enabling the power absorption of the two versions of the device to be assessed. It is observed that the moving surfaces on the top allow for easier tuning of the natural period of the system. Taking into account stroke limitations, the design is optimized. Results indicate that the pressure-differential wave energy converter is a highly efficient technology both with respect to energy absorption and selected economic performance indicators.

Original language	American English
Pages (from-to)	90-101
Number of pages	12
Journal	Applied Ocean Research
Volume	65
DOIs	https://doi.org/10.1016/j.apor.2017.03.017 https://doi.org/10.1016/j.apor.2017.03.017
State	Published - 1 Apr 2017

Bibliographical note

Publisher Copyright:
© 2017

NREL Publication Number

NREL/JA-5000-66871

Keywords

Energy performance
Numerical model
Optimization
Pressure differential
Renewable energy
Wave energy converter

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "Investigation on the Energy Absorption Performance of a Fixed-Bottom Pressure-Differential Wave Energy Converter",

abstract = "In this article, we investigate the energy absorption performance of a fixed-bottom pressure-differential wave energy converter. Two versions of the technology are considered: one has the moving surfaces on the bottom of the air chambers whereas the other has the moving surfaces on the top. We developed numerical models in the frequency domain, thereby enabling the power absorption of the two versions of the device to be assessed. It is observed that the moving surfaces on the top allow for easier tuning of the natural period of the system. Taking into account stroke limitations, the design is optimized. Results indicate that the pressure-differential wave energy converter is a highly efficient technology both with respect to energy absorption and selected economic performance indicators.",

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AB - In this article, we investigate the energy absorption performance of a fixed-bottom pressure-differential wave energy converter. Two versions of the technology are considered: one has the moving surfaces on the bottom of the air chambers whereas the other has the moving surfaces on the top. We developed numerical models in the frequency domain, thereby enabling the power absorption of the two versions of the device to be assessed. It is observed that the moving surfaces on the top allow for easier tuning of the natural period of the system. Taking into account stroke limitations, the design is optimized. Results indicate that the pressure-differential wave energy converter is a highly efficient technology both with respect to energy absorption and selected economic performance indicators.

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KW - Optimization

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KW - Renewable energy

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Investigation on the Energy Absorption Performance of a Fixed-Bottom Pressure-Differential Wave Energy Converter

Abstract

Bibliographical note

NREL Publication Number

Keywords

UN SDGs

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