Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Energy Conversion an...arrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
Energy Conversion and Management: X
Article . 2023 . Peer-reviewed
License: CC BY NC ND
Data sources: Crossref
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
versions View all 2 versions
addClaim

This Research product is the result of merged Research products in OpenAIRE.

You have already added 0 works in your ORCID record related to the merged Research product.

On the S-shaped floaters for a Wavestar-like wave energy converter with an I-shaped mechanical power take-off

Authors: Ammar Ahmed; Ali Azam; Yanen Wang; Xing Tan; Minyi Yi; Zutao Zhang;

On the S-shaped floaters for a Wavestar-like wave energy converter with an I-shaped mechanical power take-off

Abstract

A numerical wave energy converter (WEC) similar to the Wavestar WEC with eight units, each comprising an I-shaped power take-off (PTO), was studied with the cylindrical-hemispherical (C-HS) and S-shaped floaters. Efforts were made to examine the effects of the floater-geometry change on the PTO power performance and to study the significance of replacing a C-HS with an S-shaped floater of the same size and resonance characteristics using a hybrid algorithm based on ANSYS AQWA and MATLAB Simscape. The pure floater-shape-change effects on their heave responses were evaluated through the time-domain simulations in ANSYS AQWA and imported into a MATLAB-Simscape-based algorithm of the PTO to investigate the performance of the PTO and the overall WEC model under those effects. The buoys on the model scale were tested in a lab-scale facility, followed by a CFD analysis to study how the surrounding fluid interacts with the C-HS and the S-shaped floaters. The spectral modeling showed that the S-shaped floater could achieve a 5.5% greater RMS heave response than the C-HS in irregular waves. Replacing a C-HS with an S-shaped floater, the maximum increase in the PTO force was recorded to be 14%. A PTO integrated into an S-shaped floater attained 26% greater input power than one integrated into a C-HS floater. At an energy conversion efficiency of 55%, the PTO output power with an S-shaped floater tends to be 25–26% greater than with a C-HS floater. Replacing a C-HS with an S-shaped floater in the Wavestar-like WEC could be an optimal choice.

Related Organizations
Keywords

Sustainable development goals, Engineering (General). Civil engineering (General), Floater geometry, I-shaped PTO, S-shaped floater, TA1-2040, Wave energy converter

  • BIP!
    Impact byBIP!
    citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold