Article

Analysis on the split absorber integrated with taut-moored floating turbine

Physics of Fluids

Zhang, Huidong; Wang, Tong; Guedes Soares, Carlos — 2023 — AIP Publishing

Key information

Authors:

Zhang, Huidong (Huidong Zhang); Wang, Tong; Xu, Cong; Shi, Hongda; Guedes Soares, Carlos (Carlos Guedes Soares)

Published in

August 4, 2023

Abstract

A new wave energy converter is proposed in this paper, consisting of three split heave point absorbers, combined with a taut-moored floating turbine. It is adapted to the waves in the China Sea area, which are characterized by short periods and small amplitudes. Based on a series of physical model tests in regular, irregular, and extreme waves, the hydrodynamic performance of the integrated device is systematically investigated under different damping forces and incident wave directions. The experimental results reveal that the split point absorber presents new hydrodynamic characteristics and that the wave energy capture efficiency of the new device is greatly improved for the short-period waves in low sea states. Moreover, due to the out-of-phase heave motion, as well as the induced shallow water effect, the submerged platform makes a contribution to improving the energy capture efficiency of the split floater, particularly pronounced in the case of a high damping force in the power takeoff system. Under the condition of incident wave direction being coincident with the horizontal projection of mooring lines, the energies of pitch motion and mooring force of the integrated system are increased as a result of the high-frequency oscillation, which needs to be solved by further optimizing the taut mooring system.

Publication details

Authors in the community:

Publication version

VoR - Version of Record

Publisher

AIP Publishing

Link to the publisher's version

https://pubs.aip.org/aip/pof/article/35/8/087110/2905645/Analysis-on-the-split-absorber-integrated-with

Title of the publication container

Physics of Fluids

First page or article number

087110

Volume

35

Issue

8

DOI

10.1063/5.0157536

Fields of Science and Technology (FOS)

other-engineering-and-technologies - Other engineering and technologies

Keywords

  • Power supply circuits
  • Energy storage
  • Wave power
  • Wind energy
  • Wind turbines
  • Laboratory procedures
  • Oceanography
  • Frequency spectrum
  • Surface waves
  • Tissues

Publication language (ISO code)

eng - English

Rights type:

Restricted access

Financing entity

Fundação para a Ciência e a Tecnologia

Identifier for the funding entity: UIDB-UIDP-00134-2020

Type of identifier of the funding entity: Crossref Funder