A Design Procedure for Anchors of Floating Ocean Current Turbines on Weak Rock

In recent years, ocean current turbines have proven to be a reliable device for renewable energy generation. A crucial element of these turbines are the foundations, since they limit the displacement of the turbine, which is key in achieving efficiency in energy conversion, and can account for up to...

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Main Authors: Francisco Bañuelos-García, Michael Ring, Edgar Mendoza, Rodolfo Silva
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/14/21/7347
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author Francisco Bañuelos-García
Michael Ring
Edgar Mendoza
Rodolfo Silva
author_facet Francisco Bañuelos-García
Michael Ring
Edgar Mendoza
Rodolfo Silva
author_sort Francisco Bañuelos-García
collection DOAJ
description In recent years, ocean current turbines have proven to be a reliable device for renewable energy generation. A crucial element of these turbines are the foundations, since they limit the displacement of the turbine, which is key in achieving efficiency in energy conversion, and can account for up to 26% of the total cost of the project. Most design procedures for foundations focus on sandy and clayey soils, but rock soils often predominate in tropical locations where marine currents are suitable for the installation of this type of turbine. This paper presents a design procedure for steel pile anchors (PAs) and concrete dead weight anchors (DWAs) on weak rock soils, using the assumptions of current technical documents and design codes commonly used in the industry for marine structures. Using specific designs for PA and DWA anchors, the procedure was theoretically assessed for a site off Cozumel Island, Mexico. The results show that the dimensions needed for DWAs are substantially larger than those for PAs. Therefore, whenever drilling is economically and operatively possible, piles would be preferable for the foundations of current turbine systems.
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spelling doaj.art-02298a08476546a28fc4194cfaf55f7a2023-12-03T13:26:43ZengMDPI AGEnergies1996-10732021-11-011421734710.3390/en14217347A Design Procedure for Anchors of Floating Ocean Current Turbines on Weak RockFrancisco Bañuelos-García0Michael Ring1Edgar Mendoza2Rodolfo Silva3Facultad de Ingeniería, Universidad Autónoma del Estado de México, Cerro de Coatepec S/N, Ciudad Universitaria, Toluca 50110, MexicoInstituto de Ingeniería, Universidad Nacional Autónoma de México, Coyoacán 04510, MexicoInstituto de Ingeniería, Universidad Nacional Autónoma de México, Coyoacán 04510, MexicoInstituto de Ingeniería, Universidad Nacional Autónoma de México, Coyoacán 04510, MexicoIn recent years, ocean current turbines have proven to be a reliable device for renewable energy generation. A crucial element of these turbines are the foundations, since they limit the displacement of the turbine, which is key in achieving efficiency in energy conversion, and can account for up to 26% of the total cost of the project. Most design procedures for foundations focus on sandy and clayey soils, but rock soils often predominate in tropical locations where marine currents are suitable for the installation of this type of turbine. This paper presents a design procedure for steel pile anchors (PAs) and concrete dead weight anchors (DWAs) on weak rock soils, using the assumptions of current technical documents and design codes commonly used in the industry for marine structures. Using specific designs for PA and DWA anchors, the procedure was theoretically assessed for a site off Cozumel Island, Mexico. The results show that the dimensions needed for DWAs are substantially larger than those for PAs. Therefore, whenever drilling is economically and operatively possible, piles would be preferable for the foundations of current turbine systems.https://www.mdpi.com/1996-1073/14/21/7347ocean current turbinefoundation designdead weight anchorpile anchorlimestone seabeddesign procedure
spellingShingle Francisco Bañuelos-García
Michael Ring
Edgar Mendoza
Rodolfo Silva
A Design Procedure for Anchors of Floating Ocean Current Turbines on Weak Rock
Energies
ocean current turbine
foundation design
dead weight anchor
pile anchor
limestone seabed
design procedure
title A Design Procedure for Anchors of Floating Ocean Current Turbines on Weak Rock
title_full A Design Procedure for Anchors of Floating Ocean Current Turbines on Weak Rock
title_fullStr A Design Procedure for Anchors of Floating Ocean Current Turbines on Weak Rock
title_full_unstemmed A Design Procedure for Anchors of Floating Ocean Current Turbines on Weak Rock
title_short A Design Procedure for Anchors of Floating Ocean Current Turbines on Weak Rock
title_sort design procedure for anchors of floating ocean current turbines on weak rock
topic ocean current turbine
foundation design
dead weight anchor
pile anchor
limestone seabed
design procedure
url https://www.mdpi.com/1996-1073/14/21/7347
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