Journal ArticleDOI
Offshore Wind Foundation Design: Some Key Issues
M. Dolores Esteban,M. Dolores Esteban,José-Santos López-Gutiérrez,Vicente Negro,Clara Matutano,Francisca M. García-Flores,M. Ángel Millán +6 more
TLDR
In this paper, the authors expound current, already identified structural uncertainties: problems for soil characterization and transition piece (TP) design, and introduce new doubts or issues to be researched in the near future in this field.Abstract:
Despite the growth of the offshore wind industry, there are currently doubts relating to the design of wind facilities in the sea. This paper expounds current, already identified structural uncertainties: problems for soil characterization and transition piece (TP) design. This document also introduces new doubts or issues to be researched in the near future in this field (wave theory, scour process, wave load actions, scale difficulty, etc.), not as yet identified due to the scarce experience in the offshore wind industry. With this in mind, technical offshore wind standards related to foundation design have been reviewed.read more
Citations
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Journal ArticleDOI
Output power smoothing and reduced downtime period by combined wind and wave energy farms
TL;DR: In this paper, the benefits in terms of power smoothing and reduced downtime of combined offshore wind and wave farms relative to the standalone alternatives were analyzed through two case studies, corresponding to wind farms currently in operation and based on extensive wave and wind data.
Journal ArticleDOI
Monopiles in offshore wind: Preliminary estimate of main dimensions
Vicente Negro,José-Santos López-Gutiérrez,M. Dolores Esteban,Pablo Alberdi,Mario Imaz,José-María Serraclara +5 more
TL;DR: In this paper, a database gathering offshore wind farms in operation with monopiles is prepared in order to obtain simple formulas relating those parameters, and the results of that formula are compared with traditional formulas used in maritime engineering for piles with diameters less than 2 m.
Journal ArticleDOI
Combined Floating Offshore Wind and Solar PV
TL;DR: In this paper, the authors explored the potential of combining offshore wind and solar power through a case study in Asturias (Spain), a region where floating solutions are the only option for marine renewables due to the lack of shallow water areas, which renders bottom-fixed wind turbines inviable.
Journal ArticleDOI
Foundations in Offshore Wind Farms: Evolution, Characteristics and Range of Use. Analysis of Main Dimensional Parameters in Monopile Foundations
TL;DR: In this article, a review of the offshore wind power installed around the world and the exposition of the different types of foundations in the industry is presented, and all the data are being processed to be exposed in clear graphic summarizing the current use of different foundation types, considering mainly distance to the coast and water depth.
References
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Book
The mechanics of scour in the marine environment
B. Mutlu Sumer,Jørgen Fredsøe +1 more
TL;DR: Scour Below Pipelines Scour around a single slender pile Scour Around a Group of Slender Piles Examples of More Complex Configurations ScourAround Large Piles Scouraround Breakwaters Scour at Seawalls Ship-Propeller Scour Impact of Liquefaction
Book
Hydrodynamics of Offshore Structures
TL;DR: In this article, the authors describe wave mechanics and how to choose wave theories and design waves, and how this wave is used to obtain forces on a fixed offshore structure, if the structure is allowed to move, various methods of obtaining the motions of the structure are given.
Journal ArticleDOI
Local Scour Around Cylindrical Piers
TL;DR: In this paper, a review of literature on model and field data is presented, and the empirical data are compared with theoretical considerations, together with a set of design suggestions together with possibilities for protection against scour.
Journal ArticleDOI
Why offshore wind energy
TL;DR: In this paper, a brief revision of the state of the art of offshore wind power is presented, followed by a critical discussion about the causes of the recently growth that is currently happening.
Journal ArticleDOI
Scour Around Vertical Pile in Waves
TL;DR: In this article, the authors present the results of an experimental investigation on scour around piles exposed to waves, including bed shear-stress measurements and a flow visualization study, based on the present data, a design equation is established, relating the scour depth to the Keulegan-carpenter number.