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Wind Turbine and Wind Farm Flows

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A3: Wind, Wave and Tidal Energy".

Deadline for manuscript submissions: 22 November 2024 | Viewed by 1989

Special Issue Editor


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Guest Editor
Department of Earth Sciences, Uppsala University, 752 36 Uppsala, Sweden
Interests: atmospheric dynamics; turbulence; wind energy; fluid dynamics

Special Issue Information

Dear Colleagues,

The growth of the worldwide energy demand and the impact that human activities have on the current and future global climate are challenges and constraints that need to be taken into account nowadays. Renewable energy sources are viable options that provide electricity with a limited carbon footprint and, therefore, have a key role in the energy transition process worldwide. The exploitation of the wind resource, in particular, has played a leading role in many countries where the wind blows sufficiently, leading to both onshore and offshore installations. Recent trends, such as

  • Wind resource assessment in a changing climate
  • Wind farm aerodynamics optimization
  • Wake losses
  • Global upstream blockage
  • Interaction of wind farms and terrain
  • Interaction of wind farms with a stratified atmosphere
  • Wind farm control
  • Floating turbine aerodynamics

represent key research aspects to define new guidelines for the planning, installation, and operation of wind farms during their lifetime. The aim of this research effort is to improve the understanding of farm aerodynamics to maximize the power production at every time and throughout the park. This goal can be tackled by means of experiments, numerical simulations, and theoretical models. This Special Issue aims to collect cutting-edge research works to update the current understanding of wind farms, how they extract power from the atmosphere and interact with it, and how they can operate in different configurations, such as offshore floating turbines.

Dr. Antonio Segalini
Guest Editor

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • wind resource
  • wind farm aerodynamics
  • wake losses
  • blockage losses
  • farm control
  • floating turbines
  • farm planning and operation

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Published Papers (2 papers)

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Research

35 pages, 13803 KiB  
Article
Condition Monitoring Using Digital Fault-Detection Approach for Pitch System in Wind Turbines
by Abdelmoumen Saci, Mohamed Nadour, Lakhmissi Cherroun, Ahmed Hafaifa, Abdellah Kouzou, Jose Rodriguez and Mohamed Abdelrahem
Energies 2024, 17(16), 4016; https://doi.org/10.3390/en17164016 - 13 Aug 2024
Cited by 1 | Viewed by 781
Abstract
The monitoring of wind turbine (WT) systems allows operators to maximize their performance, consequently minimizing untimely shutdowns and related hazard situations while maximizing their efficiency. Indeed, the rational monitoring of WT ensures the identification of the main sources of risks at a proper [...] Read more.
The monitoring of wind turbine (WT) systems allows operators to maximize their performance, consequently minimizing untimely shutdowns and related hazard situations while maximizing their efficiency. Indeed, the rational monitoring of WT ensures the identification of the main sources of risks at a proper time, such as internal or external failures, hence leading to an increase in their prevention by limiting the faults’ occurrence regarding the different components of wind turbines, achieving production objectives. In this context, the present paper develops a practical monitoring approach using a numerical fault-detection process for the pitch system based on a benchmark wind turbine (WT) model with the main aim of improving safety and security performance. Therefore, the proposed fault-diagnosis procedure deals with eventual faults occurring in the actuators and sensors of the pitch system. In this proposed approach, a simple, logical process is used to generate the correct residuals as fault information based on the redundancy in the actuators and sensors of the pitch sub-systems. The obtained results demonstrate the effectiveness of this proposed process for ensuring the tasks of the fault diagnosis and condition monitoring of the WT systems, and it can be a promising approach for avoiding major damage in such systems, leading to their operational stability and improved reliability and availability. Full article
(This article belongs to the Special Issue Wind Turbine and Wind Farm Flows)
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17 pages, 5443 KiB  
Article
The Effects of a Seagull Airfoil on the Aerodynamic Performance of a Small Wind Turbine
by Dean Sesalim and Jamal Naser
Energies 2024, 17(11), 2768; https://doi.org/10.3390/en17112768 - 5 Jun 2024
Viewed by 722
Abstract
Birds’ flight characteristics such as gliding and dynamic soaring have inspired various optimizations and designs of wind turbines. The implementation of biological wing geometries such as the airfoil profile of seabirds has improved wind turbine performance. However, the field can still benefit from [...] Read more.
Birds’ flight characteristics such as gliding and dynamic soaring have inspired various optimizations and designs of wind turbines. The implementation of biological wing geometries such as the airfoil profile of seabirds has improved wind turbine performance. However, the field can still benefit from further investigation into the aerodynamic characteristics of an inspired design. Therefore, this study evaluated the effect of a seagull airfoil design on the aerodynamic performance of the National Renewable Energy Laboratory (NREL) Phase VI wind turbine. By replacing its S809 airfoil with the laser-scanned profile of the seagull airfoil, the aerodynamic behavior at key locations of the NREL Phase VI wind turbine blade was numerically simulated in a three-dimensional environment using the Ansys Fluent 2022 R1 computational fluid dynamics (CFD) code. The results were validated against the experimental data, and analysis of the torque outputs, pressure distributions, and velocity profiles that were generated by both the baseline and modified models demonstrated the ability of the seagull airfoil profile to modify regions of minimum and maximum local velocities to achieve highly favorable pressure differentials, significantly increasing the torque output of the NREL Phase VI wind turbine by 350, 539, 823, and 577 Nm at 10, 15, 20, and 25 m/s inlet velocities, respectively. Full article
(This article belongs to the Special Issue Wind Turbine and Wind Farm Flows)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: A Comparative Study of Advanced Deep Learning Models for 24-Hours Wind Turbine Power Generation Forecasting
Authors: Laios Ioannis; Moustris Konstantinos; Zafirakis Dimitrios; Spyropoulos Georgios
Affiliation: Air Pollution Lab., Department of Mechanical Engineers, School of Engineers, University of West Attica, P.Ralli & 250 Thivon Str., Aegaleo, Athens GR12244, Greece; [email protected] (L.I.); [email protected] (K.M.) 2 Soft Energy Applications & Environmental Protection Laboratory, University of West Attica, P.Ralli & 250 Thivon Str., Aegaleo, Athens GR12244, Greece; [email protected] (D.Z.); [email protected] (G.S.) *Correspondence: [email protected]

Title: Numerical study of a J-shape vertical axis wind turbine with variable pitch.
Authors: Malak Gherbi; Patrick Verdin
Affiliation: Cranfield University, UK

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