Recovery processes in coastal wind farms under sea-breeze conditions

<p>With the rapid growth in offshore wind energy, it is important to understand the dynamics of offshore wind farms. Most of the offshore wind farms are currently installed in coastal regions where they are often affected by sea-breezes. In this work, we quantitatively study the recovery proce...

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Autores principales:	T. Gupta, S. Baidya Roy
Formato:	article
Lenguaje:	EN
Publicado:	Copernicus Publications 2021
Materias:	Science Q Geology QE1-996.5 Dynamic and structural geology QE500-639.5
Acceso en línea:	https://doaj.org/article/27052e2fdc474610b1d649509fe9d261
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id	oai:doaj.org-article:27052e2fdc474610b1d649509fe9d261
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spelling	oai:doaj.org-article:27052e2fdc474610b1d649509fe9d2612021-11-22T11:59:18ZRecovery processes in coastal wind farms under sea-breeze conditions10.5194/adgeo-56-129-20211680-73401680-7359https://doaj.org/article/27052e2fdc474610b1d649509fe9d2612021-11-01T00:00:00Zhttps://adgeo.copernicus.org/articles/56/129/2021/adgeo-56-129-2021.pdfhttps://doaj.org/toc/1680-7340https://doaj.org/toc/1680-7359<p>With the rapid growth in offshore wind energy, it is important to understand the dynamics of offshore wind farms. Most of the offshore wind farms are currently installed in coastal regions where they are often affected by sea-breezes. In this work, we quantitatively study the recovery processes for coastal wind farms under sea-breeze conditions. We use a modified Borne's method to identify sea breeze days off the west coast of India in the Arabian Sea. For the identified sea breeze days, we simulate a hypothetical wind farm covering <span class="inline-formula">50×50 km<sup>2</sup></span> area using the Weather Research and Forecasting (WRF) model driven by realistic initial and boundary conditions. We use three wind farm layouts with the turbines spaced 0.5, 1, and 2 km apart. The results show an interesting power generation pattern with a peak at the upwind edge and another peak at the downwind edge due to sea breeze. Wind farms affect the circulation patterns, but the effects of these modifications are very weak compared to the sea breezes. Vertical recovery is the dominant factor with more than half of the momentum extracted by wind turbines being replenished by vertical turbulent mixing. However, horizontal recovery can also play a strong role for sparsely packed wind farms. Horizontal recovery is stronger at the edges where the wind speeds are higher whereas vertical recovery is stronger in the interior of the wind farms. This is one of the first studies to examine replenishment processes in offshore wind farms under sea breeze conditions. It can play an important role in advancing our understanding wind farm-atmospheric boundary layer interactions.</p>T. GuptaS. Baidya RoyCopernicus PublicationsarticleScienceQGeologyQE1-996.5Dynamic and structural geologyQE500-639.5ENAdvances in Geosciences, Vol 56, Pp 129-139 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Science Q Geology QE1-996.5 Dynamic and structural geology QE500-639.5
spellingShingle	Science Q Geology QE1-996.5 Dynamic and structural geology QE500-639.5 T. Gupta S. Baidya Roy Recovery processes in coastal wind farms under sea-breeze conditions
description	<p>With the rapid growth in offshore wind energy, it is important to understand the dynamics of offshore wind farms. Most of the offshore wind farms are currently installed in coastal regions where they are often affected by sea-breezes. In this work, we quantitatively study the recovery processes for coastal wind farms under sea-breeze conditions. We use a modified Borne's method to identify sea breeze days off the west coast of India in the Arabian Sea. For the identified sea breeze days, we simulate a hypothetical wind farm covering <span class="inline-formula">50×50 km<sup>2</sup></span> area using the Weather Research and Forecasting (WRF) model driven by realistic initial and boundary conditions. We use three wind farm layouts with the turbines spaced 0.5, 1, and 2 km apart. The results show an interesting power generation pattern with a peak at the upwind edge and another peak at the downwind edge due to sea breeze. Wind farms affect the circulation patterns, but the effects of these modifications are very weak compared to the sea breezes. Vertical recovery is the dominant factor with more than half of the momentum extracted by wind turbines being replenished by vertical turbulent mixing. However, horizontal recovery can also play a strong role for sparsely packed wind farms. Horizontal recovery is stronger at the edges where the wind speeds are higher whereas vertical recovery is stronger in the interior of the wind farms. This is one of the first studies to examine replenishment processes in offshore wind farms under sea breeze conditions. It can play an important role in advancing our understanding wind farm-atmospheric boundary layer interactions.</p>
format	article
author	T. Gupta S. Baidya Roy
author_facet	T. Gupta S. Baidya Roy
author_sort	T. Gupta
title	Recovery processes in coastal wind farms under sea-breeze conditions
title_short	Recovery processes in coastal wind farms under sea-breeze conditions
title_full	Recovery processes in coastal wind farms under sea-breeze conditions
title_fullStr	Recovery processes in coastal wind farms under sea-breeze conditions
title_full_unstemmed	Recovery processes in coastal wind farms under sea-breeze conditions
title_sort	recovery processes in coastal wind farms under sea-breeze conditions
publisher	Copernicus Publications
publishDate	2021
url	https://doaj.org/article/27052e2fdc474610b1d649509fe9d261
work_keys_str_mv	AT tgupta recoveryprocessesincoastalwindfarmsunderseabreezeconditions AT sbaidyaroy recoveryprocessesincoastalwindfarmsunderseabreezeconditions
_version_	1718417721839845376

Recovery processes in coastal wind farms under sea-breeze conditions

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