Determining the impact of VAWT farm configurations on power output

Research output: Contribution to journalArticle

Abstract

The potential for significant increases in VAWT farm performance compared to isolated turbines is well documented and could potentially allow VAWTs to compete in the Wind Energy market. In order to determine the most effective layout based upon both average turbine efficiency and efficient use of area, different configurations which have been shown to offer improved performance such as the 'School of Fish' design alongside new derivative and hybrid designs are compared and optimised using 2D URANS (Unsteady Reynold's Averaged Navier Stokes) CFD simulations. The results show that on a farm scale, the optimised staggered configuration provides the highest array power coefficient for a single wind direction, with a farm design proposed in order to achieve maximum efficiency and results showing increases in array power of up to 80%. Fluid flow mechanisms which cause this improvement are also identified.
LanguageEnglish
Pages1111-1120
Number of pages10
JournalRenewable Energy
Volume143
Early online date22 May 2019
DOIs
Publication statusE-pub ahead of print - 22 May 2019

Fingerprint

Farms
Turbines
Fish
Wind power
Flow of fluids
Computational fluid dynamics
Derivatives

Keywords

  • vertical axis wind turbine (VAWT)
  • 2D CFD
  • wind farm
  • power coefficient

Cite this

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title = "Determining the impact of VAWT farm configurations on power output",
abstract = "The potential for significant increases in VAWT farm performance compared to isolated turbines is well documented and could potentially allow VAWTs to compete in the Wind Energy market. In order to determine the most effective layout based upon both average turbine efficiency and efficient use of area, different configurations which have been shown to offer improved performance such as the 'School of Fish' design alongside new derivative and hybrid designs are compared and optimised using 2D URANS (Unsteady Reynold's Averaged Navier Stokes) CFD simulations. The results show that on a farm scale, the optimised staggered configuration provides the highest array power coefficient for a single wind direction, with a farm design proposed in order to achieve maximum efficiency and results showing increases in array power of up to 80{\%}. Fluid flow mechanisms which cause this improvement are also identified.",
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Determining the impact of VAWT farm configurations on power output. / Barnes, Andrew; Hughes, Ben.

In: Renewable Energy, Vol. 143, 31.12.2019, p. 1111-1120.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Determining the impact of VAWT farm configurations on power output

AU - Barnes, Andrew

AU - Hughes, Ben

PY - 2019/5/22

Y1 - 2019/5/22

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AB - The potential for significant increases in VAWT farm performance compared to isolated turbines is well documented and could potentially allow VAWTs to compete in the Wind Energy market. In order to determine the most effective layout based upon both average turbine efficiency and efficient use of area, different configurations which have been shown to offer improved performance such as the 'School of Fish' design alongside new derivative and hybrid designs are compared and optimised using 2D URANS (Unsteady Reynold's Averaged Navier Stokes) CFD simulations. The results show that on a farm scale, the optimised staggered configuration provides the highest array power coefficient for a single wind direction, with a farm design proposed in order to achieve maximum efficiency and results showing increases in array power of up to 80%. Fluid flow mechanisms which cause this improvement are also identified.

KW - vertical axis wind turbine (VAWT)

KW - 2D CFD

KW - wind farm

KW - power coefficient

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