Exploring wind farms with alternating two- and three-bladed wind turbines

Imran Hayat, Tanmoy Chatterjee, Huiwen Liu, Yulia Peet, Leonardo P. Chamorro

Research output: Contribution to journalArticle

Abstract

Laboratory experiments and numerical simulations were carried out to explore potential advantages of using alternating rows of 3-bladed and 2-bladed turbines within wind farms. The power output and turbulence around the units were compared with baseline wind farms composed of 3-bladed turbines. The experimental setups consisted of two arrays of aligned turbines with streamwise separation of five and ten rotor diameters d, sharing a spanwise spacing of 2.5d. Complementary Large Eddy Simulations at full-scale Reynolds number of Re≈10 9 based on d were performed for the 5d setups. Results showed enhanced mean velocity and reduced turbulence levels in the heterogeneous wind farm as compared with the baseline in the 5d layout, which may imply lower dynamic loading; however, this was not reflected in the power fluctuation intensity. A marginal increase in the power of the 3-bladed turbines was offset by the diminished performance of the 2-bladed turbines. For the 10d cases, the benefits associated with the heterogeneous farm were negligible due to longer recovery distances. The performance of the heterogeneous wind farm did not improve over the baseline case; however, it may offer potentially lower costs of manufacturing and transportation, among others.

Original languageEnglish (US)
Pages (from-to)764-774
Number of pages11
JournalRenewable Energy
DOIs
StatePublished - Aug 1 2019

Fingerprint

Wind turbines
Farms
Turbines
Turbulence
Large eddy simulation
Reynolds number
Rotors
Recovery
Computer simulation
Costs
Experiments

Keywords

  • Turbine wake
  • Two-bladed turbines
  • Wind farms

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

Cite this

Exploring wind farms with alternating two- and three-bladed wind turbines. / Hayat, Imran; Chatterjee, Tanmoy; Liu, Huiwen; Peet, Yulia; Chamorro, Leonardo P.

In: Renewable Energy, 01.08.2019, p. 764-774.

Research output: Contribution to journalArticle

Hayat, Imran ; Chatterjee, Tanmoy ; Liu, Huiwen ; Peet, Yulia ; Chamorro, Leonardo P. / Exploring wind farms with alternating two- and three-bladed wind turbines. In: Renewable Energy. 2019 ; pp. 764-774.
@article{f20764413b104b6782826e578c76c5e9,
title = "Exploring wind farms with alternating two- and three-bladed wind turbines",
abstract = "Laboratory experiments and numerical simulations were carried out to explore potential advantages of using alternating rows of 3-bladed and 2-bladed turbines within wind farms. The power output and turbulence around the units were compared with baseline wind farms composed of 3-bladed turbines. The experimental setups consisted of two arrays of aligned turbines with streamwise separation of five and ten rotor diameters d, sharing a spanwise spacing of 2.5d. Complementary Large Eddy Simulations at full-scale Reynolds number of Re≈10 9 based on d were performed for the 5d setups. Results showed enhanced mean velocity and reduced turbulence levels in the heterogeneous wind farm as compared with the baseline in the 5d layout, which may imply lower dynamic loading; however, this was not reflected in the power fluctuation intensity. A marginal increase in the power of the 3-bladed turbines was offset by the diminished performance of the 2-bladed turbines. For the 10d cases, the benefits associated with the heterogeneous farm were negligible due to longer recovery distances. The performance of the heterogeneous wind farm did not improve over the baseline case; however, it may offer potentially lower costs of manufacturing and transportation, among others.",
keywords = "Turbine wake, Two-bladed turbines, Wind farms",
author = "Imran Hayat and Tanmoy Chatterjee and Huiwen Liu and Yulia Peet and Chamorro, {Leonardo P.}",
year = "2019",
month = "8",
day = "1",
doi = "10.1016/j.renene.2019.01.123",
language = "English (US)",
pages = "764--774",
journal = "Renewable Energy",
issn = "0960-1481",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Exploring wind farms with alternating two- and three-bladed wind turbines

AU - Hayat, Imran

AU - Chatterjee, Tanmoy

AU - Liu, Huiwen

AU - Peet, Yulia

AU - Chamorro, Leonardo P.

PY - 2019/8/1

Y1 - 2019/8/1

N2 - Laboratory experiments and numerical simulations were carried out to explore potential advantages of using alternating rows of 3-bladed and 2-bladed turbines within wind farms. The power output and turbulence around the units were compared with baseline wind farms composed of 3-bladed turbines. The experimental setups consisted of two arrays of aligned turbines with streamwise separation of five and ten rotor diameters d, sharing a spanwise spacing of 2.5d. Complementary Large Eddy Simulations at full-scale Reynolds number of Re≈10 9 based on d were performed for the 5d setups. Results showed enhanced mean velocity and reduced turbulence levels in the heterogeneous wind farm as compared with the baseline in the 5d layout, which may imply lower dynamic loading; however, this was not reflected in the power fluctuation intensity. A marginal increase in the power of the 3-bladed turbines was offset by the diminished performance of the 2-bladed turbines. For the 10d cases, the benefits associated with the heterogeneous farm were negligible due to longer recovery distances. The performance of the heterogeneous wind farm did not improve over the baseline case; however, it may offer potentially lower costs of manufacturing and transportation, among others.

AB - Laboratory experiments and numerical simulations were carried out to explore potential advantages of using alternating rows of 3-bladed and 2-bladed turbines within wind farms. The power output and turbulence around the units were compared with baseline wind farms composed of 3-bladed turbines. The experimental setups consisted of two arrays of aligned turbines with streamwise separation of five and ten rotor diameters d, sharing a spanwise spacing of 2.5d. Complementary Large Eddy Simulations at full-scale Reynolds number of Re≈10 9 based on d were performed for the 5d setups. Results showed enhanced mean velocity and reduced turbulence levels in the heterogeneous wind farm as compared with the baseline in the 5d layout, which may imply lower dynamic loading; however, this was not reflected in the power fluctuation intensity. A marginal increase in the power of the 3-bladed turbines was offset by the diminished performance of the 2-bladed turbines. For the 10d cases, the benefits associated with the heterogeneous farm were negligible due to longer recovery distances. The performance of the heterogeneous wind farm did not improve over the baseline case; however, it may offer potentially lower costs of manufacturing and transportation, among others.

KW - Turbine wake

KW - Two-bladed turbines

KW - Wind farms

UR - http://www.scopus.com/inward/record.url?scp=85061332103&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85061332103&partnerID=8YFLogxK

U2 - 10.1016/j.renene.2019.01.123

DO - 10.1016/j.renene.2019.01.123

M3 - Article

SP - 764

EP - 774

JO - Renewable Energy

JF - Renewable Energy

SN - 0960-1481

ER -