Compounded energy gains in collocated wind plants: Energy balance quantification and wake morphology description.
Saved in:
| Title: | Compounded energy gains in collocated wind plants: Energy balance quantification and wake morphology description. |
|---|---|
| Authors: | Kadum, Hawwa1 (AUTHOR) hawwa@pdx.edu, Cal, Raúl Bayoán1 (AUTHOR) rcal@pdx.edu, Quigley, Mike2 (AUTHOR) XXX@utah.edu, Cortina, Gerard2 (AUTHOR) gerard.cortina@utah.edu, Calaf, Marc2 (AUTHOR) marc.calaf@utah.edu |
| Source: | Renewable Energy: An International Journal. May2020, Vol. 150, p868-877. 10p. |
| Subject Terms: | *Wind power plants, *Wind power, Horizontal axis wind turbines, Vertical axis wind turbines, Energy harvesting, Large eddy simulation models |
| Abstract: | Large eddy simulations are used to investigate mechanisms to enhance power harvesting in wind farms. Specifically, the potential combination of vertical axis wind turbines (VAWT) with traditional horizontal axis wind turbines (HAWT) are studied to alter wake recovery, wake interaction, and thus increase power harvesting per unit area. For this purpose, three arrangements are studied: 1.) a standard wind plant with only horizontal axis wind turbines, 2.) an aligned collocated wind plant, and 3.) a staggered collocated wind plant. In the collocated wind plants, clusters of three vertical axis wind turbines are introduced to the standard wind farm and placed either in alignment to the horizontal axis wind turbines, or staggered between the rows. A control volume analysis is employed to examine the energy balance and relevant terms for the various characteristic compounded wakes. The results show that collocating HAWTs with VAWTs can increase or decrease power harvested per unit area depending on the collocation arrangement. VAWTs cause an increase in streamwise velocity that can be utilized to speed the inflow interacting with the HAWT rotor. In this study, placing VAWTs aligned to HAWTs and upstream to them resulted in a 3.5% increase in the power produced by the wind plant. Whereas, the staggered arrangement resulted in a 2.6% decrease. The aligned case also produces a merged wake that is similar in structure to a wake produced by a traditional horizontal axis wind turbine with heightened near surface Reynolds shear stress. The staggered configuration, on the other hand, behaves as two interacting wakes generating a more confined and intensified skewed wake. These findings show the influence of collocating VAWTs in HAWT plants, and suggest the possibility of optimizing the clusters arrangements in future investigations for higher power production density. • Vertical axis wind turbines are collocated with horizontal axis wind turbines. • Collocation arrangement can increase or decrease power production. • Collocated plants display enhanced mean kinetic energy transport. • The added vertical axis wind turbine lead to sudden increase in streamwise velocity. • Placing the VAWTs upstream and close to the HAWTs increases harvested power. [ABSTRACT FROM AUTHOR] |
| Copyright of Renewable Energy: An International Journal is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | GreenFILE |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: 8gh DbLabel: GreenFILE An: 141882880 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Compounded energy gains in collocated wind plants: Energy balance quantification and wake morphology description. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kadum%2C+Hawwa%22">Kadum, Hawwa</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> hawwa@pdx.edu</i><br /><searchLink fieldCode="AR" term="%22Cal%2C+Raúl+Bayoán%22">Cal, Raúl Bayoán</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> rcal@pdx.edu</i><br /><searchLink fieldCode="AR" term="%22Quigley%2C+Mike%22">Quigley, Mike</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> XXX@utah.edu</i><br /><searchLink fieldCode="AR" term="%22Cortina%2C+Gerard%22">Cortina, Gerard</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> gerard.cortina@utah.edu</i><br /><searchLink fieldCode="AR" term="%22Calaf%2C+Marc%22">Calaf, Marc</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> marc.calaf@utah.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Renewable+Energy%3A+An+International+Journal%22">Renewable Energy: An International Journal</searchLink>. May2020, Vol. 150, p868-877. 10p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Wind+power+plants%22">Wind power plants</searchLink><br />*<searchLink fieldCode="DE" term="%22Wind+power%22">Wind power</searchLink><br /><searchLink fieldCode="DE" term="%22Horizontal+axis+wind+turbines%22">Horizontal axis wind turbines</searchLink><br /><searchLink fieldCode="DE" term="%22Vertical+axis+wind+turbines%22">Vertical axis wind turbines</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+harvesting%22">Energy harvesting</searchLink><br /><searchLink fieldCode="DE" term="%22Large+eddy+simulation+models%22">Large eddy simulation models</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Large eddy simulations are used to investigate mechanisms to enhance power harvesting in wind farms. Specifically, the potential combination of vertical axis wind turbines (VAWT) with traditional horizontal axis wind turbines (HAWT) are studied to alter wake recovery, wake interaction, and thus increase power harvesting per unit area. For this purpose, three arrangements are studied: 1.) a standard wind plant with only horizontal axis wind turbines, 2.) an aligned collocated wind plant, and 3.) a staggered collocated wind plant. In the collocated wind plants, clusters of three vertical axis wind turbines are introduced to the standard wind farm and placed either in alignment to the horizontal axis wind turbines, or staggered between the rows. A control volume analysis is employed to examine the energy balance and relevant terms for the various characteristic compounded wakes. The results show that collocating HAWTs with VAWTs can increase or decrease power harvested per unit area depending on the collocation arrangement. VAWTs cause an increase in streamwise velocity that can be utilized to speed the inflow interacting with the HAWT rotor. In this study, placing VAWTs aligned to HAWTs and upstream to them resulted in a 3.5% increase in the power produced by the wind plant. Whereas, the staggered arrangement resulted in a 2.6% decrease. The aligned case also produces a merged wake that is similar in structure to a wake produced by a traditional horizontal axis wind turbine with heightened near surface Reynolds shear stress. The staggered configuration, on the other hand, behaves as two interacting wakes generating a more confined and intensified skewed wake. These findings show the influence of collocating VAWTs in HAWT plants, and suggest the possibility of optimizing the clusters arrangements in future investigations for higher power production density. • Vertical axis wind turbines are collocated with horizontal axis wind turbines. • Collocation arrangement can increase or decrease power production. • Collocated plants display enhanced mean kinetic energy transport. • The added vertical axis wind turbine lead to sudden increase in streamwise velocity. • Placing the VAWTs upstream and close to the HAWTs increases harvested power. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Renewable Energy: An International Journal is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=8gh&AN=141882880 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.renene.2019.12.077 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 868 Subjects: – SubjectFull: Wind power plants Type: general – SubjectFull: Wind power Type: general – SubjectFull: Horizontal axis wind turbines Type: general – SubjectFull: Vertical axis wind turbines Type: general – SubjectFull: Energy harvesting Type: general – SubjectFull: Large eddy simulation models Type: general Titles: – TitleFull: Compounded energy gains in collocated wind plants: Energy balance quantification and wake morphology description. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kadum, Hawwa – PersonEntity: Name: NameFull: Cal, Raúl Bayoán – PersonEntity: Name: NameFull: Quigley, Mike – PersonEntity: Name: NameFull: Cortina, Gerard – PersonEntity: Name: NameFull: Calaf, Marc IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 09601481 Numbering: – Type: volume Value: 150 Titles: – TitleFull: Renewable Energy: An International Journal Type: main |
| ResultId | 1 |
