Flow interaction of diffuser augmented wind turbines

U. Göltenbott, Y. Ohya, S. Yoshida, P. Jamieson

研究成果: ジャーナルへの寄稿Conference article

4 引用 (Scopus)

抄録

Up-scaling of wind turbines has been a major trend in order to reduce the cost of energy generation from the wind. Recent studies however show that for a given technology, the cost always rises with upscaling, notably due to the increased mass of the system. To reach capacities beyond 10 MW, multi-rotor systems (MRS) have promising advantages. On the other hand, diffuser augmented wind turbines (DAWTs) can significantly increase the performance of the rotor. Up to now, diffuser augmentation has only been applied to single small wind turbines. In the present research, DAWTs are used in a multi-rotor system. In wind tunnel experiments, the aerodynamics of two and three DAWTs, spaced in close vicinity in the same plane normal to a uniform flow, have been analysed. Power increases of up to 5% and 9% for the two and three rotor configurations are respectively achieved in comparison to a stand-alone turbine. The physical dynamics of the flows are analysed on the basis of the results obtained with a stand-alone turbine.

元の言語英語
記事番号022038
ジャーナルJournal of Physics: Conference Series
753
発行部数2
DOI
出版物ステータス出版済み - 10 3 2016
イベントScience of Making Torque from Wind, TORQUE 2016 - Munich, ドイツ
継続期間: 10 5 201610 7 2016

Fingerprint

wind turbines
diffusers
rotors
turbines
interactions
costs
uniform flow
wind tunnels
aerodynamics
trends
scaling
augmentation
configurations
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

これを引用

Flow interaction of diffuser augmented wind turbines. / Göltenbott, U.; Ohya, Y.; Yoshida, S.; Jamieson, P.

:: Journal of Physics: Conference Series, 巻 753, 番号 2, 022038, 03.10.2016.

研究成果: ジャーナルへの寄稿Conference article

Göltenbott, U. ; Ohya, Y. ; Yoshida, S. ; Jamieson, P. / Flow interaction of diffuser augmented wind turbines. :: Journal of Physics: Conference Series. 2016 ; 巻 753, 番号 2.
@article{a5d7c1a4b501442f88ea768b7e00430b,
title = "Flow interaction of diffuser augmented wind turbines",
abstract = "Up-scaling of wind turbines has been a major trend in order to reduce the cost of energy generation from the wind. Recent studies however show that for a given technology, the cost always rises with upscaling, notably due to the increased mass of the system. To reach capacities beyond 10 MW, multi-rotor systems (MRS) have promising advantages. On the other hand, diffuser augmented wind turbines (DAWTs) can significantly increase the performance of the rotor. Up to now, diffuser augmentation has only been applied to single small wind turbines. In the present research, DAWTs are used in a multi-rotor system. In wind tunnel experiments, the aerodynamics of two and three DAWTs, spaced in close vicinity in the same plane normal to a uniform flow, have been analysed. Power increases of up to 5{\%} and 9{\%} for the two and three rotor configurations are respectively achieved in comparison to a stand-alone turbine. The physical dynamics of the flows are analysed on the basis of the results obtained with a stand-alone turbine.",
author = "U. G{\"o}ltenbott and Y. Ohya and S. Yoshida and P. Jamieson",
year = "2016",
month = "10",
day = "3",
doi = "10.1088/1742-6596/753/2/022038",
language = "English",
volume = "753",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
publisher = "IOP Publishing Ltd.",
number = "2",

}

TY - JOUR

T1 - Flow interaction of diffuser augmented wind turbines

AU - Göltenbott, U.

AU - Ohya, Y.

AU - Yoshida, S.

AU - Jamieson, P.

PY - 2016/10/3

Y1 - 2016/10/3

N2 - Up-scaling of wind turbines has been a major trend in order to reduce the cost of energy generation from the wind. Recent studies however show that for a given technology, the cost always rises with upscaling, notably due to the increased mass of the system. To reach capacities beyond 10 MW, multi-rotor systems (MRS) have promising advantages. On the other hand, diffuser augmented wind turbines (DAWTs) can significantly increase the performance of the rotor. Up to now, diffuser augmentation has only been applied to single small wind turbines. In the present research, DAWTs are used in a multi-rotor system. In wind tunnel experiments, the aerodynamics of two and three DAWTs, spaced in close vicinity in the same plane normal to a uniform flow, have been analysed. Power increases of up to 5% and 9% for the two and three rotor configurations are respectively achieved in comparison to a stand-alone turbine. The physical dynamics of the flows are analysed on the basis of the results obtained with a stand-alone turbine.

AB - Up-scaling of wind turbines has been a major trend in order to reduce the cost of energy generation from the wind. Recent studies however show that for a given technology, the cost always rises with upscaling, notably due to the increased mass of the system. To reach capacities beyond 10 MW, multi-rotor systems (MRS) have promising advantages. On the other hand, diffuser augmented wind turbines (DAWTs) can significantly increase the performance of the rotor. Up to now, diffuser augmentation has only been applied to single small wind turbines. In the present research, DAWTs are used in a multi-rotor system. In wind tunnel experiments, the aerodynamics of two and three DAWTs, spaced in close vicinity in the same plane normal to a uniform flow, have been analysed. Power increases of up to 5% and 9% for the two and three rotor configurations are respectively achieved in comparison to a stand-alone turbine. The physical dynamics of the flows are analysed on the basis of the results obtained with a stand-alone turbine.

UR - http://www.scopus.com/inward/record.url?scp=84995487685&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84995487685&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/753/2/022038

DO - 10.1088/1742-6596/753/2/022038

M3 - Conference article

AN - SCOPUS:84995487685

VL - 753

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 2

M1 - 022038

ER -