Power Augmentation of Shrouded Wind Turbines in a Multirotor System

Yuji Ohya, Jumpei Miyazaki, Uli Göltenbott, Koichi Watanabe

研究成果: ジャーナルへの寄稿記事

11 引用 (Scopus)

抄録

Diffuser-augmented wind turbines (DAWTs) can significantly increase the performance of the rotor. Multirotor systems (MRSs) have a lot of merits such as significant saving mass and overall cost of the wind turbine system. A MRS is defined as containing more than one rotor in a single structure. In the present research, DAWTs are studied in a MRS. In wind tunnel experiments, the power output and aerodynamics of two and three DAWTs placed in close vicinity, in side-by-side arrangements, have been investigated, along with circular disks and conventional wind turbines in the same configurations as the MRS. Results show a significant increase of up to 12% in total power output of the MRS with DAWTs compared to the sum of the stand-alone same turbines. The results can be explained by observing the bluff body flow phenomena in the wake interference around the multiple circular disks. Those flow phenomena are due to the accelerated gap flows and those biasing in the flow direction caused by the vortex interactions in the gap.

元の言語英語
記事番号051202
ジャーナルJournal of Energy Resources Technology, Transactions of the ASME
139
発行部数5
DOI
出版物ステータス出版済み - 9 1 2017

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wind turbine
Wind turbines
Rotors
wind tunnel
turbine
aerodynamics
Wind tunnels
vortex
Aerodynamics
Vortex flow
Turbines
cost
Costs
experiment
Experiments

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Mechanical Engineering
  • Geochemistry and Petrology

これを引用

Power Augmentation of Shrouded Wind Turbines in a Multirotor System. / Ohya, Yuji; Miyazaki, Jumpei; Göltenbott, Uli; Watanabe, Koichi.

:: Journal of Energy Resources Technology, Transactions of the ASME, 巻 139, 番号 5, 051202, 01.09.2017.

研究成果: ジャーナルへの寄稿記事

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