Multirotor Systems Using Three Shrouded Wind Turbines for Power Output Increase

Koichi Watanabe; Yuji Ohya

doi:10.1115/1.4042971

Multirotor Systems Using Three Shrouded Wind Turbines for Power Output Increase

Koichi Watanabe, Yuji Ohya

Kyushu University Platform of Inter/Transdisciplinary Energy Research

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

Brimmed-diffuser augmented wind turbines (B-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. In the present research, B-DAWTs are studied in a MRS. In wind tunnel experiments, the power output and aerodynamics of three B-DAWTs placed in close vicinity have been investigated. The results show a significant increase of up to 12% in total power output of the MRS with B-DAWTs compared to the sum of the stand-alone (SA) same turbines. The accelerated gap flows between B-DAWTs in a MRS cause lowered pressure regions due to vortex interaction behind the brimmed diffusers and draw more wind into turbines.

Original language	English
Article number	051211
Journal	Journal of Energy Resources Technology, Transactions of the ASME
Volume	141
Issue number	5
DOIs	https://doi.org/10.1115/1.4042971
Publication status	Published - May 1 2019

All Science Journal Classification (ASJC) codes

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

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Watanabe, K., & Ohya, Y. (2019). Multirotor Systems Using Three Shrouded Wind Turbines for Power Output Increase. Journal of Energy Resources Technology, Transactions of the ASME, 141(5), [051211]. https://doi.org/10.1115/1.4042971

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