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 | |
| Publication status | Published - May 1 2019 |
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All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Energy Engineering and Power Technology
- Mechanical Engineering
- Geochemistry and Petrology
Cite this
Multirotor Systems Using Three Shrouded Wind Turbines for Power Output Increase. / Watanabe, Koichi; Ohya, Yuji.
In: Journal of Energy Resources Technology, Transactions of the ASME, Vol. 141, No. 5, 051211, 01.05.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Multirotor Systems Using Three Shrouded Wind Turbines for Power Output Increase
AU - Watanabe, Koichi
AU - Ohya, Yuji
PY - 2019/5/1
Y1 - 2019/5/1
N2 - 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.
AB - 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.
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U2 - 10.1115/1.4042971
DO - 10.1115/1.4042971
M3 - Article
VL - 141
JO - Journal of Energy Resources Technology, Transactions of the ASME
JF - Journal of Energy Resources Technology, Transactions of the ASME
SN - 0195-0738
IS - 5
M1 - 051211
ER -