Innovatory Designs for Ducted Wind Turbines
Date Issued
2005
Date
2005
Author(s)
Hu, Ssu-yuan
DOI
zh-TW
Abstract
Designs for conventional ducted wind turbines usually include a large inlet for more absorption of the air flow. However, the most efficient solution should be increasing the speed of wind. It has been observed that a bucket-shaped duct produces a sucking effect according to the Bernoulli’s Theorem, and thus significantly increases the wind speed inside the duct, while the efficiency of the wind turbine can be substantially enhanced. Moreover, the geometry of the duct is optimized by the combination of an improved Complex algorithm, an object-oriented optimizing program interface, and the simulations by CFD software. According to our studies, the optimal shape for the interior of the duct appears to be an unconventional nozzle, which extends the range of wind speed by 60%.
Based on this bucket duct equipped with the optimal nozzle, a wind power generator has been practically designed and constructed. The results of the field tests show that the proposed ducted turbine does improve the flow around the generator and thus increase its power extraction efficiency by about 80%.
Subjects
流道式風機
最佳化
計算流體動力學
風力發電
再生能源
ducted wind turbines
optimization
CFD
wind power
renewable energy
SDGs
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-94-D89522013-1.pdf
Size
23.53 KB
Format
Adobe PDF
Checksum
(MD5):17acc1d3902c510065856e6cfa04affd