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Design and Construction of a Test Stand for Studying Experimentally Energy Harvesting from Galloping Effect

Nikouyeh, Amir | 2022

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 56489 (45)
  4. University: Sharif University of Technology
  5. Department: Aerospace Engineering
  6. Advisor(s): Ebrahimi, Abbas
  7. Abstract:
  8. In the last decade, harvesting energy from renewable phenomena in nature has attracted the attention of many researchers and turned it into a hot research focus. Wind flow around the world is an endless, repeatable and available source of energy. Therefore, harvesting wind energy disrupts the damaging cycle of fossil fuels to nature and fades over time. Therefore, in order to convert the mechanical green energy in the wind into electricity, mechanisms based on aeroelastic instabilities have attracted the attention of researchers. In this research, it is intended to design and build a test platform that is a suitable platform for research and testing on the aeroelastic instability of galloping. After the construction of the test platform and its validation, different types of cross-sections such as square, rectangle, triangle, semi-circle, trapezoid and pentagon can be tested and the effect of each of these sections on the galloping behavior and the energy extracted from it. investigated by piezoelectric transducer. At the end, the performance and optimality of each of these sections of the bluff objects up to the wind speed of 10 meters per second have been tested in the wind tunnel and the amount of power extracted from each section has been checked separately. The triangle section has the highest amplitude of oscillation among the rest of the sections, and the highest power harvested with the amount of 11.2 microwatts is obtained from this section at a speed of 10 meters per second
  9. Keywords:
  10. Energy Harvesting ; Galloping ; Aeroelastic Instability ; Test Stands ; Piezoelectric Transducers ; Bluff-Body ; Cross-Section

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