- Tytuł:
- Investigation and optimization of an untypical vertical axis rotor of a small wind turbine
- Autorzy:
-
Kortenstedde, Frank
Stief, Jan Mathias - Powiązania:
- https://bibliotekanauki.pl/articles/95169.pdf
- Data publikacji:
- 2019
- Wydawca:
- Politechnika Koszalińska. Wydawnictwo Uczelniane
- Tematy:
-
wind energy
vertical axis wind turbine
energia wiatru
turbiny wiatrowe o pionowej osi obrotu - Opis:
- In this paper, an atypical resistance rotor of a vertical axis small wind energy turbine is to be aerodynamically investigated and later on optimized in a flow simulation. In this report the results obtained from the flow simulations of the single and two rotor setup, as well as the results from the flow simulations of a single blade, are presented. The geometry of the rotor and blades is the base geometry for further optimization. All simulations are performed with one specific tip speed ratio. The base geometry for slat and baffle can be calculated based on experience gained in previous studies. It was found in previous experiments that a rotor with 42% coverage (area that occupies the wings of the total circumference) is always started. Those experiments have also shown that a rotor with 36.5% coverage has a higher power coefficient at low wind speeds, at higher wind speeds, the rotor with 42% coverage has a better power coefficient. Based on those first investigations the optimization of the blade and rotor geometry will be carried out later in this project. Another focal point will be the investigation of the "stacking" of two wind turbines on top of each other in order to obtain a stable torque over the entire circulation and the determination of the optimal distance between two rotors.
- Źródło:
-
Journal of Mechanical and Energy Engineering; 2019, 3, 3; 245-258
2544-0780
2544-1671 - Pojawia się w:
- Journal of Mechanical and Energy Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł