Investigation and optimization of an untypical vertical axis rotor of a small wind turbine

• Autorzy: Kortenstedde Frank , Stief Jan Mathias

Identyfikatory

DOI

10.30464/jmee.2019.3.3.245

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

wind energy; vertical axis wind turbine

PL

energia wiatru; turbiny wiatrowe o pionowej osi obrotu

• Wydawca: Wydawnictwo Uczelniane Politechniki Koszalińskiej
• Czasopismo: Journal of Mechanical and Energy Engineering
• Rocznik: 2019
• Tom: Vol. 3, No 3
• Strony: 245--258
• Opis fizyczny: Bibliogr.15 poz., rys., tab.

Twórcy

autor

Kortenstedde Frank

• City University of Applied Sciences, Faculty of Nature and Engineering, Institute of Aerospace Technology, Flughafenallee 10, 28199 Bremen, Germany

autor

Stief Jan Mathias

• City University of Applied Sciences, Faculty of Nature and Engineering, Institute of Aerospace Technology

Bibliografia

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