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Abstract
Savonius rotors are large and heavy because they use drag force for propulsion. This leads to a larger investment in comparison to horizontal axis wind turbine (HAWT) rotors using lift forces. A simple construction of the Savonius rotor is preferred to reduce the production effort. Therefore, it is proposed here to use single-segment rotors of high elongation. Nevertheless, this rotor type must be compared with a multi-segment rotor to prove that the simplification does not deteriorate the effectiveness. The number of segments affects the aerodynamic performance of the rotor, however, the results shown in the literature are inconsistent. The paper presents a new observation that the relation between the effectiveness of single- and multi-segment rotors depends on the wind velocity. A single-segment rotor becomes significantly more effective than a four-segment rotor at low wind speeds. At high wind speeds, the effectiveness of both rotors becomes similar.
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Authors (5)
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Janusz Telega
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Piotr Doerffer
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Paulina Hercel
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Andrzej Tomporowski dr hab. inż.
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/en14102912
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
ENERGIES
no. 14,
ISSN: 1996-1073 - Language:
- English
- Publication year:
- 2021
- Bibliographic description:
- Doerffer K., Telega J., Doerffer P., Hercel P., Tomporowski A.: Dependence of Power Characteristics on Savonius Rotor Segmentation// ENERGIES -Vol. 14,iss. 10 (2021), s.2912-
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/en14102912
- Verified by:
- Gdańsk University of Technology
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