Rolling Turbines-Theoretical Considerations and Experimental Verification

0556430 - ÚT 2023 RIV US eng J - Článek v odborném periodiku
Maršík, František - Trávníček, Zdeněk
Rolling Turbines-Theoretical Considerations and Experimental Verification.
Journal of Energy Resources Technology-Transactions of the Asme. Roč. 144, č. 10 (2022), č. článku 102101. ISSN 0195-0738. E-ISSN 1528-8994
Grant CEP: GA ČR(CZ) GC21-26232J
Institucionální podpora: RVO:61388998
Klíčová slova: water turbine * renewable energy * flow stability
Obor OECD: Thermodynamics
Impakt faktor: 3, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1115/1.4053785

Rolling turbines are fluid motors which may be used in pico hydro applications at very small hydraulic heads of below 1 m, and can operate even with untapped (waste) water. The present study proposes a theory of their operation, based on the hydrodynamic stability of vortices. The rotor, which is the key element, performs a precession motion, rotating concurrently around its axis while processing around another (precession) axis. The theoretical results were experimentally validated. The tested rolling turbines operate with an efficiency of 43% to 48% at a hydraulic head of between 0.5 and 1.6 m.
Trvalý link: http://hdl.handle.net/11104/0331303