Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Characteristics of a micro-hydro turbine
Computational Fluid Dynamics, a crucial tool in exploring designs of hydraulic machinery, is used to evaluate the design of a non-uniform Archimedean spiral rotor. A transient simulation method is implemented using a frame of reference change between time-steps to capture the flow field correctly. The boundary conditions for this method are discussed and are validated with previously published experimental data using a flat plate propeller turbine. A spectral and temporal convergence study for the non-uniform Archimedean spiral rotor is performed to verify solution independence of mesh and time-step selection. Performance characteristics of the rotor are provided over a wide range of volumetric flow rates and rotation rates. The best hydraulic efficiency point is determined to be 72% for the presented rotor design and is compared with the performance of similar micro-hydro turbines.
Characteristics of a micro-hydro turbine
Computational Fluid Dynamics, a crucial tool in exploring designs of hydraulic machinery, is used to evaluate the design of a non-uniform Archimedean spiral rotor. A transient simulation method is implemented using a frame of reference change between time-steps to capture the flow field correctly. The boundary conditions for this method are discussed and are validated with previously published experimental data using a flat plate propeller turbine. A spectral and temporal convergence study for the non-uniform Archimedean spiral rotor is performed to verify solution independence of mesh and time-step selection. Performance characteristics of the rotor are provided over a wide range of volumetric flow rates and rotation rates. The best hydraulic efficiency point is determined to be 72% for the presented rotor design and is compared with the performance of similar micro-hydro turbines.
Characteristics of a micro-hydro turbine
Schleicher, W. (Autor:in) / Ma, H. (Autor:in) / Riglin, J. (Autor:in) / Kraybill, Z. (Autor:in) / Wei, W. (Autor:in) / Klein, R. (Autor:in) / Oztekin, A. (Autor:in)
01.01.2014
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| British Library Conference Proceedings | 1993
Chaotic dynamic characteristics of pressure fluctuation signals in hydro-turbine
| British Library Online Contents | 2016
Effect of blade perforation on Francis hydro-turbine cavitation characteristics
| Taylor & Francis Verlag | 2014
Effect of blade perforation on Francis hydro-turbine cavitation characteristics
| Online Contents | 2014