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Mostrando ítems 31-40 de 164
Inserção de dispositivos passivos para a mitigação do vórtice de corda em uma turbina hidráulica do tipo Francis
(Universidade Estadual Paulista (Unesp), 2022-02-04)
A maior parte da energia elétrica gerada no Brasil é proveniente das hidrelétricas, reconhecida por ser uma fonte de energia renovável e não intermitente que pode adequar o despacho conforme a demanda da rede elétrica. A ...
Vibrações em turbina francis com enfase em vertice de nucleo
([s.n.], 1987)
Numerical study of the effect of winglets on the performance of a straight blade darrieus water turbine
(MDPI, 2018-01-28)
This study deals with the three-dimensional unsteady numerical simulation of the flow around a cross-flow vertical-axis water turbine (CFWT) of the Darrieus type. The influence of turbine design on its hydrodynamic ...
Modelagem matemática para otimização de um potencial hidráulico utilizando turbinas Francis e Kaplan
(Universidade Estadual Paulista (UNESP), 2016)
Application of variable speed operation on Francis turbines
(Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ingeniería, 2015-01-01)
Francis turbines that are directly coupled to a synchronous generator operate at constant rotational speed around a design point characterized by a given water head, flow and guide vane aperture. When important changes ...
Simulación numérica (CFD) de turbinas Francis
(IMPRENTA UNIV ANTIOQUIAUniversidad EAFIT. Departamento de Ingeniería Mecánica, 2010-01-01)
In this paper the description of the internal flow in a Francis turbine is addressed from a numerical point of view. The simulation methodology depends on the objectives. On the one hand, steady simulations are able to ...
Energia hidrelétrica: eficiência na geração
(Universidade Federal de Santa MariaCentro de Tecnologia, 2014)
Hydro power generation is one of the oldest in the world and used options. This transformation occurs when water passes through the hydraulic turbine that transforms hydraulic power into mechanical power. The turbine rotates ...
Entwicklung eines rotordynamischen Schwingungsmodells zur technischen Diagnose einer Francis-Turbine
(Springer-VDI-Verlag, 2009-01-01)
Hydrodynamic characterisation of a garman-type hydrokinetic turbine
(MDPI, 2021-05)
This paper presents a numerical study of the effects of the inclination angle of the turbine
rotation axis with respect to the main flow direction on the performance of a prototype hydrokinetic
turbine of the Garman type. ...