نتایج جستجو برای: pump as turbine

تعداد نتایج: 5694027  

Journal: :Water 2021

The present research depicts an analysis of the implementation computational fluid dynamics (CFD) in study pumps such as turbines and PATs. To highlight benefits CFDs for PAT studies, results from both experimental tests have been compared to better understand reproduction error phenomena. For this, data used successful models has applied determine variables parameters, report a low relative er...

2013
Andrew Shires

The blades of a vertical axis wind turbine (VAWT) rotor see an inconsistent angle of attack through its rotation. Consequently, VAWT blades generally use symmetrical aerofoils with a lower lift-to-drag ratio than cambered aerofoils tailored to maximise horizontal axis wind turbine rotor performance. This paper considers the feasibility of circulation controlled (CC) VAWT blades, using a tangent...

2012
Fateh Benchabane Abdenacer Titaouine Ouafae Bennis Abderazak Guettaf Khaled Yahia Djamel Taibi

This paper presents an analysis by which the dynamic performances of a permanent magnet synchronous motor (PMSM) motor is controlled through a hysteresis current loop and an outer speed loop with different controllers. The dynamics of the wind turbine pumping drive system with (PI) and a fuzzy sliding mode (FSM) speed controllers are presented. In order to optimize the overall system efficiency...

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