Horizontal Axis Wind Turbine
Mostrando 1-10 de 10 artigos, teses e dissertações.
-
1. Acoustic Emissions from Wind Turbine Blades
ABSTRACT Research on broadband aerodynamic noise from wind turbine blades is becoming important in several countries. In this work, computer simulation of acoustic emissions from wind turbine blades are predicted using quasi empirical model for a three-bladed horizontal axis 3 MW turbine with blade length ~47 m. Sound power levels are investigated for source
J. Aerosp. Technol. Manag.. Publicado em: 10/10/2019
-
2. Vibration control device for steel tubular towers of Horizontal Axis Wind Turbines
Abstract This paper presents and discusses the design of a vibration control device for a 120 m high steel tubular tower of onshore Horizontal Axis Wind Turbine (HAWT). The tower is modeled using beam (own code), and shell and solid finite elements (via ANSYS). The Dynamic Vibration Absorber (DVA) is designed to be attached to the tower top, aiming to analyz
Lat. Am. j. solids struct.. Publicado em: 10/07/2019
-
3. Effect of Boundary Layer and Rotor Speed on Broadband Noise from Wind Turbines
ABSTRACT: Trailing edge surface of aerofoil is an important source of broadband aerodynamic noise production. In this paper, three aerofoil self-noise mechanisms from turbulent boundary layer near trailing edge surface are studied. Numerical computations were performed for a three bladed 2 MW horizontal axis upwind turbine of blade length 37 m and source hei
J. Aerosp. Technol. Manag.. Publicado em: 03/06/2019
-
4. Numerical Study of Wake Characteristics in a Horizontal-Axis Hydrokinetic Turbine
ABSTRACT Over the years most studies on wake characteristics have been devoted to wind turbines, while few works are related to hydrokinetic turbines. Among studies applied to rivers, depth and width are important parameters for a suitable design. In this work, a numerical study of the wake in a horizontal-axis hydrokinetic turbine is performed, where the ma
An. Acad. Bras. Ciênc.. Publicado em: 01/12/2016
-
5. Unsteady Blade Element-Momentum Method Including Returning Wake Effects
ABSTRACT: The wind energy research has grown substantially in the past few years, considerably fostered by the pursuit for a clean and sustainable energy source. Improvements on the design methods are increasingly needed. The purpose of this research is to investigate the use of the Loewy's lift deficiency function (LDF), also named Returning Wake Model, cou
J. Aerosp. Technol. Manag.. Publicado em: 2013-03
-
6. Simulação de grandes escalas para análise numérica da esteira aerodinâmica da turbina eólica NREL UAE Phase VI
The Unsteady Aerodynamics Experiment Phase VI, which has been carried out in 2000 by the US National Renewable Energy Laboratory (NREL) at the NASA Ames wind tunnel, has been numerically reproduced. The purpose of this work is to study the characteristics of the wind wake produced by the 10 meter two bladed wind turbine, operating at a constant rotational sp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
-
7. Estudo de rotor para turbina eólica de eixo horizontal de pequeno porte com aplicação de modelagem e simulação virtual / Study for small horizontal axis wind turbine rotor with application of modeling and virtual simulation
Este trabalho apresenta um estudo para aerogerador de pequeno porte projetado inicialmente para uso residencial. A ênfase está na modelagem e simulação virtual da estrutura das pás em compósito de fibra de vidro. A modelagem geométrica foi feita com software para desenho assistido por computador (CAD 3D). Para o projeto, foi escolhido o perfil MH110 q
Publicado em: 2011
-
8. Análise numérica da esteira aerodinâmica formada por uma turbina eólica com dimensionamento ótimo de Betz
A evolução do uso da energia eólica nas últimas décadas está diretamente relacionada ao desenvolvimento da tecnologia empregada na conversão e projeto das instalações. A viabilização de uma instalação eólica de grande porte depende da avaliação correta do potencial eólico. A fim de avaliar a capacidade de conversão de energia cinética do v
Publicado em: 2010
-
9. Modelagem e análise de desempenho dinâmico de complexos elétricos contendo centrais eólicas dotadas de geradores síncronos / Modeling and dynamic performance analysis of electric power systems containing wind installations equipped with synchronous generators
New generation resources, with low implantation and operation costs and that provoke the minimum possible impact to the environment, are undoubtedly focuses of attention to all the segments of the society. From this common sense, the alternative or renewable sources of energy, and particularly the wind, have certainly had a significant penetration in the com
Publicado em: 2007
-
10. Modelagem e anÃlise de desempenho dinÃmico de complexos elÃtricos contendo centrais eÃlicas dotadas de geradores sÃncronos / Modeling and dynamic performance analysis of electric power systems containing wind installations equipped with synchronous generators
New generation resources, with low implantation and operation costs and that provoke the minimum possible impact to the environment, are undoubtedly focuses of attention to all the segments of the society. From this common sense, the alternative or renewable sources of energy, and particularly the wind, have certainly had a significant penetration in the com
Publicado em: 2007