Browsing North American Wind Energy Academy 2015 Symposium by Issue Date
Now showing items 1-20 of 82
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Wind Farm Layout Optimization Considering Commercial Turbine Selection and Hub Height Variation
(Virginia Tech, 2015-06)New aspects is added to the wind farm layout optimization problem. A variable hub height non-identical turbines wind farm design is presented. The manufacturers' technical data for 61 commercial horizontal axis wind turbine ... -
Analysis of Tower Shadow Effects on the UAE Rotor Blades
(Virginia Tech, 2015-06)A leading obstacle hindering the development of wind turbines to extreme scale is the structural integrity of the blades. Downwind rotors have been shown to give structural advantages for larger systems. However, there is ... -
Bio-Inspired Trailing Edge Noise Control
(Virginia Tech, 2015-06)Trailing edge noise remains a primary limiting factor in the widespread implementation of wind turbines, particularly near populated areas. Noise regulations commonly require acoustic de-rating of existing turbines, leading ... -
High Performance Computing Analysis of Wind Turbine Response to Atmospheric Eddy Passage
(Virginia Tech, 2015-06) -
An Experimental Investigation on Surface Water Transport and Ice Accreting Process Pertinent to Wind Turbine Icing Phenomena
(Virginia Tech, 2015-06)Wind turbine icing represents the most significant threat to the integrity of wind turbines in cold weather. Ice accretion on turbine blades would decrease power production of the wind turbines significantly. Ice accretion ... -
Effects of Tip Injection and Mie Vanes on the Performance of a Model Wind Turbine Rotor
(Virginia Tech, 2015-06)This paper presents the results of an ongoing experimental investigation of the effects of tip injection, as well as V-shaped Mie Vanes on the performance of a model wind turbine rotor. Experiments are conducted by placing ... -
Modeling the variability of renewable generation and electrical demand in RTOs and cities using reanalyzed winds, insolation and temperature
(Virginia Tech, 2015-06)Wind and solar generation forecasts are used by electrical grid operators and utilities to predict the amount of electricity that will be required from non-renewable generation facilities. That is, they are typically ... -
Model and Procedures for Reliable Near Term Wind Energy Production Forecast
(Virginia Tech, 2015-06)Accurate and reliable prediction of wind energy production is important for the operational management of wind farm as well as for the stability of electrical grid with renewable energy integration. This paper describes a ... -
Comparison of Offshore Wind Turbine Reliability
(Virginia Tech, 2015-06)The results of a comparative probabilistic reliability model applied to offshore wind turbine systems is presented. The model calculations are based on surrogate failure rate data from industrial onshore wind turbine ... -
Wind Turbine Tower Fairing Geometries to Decrease Shadow Effects
(Virginia Tech, 2015-06)Tower fairings are a promising method to reduce wake for down wind turbines, with the drawback that the performance may be lost at high angles of attack. For example, the E863 airfoil has a much smaller wake than a cylinder ... -
Design of closed loop control for a wind turbine system coupled to a CV transmission system
(Virginia Tech, 2015-06)Grid integration of renewable energy sources has proven to be a popular and challenging problem that has been extensively studied and continues to be a focus of interest. Most modern wind energy conversion systems utilize ... -
Integrating Real-World Case Studies into Wind Energy Graduate Education
(Virginia Tech, 2015-06)Wind power continues to grow rapidly as a fuel source for the electric power industry in the US. Recent data for 2014 show that wind power in Texas alone delivered in excess of 10 percent of the annual electrical energy ... -
The Impact of Offshore Wind Turbines on Underwater Ambient Noise Levels
(Virginia Tech, 2015-06)The underwater sound levels generated by offshore wind turbine farms is a concern because of the possible environmental impact on marine mammals. This paper will consider how sound generated by a wind turbine is transmitted ... -
Application of Fast Pressure-Sensitive Paint to an Oscillating Wind Turbine Airfoil
(Virginia Tech, 2015-06)In the unsteady flow environment experienced by wind turbine blades, large excursions in local angle of attack and significant three-dimensional flows arise that complicate the prediction of stall onset and unsteady loading. ... -
Analysis of Turbine Wake Characteristics using Proper Orthogonal Decomposition and Triple Decomposition Methods
(Virginia Tech, 2015-06)In the present study, we report the progress made in our efforts to examine the wake flow characteristics behind a commonly-used three-bladed horizontal-axis wind turbine. A series of experiments were performed in a ... -
Flare Reduction Technique for Near-Surface Airfoil Boundary Layer Measurements with Laser Diagnostics
(Virginia Tech, 2015-06) -
Design and Development of an Integrated Avian and Bat Collision Detection System for Wind Turbines
(Virginia Tech, 2015-06) -
A game-theoretic framework to investigate the conditions for cooperation between energy storage operators and wind power producers
(Virginia Tech, 2015-06)Energy storage, has widely been accepted as a means to provide capacity firming service to renewable sources of energy due to its capability to quickly start and shut down and its ability to have flexible ramping rates. ... -
Aerodynamics and Aeroacoustics of Spanwise Wavy Trailing Edge Flatback Airfoils: Design Improvement
(Virginia Tech, 2015-06)The spanwise wavy trailing edge design considering its structural benefits was proposed and studied. The three dimensional RANS-LES simulation has been performed to reveal the aerodynamic and aeroacoustic behaviors of the ...
