Currently, most wind turbine performance analyses and simulations are performed assuming constant pitch yaw angles during each rotation. Nevertheless, induced vibration or rotor imbalance can affect the angle within In this study, effects of low-amplitude sinusoidal oscillations blade on a was investigated numerically by comparing it against baseline (without variations). Large eddy were in whi...

The harsh weather conditions offshore wind turbine blades are working under have necessitated the need for a more effective approach detecting their failures. Dynamic characteristics e.g., vibration, carry useful information related to structural health. Critical analysis of blade’s free vibration represents one fundamental steps assessing dynamics. When rotating blade deflects, either in plane...

This study investigated the performance and aeroelastic characteristics of a wind turbine blade based on strongly coupled approach (two-way fluid structure interaction) to simulate the transient FSI1 responses of HAWT2. Aerodynamic response was obtained by 3D CFD-URANS approach and structural response was obtained by 3D Finite element method. Aeroelastic responses of the blade were obtained by ...

The high molar absorption coefficient organic D-π-A dye C220 exhibits more than 6% certified electric power conversion efficiency at AM 1.5G solar irradiation (100 mW cm(-2)) in a solid-state dye-sensitized solar cell using 2,2',7,7'-tetrakis(N,N-dimethoxyphenylamine)-9,9'-spirobifluorene (spiro-MeOTAD) as the organic hole-transporting material. This contributes to a new record (6.08% by NREL) ...

Sandia National Laboratories, the National Renewable Energy Laboratory, and the University of Iowa are collaborating to develop a performance model for bifacial PV modules. As with monofacial PV modules, a bifacial PV model consists of sequential operation of the component sub-models. Bifacial PV modules accept light on both their front and rear surfaces which presents a unique modeling challen...