Results 11 to 20 of about 49,277 (114)

Total Synthesis of an Experimental Antitubercular Drug CDRI-830

open access: yesSynthetic Communications, 2014
The triarylmethane antituberculosis drug CDRI-830 is synthesized. The triarylmethane derivative 4 is prepared from ether 6 by a rearrangement process.
Veera reddy Arava (554372)   +2 more
core   +2 more sources

A numerical study of tilt‐based wake steering using a hybrid free‐wake method

open access: yesWind Energy, 2020
This study investigates the potential of using tilt‐based wake steering to alleviate wake shielding problems experienced by downwind turbines. Numerical simulations of turbine wakes have been conducted using a hybrid free‐wake analysis combining vortex ...
Keye Su, Donald Bliss
doaj   +1 more source

A Metric Space with LCOE Isolines for Research Guidance in wind and hydrokinetic energy systems

open access: yesWind Energy, 2020
This paper introduces a new Metric Space to guide the design of advanced wind energy systems and hydrokinetic energy converters such as tidal, ocean current and riverine turbines.
Mario Garcia‐Sanz
doaj   +1 more source

Physics based modeling of dust accumulation on a bifacial solar PV module for generation loss estimation due to soiling

open access: yesSolar Energy Advances, 2023
In this paper, a physics-based model for dust accumulation on the front and rear surfaces of a bifacial module is presented. The accumulation on both the surfaces is assessed considering deposition, rebound and resuspension phenomena.
Saheli Sengupta   +3 more
doaj   +1 more source

Mode decomposition approach in robust control design for horizontal axis wind turbines

open access: yesWind Energy, 2020
A robust multivariable strategy for pitch and torque control design of variable‐speed variable‐pitch wind turbines in the full load region is introduced in this paper.
Ali Poureh, Amin Nobakhti
doaj   +1 more source

Comparative study between PI, FLC, SMC and Fuzzy sliding mode controllers of DFIG wind turbine

open access: yesRevue des Énergies Renouvelables, 2023
In speed control, double-fed-induction generator (DFIG) has attracted attention in wind energy conversion systems (WECs). These systems can offer higher performances by controlling converters that connect the generator windings to the grid network ...
Zahira Bouguerra
doaj   +1 more source

Machine learning–based piecewise affine model of wind turbines during maximum power point tracking

open access: yesWind Energy, 2020
In this paper, a discrete‐time piecewise affine (PWA) model of a wind turbine during Maximum Power Point Tracking (MPPT) region is identified. A clustering‐based identification method is utilized to create PWA maps for nonlinear aerodynamic torque and ...
Peyman Sindareh‐Esfahani, Jeff Pieper
doaj   +1 more source

Large eddy simulation study of the humidity variation in the shadow of a large wind farm

open access: yesWind Energy, 2020
Numerous studies have shown that wind turbine wakes within a large wind farm bring about changes to both the dynamics and thermodynamics of the atmospheric boundary layers (ABL). Previously, we investigated the relative humidity budget within a wind farm
John Stephen Haywood   +2 more
doaj   +1 more source

The aerodynamics of the curled wake: a simplified model in view of flow control [PDF]

open access: yesWind Energy Science, 2019
When a wind turbine is yawed, the shape of the wake changes and a curled wake profile is generated. The curled wake has drawn a lot of interest because of its aerodynamic complexity and applicability to wind farm controls.
L. A. Martínez-Tossas   +3 more
doaj   +1 more source

The value of airborne wind energy to the electricity system

open access: yesWind Energy, 2022
Airborne wind energy (AWE) is a new power generation technology that harvests wind energy at high altitudes using tethered wings. The potentially higher energy yield, combined with expected lower costs compared to traditional wind turbines (WTs ...
Elena C. Malz   +3 more
doaj   +1 more source

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