Results 41 to 50 of about 311,390 (313)
Advanced Engineering Materials, EarlyView.Freeze‐drying of layered silicate is the key to get coatings with superior gas barrier. Freeze‐drying of layered silicates modified with dodecylamine (DDA) is a highly effective technique for the preparation of barrier pigments that significantly mitigate the permeation of oxygen, water vapor, and hydrogen through polymer films containing these ...
Joshua Lommes +4 more
wiley +1 more source
Improved Blade Design for Tidal Current Turbines
Energies, 2020 The efficiency and reliability of blades are key indicators for a tidal current turbine (TCT). A traditional blade design is often an empirical design on hydrodynamics and structure, sequentially. A hydrofoil with a low lift–drag ratio is considered when
Hongwei Liu +5 more
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Energy Reports, 2022 In order to overcome the problems of low efficiency and poor results of classical optimization methods, an efficient, intelligent, and reliable method for optimizing the shape of the blades of the Savonius wind turbine is proposed in this paper. Firstly,
Huaijie Xia +4 more
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North Wind 4kW passive control system design [PDF]
, 1981 An overview of a mechanical rotor control design is presented. Operation at constant RPM and rapid response are obtained by using blade pitch moments for both sensing control need and blade pitch actuation. The basic concept, static or equilibrium design,
Currin, H.
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Advanced Engineering Materials, EarlyView.The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal +2 more
wiley +1 more source
EFFECT OF IMPELLER BLADE THICKNESS ON CRITICAL IMPELLER SPEED IN AN AGITATED VESSEL
Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2017 The successful design and operation of solid-liquid agitators require proper prediction of critical impeller speed (Njs) needed to suspend solids. It depends on system and impeller geometry as well as the properties of both solid and liquid.
LOGANATHAN MURUGANANDAM +1 more
doaj
Aquatic Emission and Properties Analysis for Wind Turbine Blades
Advances in Materials Science and Engineering, 2022 In light of rising energy demand, solar and wind power are popular renewable energy sources. A need for the hour is for reliable little wind power at a reasonable price.
R. Jai Ganesh +5 more
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Design of Optimum Torsionally Flexible PropRotors for Tilt-Body MAVs [PDF]
, 2012 This paper presents a methodology to design the optimum proprotor for tilt-body microair-vehicles (TB-MAV) with efficient global propulsion system and long flight endurance in both cruise and hover modes.
Grondin, Gilles +3 more
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Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
An Aerodynamic Optimization Approach for Wind Turbine Blades Using Proper Generalized Decomposition
EnergiesA new approach for optimizing the blade profile of a horizontal axis wind turbine is proposed in this paper, based on the combination of the Blade Element Momentum (BEM) method and Proper Generalized Decomposition (PGD).
Nacer Eddine Boumezbeur, Arezki Smaili
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