Results 51 to 60 of about 2,034 (236)

Bio‐Inspired Gradient Coatings Enhance the Leading Edge Erosion Resistance of Wind Blades

open access: yesAdvanced Science, EarlyView.
Rain‐induced erosion of the wind turbine blade leading edge poses a critical challenge to maintenance and operation. Here, we propose a bio‐inspired approach for erosion protection utilising a platelet‐reinforced polyurethane coating with a graded through‐thickness architecture.
Natalia Sofia Guevara‐Sotelo   +2 more
wiley   +1 more source

Deciphering Intricacies in Directional CO2 Conversion From Electrolysis to CO2 Batteries

open access: yesAdvanced Energy Materials, EarlyView.
This review will delve into the inherent connections and distinctions of CO2‐directed conversion in ECO2RR and CO2 batteries, in terms of product types, catalyst selection, catalytic mechanisms, and electrochemical performances, while proposing a benchmarking framework for the evaluation of CO2 batteries and innovative CO2 battery configurations for ...
Changfan Xu   +5 more
wiley   +1 more source

Modeling analysis of the mean flow velocity ahead of a rotating tidal turbine

open access: yesInternational Marine Energy Journal
This paper presents a novel method for modeling the mean radial velocity component ahead of a rotating tidal turbine. Firstly, it examines a recent hybrid model designed to reconstruct the three-dimensional mean  axial flow field in front of an ...
Philippe Druault   +1 more
doaj   +1 more source

On the Chief Dimensions of an Axial Flow Propeller Turbine

open access: yesTransactions of the Society of Mechanical Engineers, 1935
軸流プロペラ水車に於て導き羽根入口から羽根車入口迄の損失、羽根車内の損失、羽根車出口から下水溝迄の損失の合計が最小になる様な條件から水車寸法を決定するに必要な諸係數を比較回轉度の函數として示したものである。
openaire   +3 more sources

Bioconvective Unsteady Casson Hybrid Nanofluid Flow on a Variable Darcy Regime Between Two Rotating Disks With Variable Heat Source

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study carries significant consequences in various engineering applications, such as cooling rotating disk surfaces, improving chemical reactor performance, and designing filtration systems. Considering these main applications in view, the aim of this study is to investigate time‐dependent Casson hybrid nanofluid flow on a permeable ...
Ebrahem A. Algehyne   +6 more
wiley   +1 more source

NUMERICAL SIMULATION OF PERFORMANCE OF AN AXIAL TURBINE FIRST STAGE DOI 10.5028/jatm.2012.04025411

open access: yesJournal of Aerospace Technology and Management, 2012
This work has presented the first stage performance at design and off-design operating points of an axial turbine, with two stages using a numerical simulation.
Vinícius Guimarães Monteiro   +3 more
doaj  

Streamline and Isotherm Visual Analysis of Darcy–Forchheimer von Karman Spinning Flow of Maxwell Fluid Over a Stretching Disk With Quadratic Temperature‐Dependent Heat Source

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This research paper provides an extensive study of the effects of Darcy–Forchheimer von‐Karman spinning flow of Maxwell fluid across a stretching disk including the effect of heat generation based on a nonlinear function of temperature. The flow system is influenced by thermal radiations and Arrhenius activation energy.
Ebrahem A. Algehyne   +6 more
wiley   +1 more source

DIMENSIONING AND PERFORMANCE ANALYSIS OF AN AXIAL HYDRAULIC TURBINE OF HIGH POWER/WEIGHT RATIO

open access: yesTASK Quarterly, 2002
The purpose of this research is to develop a methodology for dimensioning and performance analysis of a stage of Hydraulic Axial Flow Turbines of High Power to Weight Ratio (HAFT-HPWR).
FRANK KENYERY   +2 more
doaj  

Axial Thrust, Disk Frictional Losses, and Heat Transfer in a Gas Turbine Disk Cavity

open access: yesEnergies, 2019
The gas turbine is a kind of high-power and high-performance energy machine. Currently, it is a hot issue to improve the efficiency of the gas turbines by reducing the amount of secondary air used in the disk cavity. The precondition is to understand the
Bo Hu   +5 more
doaj   +1 more source

Cooling Holes in Polymer Spur Gears: A Critical Analysis of Heat Dissipation Benefits and Mesh Stiffness Penalties

open access: yesJournal of Applied Polymer Science, EarlyView.
Cooling holes provide a simple passive cooling strategy for polymer spur gears, reducing maximum operating temperature by up to 9.39% while introducing a measurable gear mesh stiffness penalty. A validated response‐surface model reveals how hole size and location govern this thermal–mechanical trade‐off, enabling design optimization for thermally and ...
Abderrahim Baccar   +5 more
wiley   +1 more source

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