Results 21 to 30 of about 5,844,916 (295)

Research on equivalent thermal network modeling for rare-earth giant magnetostrictive transducer

open access: yesScientific Reports, 2022
Of crucial importance for giant magnetostrictive transducers (GMTs) design is to quickly and accurately analysis the temperature distribution. With the advantages of low calculation cost and high accuracy, thermal network modelling has been developed for
Zhihe Zhang, Xin Yang, Yukai Chen
doaj   +1 more source

Matrixed modeling method and entropy generation minimization analysis of heat supply system based on standard thermal resistance

open access: yesEnergy Science & Engineering, 2023
Complex implicit expressions and many intermediate parameters are not conducive to the application of entropy generation optimization to the performance of thermal and energy systems from component and system perspectives.
Chenzhi Ju   +5 more
doaj   +1 more source

Research and Development of Nondestructive Detection Technology for Wind Turbine Blades

open access: yesZhongguo dianli, 2023
In addition to withstanding aerodynamic forces, blades also experience other forces such as gravity and centrifugal force during operation, as well as damage from rain, snow, sand, salt spray, lightning and other factors, making the wind turbine blade ...
Lei WANG   +4 more
doaj   +1 more source

Subjective–objective methodology on selection of power quality compensation technology in AC–DC network with electrified railways

open access: yesThe Journal of Engineering, 2019
Electrified railways contain DC devices and cause power quality (PQ) issues such as harmonics, unbalance, and low-power factor, which should be solved by the most effective compensation technology to reduce the cost.
Yizheng Xu   +3 more
doaj   +1 more source

Electrochemical Behavior and Passive Film Properties of Hastelloy C22 Alloy, Laser-Cladding C22 Coating, and Ti–6Al–4V Alloy in Sulfuric Acid Dew-Point Corrosion Environment

open access: yesMetals, 2022
The electrochemical behavior and passive film properties of Hastelloy C22 alloy, laser-cladding C22 coating, and Ti–6Al–4V alloy in sulfuric acid dew-point corrosion environment were investigated through a combination of electrochemical measurements and ...
Chao Zheng   +5 more
doaj   +1 more source

A Double Update PWM Method to Improve Robustness for the Deadbeat Current Controller in Three-Phase Grid-Connected System

open access: yesJournal of Electrical and Computer Engineering, 2018
In the grid-connected inverter based on the deadbeat current control, the filter inductance variation and single update PWM affect the distortion of the grid current, stability, and dynamic of the system.
Ling Yang   +8 more
doaj   +1 more source

Joint generation and voyage scheduling for photovoltaic integrated all-electric ships

open access: yesThe Journal of Engineering, 2019
with the onboard diesel generators and energy storage system to meet the propulsion and service load, the all-electric ship (AES) can be viewed as a ‘mobile microgrid’.
Sidun Fang   +3 more
doaj   +1 more source

Preparation of Sulfur-doped Porous Carbon and Its Electro-adsorption Performance for Heavy Metals in Desulfurization Wastewater

open access: yes发电技术, 2023
Heavy metal pollution in desulfurization wastewater from coal-fired power plants has huge potential harm to the environment. Among them, the problem of heavy metal ions such as Pb2+, Cd2+ and Cr3+ is particularly prominent. Efficient and targeted removal
YIN Taozhu   +3 more
doaj   +1 more source

Power Control and Fault Ride-Through Capability Analysis of Cascaded Star-Connected SVG under Asymmetrical Voltage Conditions

open access: yesEnergies, 2019
The cascaded H-bridge static var generator (SVG) has been employed to provide reactive power and regulate grid voltages for many years because of its good modularity, easy scalability, and improved harmonic performance.
Muxuan Xiao   +5 more
doaj   +1 more source

Renewable Energy Communities in Islands: A Maltese Case Study

open access: yesEnergies, 2022
Renewable energy communities are considered as key elements for transforming the present fossil fuel-based energy systems of islands into renewable-based energy systems.
Alexander Micallef   +2 more
doaj   +1 more source

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