Results 11 to 20 of about 10,072 (199)

Wave-to-Wire Modelling and Hydraulic Pto Optimization of a Dense Point Absorber Wec Array

open access: yesRenewable Energy
We investigate the hydrodynamic interactions and power extraction efficiency of a dense array of Point Absorber (PA) Wave Energy Converters (WECs) clustered around the fixed pillar of a wind turbine –the Ocean Grazer device– with a standard hydraulic Power Take-Off (PTO) system. Using potential flow theory, a detailed wave-to-wire model is developed in
Andreas T. Asiikkis   +2 more
openaire   +4 more sources

Control of Wave Energy Converters with Discrete Displacement Hydraulic Power Take-Off Units

open access: yesJournal of Marine Science and Engineering, 2018
The control of ocean Wave Energy Converters (WECs) impacts the harvested energy. Several control methods have been developed over the past few decades to maximize the harvested energy.
Shangyan Zou, Ossama Abdelkhalik
doaj   +3 more sources

Assembled PTO based on an array of double-acting hydraulic cylinders for WECs: From Conceptual Design to an Adjusted Detailed Model [PDF]

open access: yes, 2015
All Wave Energy Converters (WECs) based on wave activated bodies comprises a Power Take- Off (PTO) system among other subsystems like the reaction mechanism, the supervisor of the system and the electrical generator. One of the most applied PTO systems
Antolín-Urbaneja, Juan Carlos   +5 more
core   +3 more sources

Research on Thermodynamic Characteristics of Hydraulic Power Take-Off System in Wave Energy Converter

open access: yesEnergies, 2022
Hydraulic power-take-off (PTO) systems which utilize high-pressure oil circuits to transmit energy are widely applied in wave energy generation. The properties of hydraulic oil are significantly influenced by environmental conditions, and its dynamic ...
Yubo Niu   +5 more
doaj   +1 more source

Inflammatory Microenvironment-Responsive Hydrogels Enclosed with Quorum Sensing Inhibitor for Treating Post-Traumatic Osteomyelitis. [PDF]

open access: yesAdv Sci (Weinh)
Inflammatory microenvironment targeted hydrogel promotes osteogenesis and inhibits inflammation in post‐traumatic osteomyelitis by responding to severe oxidative stress or acid abscess environment, and subsequently releasing quorum sensing inhibitors. It can inhibit “bacteria‐to‐bacteria communication” to clear planktonic bacteria and biofilms, reduce ...
Zhang W   +8 more
europepmc   +2 more sources

Modeling and Simulation of Hydraulic Power Take-Off Based on AQWA

open access: yesEnergies, 2022
The AQWA software is often used to perform hydrodynamic analysis, and it is highly convenient for performing frequency domain simulations of Pelamis-like wave energy converters.
Qitao Huang   +3 more
doaj   +1 more source

Maximum Power Control Algorithm for Power Take-Off System Based on Hydraulic System for Floating Wave Energy Converters

open access: yesJournal of Marine Science and Engineering, 2022
In this study, a hydraulic system generator power converter was modeled to verify the performance of a hydraulic-based power take-off (PTO) system. Moreover, the characteristics and output performance of the PTO system were analyzed with various load ...
Chan Roh
doaj   +1 more source

MPPT Control of Hydraulic Power Take-Off for Wave Energy Converter on Artificial Breakwater

open access: yesJournal of Marine Science and Engineering, 2020
Wave energy is a renewable energy source that is green, clean and has huge reserves. In order to develop wave energy resources, an oscillating buoy Wave Energy Converter (WEC) device based on the artificial breakwater is presented in this paper. In order
Jianan Xu   +4 more
doaj   +1 more source

Control Parameters Optimization of Accumulator in Hydraulic Power Take-Off System for Eccentric Rotating Wave Energy Converter

open access: yesJournal of Marine Science and Engineering, 2023
To improve the efficiency and stability of an eccentric rotating wave energy converter (ERWEC), the adaptive hydraulic power-take-off (PTO) system with an accumulator is designed and developed.
Gang Xue   +4 more
doaj   +1 more source

Assessment of microbial biocontrol agent (BCA) viability to mechanical and thermal stress by simulating spray application conditions

open access: yesPest Management Science, Volume 79, Issue 11, Page 4423-4438, November 2023., 2023
The spray mixture residual amount in the tank affects its temperature increase rate. Only temperatures >35 C° were detrimental for BCAs. BCA viability is affected mostly by thermal rather than mechanical stress. Abstract Background In order to improve the biological control agent (BCA) efficacy, stress factors threatening the viability of ...
Marco Grella   +10 more
wiley   +1 more source

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