Results 11 to 20 of about 247 (148)

A Constant-Pressure Hydraulic PTO System for a Wave Energy Converter Based on a Hydraulic Transformer and Multi-Chamber Cylinder [PDF]

open access: yesEnergies, 2021
This paper presents a constant-pressure hydraulic PTO system that can convert stored pressure energy into electrical energy at a stable speed through hydraulic motors and generators.
Chenglong Li   +6 more
doaj   +2 more sources

Hydraulic Experiments on a Small-Scale Wave Energy Converter with an Unconventional Dummy Pto [PDF]

open access: yesEnergies, 2019
This paper investigates on a Wave Energy Converter (WEC) named Energy & Protection, 4th generation (EP4). The WEC couples the energy harvesting function with the purpose of protecting the coast from erosion.
Luca Martinelli   +3 more
doaj   +2 more sources

Experimental Performance Evaluation of a Hydraulic PTO System for Centipede Wave Energy Converter [PDF]

open access: yesInternational Journal of Coastal and Offshore Engineering, 2020
In the past decade, ocean and marine waves like other renewable energy sources attracted attention due to its high energy density. The most important part of a wave energy converter (WEC) is power take-off (PTO) system.
Mozhgan Aghanezhad   +2 more
doaj   +2 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

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

Experimental and CFD Assessment of Harmonic Characteristics of Point-Absorber Wave-Energy Converters with Nonlinear Power Take-Off System

open access: yesJournal of Marine Science and Engineering, 2023
The wave-energy excitation of point absorbers is highly associated with their resonant movement, and harmonic characteristics are of increasing concern in affecting resonance.
Yang Yi   +6 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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