Results 31 to 40 of about 5,624,947 (339)

The effect of pump diameter and penstock pipe on the electric power of a hybrid generator [PDF]

open access: yesE3S Web of Conferences
Ocean Wave Power Plants (WEC) are divided into 6 types, namely (1) Point Absorber, (2) Oscillating Water Column, (3) Pressure Differential Submerger, (4) Oscillating Wave Surge Converter, (5) Attenuator & Terminator, and ( 6) Removable Devices.
Subekti Massus, Parjiman
doaj   +1 more source

A Statistical Analysis for Optimisation of a Hybrid BBDB-PA in Mantanani Island, Sabah

open access: yesJournal of Marine Science and Engineering, 2023
The hybrid form of wave energy converter (WEC) is a recent advancement in research concerning harvesting energy from the ocean. This study investigates the effect of size and position of the point absorber integrated with a backward bent duct buoy.
Muhamad Aiman Jalani   +6 more
doaj   +1 more source

Optimal Constant DC Link Voltage Operation of aWave Energy Converter

open access: yesEnergies, 2013
This article proposes a simple and reliable damping strategy for wave powerfarm operation of small-scale point-absorber converters. The strategy is based on passiverectification onto a constant DC-link, making it very suitable for grid integration of the
Mats Leijon   +2 more
doaj   +1 more source

Cost-Based Design and Selection of Point Absorber Devices for the Mediterranean Sea

open access: yesEnergies, 2018
Sea wave energy is one of the most promising renewable sources, even if relevant technology is not mature enough for the global energy market and is not yet competitive if compared with solar, wind and tidal current devices.
Vincenzo Piscopo   +3 more
doaj   +1 more source

Evidence for an intermediate mass black hole and a multi-zone warm absorber in NGC 4395 [PDF]

open access: yes, 2003
We report on the results of an analysis in the X-ray band of a recent long ASCA observation of NGC 4395, the most variable low-luminosity AGN known. A relativistically-broadened iron line at ~6.4 keV is clearly resolved in the time-averaged spectrum ...
Fabian, A. C., Iwasawa, K., Shih, D. C.
core   +3 more sources

Energy Conversion: A Comparison of Fix- and Self-Referenced Wave Energy Converters

open access: yesEnergies, 2016
The paper presents an investigation of fix-referenced and self-referenced wave energy converters and a comparison of their corresponding wave energy conversion capacities from real seas. For conducting the comparisons, two popular wave energy converters,
Wanan Sheng, Tony Lewis
doaj   +1 more source

Assessment of Renewable Sources for the Energy Consumption in Malta in the Mediterranean Sea

open access: yesEnergies, 2016
The main purpose of this paper is to analyze the energy production in the Maltese islands, focusing on the employment of renewable energies in order to increase their energy independence.
Vincenzo Franzitta   +3 more
doaj   +1 more source

Wave Energy Converter’s Slack and Stiff Connection: Study of Absorbed Power in Irregular Waves

open access: yesEnergies, 2021
Two different concepts of wave energy converter coupled to the novel C-GEN linear generator have been studied numerically, including the evaluation of different buoy sizes.
Tatiana Potapenko   +3 more
doaj   +1 more source

Discovery of a Metal-Line Absorber Associated with a Local Dwarf Starburst Galaxy [PDF]

open access: yes, 2006
We present optical and near-infrared images, H I 21 cm emission maps, optical spectroscopy, and Hubble Space Telescope/Space Telescope Imaging Spectrograph ultraviolet spectroscopy of the QSO/galaxy pair SBS 1122+594/IC 691.
Babul A.   +6 more
core   +3 more sources

Investigations into Balancing Peak-to-Average Power Ratio and Mean Power Extraction for a Two-Body Point-Absorber Wave Energy Converter

open access: yesEnergies, 2021
The power harnessed by wave energy converters (WECs) in oceans is highly variable and, therefore, has a high peak-to-average power (PTAP) ratio. To minimize the cost of a WEC power take off (PTO) system, it is desirable to reduce the PTAP ratio while ...
H. Karayaka, Yi-Hsiang Yu, E. Muljadi
semanticscholar   +1 more source

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