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Novel ocean energy permanent magnet linear generator buoy
Rhinefrank, K.; Agamloh, E.B.; von Jouanne, A.; … - In: Renewable Energy 31 (2006) 9, pp. 1279-1298
drive permanent magnet linear generator buoy. The buoy employs the vertical component of the motion of ocean waves to power …) and an armature, in which the power is generated (mounted on the buoy). The translator shaft is anchored to the sea floor …, and the buoy/floater moves armature coils relative to the permanent magnet translator to induce voltages. The electrical …
Persistent link: https://www.econbiz.de/10010806138
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A novel direct-drive ocean wave energy extraction concept with contact-less force transmission system
Agamloh, Emmanuel B.; Wallace, Alan K.; von Jouanne, Annette - In: Renewable Energy 33 (2008) 3, pp. 520-529
flume test results of the buoy in irregular waves. …
Persistent link: https://www.econbiz.de/10010805070
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Hysteretic characteristics of Wells turbine for wave power conversion
Setoguchi, T.; Kinoue, Y.; Kim, T.H.; Kaneko, K.; Inoue, M. - In: Renewable Energy 28 (2003) 13, pp. 2113-2127
A Wells turbine blade for wave power conversion has hysteretic characteristics in a reciprocating flow. The hysteretic loop is opposite to the well-known dynamic stall of an airfoil. In this paper, the mechanism of the hysteretic behavior was elucidated by an unsteady 3-dimensional Navier-Stokes...
Persistent link: https://www.econbiz.de/10010805104
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Analysis and optimization of a tethered wave energy converter in irregular waves
Bachynski, Erin E.; Young, Yin Lu; Yeung, Ronald W. - In: Renewable Energy 48 (2012) C, pp. 133-145
An understanding of the fundamental system dynamics of wave energy converters (WECs) is required to safely and reliably benefit from the available wave energy resource to produce electricity. The effects of the geometry, mooring system, and mass distribution on the idealized power takeoff of a...
Persistent link: https://www.econbiz.de/10010805394
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Integrating ocean wave energy at large-scales: A study of the US Pacific Northwest
Parkinson, Simon C.; Dragoon, Ken; Reikard, Gordon; … - In: Renewable Energy 76 (2015) C, pp. 551-559
This paper assesses operational impacts of large-scale ocean wave energy development in the US Pacific Northwest. High-resolution wave power production and forecasting data is synthesized for wave energy arrays spatially-distributed along the region's coast. Geographic diversification is found...
Persistent link: https://www.econbiz.de/10011189959
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The Impact of Electrostatic Forces on the Dynamic and Heat Transfer Coefficient of Single Bubble Rising: Electrostatic Forces Effect on the Dynamic of Single Bubble Rising by CFD
Salehi, Mohammad Ali; Poursaman, Samaneh - In: International Journal of Chemoinformatics and Chemical … 5 (2016) 2, pp. 35-46
In this study, the effect of an applied electric field on the separation and rise of bubble was simulated by Computational Fluid dynamics and results were compared with experimental data. The numerical results showed proper agreement (10%) with experimental reports. The working fluids in the...
Persistent link: https://www.econbiz.de/10012043532
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Mechanism of molasses-water mixing behavior in bioethanol fermenter: Experiments and CFD modeling
Madhania, Suci; Muharam, Yuswan; Winardi, Sugeng; … - In: Energy Reports 5 (2019), pp. 454-461
Molasses is a first-generation bioethanol feedstock that is a byproduct of sugar production. Molasses is a viscous fluid; consequently, when it serves as a substrate, it needs to be dissolved in water to obtain the appropriate conditions for the yeast. Therefore, the mixing process of molasses...
Persistent link: https://www.econbiz.de/10012651962
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Development of a semi-analytical model to select a suitable airfoil section for blades of horizontal axis hydrokinetic turbine
Gupta, Mahendra Kumar; Subbarao, P. M. V. - In: Energy Reports 6 (2020) 1, pp. 32-37
All modern hydro-kinetic turbines are being designed based on a lift, using airfoils, which should have a significant lift to drag ratio to achieve maximum efficiency.SG604X family airfoil has significant lift-to-drag ratio under an operating range of Re from 105-106, which also come under our...
Persistent link: https://www.econbiz.de/10012652068
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Investigation of thermo-physical fluid properties effect on binary fluid ejector performance
El Hassan, Mouhammad; Assoum, Hassan H.; Bukharin, Nikolay - In: Energy Reports 6 (2020) 2, pp. 287-292
Supersonic Ejector (SE) is a thermally-driven fluidic compressor that replaces the electro-mechanical compressor in Reverse-Rankine refrigeration/heat pump cycles. These widely used thermal cycles account for billions of kWh of electric energy and produce hundreds of millions of metric tons of...
Persistent link: https://www.econbiz.de/10012652253
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Combustion models for biomass: A review
Marangwanda, Garikai T.; Madyira, Daniel M.; Babarinde, … - In: Energy Reports 6 (2020) 2, pp. 664-672
The present work seeks to review the current biomass combustion models in use for industrial applications. Combustion efficiency of coal fired boilers is a major concern for engineers and policy makers especially with the effect emissions have on the climate. Biomass, a renewable fuel, offers an...
Persistent link: https://www.econbiz.de/10012652311