Hydrodynamics of an oscillating water column seawater pump

Czitrom, Steven; Godoy, Ramiro; Prado, Esteban; Pérez, P.; Peralta–Fabi, R.

doi:10.1016/s0029-8018(99)00040-2

Cited by 18 publications

(24 citation statements)

References 22 publications

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“…Dans la littérature, on trouve un certain nombre de travaux sur ce concept (EVANS & PORTER, 1995 ;BRENDMO et al, 1996 ;CZITROM et al, 2000 ;WANG et al, 2002). Dans ce travail, on se restreint à la modélisation du fonctionnement de la colonne d'eau oscillante.…”

Section: La Connaissance De La Mer : Un Vecteur Du Développement Duraunclassified

Modélisation numérique et expérimentale d’un système de récupération de l’énergie de la houle

Mordane¹,

Ajjemami²,

Dabssi³

et al. 2011

Edition 2, Tanger, Maroc

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Résumé :La colonne d'eau oscillante est un concept qui est à la base d'un dispositif de récupération de l'énergie de la houle. La détermination de l'amplification de la houle dans la colonne d'eau oscillante repose sur le calcul de ses coefficients hydrodynamiques. Dans ce travail, ces caractéristiques sont calculées en utilisant la méthode des éléments frontières (BEM). On présente les résultats de calcul relatifs à la masse de transfert avec une validation expérimentale des déplacements des masses d'eau dans la colonne d'eau.

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Section: La Connaissance De La Mer : Un Vecteur Du Développement Duraunclassified

Modélisation numérique et expérimentale d’un système de récupération de l’énergie de la houle

Mordane¹,

Ajjemami²,

Dabssi³

et al. 2011

Edition 2, Tanger, Maroc

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“…Coupling of the two equations occurs through the air compression term (fourth in both equations) and the wave forcing is included on the right hand side of the resonant duct equation (1). A dimensional analysis of the pump equations performed by Czitrom et al (2000a) for a full-scale oceanic application, shows that the non-linear terms in equations (1-2) are relatively small, and that their main contribution is to limit flow through the pump. They showed that the pump behaves basically like a two-mass two-spring linear system (figure 2), where the two masses correspond to the water in the two ducts and the springs represent gravity and the air compression chamber.…”

Section: System Equationsmentioning

confidence: 99%

“…Solving for V 0 provides the following simple analytical algorithm for tuning the system for resonance at the given wave frequency (Czitrom et al, 2000a):…”

Section: Tuning To Monochromatic Wavesmentioning

confidence: 99%

On the tuning of a wave-energy driven oscillating-water-column seawater pump to polychromatic waves

Godoy-Diana

Czitrom

2007

Ocean Engineering

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Performance of wave-energy devices of the oscillating water column (OWC) type is greatly enhanced when a resonant condition with the forcing waves is maintained. The natural frequency of such systems can in general be tuned to resonate with a given wave forcing frequency. In this paper we address the tuning of an OWC seawater pump to polychromatic waves. We report results of wave tank experiments, which were conducted with a scale model of the pump. Also, a numerical solution for the pump equations, which were proven in previous work to successfully describe its behavior when driven by monochromatic waves, is tested with various polychromatic wave spectra. Results of the numerical model forced by the wave trains measured in the wave tank experiments are used to develop a tuning criterion for the sea-water pump.

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“…The pump equations were derived by applying the Bernoulli equation to streamlines in the resonant and exhaust ducts and adding terms for the losses due to viscosity, vortex formation and radiation damping [Czitrom 1997;Czitrom et al 2000a]. A numerical model of the SIBEO, which solves the pump equations, reproduces 1:25 scale wave tank test data remarkably well [Czitrom et al 2000b].…”

Section: The Sibeo Wave-driven Seawater Pumpmentioning

confidence: 99%

Flushing of the port of Ensenada using a SIBEO wave-driven seawater pump

Czitrom

Coronado

Nunez

2007

JOMMS

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A SIBEO wave-driven seawater pump is proposed to inject clean and oxygen-rich seawater from outside the port of Ensenada, Baja California, to promote flushing in the more stagnant sections of the harbor. Results from a simple two-dimensional numerical model of the port hydrodynamics shed light on how the tides cannot on their own adequately flush the system. A three-dimensional model, which includes thermal stratification, illustrates how the pumped seawater ventilation can spread throughout the harbor via a density channel set up by the seasonal thermocline.

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Hydrodynamics of an oscillating water column seawater pump

Cited by 18 publications

References 22 publications

Modélisation numérique et expérimentale d’un système de récupération de l’énergie de la houle

Modélisation numérique et expérimentale d’un système de récupération de l’énergie de la houle

On the tuning of a wave-energy driven oscillating-water-column seawater pump to polychromatic waves

Flushing of the port of Ensenada using a SIBEO wave-driven seawater pump

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