2016
DOI: 10.1016/j.renene.2016.01.044
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Analysis and simulation of a blue energy cycle

Abstract: The mixing process of fresh water and seawater releases a significant amount of energy and is a potential source of renewable energy. The so called 'blue energy' or salinitygradient energy can be harvested by a device consisting of carbon electrodes immersed in an electrolyte solution, based on the principle of capacitive double layer expansion (CDLE). In this study, we have investigated the feasibility of energy production based on the CDLE principle. Experiments and computer simulations were used to study th… Show more

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Cited by 17 publications
(13 citation statements)
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“…While in situ x-ray and neutron experiments now provide information at various scales on the localization of ions inside the electrodes [20,21], quantitative predictions of the ionic concentrations, or equivalently the capacitance and salt adsorption, essentially rely on models of the electric double layer (EDL). The most commonly used models in these contexts are Debye-Hückel (DH) and Poisson-Boltzmann (PB)-possibly including excluded volume effects-theories [22][23][24][25][26][27][28][29], as well as modified Donnan (mD) models [30].…”
Section: Introductionmentioning
confidence: 99%
“…While in situ x-ray and neutron experiments now provide information at various scales on the localization of ions inside the electrodes [20,21], quantitative predictions of the ionic concentrations, or equivalently the capacitance and salt adsorption, essentially rely on models of the electric double layer (EDL). The most commonly used models in these contexts are Debye-Hückel (DH) and Poisson-Boltzmann (PB)-possibly including excluded volume effects-theories [22][23][24][25][26][27][28][29], as well as modified Donnan (mD) models [30].…”
Section: Introductionmentioning
confidence: 99%
“…En el presente artículo se aborda el tema de generación de energía eléctrica, a través del proceso de Ósmosis por Presión Retardada o por sus siglas en inglés conocido como PRO, el cual aprovecha para este fin, los gradientes de salinidad que se presentan entre los océanos o los mares, y las fuentes corrientes de agua dulce (ríos), en las zonas conocidas como estuarios [6,7], por ejemplo, la mezcla de una solución salina de concentración alta con agua fresca, produce una solución salobre, la cual disipa más de 2,2 MJ energía libre por m3 de agua dulce tratada o lo que es equivalente a la energía potencial liberada por la caída del mismo volumen de agua corriente a una altura de 220 m [7]. Este tipo de generación, es considerada como renovable, no tiene emisiones de CO2 asociadas al proceso de generación u otra emisión que pueda contribuir de forma negativa con el cambio climático [2], el proceso entero posee una huella de carbono mínima (Kg CO2 equiv./KWh generado) [8,9] y es una gran alternativa para aprovechar la ventaja competitiva natural que posee Colombia, ya que el país cuenta con dos océanos, gran cantidad de ríos que desembocan en estos, sobretodo en la región pacífica, y permitiría diversificar la matriz energética nacional con una fuente de energía renovable.…”
Section: Figura 1 Potencia Teórica De Los Principales Ríos Del Mundounclassified
“…Design requirements for restrained chemical engines was provided by Miller et al [13] using a fuel cell with a motor attachment as an example. Further information on current technologies for power generation using salinity gradients may be taken from Jia et al [14] and Sharma et al [15]. Recently, analogous to the Carnot heat engine, a reversible mass engine cycle was proposed by Sharqawy [16].…”
Section: Introductionmentioning
confidence: 99%