Enhancing the efficiency of solar pond heat extraction by using both lateral and bottom heat exchangers
10.1016/j.solener.2016.04.025
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/90160
Tipus de documentArticle
Data publicació2016-09
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
ProjecteINTEGRACION DE PROCESOS DE MEMBRANAS, INTERCAMBIO IONICO Y PRECIPITACION QUIMICA EN LA VALORIZACION DE CONCENTRADOS DE TRATAMIENTOS DE DESALACION DE AGUA (MICINN-CTQ2011-26799)
VALORIZACION DE SUB-PRODUCTOS DE EFLUENTES INDUSTRIALES: INTEGRACION DE TECNOLOGIAS DE MEMBRANAS EN LAS ETAPAS DE SEPARACION, CONCENTRACION Y PURIFICACION (MINECO-CTM2014-57302-R)
VALORIZACION DE SUB-PRODUCTOS DE EFLUENTES INDUSTRIALES: INTEGRACION DE TECNOLOGIAS DE MEMBRANAS EN LAS ETAPAS DE SEPARACION, CONCENTRACION Y PURIFICACION (MINECO-CTM2014-57302-R)
Abstract
In this study, heat extraction from both the gradient and heat storage zones of a salinity-gradient solar pond (SGSP) has been evaluated. For this purpose, an experimental solar pond pilot plant was constructed in 2009 in Barcelona (Spain). The structure of the pond is a cylindrical tank of 3-m height and 8 m diameter with a total area of 50 m(2). The main objective was to evaluate a heat-extraction system from the SGSP designed to enhance the system efficiency under different conditions. Thus, an in-pond heat exchanger covering all of the lateral wall area of the pond was installed, and its performance was compared with the traditional in-pond heat exchanger situated on the bottom of the pond. Heat extraction experiments were performed using both heat exchangers individually or both at the same time. The study covers the experiments performed at three different seasonal temperature conditions: winter (December), summer (July) and autumn (October and November). The variations of the temperature inside the pond during the heat extraction were measured and analyzed. The results demonstrated that the efficiency of the pond increases when the heat is removed from the lateral heat exchanger alone compared to either using the bottom heat exchanger or using both heat exchangers simultaneously
CitacióAlcaraz , A., Valderrama, C., Cortina, J., Akbarzadeh, A., Farran, A. Enhancing the efficiency of solar pond heat extraction by using both lateral and bottom heat exchangers. "Solar energy", Setembre 2016, vol. 134, p. 82-94.
ISSN0038-092X
Versió de l'editorhttp://www.sciencedirect.com/science/article/pii/S0038092X16300585
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