Assessing the hybridization of an existing geothermal plant by coupling a CSP system for increasing power generation
Author
dc.contributor.author
Tranamil Maripe, Yanara
Author
dc.contributor.author
Cardemil, José M.
Author
dc.contributor.author
Escobar, Rodrigo
Author
dc.contributor.author
Morata, Diego
Author
dc.contributor.author
Sarmiento Laurel, Cristóbal
Admission date
dc.date.accessioned
2022-07-13T19:24:25Z
Available date
dc.date.available
2022-07-13T19:24:25Z
Publication date
dc.date.issued
2022
Cita de ítem
dc.identifier.citation
Energies 2022, 15, 1961
es_ES
Identifier
dc.identifier.other
10.3390/en15061961
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/186697
Abstract
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Concentrated Solar Power (CSP) and geothermal energy systems are outlined as two of the most promising technologies for sustainable and reliable electricity generation. Several studies in the technical literature have pointed out that the hybridization of solar and geothermal energy sources could lead to a reduction of the levelized cost of energy (LCOE) of geothermal systems, as well as improving the capacity factor of CSP systems. However, the technical literature shows that the integration of solar thermal collectors does not present a positive impact in all scenarios analyzed. The present study aims to further analyze the competitiveness of the hybridization of solar and geothermal systems under high irradiation conditions such as those observed in the Andean region in northern Chile. The evaluation was carried out by coupling a thermodynamic model in Engineering Equation Solver (EES) with a solar thermal model in the System Advisor Model (SAM). The assessment considers the configuration of an existing geothermal plant, considering the design constraints associated with the actual operating conditions of the plant. The analysis is based on an energy and exergy assessment, allowing us to identify the efficiency of the subsystems introduced for the hybridization and assess the competitiveness of the hybrid schemes by an economic assessment in terms of the LCOE. The results show that the hybrid schemes allow a reduction of the LCOE of a geothermal stand-alone plant by about 10 USD/MWh, increasing the competitiveness of the geothermal system. However, a large variation on such a reduction is observed depending on the size of the solar field and the storage tank of the solar system.
es_ES
Patrocinador
dc.description.sponsorship
"Solar Energy Research Center"-SERC-Chile ANID/FONDAP/15110019
Centro de Excelencia en Geotermia de los Andes ANID/FONDAP/15200001
ANID/FONDECYT/1191705
ANID/FONDECYT/1201337
es_ES
Lenguage
dc.language.iso
en
es_ES
Publisher
dc.publisher
MDPI
es_ES
Type of license
dc.rights
Attribution-NonCommercial-NoDerivs 3.0 United States