Assessing the Hybridization of an Existing Geothermal Plant by Coupling a CSP System for Increasing Power Generation
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 le...
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| Format: | Article |
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MDPI AG
2022-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/6/1961 |
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| author | Yanara Tranamil-Maripe José M. Cardemil Rodrigo Escobar Diego Morata Cristóbal Sarmiento-Laurel |
| author_facet | Yanara Tranamil-Maripe José M. Cardemil Rodrigo Escobar Diego Morata Cristóbal Sarmiento-Laurel |
| author_sort | Yanara Tranamil-Maripe |
| collection | DOAJ |
| description | 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 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>USD</mi></semantics></math></inline-formula>/<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>MWh</mi></semantics></math></inline-formula>, 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. |
| first_indexed | 2024-03-09T19:53:53Z |
| format | Article |
| id | doaj.art-2fcd93ab03c04b9b9cf6a3d28b8a23d9 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T19:53:53Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-2fcd93ab03c04b9b9cf6a3d28b8a23d92023-11-24T01:02:24ZengMDPI AGEnergies1996-10732022-03-01156196110.3390/en15061961Assessing the Hybridization of an Existing Geothermal Plant by Coupling a CSP System for Increasing Power GenerationYanara Tranamil-Maripe0José M. Cardemil1Rodrigo Escobar2Diego Morata3Cristóbal Sarmiento-Laurel4Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago 8370456, ChileDepartamento de Ingeniería Mecánica y Metalúrgica, Pontificia Universidad Católica de Chile, Santiago 7820436, ChileDepartamento de Ingeniería Mecánica y Metalúrgica, Pontificia Universidad Católica de Chile, Santiago 7820436, ChileDepartamento de Geología, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago 8370456, ChileSchool of Industrial Engineering, Universidad Diego Portales, Santiago 8370191, ChileConcentrated 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 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>USD</mi></semantics></math></inline-formula>/<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>MWh</mi></semantics></math></inline-formula>, 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.https://www.mdpi.com/1996-1073/15/6/1961geothermal plantbinary cycleConcentrating Solar Energythermodynamic analysisLCOE |
| spellingShingle | Yanara Tranamil-Maripe José M. Cardemil Rodrigo Escobar Diego Morata Cristóbal Sarmiento-Laurel Assessing the Hybridization of an Existing Geothermal Plant by Coupling a CSP System for Increasing Power Generation Energies geothermal plant binary cycle Concentrating Solar Energy thermodynamic analysis LCOE |
| title | Assessing the Hybridization of an Existing Geothermal Plant by Coupling a CSP System for Increasing Power Generation |
| title_full | Assessing the Hybridization of an Existing Geothermal Plant by Coupling a CSP System for Increasing Power Generation |
| title_fullStr | Assessing the Hybridization of an Existing Geothermal Plant by Coupling a CSP System for Increasing Power Generation |
| title_full_unstemmed | Assessing the Hybridization of an Existing Geothermal Plant by Coupling a CSP System for Increasing Power Generation |
| title_short | Assessing the Hybridization of an Existing Geothermal Plant by Coupling a CSP System for Increasing Power Generation |
| title_sort | assessing the hybridization of an existing geothermal plant by coupling a csp system for increasing power generation |
| topic | geothermal plant binary cycle Concentrating Solar Energy thermodynamic analysis LCOE |
| url | https://www.mdpi.com/1996-1073/15/6/1961 |
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