Feasibility study for a medium-enthalpy geothermal power plant in Rosario de la Frontera, Salta, Argentina

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"In this study the surrounding of Rosario de la Frontera was investigated for its suitability for geothermal energy production. The area is located in north-western Argentina, in the province of Salta, which is at the foothills of the Andean retro-wedge and in the northern part of the Sierra de...

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Autor principal: Brender, Niklas
Otros Autores: Conde Serra, Alejandro
Formato: Tesis de maestría
Lenguaje:Inglés
Publicado: 2019
Materias:
ENERGIA GEOTERMICA
GENERACION DE ENERGIA ELECTRICA
Acceso en línea:http://ri.itba.edu.ar/handle/123456789/1568
Aporte de:
Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA) de Instituto Tecnológico de Buenos Aires (ITBA)
id I32-R138-123456789-1568
record_format dspace
institution Instituto Tecnológico de Buenos Aires (ITBA)
institution_str I-32
repository_str R-138
collection Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA)
language Inglés
topic ENERGIA GEOTERMICA
GENERACION DE ENERGIA ELECTRICA
spellingShingle ENERGIA GEOTERMICA
GENERACION DE ENERGIA ELECTRICA
Brender, Niklas
Feasibility study for a medium-enthalpy geothermal power plant in Rosario de la Frontera, Salta, Argentina
topic_facet ENERGIA GEOTERMICA
GENERACION DE ENERGIA ELECTRICA
description "In this study the surrounding of Rosario de la Frontera was investigated for its suitability for geothermal energy production. The area is located in north-western Argentina, in the province of Salta, which is at the foothills of the Andean retro-wedge and in the northern part of the Sierra de la Candelaria anticline. In this region there are 13 hot springs with temperatures between 24.1ºC to 90.5ºC, which have been used for commercial purposes since 1880 and geological investigations were carried out early on, suggesting a large hydrothermal reservoir at a maximum depth of 3000 meters. In 2012 the presence of two aquifers at different depths was detected with the help of audiomagnetotelluric investigations and recent studies indicate these depths to 150 meters and 2400 meters respectively. Samples and calculations show temperatures between 100 C to 130 C and a permeability of 49 - 81.2mD for the deep aquifer. Based on these data, the focus was placed on the performance calculation of an Organic Rankine Cycle (ORC) power plant. Thereby, a power plant adapted to the boundary conditions in Rosario de la Frontera can deliver net outputs between 388.9kW to 893.9kW for well head temperatures ranging from 95 C to 125 C. In contrast, the achievable net outputs of two example turnkey systems are in the range of 137kW- 491kW. Further economic calculations determine the electricity generation costs at a value of 26.3 - 47.9US cents per kWh for a custom made solution and between 35.6 to 118.5UScents/kWh for the two turnkey systems. However, if the thermal water mass flow can be doubled, for example by hydraulic shearing, the levelized costs of energy for all systems and temperature ranges can be reduced by 30 - 40%. Nevertheless, these costs are still higher than those of other technologies, which illustrates the relevance of possible subsidy programs for this kind of geothermal energy."
author2 Conde Serra, Alejandro
author_facet Conde Serra, Alejandro
Brender, Niklas
format Tesis de maestría
author Brender, Niklas
author_sort Brender, Niklas
title Feasibility study for a medium-enthalpy geothermal power plant in Rosario de la Frontera, Salta, Argentina
title_short Feasibility study for a medium-enthalpy geothermal power plant in Rosario de la Frontera, Salta, Argentina
title_full Feasibility study for a medium-enthalpy geothermal power plant in Rosario de la Frontera, Salta, Argentina
title_fullStr Feasibility study for a medium-enthalpy geothermal power plant in Rosario de la Frontera, Salta, Argentina
title_full_unstemmed Feasibility study for a medium-enthalpy geothermal power plant in Rosario de la Frontera, Salta, Argentina
title_sort feasibility study for a medium-enthalpy geothermal power plant in rosario de la frontera, salta, argentina
publishDate 2019
url http://ri.itba.edu.ar/handle/123456789/1568
work_keys_str_mv AT brenderniklas feasibilitystudyforamediumenthalpygeothermalpowerplantinrosariodelafronterasaltaargentina
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spelling I32-R138-123456789-15682022-12-07T15:20:51Z Feasibility study for a medium-enthalpy geothermal power plant in Rosario de la Frontera, Salta, Argentina Brender, Niklas Conde Serra, Alejandro Kuhn, Dietmar ENERGIA GEOTERMICA GENERACION DE ENERGIA ELECTRICA "In this study the surrounding of Rosario de la Frontera was investigated for its suitability for geothermal energy production. The area is located in north-western Argentina, in the province of Salta, which is at the foothills of the Andean retro-wedge and in the northern part of the Sierra de la Candelaria anticline. In this region there are 13 hot springs with temperatures between 24.1ºC to 90.5ºC, which have been used for commercial purposes since 1880 and geological investigations were carried out early on, suggesting a large hydrothermal reservoir at a maximum depth of 3000 meters. In 2012 the presence of two aquifers at different depths was detected with the help of audiomagnetotelluric investigations and recent studies indicate these depths to 150 meters and 2400 meters respectively. Samples and calculations show temperatures between 100 C to 130 C and a permeability of 49 - 81.2mD for the deep aquifer. Based on these data, the focus was placed on the performance calculation of an Organic Rankine Cycle (ORC) power plant. Thereby, a power plant adapted to the boundary conditions in Rosario de la Frontera can deliver net outputs between 388.9kW to 893.9kW for well head temperatures ranging from 95 C to 125 C. In contrast, the achievable net outputs of two example turnkey systems are in the range of 137kW- 491kW. Further economic calculations determine the electricity generation costs at a value of 26.3 - 47.9US cents per kWh for a custom made solution and between 35.6 to 118.5UScents/kWh for the two turnkey systems. However, if the thermal water mass flow can be doubled, for example by hydraulic shearing, the levelized costs of energy for all systems and temperature ranges can be reduced by 30 - 40%. Nevertheless, these costs are still higher than those of other technologies, which illustrates the relevance of possible subsidy programs for this kind of geothermal energy." "En este estudio se examinó la aptitud de los alrededores de Rosario de la Frontera para la producción de energía geotérmica. La zona está ubicada en el noroeste de Argentina, en la provincia de Salta, al pie de la cordillera de los Andes, la misma yace al norte del anticlinal de la Sierra de la Candelaria. En esta región se encuentran 13 fuentes de aguas termales con temperaturas entre 24.1 C a 90.5 C, han sido utilizadas desde 1880 con fines comerciales. Con el paso del tiempo se han ido realizando varias investigaciones geológicas, lo que sugiere la existencia de un gran reservorio hidrotérmico a una máxima profundidad de 3000 metros. En el año 2012 se pudo detectar la presencia de dos acuíferos a diferentes profundidades, uno a 150 metros y el otro a 2400 metros, con la ayuda de investigaciones audiomagnetotelúricas. Las muestras y los cálculos indican temperaturas entre 100ºC y 130ºC con una permeabilidad de 49 - 81.2mD para el acuífero profundo. En base de estos datos, se hizo énfasis en el cálculo del rendimiento de una central eléctrica de Ciclo Orgánico Rankine (ORC). Es por esto que una central eléctrica adaptada a las condiciones en Rosario de la Frontera con temperaturas de agua termal dentro de un rango entre 95ºC y 125ºC genera potencias netas entre 388,9kW y 893,9kW. En cambio en los sistemas de llave en mano las potencias netas generadas rondan entre 137kW y 491kW. De los cálculos económicos realizados se determinan los costos de generación de electricidad en un valor de 26,3 a 47,9UScentavos por kWh en el caso de una central eléctrica adaptada, si se lo compara con los sistemas de llave en mano que el valor ronda entre 35,6 a 118,5UScentavos/kWh. Resulta oportuno destacar, que los costos nivelados de energía pueden ser reducidos en un 30 - 40% sin importar los sistemas y rangos de temperatura si el flujo del agua termal puede ser duplicado, por ejemplo a través de estimulación hidráulica. Empero, estos costos son aún más altos que los de otras tecnologías, lo que ilustra la importancia de los programas de subsidios para este tipo de energía geotérmica." Tesis Energía y Ambiente (maestría) - Instituto Tecnológico de Buenos Aires, Buenos Aires - Karlsruher Institut für Technologie, Karlsruhe, 2018 2019-05-03T14:42:03Z 2019-05-03T14:42:03Z 2018-08-24 Tesis de maestría http://ri.itba.edu.ar/handle/123456789/1568 en application/pdf Salta (Argentina : Provincia)

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