Geothermal potential assessment of the Nevado del Ruiz volcano based on rock thermal conductivity measurements and numerical modeling of heat transfer

Maria Isabel Vélez, Daniela Blessent, Sebastián Córdoba, Jacqueline López-Sánchez, Jasmin Raymond

Resultado de la investigación: Contribución a una revistaArtículo

5 Citas (Scopus)

Resumen

© 2017 Elsevier Ltd This work presents an estimation of the geothermal potential of the Nevado del Ruiz (NDR) volcano, bridging the knowledge gap to develop geothermal energy in Colombia and improve resource estimates in South America. Field work, laboratory measurements, geological interpretations, 2D numerical modeling, and uncertainty analysis were conducted to the northwest of the NDR to assess temperature at depth and define thermal energy content. About 60 rock samples were collected at outcrops to measure thermal conductivity with a needle probe. A 2D numerical model, built from an inferred geological cross-section, was developed with the software OpenGeoSys to simulate the underground temperature distribution and then estimate the geothermal potential of a 1 km2area with sufficient temperature, assuming a recovery factor equal to 2.4% and a 30 years exploitation time. Coupled groundwater flow and heat transfer were simulated in steady-state considering two different thermal conductivity scenarios. Results show that the average estimated potential is 1.5 × 10−2MWtm−1of the reservoir thickness, considering temperatures greater than 150 °C located at a depth of approximately 2 km, in a selected area situated outside of the Los Nevados National Natural Park (NNP), to avoid any direct intervention on this protected area. According to a Monte Carlo analysis considering pessimist and optimist scenarios of thermal conductivity, the estimated geothermal power was 1.54 × 10−2MW m−1(σ = 2.91 × 10−3MW m−1) and 1.88 × 10−2MW/m (σ = 2.91 × 10−3MW m−1) for the two modeling scenario considered.
Idioma originalInglés estadounidense
Páginas (desde-hasta)153-164
Número de páginas12
PublicaciónJournal of South American Earth Sciences
DOI
EstadoPublicada - 1 ene 2018

Huella dactilar

thermal conductivity
heat transfer
volcano
rock
modeling
temperature
Monte Carlo analysis
geothermal power
geothermal energy
uncertainty analysis
fieldwork
groundwater flow
protected area
outcrop
cross section
probe
software
resource
energy

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title = "Geothermal potential assessment of the Nevado del Ruiz volcano based on rock thermal conductivity measurements and numerical modeling of heat transfer",
abstract = "{\circledC} 2017 Elsevier Ltd This work presents an estimation of the geothermal potential of the Nevado del Ruiz (NDR) volcano, bridging the knowledge gap to develop geothermal energy in Colombia and improve resource estimates in South America. Field work, laboratory measurements, geological interpretations, 2D numerical modeling, and uncertainty analysis were conducted to the northwest of the NDR to assess temperature at depth and define thermal energy content. About 60 rock samples were collected at outcrops to measure thermal conductivity with a needle probe. A 2D numerical model, built from an inferred geological cross-section, was developed with the software OpenGeoSys to simulate the underground temperature distribution and then estimate the geothermal potential of a 1 km2area with sufficient temperature, assuming a recovery factor equal to 2.4{\%} and a 30 years exploitation time. Coupled groundwater flow and heat transfer were simulated in steady-state considering two different thermal conductivity scenarios. Results show that the average estimated potential is 1.5 × 10−2MWtm−1of the reservoir thickness, considering temperatures greater than 150 °C located at a depth of approximately 2 km, in a selected area situated outside of the Los Nevados National Natural Park (NNP), to avoid any direct intervention on this protected area. According to a Monte Carlo analysis considering pessimist and optimist scenarios of thermal conductivity, the estimated geothermal power was 1.54 × 10−2MW m−1(σ = 2.91 × 10−3MW m−1) and 1.88 × 10−2MW/m (σ = 2.91 × 10−3MW m−1) for the two modeling scenario considered.",
author = "V{\'e}lez, {Maria Isabel} and Daniela Blessent and Sebasti{\'a}n C{\'o}rdoba and Jacqueline L{\'o}pez-S{\'a}nchez and Jasmin Raymond",
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Geothermal potential assessment of the Nevado del Ruiz volcano based on rock thermal conductivity measurements and numerical modeling of heat transfer. / Vélez, Maria Isabel; Blessent, Daniela; Córdoba, Sebastián; López-Sánchez, Jacqueline; Raymond, Jasmin.

En: Journal of South American Earth Sciences, 01.01.2018, p. 153-164.

Resultado de la investigación: Contribución a una revistaArtículo

TY - JOUR

T1 - Geothermal potential assessment of the Nevado del Ruiz volcano based on rock thermal conductivity measurements and numerical modeling of heat transfer

AU - Vélez, Maria Isabel

AU - Blessent, Daniela

AU - Córdoba, Sebastián

AU - López-Sánchez, Jacqueline

AU - Raymond, Jasmin

PY - 2018/1/1

Y1 - 2018/1/1

N2 - © 2017 Elsevier Ltd This work presents an estimation of the geothermal potential of the Nevado del Ruiz (NDR) volcano, bridging the knowledge gap to develop geothermal energy in Colombia and improve resource estimates in South America. Field work, laboratory measurements, geological interpretations, 2D numerical modeling, and uncertainty analysis were conducted to the northwest of the NDR to assess temperature at depth and define thermal energy content. About 60 rock samples were collected at outcrops to measure thermal conductivity with a needle probe. A 2D numerical model, built from an inferred geological cross-section, was developed with the software OpenGeoSys to simulate the underground temperature distribution and then estimate the geothermal potential of a 1 km2area with sufficient temperature, assuming a recovery factor equal to 2.4% and a 30 years exploitation time. Coupled groundwater flow and heat transfer were simulated in steady-state considering two different thermal conductivity scenarios. Results show that the average estimated potential is 1.5 × 10−2MWtm−1of the reservoir thickness, considering temperatures greater than 150 °C located at a depth of approximately 2 km, in a selected area situated outside of the Los Nevados National Natural Park (NNP), to avoid any direct intervention on this protected area. According to a Monte Carlo analysis considering pessimist and optimist scenarios of thermal conductivity, the estimated geothermal power was 1.54 × 10−2MW m−1(σ = 2.91 × 10−3MW m−1) and 1.88 × 10−2MW/m (σ = 2.91 × 10−3MW m−1) for the two modeling scenario considered.

AB - © 2017 Elsevier Ltd This work presents an estimation of the geothermal potential of the Nevado del Ruiz (NDR) volcano, bridging the knowledge gap to develop geothermal energy in Colombia and improve resource estimates in South America. Field work, laboratory measurements, geological interpretations, 2D numerical modeling, and uncertainty analysis were conducted to the northwest of the NDR to assess temperature at depth and define thermal energy content. About 60 rock samples were collected at outcrops to measure thermal conductivity with a needle probe. A 2D numerical model, built from an inferred geological cross-section, was developed with the software OpenGeoSys to simulate the underground temperature distribution and then estimate the geothermal potential of a 1 km2area with sufficient temperature, assuming a recovery factor equal to 2.4% and a 30 years exploitation time. Coupled groundwater flow and heat transfer were simulated in steady-state considering two different thermal conductivity scenarios. Results show that the average estimated potential is 1.5 × 10−2MWtm−1of the reservoir thickness, considering temperatures greater than 150 °C located at a depth of approximately 2 km, in a selected area situated outside of the Los Nevados National Natural Park (NNP), to avoid any direct intervention on this protected area. According to a Monte Carlo analysis considering pessimist and optimist scenarios of thermal conductivity, the estimated geothermal power was 1.54 × 10−2MW m−1(σ = 2.91 × 10−3MW m−1) and 1.88 × 10−2MW/m (σ = 2.91 × 10−3MW m−1) for the two modeling scenario considered.

U2 - 10.1016/j.jsames.2017.11.011

DO - 10.1016/j.jsames.2017.11.011

M3 - Article

SP - 153

EP - 164

JO - Journal of South American Earth Sciences

JF - Journal of South American Earth Sciences

SN - 0895-9811

ER -