Numerical evaluation of thermal and hydrodynamic effects caused by heat production well on geothermal Phlegraean Fields
This study describes the geothermal response of the Phlegraean Fields as well as the impact of changes in its thermal and hydrodynamic properties brought on by a deep borehole heat exchanger (DBHE). For this purpose, we have developed a specialized model based on the Galerkin Method (GM) and the ite...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2022-12-01
|
| Series: | Frontiers in Energy Research |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2022.1000990/full |
| _version_ | 1811185011952451584 |
|---|---|
| author | Gennaro Sepede Claudio Alimonti Salvador Ángel Gómez-Lopera Atousa Ataieyan |
| author_facet | Gennaro Sepede Claudio Alimonti Salvador Ángel Gómez-Lopera Atousa Ataieyan |
| author_sort | Gennaro Sepede |
| collection | DOAJ |
| description | This study describes the geothermal response of the Phlegraean Fields as well as the impact of changes in its thermal and hydrodynamic properties brought on by a deep borehole heat exchanger (DBHE). For this purpose, we have developed a specialized model based on the Galerkin Method (GM) and the iterative Newton–Raphson algorithm to perform a transient simulation of heat transfer with fluid flow in porous media by solving the related system of coupled non-linear differential equations. A two-dimensional domain characterized with an anisotropic saturated porous media and a non-uniform grid is simulated. Extreme characteristics, such as non-uniformity in the distribution of the thermal source, are implemented as well as the fluid flow boundary conditions. While simulating the undisturbed geothermal reservoir and reaching the steady temperature, stream function, and velocity components, a DBHE is placed into the domain to evaluate its impact on the thermal and fluid flow fields. This research aims to identify and investigate the variables involved in the Phlegraean Fields and provide a numerical approach to accurately simulate the thermodynamic and hydrodynamic effects induced in a reservoir by a DBHE. The results show a maximum temperature change of 107.3°C in 200 years of service in the study area and a 65-year time limit is set for sustainable geothermal energy production. |
| first_indexed | 2024-04-11T13:22:08Z |
| format | Article |
| id | doaj.art-264ef48c81514bf79c5350262fa6dffc |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-04-11T13:22:08Z |
| publishDate | 2022-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-264ef48c81514bf79c5350262fa6dffc2022-12-22T04:22:10ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2022-12-011010.3389/fenrg.2022.10009901000990Numerical evaluation of thermal and hydrodynamic effects caused by heat production well on geothermal Phlegraean FieldsGennaro Sepede0Claudio Alimonti1Salvador Ángel Gómez-Lopera2Atousa Ataieyan3Department of Applied Physics and Naval Technology, Universidad Politécnica de Cartagena (UPCT), Escuela Técnica Superior de Ingeniería Agronómica (ETSIA), Cartagena, SpainSapienza University of Rome, Dipartimento Ingegneria Chimica Materiali Ambiente (DICMA), Roma, ItalyDepartment of Applied Physics and Naval Technology, Universidad Politécnica de Cartagena (UPCT), Escuela Técnica Superior de Ingeniería Agronómica (ETSIA), Cartagena, SpainDepartment of Water Engineering and Management, Tarbiat Modares University, Tehran, IranThis study describes the geothermal response of the Phlegraean Fields as well as the impact of changes in its thermal and hydrodynamic properties brought on by a deep borehole heat exchanger (DBHE). For this purpose, we have developed a specialized model based on the Galerkin Method (GM) and the iterative Newton–Raphson algorithm to perform a transient simulation of heat transfer with fluid flow in porous media by solving the related system of coupled non-linear differential equations. A two-dimensional domain characterized with an anisotropic saturated porous media and a non-uniform grid is simulated. Extreme characteristics, such as non-uniformity in the distribution of the thermal source, are implemented as well as the fluid flow boundary conditions. While simulating the undisturbed geothermal reservoir and reaching the steady temperature, stream function, and velocity components, a DBHE is placed into the domain to evaluate its impact on the thermal and fluid flow fields. This research aims to identify and investigate the variables involved in the Phlegraean Fields and provide a numerical approach to accurately simulate the thermodynamic and hydrodynamic effects induced in a reservoir by a DBHE. The results show a maximum temperature change of 107.3°C in 200 years of service in the study area and a 65-year time limit is set for sustainable geothermal energy production.https://www.frontiersin.org/articles/10.3389/fenrg.2022.1000990/fullgeothermal fieldsPhlegraean areaGalerkin methodDBHEthermal and hydrodynamic effects |
| spellingShingle | Gennaro Sepede Claudio Alimonti Salvador Ángel Gómez-Lopera Atousa Ataieyan Numerical evaluation of thermal and hydrodynamic effects caused by heat production well on geothermal Phlegraean Fields Frontiers in Energy Research geothermal fields Phlegraean area Galerkin method DBHE thermal and hydrodynamic effects |
| title | Numerical evaluation of thermal and hydrodynamic effects caused by heat production well on geothermal Phlegraean Fields |
| title_full | Numerical evaluation of thermal and hydrodynamic effects caused by heat production well on geothermal Phlegraean Fields |
| title_fullStr | Numerical evaluation of thermal and hydrodynamic effects caused by heat production well on geothermal Phlegraean Fields |
| title_full_unstemmed | Numerical evaluation of thermal and hydrodynamic effects caused by heat production well on geothermal Phlegraean Fields |
| title_short | Numerical evaluation of thermal and hydrodynamic effects caused by heat production well on geothermal Phlegraean Fields |
| title_sort | numerical evaluation of thermal and hydrodynamic effects caused by heat production well on geothermal phlegraean fields |
| topic | geothermal fields Phlegraean area Galerkin method DBHE thermal and hydrodynamic effects |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2022.1000990/full |
| work_keys_str_mv | AT gennarosepede numericalevaluationofthermalandhydrodynamiceffectscausedbyheatproductionwellongeothermalphlegraeanfields AT claudioalimonti numericalevaluationofthermalandhydrodynamiceffectscausedbyheatproductionwellongeothermalphlegraeanfields AT salvadorangelgomezlopera numericalevaluationofthermalandhydrodynamiceffectscausedbyheatproductionwellongeothermalphlegraeanfields AT atousaataieyan numericalevaluationofthermalandhydrodynamiceffectscausedbyheatproductionwellongeothermalphlegraeanfields |