COMSOL Models and Simulation Results for Closed-Loop Geothermal Systems with Thermal Enhancements
The Closed-Loop Geothermal Working Group and the National Renewable Energy Laboratory (NREL) have studied the performance of disc-shaped and linear thermal enhancements (conductive material introduced around a wellbore) in closed-loop geothermal systems. COMSOL models were developed to investigate the increase in heat production in systems with thermal enhancements compared to those without, across a range of scenarios. This dataset includes two example COMSOL models, a summary of the simulation results, and a link to an accompanying paper. Studied are idealized versions of two thermal enhancement designs: (1) existing or newly created fractures surrounding the wellbore, filled with highly conductive material, and (2) a 'fishbone structure,' where short wellbores are drilled radially outward from the main wellbore and filled with highly conductive material.
Resources
4 resources available
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COMSOL Thermal Enhancements Simulation Results.xlsx
XLSX -
Disc-shaped Thermal Enhancement Model.mph
MPH -
Linear Extent Thermal Enhancement Model.mph
MPH -
Paper - Thermal Enhancements for Closed-Loop Geothermal
PDF
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "019:20" ] |
| contactPoint |
{ "fn": "Koenraad Beckers", "@type": "vcard:Contact", "hasEmail": "mailto:koenraad.beckers@nlr.gov" } |
| dataQuality |
true
|
| description | The Closed-Loop Geothermal Working Group and the National Renewable Energy Laboratory (NREL) have studied the performance of disc-shaped and linear thermal enhancements (conductive material introduced around a wellbore) in closed-loop geothermal systems. COMSOL models were developed to investigate the increase in heat production in systems with thermal enhancements compared to those without, across a range of scenarios. This dataset includes two example COMSOL models, a summary of the simulation results, and a link to an accompanying paper. Studied are idealized versions of two thermal enhancement designs: (1) existing or newly created fractures surrounding the wellbore, filled with highly conductive material, and (2) a 'fishbone structure,' where short wellbores are drilled radially outward from the main wellbore and filled with highly conductive material. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "COMSOL Thermal Enhancements Simulation Results.xlsx", "format": "xlsx", "accessURL": "https://gdr.openei.org/files/1574/COMSOL%20Thermal%20Enhancements%20Simulation%20Results.xlsx", "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "description": "Spreadsheet listing COMSOL simulation results for each scenario (for both disc and linear thermal enhancements). Disc-shaped thermal enhancement results are presented in the second tab, linear extent thermal enhancement results in the third tab. In all models, the heat transfer fluid was water, injected at 2 kg/s and 50 degrees C. These simulations results are presented with graphs in the accompanying 2024 Stanford Geothermal Workshop paper. " }, { "@type": "dcat:Distribution", "title": "Disc-shaped Thermal Enhancement Model.mph", "format": "mph", "accessURL": "https://gdr.openei.org/files/1574/Disc_Thermal_Enhancement_SteadyState_2Dmodel.mph", "mediaType": "application/octet-stream", "description": "2D steady-state COMSOL model developed to simulate disc-shaped thermal enhancements for closed-loop geothermal. Model design information and visualizations can be found in the accompanying paper." }, { "@type": "dcat:Distribution", "title": "Linear Extent Thermal Enhancement Model.mph", "format": "mph", "accessURL": "https://gdr.openei.org/files/1574/Linear_Extent_Thermal_Enhancement_SteadyState_3Dmodel.mph", "mediaType": "application/octet-stream", "description": "3D steady-state COMSOL model developed to simulate linear thermal enhancements for closed-loop geothermal. Model design information and visualizations can be found in the accompanying paper." }, { "@type": "dcat:Distribution", "title": "Paper - Thermal Enhancements for Closed-Loop Geothermal", "format": "pdf", "accessURL": "https://pangea.stanford.edu/ERE/db/GeoConf/papers/SGW/2024/Beckers.pdf", "mediaType": "application/pdf", "description": "2024 Stanford Geothermal Workshop paper presenting the COSMOL simulation results and investigating their impact on studying the performance of thermal enhancements for closed-loop geothermal systems." } ] |
| DOI | 10.15121/2282853 |
| identifier | https://data.openei.org/submissions/7656 |
| issued | 2023-12-15T07:00:00Z |
| keyword |
[ "COSMOL", "assessment", "closed-loop", "energy", "geothermal", "model", "simulation", "simulation results", "steady-state", "thermal enhancements", "transient" ] |
| landingPage | https://gdr.openei.org/submissions/1574 |
| license | https://creativecommons.org/licenses/by/4.0/ |
| modified | 2024-01-26T16:15:28Z |
| programCode |
[ "019:006" ] |
| projectLead | Zachary Frone |
| projectNumber | FY24 AOP 5.4.1.15 |
| projectTitle | Closed-Loop Geothermal Working Group |
| publisher |
{ "name": "National Renewable Energy Laboratory", "@type": "org:Organization" } |
| spatial |
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|
| title | COMSOL Models and Simulation Results for Closed-Loop Geothermal Systems with Thermal Enhancements |
