{"@type": "dcat:Dataset", "DOI": "10.15121/2282853", "accessLevel": "public", "bureauCode": ["019:20"], "contactPoint": {"@type": "vcard:Contact", "fn": "Koenraad Beckers", "hasEmail": "mailto:koenraad.beckers@nrel.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", "accessURL": "https://pangea.stanford.edu/ERE/db/GeoConf/papers/SGW/2024/Beckers.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.", "format": "pdf", "mediaType": "application/pdf", "title": "Paper - Thermal Enhancements for Closed-Loop Geothermal"}, {"@type": "dcat:Distribution", "accessURL": "https://gdr.openei.org/files/1574/Disc_Thermal_Enhancement_SteadyState_2Dmodel.mph", "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.", "format": "mph", "mediaType": "application/octet-stream", "title": "Disc-shaped Thermal Enhancement Model.mph"}, {"@type": "dcat:Distribution", "accessURL": "https://gdr.openei.org/files/1574/Linear_Extent_Thermal_Enhancement_SteadyState_3Dmodel.mph", "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.", "format": "mph", "mediaType": "application/octet-stream", "title": "Linear Extent Thermal Enhancement Model.mph"}, {"@type": "dcat:Distribution", "accessURL": "https://gdr.openei.org/files/1574/COMSOL%20Thermal%20Enhancements%20Simulation%20Results.xlsx", "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.  ", "format": "xlsx", "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "title": "COMSOL Thermal Enhancements Simulation Results.xlsx"}], "identifier": "https://data.openei.org/submissions/7656", "issued": "2023-12-15T07:00:00Z", "keyword": ["geothermal", "energy", "thermal enhancements", "COSMOL", "simulation", "model", "closed-loop", "steady-state", "transient", "simulation results", "assessment"], "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": {"@type": "org:Organization", "name": "National Renewable Energy Laboratory"}, "spatial": "{\"type\":\"Polygon\",\"coordinates\":[[[-51.01909999999986,-83.39242928600585],[-49.250199999999985,-83.39242928600585],[-49.250199999999985,85.11087793332304],[-51.01909999999986,85.11087793332304],[-51.01909999999986,-83.39242928600585]]]}", "title": "COMSOL Models and Simulation Results for Closed-Loop Geothermal Systems with Thermal Enhancements "}