{"id":{"repo_id":"reykjavik","oai_identifier":"oai:skemman.is:1946/28734"},"canonical_url":"https://search.dev.ndltd.org/etd/reykjavik/oai:skemman.is:1946/28734","repository":{"repo_id":"reykjavik","name":"Reykjavík University","base_url":"https://skemman.is/oai/request"},"display":{"title":"Feasibility of supercritical CO2 coaxial heat exchanger geothermal well conversion with ECO2G technology","abstract":"The feasibility of converting non-producing geothermal wells to closed loop supercritical CO2 coaxial heat exchanger using ECO2G technology was analyzed for two heat exchanger scenarios. The first scenario, Case A, utilizes the existing production casing as the heat exchanger and plugs the well at 1000 m depth to create the closed loop. The second scenario, Case B, inserts a new, closed, hang-down liner to the full 2500 m depth to use as the heat exchanger. A spreadsheet thermodynamic model discretized the depth of the well to model the heat flow, temperature and pressure of the sCO2, and electricity production of each heat exchanger. With the electricity production, the NPV and IRR of Case A and Case B were performed, along with a sensitivity analysis. From this study, the feasibility of the project was determined.","abstract_html":"The feasibility of converting non-producing geothermal wells to closed loop supercritical CO2 coaxial heat exchanger using ECO2G technology was analyzed for two heat exchanger scenarios. The first scenario, Case A, utilizes the existing production casing as the heat exchanger and plugs the well at 1000 m depth to create the closed loop. The second scenario, Case B, inserts a new, closed, hang-down liner to the full 2500 m depth to use as the heat exchanger. A spreadsheet thermodynamic model discretized the depth of the well to model the heat flow, temperature and pressure of the sCO2, and electricity production of each heat exchanger. With the electricity production, the NPV and IRR of Case A and Case B were performed, along with a sensitivity analysis. From this study, the feasibility of the project was determined.","abstract_has_math":false,"creators":["Lauren Elizabeth Hillis 1992-"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Háskólinn í Reykjavík"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2017,"date_issued":"2017-08-30T11:42:16Z","date_published":"2017-08-30T11:42:16Z","updated_at":"2026-07-27T20:42:37Z","subjects":["Orkuverkfræði","Jarðhiti","Varmaskiptar","Meistaraprófsritgerðir","Tækni- og verkfræðideild","Sustainable Energy Engineering","Heat exchangers","School of Science and Engineering"],"languages":["en"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/1946/28734","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Háskólinn í Reykjavík"]},{"key":"dc:creator","label":"Author","values":["Lauren Elizabeth Hillis 1992-"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2017-08-30T11:42:15Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2017-08-30T11:42:15Z"]},{"key":"dc:date.issued","label":"Date","values":["2017-08-30T11:42:16Z"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Orkuverkfræði","Jarðhiti","Varmaskiptar","Meistaraprófsritgerðir","Tækni- og verkfræðideild","Sustainable Energy Engineering","Heat exchangers","School of Science and Engineering"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/1946/28734"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The feasibility of converting non-producing geothermal wells to closed loop supercritical CO2 coaxial heat exchanger using ECO2G technology was analyzed for two heat exchanger scenarios. The first scenario, Case A, utilizes the existing production casing as the heat exchanger and plugs the well at 1000 m depth to create the closed loop. The second scenario, Case B, inserts a new, closed, hang-down liner to the full 2500 m depth to use as the heat exchanger. A spreadsheet thermodynamic model discretized the depth of the well to model the heat flow, temperature and pressure of the sCO2, and electricity production of each heat exchanger. With the electricity production, the NPV and IRR of Case A and Case B were performed, along with a sensitivity analysis. From this study, the feasibility of the project was determined."]},{"key":"dc:title","label":"Title","values":["Feasibility of supercritical CO2 coaxial heat exchanger geothermal well conversion with ECO2G technology","Hagnýting yfirkrítísks CO2 kóaxíal varmaskiptis við umbreytingu jarðhitabrunns með ECO2G tækni"]}]}],"canonical_facts":{"dc:contributor":["Háskólinn í Reykjavík"],"dc:creator":["Lauren Elizabeth Hillis 1992-"],"dc:date.accessioned":["2017-08-30T11:42:15Z"],"dc:date.available":["2017-08-30T11:42:15Z"],"dc:date.issued":["2017-08-30T11:42:16Z"],"dc:description.abstract":["The feasibility of converting non-producing geothermal wells to closed loop supercritical CO2 coaxial heat exchanger using ECO2G technology was analyzed for two heat exchanger scenarios. The first scenario, Case A, utilizes the existing production casing as the heat exchanger and plugs the well at 1000 m depth to create the closed loop. The second scenario, Case B, inserts a new, closed, hang-down liner to the full 2500 m depth to use as the heat exchanger. A spreadsheet thermodynamic model discretized the depth of the well to model the heat flow, temperature and pressure of the sCO2, and electricity production of each heat exchanger. With the electricity production, the NPV and IRR of Case A and Case B were performed, along with a sensitivity analysis. From this study, the feasibility of the project was determined."],"dc:identifier.uri":["http://hdl.handle.net/1946/28734"],"dc:language.iso":["en"],"dc:subject":["Orkuverkfræði","Jarðhiti","Varmaskiptar","Meistaraprófsritgerðir","Tækni- og verkfræðideild","Sustainable Energy Engineering","Heat exchangers","School of Science and Engineering"],"dc:title":["Feasibility of supercritical CO2 coaxial heat exchanger geothermal well conversion with ECO2G technology","Hagnýting yfirkrítísks CO2 kóaxíal varmaskiptis við umbreytingu jarðhitabrunns með ECO2G tækni"],"dc:type":["Thesis"]},"updated_at":"2026-07-27T20:42:37Z"}