{"id":{"repo_id":"reykjavik","oai_identifier":"oai:skemman.is:1946/36416"},"canonical_url":"https://search.dev.ndltd.org/etd/reykjavik/oai:skemman.is:1946/36416","repository":{"repo_id":"reykjavik","name":"Reykjavík University","base_url":"https://skemman.is/oai/request"},"display":{"title":"Thermoeconomic analysis and optimization of geothermal power cycle utilizing aqueous potassium carbonate for scrubbing superheated steam","abstract":"In this thesis a thermoeconomic analysis was performed for a proposed geothermal power plant cycle utilizing aqueous potassium carbonate as a means of scrubbing the geothermal steam. This method of scrubbing is capable of preventing the loss of superheat while removing impurities from the steam. The main impurities of interest in this case are silica and chloride, which would have been among of the main issues for plans of the construction of a power plant in the Krafla geothermal area as part of the IDDP-1 well. By conducting a thermoeconomic analysis for the entire plant design, this project allows for a connection from the input design variables to the costs, power output, and sizing of all components necessary for the operation of the plant. The information used in this analysis focuses on the values of exergy throughout the processes. Additionally, the setup was run through two optimization algorithms (genetic and gradient based) in order to uncover the best possible operating conditions that minimize the cost per kilowatt-hour produced. As a result, this work provides a method for optimizing a system based on input design variables and individual equipment cost metrics.","abstract_html":"In this thesis a thermoeconomic analysis was performed for a proposed geothermal power plant cycle utilizing aqueous potassium carbonate as a means of scrubbing the geothermal steam. This method of scrubbing is capable of preventing the loss of superheat while removing impurities from the steam. The main impurities of interest in this case are silica and chloride, which would have been among of the main issues for plans of the construction of a power plant in the Krafla geothermal area as part of the IDDP-1 well. By conducting a thermoeconomic analysis for the entire plant design, this project allows for a connection from the input design variables to the costs, power output, and sizing of all components necessary for the operation of the plant. The information used in this analysis focuses on the values of exergy throughout the processes. Additionally, the setup was run through two optimization algorithms (genetic and gradient based) in order to uncover the best possible operating conditions that minimize the cost per kilowatt-hour produced. As a result, this work provides a method for optimizing a system based on input design variables and individual equipment cost metrics.","abstract_has_math":false,"creators":["Brandon Velasquez 1996-"],"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":2020,"date_issued":"2020-06-23T09:21:10Z","date_published":"2020-06-23T09:21:10Z","updated_at":"2026-07-27T20:42:04Z","subjects":["Orkuverkfræði","Sustainable energy engineering","Meistaraprófsritgerðir","Jarðhitavirkjanir","Varmafræði","Bestun","Tækni- og verkfræðideild","Geothermal power plants","Thermodynamics","Optimization","School of Science and Engineering"],"languages":["en"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/1946/36416","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":["Brandon Velasquez 1996-"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2020-06-23T09:21:09Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2020-06-23T09:21:09Z"]},{"key":"dc:date.issued","label":"Date","values":["2020-06-23T09:21:10Z"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Orkuverkfræði","Sustainable energy engineering","Meistaraprófsritgerðir","Jarðhitavirkjanir","Varmafræði","Bestun","Tækni- og verkfræðideild","Geothermal power plants","Thermodynamics","Optimization","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/1946/36416"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["In this thesis a thermoeconomic analysis was performed for a proposed geothermal power plant cycle utilizing aqueous potassium carbonate as a means of scrubbing the geothermal steam. This method of scrubbing is capable of preventing the loss of superheat while removing impurities from the steam. The main impurities of interest in this case are silica and chloride, which would have been among of the main issues for plans of the construction of a power plant in the Krafla geothermal area as part of the IDDP-1 well. By conducting a thermoeconomic analysis for the entire plant design, this project allows for a connection from the input design variables to the costs, power output, and sizing of all components necessary for the operation of the plant. The information used in this analysis focuses on the values of exergy throughout the processes. Additionally, the setup was run through two optimization algorithms (genetic and gradient based) in order to uncover the best possible operating conditions that minimize the cost per kilowatt-hour produced. As a result, this work provides a method for optimizing a system based on input design variables and individual equipment cost metrics.","Í þessu verkefni var varmahagfræðigreining framkvæmd á orkuferli jarðvarmavirkjunar sem nýtir kalíumkarbónatlausn til að hreinsa jarðhitagufuna. Þessi aðferð við hreinsun gufunnar getur komið í veg fyrir töp á yfirhitun gufunnar. Helstu óhreinindin í gufunni eru kísíll og klóríð sem gætu orðið krefjandi vandamál við nýtingu IDDP-1 holunnar á jarðhitasvæðinu í Kröflu. Með því að framkvæma varmahagfræðigreiningu á heildarhönnun orkuvers fyrir holuna er hægt að tengja saman hönnunarforsendur þess við kostnað, afköst og stærðir á helstu hlutum orkuversins. Þessar upplýsingar eru notaðar til að áætla virði íðorku (exergíu) í gegnum ferli orkuversins. Þess að auki var tvenns konar bestunaralgrím (genetic og gradient based) útbúið til að reikna út hagstæðustu rekstrarforsendur orkuvresins með það að lágmarka kostnað við orkuframleiðslu. Niðurstöður þessa verkefnis er aðferð við að ákvarða bestu skilyrði orkuferlis miðað við hönnunarforsendur og kostnað þess."]},{"key":"dc:title","label":"Title","values":["Thermoeconomic analysis and optimization of geothermal power cycle utilizing aqueous potassium carbonate for scrubbing superheated steam","Varmahagfræðigreining og bestun á nýtingu yfirhitaðrar gufu sem er hreinsuð með kalíumkarbónatlausn í orkuferli jarðvarmavirkjunar"]}]}],"canonical_facts":{"dc:contributor":["Háskólinn í Reykjavík"],"dc:creator":["Brandon Velasquez 1996-"],"dc:date.accessioned":["2020-06-23T09:21:09Z"],"dc:date.available":["2020-06-23T09:21:09Z"],"dc:date.issued":["2020-06-23T09:21:10Z"],"dc:description.abstract":["In this thesis a thermoeconomic analysis was performed for a proposed geothermal power plant cycle utilizing aqueous potassium carbonate as a means of scrubbing the geothermal steam. This method of scrubbing is capable of preventing the loss of superheat while removing impurities from the steam. The main impurities of interest in this case are silica and chloride, which would have been among of the main issues for plans of the construction of a power plant in the Krafla geothermal area as part of the IDDP-1 well. By conducting a thermoeconomic analysis for the entire plant design, this project allows for a connection from the input design variables to the costs, power output, and sizing of all components necessary for the operation of the plant. The information used in this analysis focuses on the values of exergy throughout the processes. Additionally, the setup was run through two optimization algorithms (genetic and gradient based) in order to uncover the best possible operating conditions that minimize the cost per kilowatt-hour produced. As a result, this work provides a method for optimizing a system based on input design variables and individual equipment cost metrics.","Í þessu verkefni var varmahagfræðigreining framkvæmd á orkuferli jarðvarmavirkjunar sem nýtir kalíumkarbónatlausn til að hreinsa jarðhitagufuna. Þessi aðferð við hreinsun gufunnar getur komið í veg fyrir töp á yfirhitun gufunnar. Helstu óhreinindin í gufunni eru kísíll og klóríð sem gætu orðið krefjandi vandamál við nýtingu IDDP-1 holunnar á jarðhitasvæðinu í Kröflu. Með því að framkvæma varmahagfræðigreiningu á heildarhönnun orkuvers fyrir holuna er hægt að tengja saman hönnunarforsendur þess við kostnað, afköst og stærðir á helstu hlutum orkuversins. Þessar upplýsingar eru notaðar til að áætla virði íðorku (exergíu) í gegnum ferli orkuversins. Þess að auki var tvenns konar bestunaralgrím (genetic og gradient based) útbúið til að reikna út hagstæðustu rekstrarforsendur orkuvresins með það að lágmarka kostnað við orkuframleiðslu. Niðurstöður þessa verkefnis er aðferð við að ákvarða bestu skilyrði orkuferlis miðað við hönnunarforsendur og kostnað þess."],"dc:identifier.uri":["http://hdl.handle.net/1946/36416"],"dc:language.iso":["en"],"dc:subject":["Orkuverkfræði","Sustainable energy engineering","Meistaraprófsritgerðir","Jarðhitavirkjanir","Varmafræði","Bestun","Tækni- og verkfræðideild","Geothermal power plants","Thermodynamics","Optimization","School of Science and Engineering"],"dc:title":["Thermoeconomic analysis and optimization of geothermal power cycle utilizing aqueous potassium carbonate for scrubbing superheated steam","Varmahagfræðigreining og bestun á nýtingu yfirhitaðrar gufu sem er hreinsuð með kalíumkarbónatlausn í orkuferli jarðvarmavirkjunar"],"dc:type":["Thesis"]},"updated_at":"2026-07-27T20:42:04Z"}