<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-09-27T04:36:33Z</responseDate><request verb="GetRecord" identifier="oai:skemman.is:1946/36416" metadataPrefix="dim">https://skemman.is/oai/request</request><GetRecord><record><header><identifier>oai:skemman.is:1946/36416</identifier><datestamp>2021-04-19T13:07:15Z</datestamp><setSpec>com_1946_6870</setSpec><setSpec>com_1946_6001</setSpec><setSpec>col_1946_34328</setSpec></header><metadata><dim:dim xmlns:dim="http://www.dspace.org/xmlns/dspace/dim" xmlns:doc="http://www.lyncode.com/xoai" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.dspace.org/xmlns/dspace/dim http://www.dspace.org/schema/dim.xsd">
<dim:field mdschema="dc" element="contributor" lang="is">Háskólinn í Reykjavík</dim:field>
<dim:field mdschema="dc" element="contributor" qualifier="author">Brandon Velasquez 1996-</dim:field>
<dim:field mdschema="dc" element="description" qualifier="advisor">María Sigríður Guðjónsdóttir 1977-</dim:field>
<dim:field mdschema="dc" element="description" qualifier="advisor">Vijay Chauhan 1986-</dim:field>
<dim:field mdschema="dc" element="description" qualifier="abstract" lang="en">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.</dim:field>
<dim:field mdschema="dc" element="description" qualifier="abstract" lang="is">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&#xd;
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&#xd;
við orkuframleiðslu. Niðurstöður þessa verkefnis er aðferð við að ákvarða bestu skilyrði orkuferlis miðað við hönnunarforsendur og kostnað þess.</dim:field>
<dim:field mdschema="dc" element="date" qualifier="accessioned">2020-06-23T09:21:09Z</dim:field>
<dim:field mdschema="dc" element="date" qualifier="available">2020-06-23T09:21:09Z</dim:field>
<dim:field mdschema="dc" element="date" qualifier="issued">2020-06-23T09:21:10Z</dim:field>
<dim:field mdschema="dc" element="date" qualifier="submitted">2020-06-09T19:18:24Z</dim:field>
<dim:field mdschema="dc" element="date" qualifier="published">2020-06</dim:field>
<dim:field mdschema="dc" element="identifier" qualifier="uri">http://hdl.handle.net/1946/36416</dim:field>
<dim:field mdschema="dc" element="language" qualifier="iso">en</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Orkuverkfræði</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Sustainable energy engineering</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Meistaraprófsritgerðir</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Jarðhitavirkjanir</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Varmafræði</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Bestun</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Tækni- og verkfræðideild</dim:field>
<dim:field mdschema="dc" element="subject" lang="en">Geothermal power plants</dim:field>
<dim:field mdschema="dc" element="subject" lang="en">Thermodynamics</dim:field>
<dim:field mdschema="dc" element="subject" lang="en">Optimization</dim:field>
<dim:field mdschema="dc" element="subject" lang="en">School of Science and Engineering</dim:field>
<dim:field mdschema="dc" element="title" lang="en">Thermoeconomic analysis and optimization of geothermal power cycle utilizing aqueous potassium carbonate for scrubbing superheated steam</dim:field>
<dim:field mdschema="dc" element="title" lang="is">Varmahagfræðigreining og bestun á nýtingu yfirhitaðrar gufu sem er hreinsuð með kalíumkarbónatlausn í orkuferli jarðvarmavirkjunar</dim:field>
<dim:field mdschema="dc" element="type">Thesis</dim:field>
<dim:field mdschema="dc" element="type" qualifier="degree">Master's</dim:field>
</dim:dim></metadata></record></GetRecord></OAI-PMH>