<?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>2026-09-28T01:39:31Z</responseDate><request verb="GetRecord" identifier="oai:skemman.is:1946/23672" metadataPrefix="dim">https://skemman.is/oai/request</request><GetRecord><record><header><identifier>oai:skemman.is:1946/23672</identifier><datestamp>2021-08-24T15:32:51Z</datestamp><setSpec>com_1946_2064</setSpec><setSpec>com_1946_2057</setSpec><setSpec>col_1946_2070</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">Háskóli Íslands</dim:field>
<dim:field mdschema="dc" element="contributor" qualifier="author">Lúðvík Viktorsson 1985-</dim:field>
<dim:field mdschema="dc" element="description" qualifier="advisor">Jón Björn Skúlason 1967-</dim:field>
<dim:field mdschema="dc" element="description" qualifier="advisor">Heinonen, Jukka Taneli 1977-</dim:field>
<dim:field mdschema="dc" element="description" qualifier="advisor">Rúnar Unnþórsson 1971-</dim:field>
<dim:field mdschema="dc" element="description" qualifier="abstract" lang="is">Hlýnun jarðar hefur verið talið ótvírætt vandamál síðustu ár og hafa helstu merki þess verið bráðnun íss, hækkun meðalhitastigs jarðar og hækkandi sjávarborð. Aðalástæða þessa breytinga hefur verið talin losun gróðurhúsalofttegunda af mannavöldum. Ein leið til þess að minnka losun gróðurhúsategunda hefur verið að innleiða nýja og endurnýjanlega orkugjafa eins og vind- og sólarorku. Þessar nýju tækniframfarir fela í sér sveiflukennda framleiðslu sem getur ekki mætt stöðugri orkuþörf. Möguleg lausn á þessu vandamáli er að framleiða vetni úr umframorku fyrrnefndra orkugjafa og umbreyta aftur í rafmagn með efnarafölum eða nota það sem orkugjafa fyrir farartæki. Í þessari rannsókn er markmiðið að skoða vistferilskostnað (e. life cycle cost (LCC)) fyrir vetnisstöð sem tengir endurnýjanlega orkugjafa við lyftara sem notaðir eru á svæðinu þar sem stöðin er staðsett. Notast er við tilviksrannsókn (e. case study) sem aðferðarfræði-ramma en aðal-aðferðin er LCC. Markmiðið var að reikna út heildar vistferilskostnað (e. total life cycle cost (TLCC)) fyrir vetnisstöðina ásamt kostnaði við að framleiða kíló af vetni með jöfnuðu orkuverði (e. levelized cost of energy (LCOE)). Líftíminn var á bilinu 5 til 20 ár.</dim:field>
<dim:field mdschema="dc" element="description" qualifier="abstract" lang="en">Global warming has become an unequivocal problem where the effects are evident in warmer temperature, rising sea levels and melting of glaciers. The main reason is considered anthropogenic greenhouse gas (GHG) emissions. A means to mitigate the GHG emissions has been to implement new state of the art renewable energy sources such as wind and solar energy. Those technologies entail a problem linked to their energy output and as the production is intermittent it is not able to meet the constant energy demand. A possible solution to this problem is to produce hydrogen from excess energy and re-electrify via fuel cells during low production days or use for mobility purposes replacing conventional fossil fuels. In this study a life cycle cost (LCC) analysis is carried out for a decentralized hydrogen refueling station that links renewable energy to material handling vehicles by water electrolysis. This study is carried out within the context of a case study as a research method and utilizes LCC as the main methodology. The goal was to calculate the total life cycle cost (TLCC) and the levelized cost of energy (LCOE) based on the functional unit kg. The selected lifetime ranged from 5 to 20 years.</dim:field>
<dim:field mdschema="dc" element="description" qualifier="sponsorship" lang="is">Íslensk Nýorka og Evrópusambandið</dim:field>
<dim:field mdschema="dc" element="date" qualifier="accessioned">2016-02-04T12:36:15Z</dim:field>
<dim:field mdschema="dc" element="date" qualifier="available">2016-02-04T12:36:15Z</dim:field>
<dim:field mdschema="dc" element="date" qualifier="issued">2016-02-04</dim:field>
<dim:field mdschema="dc" element="date" qualifier="submitted">2016-02-04T11:03:51Z</dim:field>
<dim:field mdschema="dc" element="date" qualifier="published">2016-01</dim:field>
<dim:field mdschema="dc" element="identifier" qualifier="uri">http://hdl.handle.net/1946/23672</dim:field>
<dim:field mdschema="dc" element="language" qualifier="iso">en</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Vélaverkfræði</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Vindorka</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Sólarorka</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Hlýnun jarðar</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Loftslagsbreytingar</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Endurnýjanleg orka</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Vetni</dim:field>
<dim:field mdschema="dc" element="title" lang="is">Skref í átt að vetnishagkerfinu. Vistferilskostnaðargreining fyrir vetnisáfyllingarstöð: Tilviksrannsókn</dim:field>
<dim:field mdschema="dc" element="title" lang="en">A step towards the hydrogen economy. A life cycle cost analysis of a hydrogen refueling station: A case study</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>