<?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>2026-09-27T04:26:19Z</responseDate><request verb="GetRecord" identifier="oai:skemman.is:1946/27812" metadataPrefix="dim">https://skemman.is/oai/request</request><GetRecord><record><header><identifier>oai:skemman.is:1946/27812</identifier><datestamp>2021-08-24T14:30:32Z</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">Emil Þorvaldsson 1989-</dim:field>
<dim:field mdschema="dc" element="description" qualifier="advisor">Sverdrup, Harald Ulrik 1954-</dim:field>
<dim:field mdschema="dc" element="description" qualifier="advisor">Anna Hulda Ólafsdóttir 1985-</dim:field>
<dim:field mdschema="dc" element="description" qualifier="abstract" lang="en">Iceland is an island with a lot of energy potential in the form of hydro- and geother-&#xd;
mal energy. But still there is enormous amount of fossil fuel imports each year. This&#xd;
posses an enormous economic problem for Iceland as fossil fuels are non renewable and&#xd;
will eventually run out. The paper explores the possibility of utilizing Wood grown in&#xd;
Iceland through the process of pyrolysis and upgrading of the pyrolysis products with&#xd;
current known technology and product yields. A literary review conducted on the topic&#xd;
focusing on the production of fuels, showed that 400 t / d facility utilizing a fluidizing bed&#xd;
reactor, where the pyrolysis products would then be upgraded into fuels through further&#xd;
processing. Expanding on a forestry model proposed by Sverdrup and Ólafsdóttir (2017)&#xd;
and assuming that all grassland in Iceland is rigth for forestry, We conclude that maxi-&#xd;
mum utilization of a 400 t / d would at the earliest be in the year 2050, if all of the wood&#xd;
harvested in Iceland would go through the process. The latest would be in the year 2063&#xd;
if 30 % of all harvested wood would be utilized. Maximum yields amount to 49 thousand&#xd;
metric tons of fuel. This amounts to around 10% of the current total fossil fuel use in&#xd;
Iceland. These results are promissing, as they show that it is indeed possible to produce&#xd;
fuel for native wood in Iceland. but further reasearch is needed as to what other possible&#xd;
sources could be utilized to satisfy fuel demand.</dim:field>
<dim:field mdschema="dc" element="description" qualifier="abstract" lang="is">Á Íslandi eru miklir möguleikar er kemur að endurnýjanlegri orku. Áræðni á óendurný-&#xd;
janlega orkugjafa valda þó miklum efnahagslegum erfiðleikum fyrir ísland, þar sem upp-&#xd;
spretta þeirra mun á endanum klárast. Þessi ritgerð skoðar möguleikan á nýtingu íslensk&#xd;
viðar til framleiðslu á lífeldsneyti með núverandi tækni og afköstum. Ritrýni leiddi í ljós&#xd;
að möguleikar eru á framleiðslu uppá 400 t / d . Niðurstaða útreikninga með hliðsjónar af&#xd;
skógræktarmódeli sem lýst var af Sverdrup and Ólafsdóttir (2017) með þeirri viðbót að&#xd;
gert er ráð fyrir að allt graslendi á íslandi er nýtanlegt sem skóglendi, þetta leiddi í ljós&#xd;
að hægt væri að ná hámarks afköstum í fyrsta lagi árið 2050 ef öll innlend framleiðsla&#xd;
væri breytt í eldsneyti, en í seinnasta lagi 2063. Við hámarksframleiðni væru um tæp 49&#xd;
þúsund ton af eldsneyti að ræða, en það er um 10% af núverandi þörf. Þessar niðurstöður&#xd;
lofa góðu þar sem þær sýna fram á að hægt er að framleiða eldsneyti úr íslenskum við.&#xd;
Áframhaldandi ransókn er þó þörf til þess að skoða fleiri mögulegar uppsprettur til að&#xd;
uppfylla þá eftirspurn sem er til staðar.</dim:field>
<dim:field mdschema="dc" element="date" qualifier="accessioned">2017-06-02T14:55:38Z</dim:field>
<dim:field mdschema="dc" element="date" qualifier="available">2017-06-02T14:55:38Z</dim:field>
<dim:field mdschema="dc" element="date" qualifier="issued">2017-06-02</dim:field>
<dim:field mdschema="dc" element="date" qualifier="submitted">2017-06-02T14:47:27Z</dim:field>
<dim:field mdschema="dc" element="date" qualifier="published">2017-05</dim:field>
<dim:field mdschema="dc" element="identifier" qualifier="uri">http://hdl.handle.net/1946/27812</dim:field>
<dim:field mdschema="dc" element="language" qualifier="iso">en</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Iðnaðarverkfræði</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Eldsneytisframleiðsla</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Skógar</dim:field>
<dim:field mdschema="dc" element="subject" lang="is">Líkanagerð</dim:field>
<dim:field mdschema="dc" element="title" lang="en">Lignocellulosic Bio Fuel Production In Iceland, A System Dynamics Approach.</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>