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Teknoekonomisk analys av alternativ elproduktion till svensk kärnkraft
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
2015 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Techno-economic Analysis of Alternative Power Generation Sources for Nuclear Power in Sweden (English)
Abstract [sv]

Runt hälften av Sveriges elförsörjning kommer från kärnkraft. De tre verk som finns börjar alla närma sig den beräknade livslängden på 40 år. I dagsläget – dvs. år 2015 – så har tre rektorer redan uppnått deras framtagna livslängder. Dessa är OKG 1, OKG 2 samt Ringhals 2 vars livslängder var 2012, 2014 respektive 2015. Detta projekt har som mål att undersöka om kärnkraften kan ersättas med enbart förnybar elproduktion.

 

Inledningsvis görs en litteraturstudie där en del fakta tas fram angående dagens existerande kärnkraft; såsom livslängder, byggnadsår, reaktortyper samt elproduktion. Det sistnämnda ligger under de senaste tio åren som mest på 70,3 TWh och minimum har varit 50 TWh.

 

Därefter undersöks alternativa förnyelsebara tekniker som finns. De som framkom mest troliga att använda i Sverige i dagsläget konstaterades vara vatten-, vind- och solkraft. Kraftvärme är även den ett eventuellt utbyte och nämns kortfattat, men denna uteslöts ur denna analys.

 

I metoden används en webbaserad beräkningsapplikation framtagen av Elforsk. Genom att anta rimliga värden baserad på fakta ur litteraturstudien – exempelvis som att den totala resursen i Sveriges vattendrag sträcker sig uppemot hela 170 TWh – tas en lämplig ersättning till kärnkraften fram.

 

Medelvärdet för kärnkraftsproduktionen under de senaste sex åren beräknas till 58,3 TWh. Två varianter – en inklusive och en exklusive solkraft anpassad för villa – visar att det är möjligt att ersätta kärnkraftsproduktionens medelvärde med förnybar el. 

Abstract [en]

About half of Sweden’s electricity comes from nuclear power. The three plants currently in existence are all approaching their 40-year calculated life span. Today – in year 2015 – three of the reactors have already passed their engineered life spans. Those are OKG 1, OKG 2 and Ringhals 2, whose lifespans were calculated to 2012, 2014 and 2015 respectively. The goals of this project are to examine whether the nuclear power can be replaced by renewable electricity.

 

Initially a literature study is made, where facts about the existent nuclear plants are presented; life spans, year of construction, reactor types and electricity production. The latter have had a maximum of 70,3 TWh and a minimum of 50 TWh during the past decade.

 

Thereafter, the different renewable techniques are investigated. Those who appeared most suitable in Sweden today were water-, wind- and solar power. Combined heat and power is also a possible substitution and is shortly mentioned, but was excluded from this project.

 

The method uses a web-based calculation-application produced by Elforsk. By assuming plausible values based on facts in the literature study – for example that the total resource in Sweden’s watercourses extends to 170 TWh – a suitable replacement for the nuclear power is presented.

 

The average value for the nuclear production during the past six years is calculated to 58,3 TWh. Two scenarios – one including and one excluding solar power for villas – show that it is possible to replace the nuclear production’s average value with renewable electricity. 

Place, publisher, year, edition, pages
2015.
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-170901OAI: oai:DiVA.org:kth-170901DiVA: diva2:840900
Subject / course
Energy Technology
Educational program
Master of Science in Engineering - Vehicle Engineering
Available from: 2015-07-14 Created: 2015-07-09 Last updated: 2015-07-14Bibliographically approved

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