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Studie i att ersätta kärnkraftsreaktor med biobränslealternativ
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
2012 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Replacement of a Nuclear Reactor with Biofuel Option (English)
Abstract [en]

This report contains a study of replacing nuclear power with biofuel. The nuclear plant, OKG north of Oskarshamn in Sweden has been chosen and an extensive literature study about the nuclear plant has been implemented. The main aspect of this report is the availability of biofuels and whether it would be economically sustainable. Sweden’s most common biofuels are examined with regard to scope of use and potential. In the economic analysis the investments and variable costs are investigated. To conclude the work the carbon emissions due to transports of biofuel are examined.The literature study on biofuels were discussed and resulted in that the project was defined towards woodchips. Due to several aspects the project focused on replacing OKG's oldest reactor O1. Furthermore the project focused on just electricity production and combustion with CFB-boilers. Due to the Economic analysis the plant will not be profitable in the current situation. The plant profitability was examined by the net present value method. With 2011s prices, a discount rate of 6 % and an initial investment of 5.78 billion SEK the economic analysis yielded a net present value of -3.53 billion SEK. A higher price of electricity or an alternate income, for example by district heating, would be required to make the plant profitable. It would require a price of electricity of 0.55 SEK/kWh to make the plant profitable. The carbon emission due to transports of biofuel for the new plant was estimated to 6 gram/kWh and this emission was higher than that for the reactor O1.

Abstract [sv]

Denna rapport innefattar en undersökning om att ersätta kärnkraft med biobränsle. Kärnkraftverket OKG norr om Oskarshamn har utsetts och en omfattande informationssökning av OKG har genomförts. Huvudaspekten ligger på tillgången av biobränslen och om det skulle vara ekonomiskt hållbart. För de biobränslen som är vanligast i Sverige utreds användning och potential. I den ekonomiska analysen utreds investeringar och rörliga kostnader. I en senare del av rapporten undersöks koldioxidutsläpp på grund av transporter.Informationssökningen om biobränslen diskuterades och resulterade i att projektet avgränsade sig mot skogsflis. På grund av flera aspekter så valdes ett utbyte av OKG:s äldsta reaktor O1. Projektet inriktade sig mot endast elproduktion och förbränning med CFB-pannor. Ekonomiskt sett så kommer anläggningen inte att bli lönsam i dagsläget. Anläggningens lönsamhet undersöktes med nuvärdesmetoden. Med 2011 års priser, kalkylränta på 6 % och en grundinvestering på 5,78 miljarder så ledde detta ett kapitalvärde på -3,53 miljarder kr. Ett högre elpris eller en alternativ inkomst, från exempelvis fjärrvärme, skulle krävas för att göra anläggningen lönsam. Det elpris som skulle krävas för att göra anläggningen lönsam beräknades och hamnade på 55,0 öre/kWh. Koldioxidutsläppen på grund av transport för den nya anläggningen blev 6 gram/kWh och dessa var därmed högre än för reaktorn O1

Place, publisher, year, edition, pages
2012. , 88 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-99026OAI: oai:DiVA.org:kth-99026DiVA: diva2:540422
Subject / course
Energy Technology; Energy Technology
Educational program
Master of Science in Engineering - Design and Product Realisation; Master of Science in Engineering - Mechanical Engineering
Uppsok
Technology
Supervisors
Examiners
Available from: 2012-08-08 Created: 2012-07-10 Last updated: 2012-08-08Bibliographically approved

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Citation style
  • apa
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  • Other locale
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