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Teknoekonomisk analys av fjärrvärmeproduktion i kärnkraftvärmeverk bestående av små modulära reaktorer
KTH, School of Industrial Engineering and Management (ITM).
KTH, School of Industrial Engineering and Management (ITM).
2023 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [sv]

Utvecklingen och intresset för små modulära kärnkraftverk (SMR) har ökat det senaste årtiondet i flera länder i samband med målet att minska växthusgaser. Tack vare nya möjligheter att driva kärnkraftverk närmare konsumenten på grund av SMRs flexibla egenskaper blir det mer relevant att undersöka möjligheten att driva ett SMR som ett kärnkraftvärmeverk (KKVV) och koppla det till fjärrvärmenätet. Syftet med denna rapport är att undersöka om det är ekonomiskt lönsamt att driva ett SMR som KKVV gentemot som kärnkraftverk (KKV). De ekonomiska mätvärdena som undersöks i denna studie är nettonuvärde (NPV) och levelized cost of electricity (LCOE). En förenklad ångcykelmodell används för att kunna ta fram verkningsgraden på ett KKVV som följer Stockholms värmelast. Resultaten i denna rapport ger gynnsamma värden på LCOE och NPV för KKVVet vilket indikerar att det är mer lönsamt att driva ett SMR som KKVV än som KKV. Det ska dock tas hänsyn till att den elektriska verkningsgraden som fås från ångcykelmodellen är något lägre än i traditionella kärnkraftverk, samt att de uppskattade kostnaderna kan ha varit högre än i andra kraftverk.

Abstract [en]

The development and interest in small modular nuclear reactors (SMRs) have increased in several countries over the past decade, in connection with the goal of reducing greenhouse gases. Thanks to new possibilities to operate nuclear power plants closer to consumers due to the flexible nature of SMRs, it becomes more relevant to explore the possibility of operating an SMR as a nuclear cogeneration plant (NCP) and connecting it to the district heating network. The purpose of this report is to investigate whether it is economically viable to operate an SMR as an NCP versus as a nuclear power plant (NPP). The financial metrics examined in this study are net present value (NPV) and levelized cost of electricity (LCOE). In the methodology, a simplified steam cycle was created to determine the power plant's efficiency, and a model of Stockholm's annual heat demand was developed. The results in this report present favorable values for LCOE and NPV for the NCP, indicating that it is more profitable to operate an SMR as an NCP than as an NPP. However, it should be taken into account that the electrical efficiency obtained from the steam cycle model is somewhat lower than those of traditional nuclear power plants, and that the estimated costs may have been higher than in other power plants.

Place, publisher, year, edition, pages
2023. , p. 33
Series
TRITA-ITM-EX ; 2023:176
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-333156OAI: oai:DiVA.org:kth-333156DiVA, id: diva2:1784542
Supervisors
Examiners
Available from: 2023-07-27 Created: 2023-07-27 Last updated: 2023-07-27Bibliographically approved

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CiteExportLink to record
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