Progress of a cost optimization for an HLW repository in Korea |
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| Authors: | SK Kim MS Lee HJ Choi JW Choi Tai-Wan Kwak |
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| Affiliation: | 1. Faculty of Civil Engineering, Department of Mathematics, Slovak University of Technology in Bratislava, Radlinského 11, Bratislava, 813 68, Slovakia;2. Faculty of Information Studies, Ljubljanska, 8000 Novo Mesto, Slovenia;3. Faculty of Electrical Engineering and Computer Science, University of Maribor, Koro?ka cesta 46, Maribor 2000, Slovenia;4. Faculty of Mathematics and Physics, University of Ljubljana, Ljubljana 1000, Slovenia;5. FAMNIT, University of Primorska, Koper 6000, Slovenia |
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| Abstract: | This paper provides the results of a cost optimization for a CANDU spent fuel canister as well as the operational duration of an HLW repository. From the design change of an advanced-CANDU spent fuel canister, the overall costs were expected to be reduced by 124 MEUR in the case of disposing of 36,000 tU in an HLW repository, and it was also found that the optimal operational duration for an HLW repository was 83 years, to minimize the total cost. But this operational duration was only calculated from the aspect of cost benefits with economics' perspectives.We confirmed that the canister and operational duration are the dominant cost drivers for surface facilities and underground facilities for a cost optimization, respectively. Especially, the manufacturing method of an outer canister using the cold spray coating technique which was developed through collaboration with a domestic company is suggested to minimize the overall costs. |
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