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Open AccessArticle

Multiobjective Mixed Integer Nonlinear Model to Plan the Schedule for the Final Disposal of the Spent Nuclear Fuel in Finland

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Department of Mathematics and Statistics, University of Turku, FI-20014 Turku, Finland
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Teollisuuden Voima Oyj, Olkiluoto, 27160 Eurajoki, Finland
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Author to whom correspondence should be addressed.
Mathematics 2020, 8(4), 528; https://doi.org/10.3390/math8040528
Received: 2 March 2020 / Revised: 23 March 2020 / Accepted: 31 March 2020 / Published: 3 April 2020
(This article belongs to the Special Issue Recent Trends in Multiobjective Optimization and Optimal Control)
The safe disposal of the spent nuclear fuel is the important part of the nuclear power production. In this paper, we model the geological disposal in Finland covering objectives related to the interim storage, the encapsulation facility, the disposal facility, and the costs. A notable fact is that all the fuel types used in Finland are taken into account. The resulting optimization model is of a multiobjective nonlinear mixed integer type having eight objectives. The model is solved with the interactive method utilizing the special type of the achievement scalarizing functions. From this, we obtain a disposal schedule giving amounts of canisters to encapsulate in each time period. The results obtained are analyzed from the practical point of view. View Full-Text
Keywords: achievement scalarizing functions; interactive method; multiobjective optimization; spent nuclear fuel disposal achievement scalarizing functions; interactive method; multiobjective optimization; spent nuclear fuel disposal
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Montonen, O.; Eronen, V.-P.; Ranta, T.; Huttunen, J.A.S.; Mäkelä, M.M. Multiobjective Mixed Integer Nonlinear Model to Plan the Schedule for the Final Disposal of the Spent Nuclear Fuel in Finland. Mathematics 2020, 8, 528.

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