Delays in the construction of nuclear reactors due to licensing issues have been a problem across the world, affecting projects in Finland, France, and the United States. Small Modular Reactors (SMRs) emerge as a transition between Generations III+ and IV in order to make nuclear energy more competitive with other energy sources, including renewables. In this study, the SMR NuScale, one of the most promising projects today, is investigated for its conversion into a U-233-producing reactor through the Radkowsky seed-blanket fuel element concept, applied in the Shippingport reactor, in a parametric study. Initially, a validation of the reference reactor (NuScale) was carried out with data from technical documents and papers, thus demonstrating the agreement of the computational model carried out with the SERPENT code. Then, a parametric study is carried out to define the area of the seed and blanket region, proportions of enrichment and pitch length. Finally, a comparison is made between the production of U-233, TRU reduction, burn-up extension and neutronic and thermohydraulic safety parameters. This study demonstrates an improvement in the conversion factor and a considerable reduction in the production of TRU, in addition to the production of U-233 with a low proportion of other uranium isotopes that can lead to the beginning of the thorium cycle with already consolidated technologies.

O trabalho realizado possui o propósito de aumentar as possibilidades na tomada de decisão, a luz de uma abordagem financeira em relação a implantação de terminais logísticos ao redor da BR 493/RJ - arco metropolitano. As oscilações e choques externos demandam uma abordagem probabilística, a fim de, flexibilizar a tomada de decisão e mitigar o risco inerente a projetos expostos a volatilidade de mercado. A aplicação do modelo de Black & Scholes em opções reais possibilita a absorção de choques externos e mitigação do risco inerente a precificação do ativo analisado. Confrontando o modelo anterior, utilizamos o modelo de Geske ajustado por Kemna para opções composta. Observando que ambas são opções europeias e possuem duas possibilidades de investimento inicial para a tomada de decisão.

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