Sökning: "Best-Estimate"

Visar resultat 11 - 14 av 14 avhandlingar innehållade ordet Best-Estimate.

  1. 11. Application of a system thermal-hydraulics code to development of validation process for coupled STH-CFD codes

    Författare :Kaspar Kööp; Pavel Kudinov; Mariano Tarantino; KTH; []
    Nyckelord :Fysik; Physics;

    Sammanfattning : Generation IV reactors are designed to provide sustainable energy generation, minimize waste production and excel in safety. Due to lack of operational experience, ever evolving design and stringent safety requirements, these novel reactors have to rely heavily on simulations. LÄS MER

  3. 12. Informing Severe Accident Management Guidelines for a Pressurized Water Reactor with MELCOR Simulations

    Författare :Nan Zhao; Sevostian Bechta; Jinho Song; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Severe accident management guidelines SAMG ; SAMG verification validation; numerical simulation; SAMG entry condition; SAMG actions; primary-side bleed feed.; Kärnenergiteknik; Nuclear Engineering;

    Sammanfattning : Severe accident management guidelines (SAMGs) play an important role in the hierarchical structure of the defense-in-depth (DiD) principle of reactor safety. Among different methods to verify and validate the effectiveness of SAMG on mitigating severe accident consequences, the approach of numerical simulations using best-estimate computer codes was extensively applied to evaluate the SAMG and SAM actions. LÄS MER

  4. 13. Essays on Incomplete Information in Financial Markets

    Författare :Frederik Lundtofte; Nationalekonomiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; ekonomiska system; ekonomisk politik; Financial science; Finansiering; ekonomisk teori; economic policy; Nationalekonomi; ekonometri; Economics; econometrics; economic theory; factor pricing models; hedging demands; estimation risk; partial information; learning; economic systems;

    Sammanfattning : This thesis consists of three essays on incomplete information in financial markets, two of which are theoretical, and one that is mainly of an empirical nature. All three essays concern parameter uncertainty, and they employ a continuous-time framework. LÄS MER

  5. 14. Development and Application of Uncertainty Analysis Approaches for MELCOR Simulations of Severe Accidents

    Författare :Wanhong Wang; Weimin Ma; Florian Fichot; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Severe accident; MELCOR; uncertainty analysis; Wilks’ method; Bootstrapped artificial neural network; deterministic sampling method; 95 95 tolerance limit.; Svåra haverier; MELCOR; osäkerhetsanalys; Wilks’ metod; artificiella neuronnät; deterministiska urvalsmetoder; 95 95-toleransgränser.;

    Sammanfattning : The contemporary needs in advancing safety analysis methods and the increasing stringency in light water reactor (LWR) safety in the post-Fukushima era require more advanced and systematical approaches for severe accident analyses. The best estimate plus uncertainty (BEPU) methods are among such approaches and have been widely used for deterministic safety analysis (DSA) of design basis accidents (DBAs). LÄS MER