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Din avgränsning ger 33 träffar.

• 2013:01 Validation of Weld Residual Stress Modeling in the NRC International Round Robin Study

  stresses (WRS) have a large influence on the behavior of cracks growing under normal operation loads and on the leakage flow from a through-wall crack. Accurate prediction on weld residual stresses is important ... numerically calculated residual stress fields in dissimilar welds measured by different methods. The present report describes the results of the project with special focus on the contribution from Inspecta Technology...

  Innehållstyp: Publikationer

• 2013:35 Technical Note, Rock Mechanics – Confidence of SKB’s models for predicting the occurrence of a damage zone around the excavations – Main Review Phase

  This assignment, performed at Southwest Research Institute, focusses on evaluating SKB’s assessment of potential occurrence of damaged rock zones (also referred to as excavation-damaged zone or EDZ) around ... excavations at the site. This report presents the authors’ evaluation of SKB’s assessment in the specific area based on questions raised by SSM. The evaluation includes independent calculations by the authors using...

  Innehållstyp: Publikationer

• 2013:36 Technical Note, Review and assessment of aspects of the Qeq concept – Main Review Phase

  Waste Management Company (SKB) developed to represent transport of dissolved constituents in the near field at the Forsmark site, in particular the Qeq abstraction for diffusive transport. SKB uses the Qeq ... in order to estimate dissolved-species fluxes from the far-field environment to the canister surface and from a canister breach to the far field. To accomplish the review assignment, we (i) reviewed relevant...

  Innehållstyp: Publikationer

• 2013:33 Technical Note, Seismology – Frequencies and mechanisms. -Initial review phase

  The Swedish Radiation Safety Authority (SSM) reviews the Swedish Nuclear Fuel Company’s (SKB) applications under the Act on Nuclear Activities (SFS 1984:3) for the construction and operation of a repository ... As part of the review, SSM commissions consultants to carry out work in order to obtain information on specific issues. The results from the consultants’ tasks are reported in SSM’s Technical Note series...

  Innehållstyp: Publikationer

• 2013:29 Regulatory Approaches in Nuclear Power Supervision

  follow-up study was to support SSM in further understanding regulatory approaches and how they can be combined as part of effective strategies. The survey was intended to assist SSM in identifying current standards ... approaches depend on the nature of regulatory supervision. There is also a tendency to combine additional approaches as a functional area of regulatory supervision becomes more complex. SSM will use the findings...

  Innehållstyp: Publikationer

• 2013:13 Review of Dismantling Costs - Nuclear Installations

  installations at the Studsvik Site from a methodological perspective. Moreover, ways to enhance the quality on cost assessments made at an early stage of decommissioning projects are discussed in more detail. The ... active learning processes in the field of how more systematic use of methodology may enhance the over-all robustness and precision of future cost assessments. Marek Vasko SSM English In this study three reviews...

  Innehållstyp: Publikationer

• 2013:16 Technical Note, Assessment of PWR fuel depletion and of neutron multiplication factors for intact PWR fuel copper canisters – main review phase

  the influence of reactor depletion on keff of intact PWR fuel in an intact PWR copper canister flooded with water. The review has, as far as possible, been based on general information in the licensing ... The review method validation is primarily based on keff and reactivity benchmarks rather on composition benchmarks as used by SKB. Dennis Mennerdahl SSM English SKB (Svensk Kärnbränslehantering AB) in...

  Innehållstyp: Publikationer

• 2013:07 Corrosion of copper in distilled water without molecular oxygen and the detection of produced hydrogen

  this was not possible in the experimental set-up used. Thus it cannot be excluded that formed species on surfaces could have been altered during handling of specimens between exposure and surface analysis ... indicate that the reaction products are predominately comprised of oxide and hydroxide. Furthermore, based on the visual appearance, the reaction products formed are solid and of a three dimensional character...

  Innehållstyp: Publikationer

• 2013:09 An Application of the Functional Resonance Analysis Method (FRAM) to Risk Assessment of Organisational Change

  organisational changes, based on the principles of resilience engineering. The approach in question was the Functional Resonance Analysis Method (FRAM). Whereas established approaches focus on risks coming from failure ... failure or malfunctioning of components, alone or in combination, resilience engineering focuses on the common functions and processes that provide the basis for both successes and failures. Resilience...

  Innehållstyp: Publikationer

• 2013:08 Licensing of safety critical software for nuclear reactors

  methods for specifying, designing and coding have an important impact on the implementation. Existing standards provide limited guidance on the regulatory and safety assessment of these factors. An undesirable ... experts. The major result of the work is the identification of consensus and common technical positions on a set of important licensing issues raised by the design and operation of computer based systems used...

  Innehållstyp: Publikationer