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Din avgränsning ger 27 träffar.

• 2011:26 The influence of temperature and fluid pressure on the fracture network evolution around deposition holes of a KBS-3V concept at Forsmark, Sweden

  preparation for the review of SKB’s license application for disposal of spent nuclear fuel, SSM is conducting studies to evaluate the performance of the multi-barrier principle on which the KBS-3 concept is based ... providing new pathways for the spent fuel to escape the repository. For SSM, the goal of this study is to improve the scientific basis for the evaluation of the performance of the bedrock as a barrier...

  Innehållstyp: Publikationer

• 2011:03 On Decommissioning Cost for Nuclear Power Plants

  estimated costs for the D&D of nuclear power plants that have been shut down permanently. It also reports on the availability of detailed information for actual nuclear power plant D&D cost breakdowns. The results ... decommissioning of the permanently shut down central heating reactor in Ågesta. Geoff Varley and Chris Rush SSM English This research report summarizes what has changed over the latest 15 years concerning actual...

  Innehållstyp: Publikationer

• 2011:19 Experimental evaluation of influence from residual stresses on crack initiation and ductile crack growth at high primary loads

  weld-induced residual stresses in some materials, for instance stainless steel welds. The R6-method on the other hand tends to give overly conservative assessment results. The significance of the secondary ... materials within nuclear applications has been studied earlier using an analytical approach by a SSM-financed study (SSM Research Report 2009:27). In that study a deterministic safety evaluation procedure was proposed...

  Innehållstyp: Publikationer

• 2011:21 Workshop on spent fuel performance and radionuclide chemistry -Rånäs 2010: Assessment of some outstanding issues

  The safety assessment for final disposal of spent nuclear fuel has to comprehensively address the stage when containment barriers have failed and when radionuclide releases occur to the ... 7-9/6-2010 Paul Brown, Christian Ekberg, Christophe Jégou, Günther Meinrath, Heino Nitsche and Bo Strömberg SSM English The safety assessment for final disposal of spent nuclear fuel has to comprehensively address...

  Innehållstyp: Publikationer

• 2011:30 A fatigue analysis including environmental effects for a pipe system in a Swedish BWR

  The effect of the environment on fatigue design has been the subject of intense study in USA, Japan and elsewhere. Several reports indicate a potentially large influence of the environment, leading to ... proposal of entirely new analysis procedures. SSM has in an earlier project sponsored research to evaluate the technical basis for these proposals, see SSM Research Report 2011:04. In the current report...

  Innehållstyp: Publikationer

• 2011:31 Allocation of Decommissioning and Waste Liabilities

  financial assets in the Swedish Nuclear Waste Fund. Adequate funding will provide forthcoming generation’s with the financial means to decommission and dismantle older nuclear facilities that are part of the ... accumulated total will balance the future environmental liabilities. SSM undertakes reviews of crucial questions that may have an effect on these provisions. In order to enhance transparency and thereby introduce...

  Innehållstyp: Publikationer

• 2011:29 Research and Development Program in Reactor Diagnostics and Monitoring with Neutron Noise Methods, Stage 17

  reported in SKI and SSM reports, as listed below and in the Summary. The results have also been published in international journals and have been included in both licentiate- and doctor’s degrees. The objective ... a basis for SSM’s supervision by developing methods for identification and localization of perturbations in reactor cores. 100 Imre Pázsit, Tran Hoai Nam, Victor Dykin and Anders Jonsson SSM English This...

  Innehållstyp: Publikationer

• 2011:11 Handling Interfaces and Time-varying Properties in Radionuclide Transport Models

  Quintessa’s QPAC code has been used to investigate the Qeq approach. The conclusions from this simulation study are the following. The basic approach to calculating Qeq values is sound, however, narrow ... the potential to increase the release significantly. Quintessa’s AMBER software has been used to explore the effects of glacial episodes on radionuclide transport with time-varying properties. The simulation...

  Innehållstyp: Publikationer

• 2011:16 Modelling of ultrasonic testing of cracks in cladding

  During the last two decades, SSM has supported research to develop a model for the non-destructive test situation based on ultrasonic technique. Such a model is important in many ways, for example to supplement ... are often equipped with a cladding material to prevent material degradation by the influence of media on the surface. This cladding material, often anisotropic, makes the ultrasonic examination more difficult...

  Innehållstyp: Publikationer

• 2011:33 Mathematical modelling of ultrasonic testing of components with defects close to a non-planar surface

  corrugated interface can have important, and in some cases, major effects on the signal response. The results depend crucially on the parameters chosen for the corrugation also the material properties can ... can affect the results. 100 Jonathan Westlund and Anders Boström SSM English The report describes work that has been performed in order to model ultrasonic testing of components that contain a defect close...

  Innehållstyp: Publikationer