Sök

Din avgränsning ger 126 träffar.

• 2014:55 Technical Note, Further Reproduction of SKB’s Calculation Cases and Independent

  Som en del av säkerhetsanalysen SR-Site presenterar SKB modellresultat som illustrerar kapseln och buffertens säkerhetsfunktioner. I var och en av de fem beräkningsfallen är delar av kapsel och/eller buffert frånvarande i modellen av slutförvarssystemet. Modellresultaten jämförs inte med säkerhetskriterier eftersom beräkningsfallen innehåller...

  Innehållstyp: Publikationer

• 2014:47 Technical Note, Assessment of groundwater salinity evolution at repository depth and especially the impact of dilute water infiltration

  Groundwater compositions entering deposition holes in the repository will be progressively diluted over time because of expected changes of topographic and climatic conditions at Forsmark. This is a long-term safety issue because very dilute water could destabilise compacted bentonite and erode buffer, leading to advective movement of sulphide-containing water to the canister surface. SKB’s...

  Innehållstyp: Publikationer

• 2014:52 Beständiga förändringar av säkerhetskulturen

  Projektet har genomförts dels som en litteraturstudie och dels som en intervjuserie vid svenska kärnkraftverk. Litteraturstudien resulterade i en beskrivning av viktiga komponenter inom området säkerhetskultur, faktorer som anses möjliggöra eller förhindra att en god säkerhetskultur uppnås samt metoder och arbetssätt för att utveckla och förbättra...

  Innehållstyp: Publikationer

• 2014:28 Numerical simulation of ductile crack growth in residual stress fields

  The study has shown on the capability of the cell model in capturing the effects on ductile tearing from limited pre-load levels and a residual stress field. Some of the conclusions are as follows: No distinctive influence on the material fracture toughness is observed from pre-loading (work hardening), both tensile and compressive, at room temperature of 1.5 or 3 % total strain. The cell...

  Innehållstyp: Publikationer

• 2014:27 Regulation applying to welding of pressure equipment – a comparative study

  The PED was in force in November 1999 and has been mandatory in European Union Member States since May 2002. Most of the standards referred to in the PED are relatively new although some of the standards were adopted in the early 1990s. On the other hand, the ASME B&PV Code has been used for a long time now and is the result of several decades of industrial experiences. The authors present...

  Innehållstyp: Publikationer

• 2014:18 Evaluation of the Halden IFA-650 loss-of-coolant accident experiments 2, 3 and 4

  The analytical tools, which are fuel rod computer codes, that Quantum Technologies AB use and develop, contain models of several of the phenomena that are acting on the nuclear fuel (cladding temperature, fission gas driven pressure, strain and stress in the cladding, rod rupture, etc.) and how the separate effects interact in the complex integrated manner. The codes are under constant...

  Innehållstyp: Publikationer

• 2014:09 Further Development of the Core Simulator CORE SIM: Extension to coupled capabilities for BWRs

  The developed tool is fully MatLab based and requires a set of input data from a commercial static core simulator. The driving perturbation can be specified both as a perturbation in thermo-hydraulic parameters or directly as a perturbation in macroscopic cross-sections. As output, the 3-dimensional spatial distribution of the noise in coolant density, pressure, enthalpy, inlet velocity, fuel...

  Innehållstyp: Publikationer

• 2014:01 Cost Estimating for Decommissioning Nuclear Reactors in Sweden

  In Sweden, decommissioning cost estimates are core inputs to the process of calculating licensee contributions to the Swedish national fund for radioactive waste management and decommissioning. Under the present system, the decommissioning cost estimates are produced by licensees every three years and formally submitted to the Swedish Radiation Safety Authority (SSM), which reviews the...

  Innehållstyp: Publikationer

• 2014:49 Samhällskostnader för hudcancer 2011

  I denna rapport presenteras förekomsten av olika hudcancerdiagnoser i Sverige 2011 samt samhällskostnaderna relaterat till dessa diagnoser. Dessutom redovisas en sammanställning av genomförda hälsoekonomiska utvärderingar av preventiva insatser mot hudcancer som finns publicerat internationellt. De totala kostnaderna för hudcancer i Sverige år 2011 beräknas...

  Innehållstyp: Publikationer

• 2014:16 Recent Research on EMF and Health Risk, Ninth report from SSM’s Scientific Council on Electromagnetic Fields, 2014

  The objective of the report is to cover the previous year’s research in the area of electromagnetic fields (EMF). The report gives the Authority an overview and provides an important basis for risk assessment. The present annual report is number nine in the series and covers studies published up to and including September 2013. It covers different areas of EMF (static, low frequency...

  Innehållstyp: Publikationer