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Din avgränsning ger 45 träffar.

• 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

• 2014:28 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

• 2014:18 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

• 2014:14 Multivariatanalys av radioaktivitetsdata från utsläpp till luft och vatten från Forsmarks Kraftgrupp AB och i omgivningen av Forsmark

  Syftet med denna studie var att undersöka korrelationer mellan uppmätt utsläppt radioaktivitet från kärnkraftverket i Forsmark och uppmätta halter radioaktivitet i omgivningen av Co-58, Co-60, Cs-137, Fe-59, Mn-54 och Zn-65. Ett mål var att se hur olika provslag i omgivningen av Forsmark fungerar som indikatorer för den uppmätta utsläppta radioaktiviteten.

  Innehållstyp: Publikationer