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Din avgränsning ger 7 träffar.

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

  transport of dissolved constituents in the near field at the Forsmark site, in particular the Qeq abstraction for diffusive transport.  SKB uses the Qeq parameter to scale concentration gradients in order ... 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

• 2013:35 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 ... around underground 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...

  Innehållstyp: Publikationer

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

  construction and operation of a repository for spent nuclear fuel and for an encapsulation facility. As part of the review, SSM commissions consultants to carry out work in order to obtain information ... results from the consultants’ tasks are reported in SSM’s Technical Note series. This assignment is part of the review regarding the long-term evolution of the rock surrounding the repository. This assignment...

  Innehållstyp: Publikationer

• 2013:24 Modelling of nuclear fuel cladding under loss-of-coolant accident conditions

  We present a unified model for calculation of zirconium alloy fuel cladding rupture during a postulated loss-of-coolant accident in light water reactors. The model treats the Zr alloy solid-to-solid phase ... phase transformation kinetics, cladding creep deformation, oxidation and rupture as a function of temperature and time in an integrated fashion during the transient. The fuel cladding material considered...

  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

  Kärnbränslehantering AB) in 2011 applied to the Swedish government for approval of a proposed solution for disposal of used fuel from Swedish nuclear power reactors and some relatively minor quantities of other fissile ... Note contains results of a recent review of the SKB methods used to determine the influence of reactor depletion on keff of intact PWR fuel in an intact PWR copper canister flooded with water. The review has...

  Innehållstyp: Publikationer

• 2013:32 Upparbetning av utbränt kärnbränsle - En studie med fokus på exportkontroll

  kemikalier av relevans för upparbetning. Vi har valt att låta rapporten vara översiktlig utan att gå in på detaljer för att inte sprida information som kan vara känslig. Därmed kan flera intressenter såsom ... rapporten har projektet resulterat i att personal på FOI och SSM fått ökad insikt i processerna genom bl.a. litteraturstudier. Per Andersson, Malin Ardhammar, Fredrik Nielsen och Jenny Peterson SSM Svenska...

  Innehållstyp: Publikationer

• 2013:26 Degradering av berg, förstärkningar och injektering i tunnlar

  Befintliga och planerade slutförvarsanläggningar för radioaktivt avfall kräver särskilda kunskaper för dess projektering och för att följa upp dess ... Skadorna beror väsentligen på vatteninläckage i bergrummen vilket börjar direkt efter utsprängning. Inläckaget kan leda till olika grader av degradering av berg, injekteringar och bergförstärkningar. Rinnande...

  Innehållstyp: Publikationer