Sök

Din avgränsning ger 13 träffar.

• 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

• 2013:14 Approaches used for Clearance of Lands from Nuclear Facilities among Several Countries – Evaluation for Regulatory Input

  SSM has recently established new regulations for clearance of materials, rooms, buildings and land (SSMFS 2011:2). The regulations specify that license holders for practices involving ionising radiation ... rooms and buildings, but give no information on levels to be used for the clearance of land. Instead, it is stated that SSM shall decide on clearance levels on a case by case basis and that the license holder...

  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

• 2013:16 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

• 2013:27 Numerical simulations of headed anchors break in reinforced and non-reinforced concrete structures

  349-06 code open up today for a more detailed analysis where the beneficial impact of reinforcement on anchor capacity can be taken into account. How this analysis can be done is, however, not explicitly ... sufficient reinforcement is present. The objective of the project is to study the effect of reinforcement on the concrete breakout capacity of cast in headed bolts in concrete structures by numerical simulations...

  Innehållstyp: Publikationer

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

  The results are compared with experimental data on cladding rupture strain, temperature and pressure. The effects of heating rate and rod internal pressure on the rupture strain are evaluated by systematic ... alloy, for which no definite constitutive relation is yet available. Tero Manngård and Ali R. Massih SSM English We present a unified model for calculation of zirconium alloy fuel cladding rupture during...

  Innehållstyp: Publikationer

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

  Kärnbränslehantering AB:s anläggningar (SKB) samt Strålsäkerhetsmyndighetens tillsyn av dessa. Kunskap om degraderingsmekanismer och de associerade undermarkmiljöerna är ett viktigt verktyg för SSM:s fortsatta tillsyn ... undermarksanläggningar med långa drifttider samt för granskning av drift- och långsiktig säkerhet för SKB:s planerade anläggningar i Forsmark. I berganläggningarna SFR och Clab uppstår med tiden miljörelaterade...

  Innehållstyp: Publikationer

• 2013:23 Kartläggning av äldre anläggningar där radioaktivt material har lagrats eller hanterats

  kärnenergin då började utnyttjas i reaktorer förknippades hanteringen allt mer med kärnbränslecykeln, d.v.s. utvinning av uran, framställning av kärnbränslen samt omhändertagande av använt kärnbränsle och avfall ... kartläggning av ett antal äldre anläggningar, i första hand sådana som inte är tillsynsobjekt för SSM eller där informationen om anläggningen inte längre är lättillgänglig. Rapporten beskriver kort anläggningarna...

  Innehållstyp: Publikationer

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

  Rapporten beskriver ... 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 Rapporten beskriver principerna ... få tillgång till resultatet. Förutom rapporten har projektet resulterat i att personal på FOI och SSM fått ökad insikt i processerna genom bl.a. litteraturstudier.

  Innehållstyp: Publikationer