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In this report, simple hydrodynamic models are used for studying the effects of coolant inertia on fuel-to-coolant heat transfer and coolant flow under reactivity initiated accidents in light water reactors. The objective is to assess if the inertia effects are important enough to warrant modification of QT-COOL, a coolant channel module for two-phase flow that has recently been implemented as...

Content type: Publications

2019:15 3D Thermo-Mechanical Coupled Modelling of Thermo-Seismic Response of a Fractured Rock Mass related to the Final Disposal of Spent Nuclear Fuel and Nuclear Waste in Hard Rock

SSM perspective Background When assessing the long-term safety of a repository for spent nuclear fuel it is important to consider future earthquakes. Previous studies by Yoon et al. (2014, SSM Report 2014:59) and (2016, SSM Report 2016:23) investigated the fracture responses due to heat and earthquakes at major deformation zones using a 2D thermo-mechanical coupled model that uses a Particle...

Content type: Publications

2019:17 ENSREG 1st Topical Peer Review – Ageing Management, Swedish National Action Plan

SSM perspective Background The European Union’s Nuclear Safety Directive 2014/87/EURATOM (NSD) requires the member states to undertake topical peer reviews (TPR) every 6 years with the first starting in 2017. The member states, acting through the European Nuclear Safety Regulators Group (ENSREG), have decided that the topic for the first topical peer review is ageing management. This report...

Content type: Publications

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02:02 R2/R0-WTR Decommissioning Cost Comparison and Benchmarking Analysis

02:53 SFR 1 Vault Database

02:21 (SSI 2002:12) Formulation and Presentation of Risk Assessments to Address Risk Targets for Radioactive Waste Disposal

01:03 SKIs and SSIs Joint Review of SKBs Safety Assessment Report, SR 97

01:24 Final Disposal of Spent Nuclear Fuel in Sweden

01:45 Composition of Whiskers Grown on Copper in Repository Environment

99:44 The Effects of Impurities on the Properties of OFP Copper Specified for the Copper Iron Canister

2017:20 Assessment of inertia effects on transient clad-to-coolant heat transfer and coolant flow under reactivity initiated accidents

2019:15 3D Thermo-Mechanical Coupled Modelling of Thermo-Seismic Response of a Fractured Rock Mass related to the Final Disposal of Spent Nuclear Fuel and Nuclear Waste in Hard Rock

2019:17 ENSREG 1st Topical Peer Review – Ageing Management, Swedish National Action Plan

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