5th Meeting of the “European MELCOR User Group“ KTH, Stockholm, Sweden May 02-03, 2013 TitleSpeakerAgenda List of Participants Welcome and IntroductionS. BechtaSpent Fuel Pool boil down calculations with MELCOR 1.8.6B. S. JaeckelSFP Model for VVER 1000K. ManchevaAspects of Modeling a Spent Fuel PoolM. LoefflerDecay heat pre-processing for MELCOR 1.8.6P. VokacPhebus FPT3 test Stand Alone Containment Thermal hydraulics, Aerosol and Iodine Benchmark with MELCOR 1.8.6G. L. HorvathMELCOR 2.1 Verification on MARVIKEN Critical Flow ExperimentsN. MosunovaMELCOR SBO analyses for a 2-loop PWR : ISGTR with FP mitigation by SG secondary re-fillA. RydlMELCOR application to AP1000 SBO SimulationY. ChenSensitivity Studies related to MELCOR 2.1 Nodalizations for VVER 1000 (V230) Plant ModelsE. BorisovImproved In-Vessel-Retention ModelW. RappGeneric containment simulation using MELCOR 2.1J. JancovicPSI air oxidation model in MELCOR: Part 1: Implementation and verificationJ. C. BirchleyPSI air oxidation model in MELCOR: Part 2: Analysis of experiments and model assessmentL. Fernandez‑MoguelCoupling MELCOR 1.8.6 and GASFLOW for Enhanced Simulation of Hydrogen Distribution During Accident AnalysisT. SzaboMELCOR Code Performance ImprovementI. DrobyshevskayaCurrent Activities at GRS Regarding the Application of the MELCOR CodeT. SteinroetterOverview of MELCOR Activities in CIEMAT (2012)C. LopezOverview of MELCOR Activities at KTHW. MaSNAP OverviewJ. PhillipsMELCOR Simulation of SBO Scenarios of Fukushima-I-2 BWR within first 96 hrsY. ChenFinal DiscussionW. Ma Contact Nuclear Energy and Safety (NES)Laboratory for Reactor-Physics and Thermal Hydraulics (LRT)Severe Accident Research Group (SACRE)Paul Scherrer Institute5232 Villigen PSISwitzerland Mateusz MalickiOffice: OHSA/C02+41 56 310 2127mateusz.malicki@psi.ch