Since 2021, IAEA has been organizing a Coordinated Research Project (CRP) on Testing and Simulations of Accident Tolerant and Advanced Technology Fuels (ATF-TS). A work task (WT2) is dedicated to benchmark the computer codes used for ATF behaviour simulation. The WT includes ATF specific modelling developments in fuel performance codes and simulation benchmark exercises using these codes to...
IAEA ATF-TS Benchmark FOR simulation of bundle tests
J. STUCKERT1, Z. HรZER2, A. KHAPERSKAIA3
1Karlsruhe Institute of Technology, Karlsruhe, Germany
2HUN-REN Centre for Energy Research (HUN-REN EK), Budapest, Hungary
3Nuclear Energy Department, IAEA, Vienna International Centre, Vienna, Austria
Corresponding author: J. STUCKERT, juri.stuckert@kit.edu
INTRODUCTION: As part of the...
Microcell CERMET (CERamic METal) is an ATF (Accident Tolerant and Advanced Technology Fuels) where granules of UO2 are enveloped in metallic channel resulting in a nuclear fuel characterized by enhanced thermal conductivity. This reduces the energy stored in the fuel thus increasing the grace period in case of an accident. Few experimental data are today available on this type of fuels....
Introduction
Since the Fukushima Daiichi nuclear accident, the vulnerability of current fuel designs under severe accident conditions has been widely recognized. As a result, alternative and advanced fuel designs that offer greater resistance to fuel failure and hydrogen production have been actively explored. In this context, at the request of Member States, the IAEA has organized several...
The behavior of fuel and thermal-hydraulics is strongly interdependent during transient conditions. In particular, during a Loss of Coolant Accident (LOCA), the cladding temperature and internal rod pressure increase significantly due to the loss of effective heat removal by the coolant. This can lead to severe cladding deformation. If the cladding undergoes large deformation or rupture, it...
The paper presents the work carried out within the framework of the OFFERR European User Facility Network, aimed at evaluating the mechanical behaviour of unirradiated Cr-coated and uncoated E110-like cladding under mandrel loading conditions. Experiments were conducted at 25 and 300ยฐC, and the cladding response was preliminary simulated using the TRANSURANUS fuel performance code. Two...
FINITE ELEMENT SIMULATION OF MANDREL TEST WITH ATF CLADDING
H. Yousefi1,2, R. Lo Frano1, M. Kirรกly2, Z. Hรณzer2, L. Tatรกr2, F. DโAuria1, D. Antok2, N. Forgione1
1 University of Pisa, Pisa, Italy
2 HUN-REN Centre for Energy Research, Atomic Energy Research Institute, Budapest, Hungary
Corresponding author: R. Lo Frano, rosa.lo.frano@unipi.it
INTRODUCTION: Accident Tolerant Fuel (ATF)...
