Optimization of IEA-R1 reactor core parameters using the particle swarm algorithm
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Nuclear Engineering and Design
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This work aims on the development of a FORTRAN 90 code to solve the Loading Pattern Optimization Problem
(LPOP) in the IEA-R1 research reactor at the Nuclear and Energy Research Institute (IPEN/CNEN-SP) in S˜ao
Paulo, Brazil. The code integrates the Particle Swarm Optimization (PSO) method, with the current reactor
calculation methodology. The objective function seeks to maximize the effective multiplication factor (keff),
minimize the peak power factor (PPF), and achieve the most uniform neutron flux distribution possible. A
comparison with the parameters of the reactor’s current configuration, and the code successfully finds solutions
meeting the standard problem requirements. The new configuration enhances peak power (6.93%) and variance
(9.62%), slightly increases neutron flux (0.48%), and marginally reduces in keff (0.45%). Additionally, it lowers
the maximum fuel cladding temperature (0.7%), contributing to reactor safety.
Como referenciar
SANTOS, THIAGO A. dos; GENEZINI, FREDERICO A.; STEFANI, GIOVANNI L. de. Optimization of IEA-R1 reactor core parameters using the particle swarm algorithm. Nuclear Engineering and Design, v. 415, p. 1-9, 2023. DOI: 10.1016/j.nucengdes.2023.112713. Disponível em: http://repositorio.ipen.br/handle/123456789/34374. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.