Multistart Simulated Annealing applied to a Reduced Scale Thermo-Hydraulic Loop of a Pressurized Water Reactor core |
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| Affiliation: | 1. Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul – Campus Farroupilha, Avenida São Vicente, 785, 95180-000 Farroupilha, RS, Brazil;2. Universidade Federal Rural do Rio de Janeiro, Instituto Multidisciplinar, Avenida Governador Roberto Silveira, Nova Iguaçu, 23890-000 Rio de Janeiro, RJ, Brazil;3. Universidade Federal do Rio de Janeiro, COPPE-Nuclear, Ilha do Fundão s/n, P.O. Box 68509, 21941-972 Rio de Janeiro, RJ, Brazil;1. Korea Atomic Energy Research Institute, Daedeok-daero 989-111, Yuseong-gu, 305-353 Daejeon, South Korea;2. School of Mechanical Engineering, Pusan National University, Busan 46241 South Korea;3. School of Mechanical Engineering, Kyungpook National University, Daegu 41566 South Korea;1. Atomic Energy Commission of Syria (AECS), Nuclear Engineering Department, P.O. Box 6091, Damascus, Syrian Arab Republic;2. Nuclear Engineering Department, Av. Cmdt. Luis Piedrabuena 4950, C.P. 8400 S.C de Bariloche, Rio Negro, Argentina;3. Centro de Engenharia Nuclear – CEN, IPEN-CNEN/SP, Av. Lineu Prestes 2242-Cidade Universitaria, CEP-05508-000 São Paulo, SP, Brazil;4. School of Nuclear Engineering, Purdue University, West Lafayette, IN 47907, United States;5. Research Reactor Design & Engineering Division, Basic Science Project Operation Dept., Korea Atomic Energy Research Institute, Republic of Korea;6. Institute for Nuclear Research, Campului Street No. 1, P.O. Box 78, 115400 Mioveni, Arges, Romania;7. Division of Nuclear Installation Safety, Research Reactor Safety Section, International Atomic Energy Agency, A-1400 Vienna, Austria;1. Department of Applied Chemistry, China Agricultural University, Beijing 100193, China;2. Business School, University of Bedfordshire, Luton LU1 3JU, UK;1. Department of Civil and Environmental Engineering, Colorado State University, Fort Collins, CO 80523, USA;2. USDA-ARS, ASRU, 2150 Centre Avenue, Bldg. D, Fort Collins, CO 80526, USA;3. USDA-ARS, WMRU, 2150 Centre Avenue, Bldg. D, Fort Collins, CO 80526, USA |
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| Abstract: | In this paper we investigate the reduced scale design of a third generation Pressurized Water Reactor core, with single phase flow under natural circulation, based on the Loss-of-Fluid Test facility. Recent works approach this issue applying metaheuristics such as Genetic Algorithms and Particle Swarm Optimization. Both approaches have, as a drawback, the high computational time to obtain an acceptable solution. Here, we propose an alternative method when computational time is critical. We approach the problem applying a Multistart Simulated Annealing method in order to obtain an acceptable solution in a lower computational time. Our results indicate a 98.7% computational time improvement over the state-of-the-art Particle Swarm Optimization method. Moreover, the Multistart Simulated Annealing results are 1.36% better than state-of-the-art Particle Swarm Optimization method. Thus, Multistart SA shows promising results and is a suitable method when time is critical. |
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| Keywords: | Reduced Scale Thermo-Hydraulic Loop Similarity and scaling laws Reactor thermal-hydraulics Metaheuristics computational optimization Multistart Simulated Annealing |
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