Small modular reactor full scope core optimization using Cuckoo Optimization Algorithm

Akbari, Reza; Ochbelagh, Dariush Rezaei; Gharib, Ahmad; Maiorino, José Rubens; D'Auria, Francesco Saverio

doi:10.1016/j.pnucene.2020.103271

Cited by 22 publications

(2 citation statements)

References 27 publications

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“…As shown in Figure 1, the pervasive interest in SMRs could even be demonstrated by the thirty-fold growth of research and publications in this field over the past decade. Neutronic, thermal-hydraulic, safety, socioeconomic, and multi-purpose application analysis have been the main research areas of SMRs [12][13][14][15][16]. country is separate and legal.…”

Section: Introductionmentioning

confidence: 99%

Small Modular Reactors Licensing Process Based on BEPU Approach: Status and Perspective

et al. 2023

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The competitiveness of small modular reactors (SMRs) has been planned based on design simplification, short construction time, passive safety systems, and enabling self-financing by ramp-up construction. Due to the global energy challenges, SMRs have received pervasive attention from a wide range of researchers, designers, developers, stakeholders, and customers. Besides the many advantages related to the design of SMRs, there are challenges ahead of these reactors. SMR licensing is one of the most critical challenges in the front deployment of these reactors. This challenge stems from innovations in SMR designs and systems, such as modularity or deployment for desalination, energy storage, hydrogen production, process heat, and district heating. Due to the lack of experimental data and technical knowledge, the licensing challenges for non-water coolant SMRs are more complicated. Nearly all previous generation reactor licenses were based on conservative analysis while the decision-making methods based on best-estimate and realistic approaches have received more attention in recent years. Thus, the method known as the best estimate plus uncertainty (BEPU) approach is selected for licensing in some cases. At this time, using the BEPU approach in licensing for conventional NPPs is a mature technology and ready for industrial application. Nevertheless, because most previous reactors were licensed based on conservative methods, developers and even regulatory bodies resist re-assessments based on the BEPU approach, while using the choice of conventional conservative methods is a type of roll-back for next-generation SMRs. Thus, this work reviews the BEPU approach and clarifies the possibility of using this approach in the licensing process of SMRs. The lack of experimental data and tight coupling of phenomena along with uncertainty quantification are the main challenges ahead of using BEPU in the licensing process of SMRs.

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Section: Introductionmentioning

confidence: 99%

Small Modular Reactors Licensing Process Based on BEPU Approach: Status and Perspective

et al. 2023

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“…Small Modular Reactor (SMR) deployment, with its enhanced safety features and multi-purpose applications, proposes new opportunities in the nuclear industry and global energy systems and numerous researchers all over the world have been working on this concept [2,3]. Also, the new design of SMRs is proposed to operate in full NC condition.…”

Section: Introduction *mentioning

confidence: 99%

Investigation of the Natural Circulation FlowMap in NuScale Small Modular Reactor

Hosseini

Akbari

Shirani

et al. 2021

IJRRS

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Natural Circulation (NC) is an important mechanism in several industrial systems, and knowledge of its behavior is of interest to nuclear reactor design, operation and safety. The main safety issue in present nuclear reactors is to ensure the sufficient removal of decay heat during accidents. Recently, Small Modular Reactors (SMRs) have increasingly received a lot of positive attention and even several types of these reactors are in different stages of design and construction. Some of these SMRs, such as NuScale, are designed to operate in full NC mode as the main mechanism of the primary coolant drive force for heat removal from the reactor core during normal operation. The present study deals with the Natural Circulation Flow Map (NCFM) investigation in the NuScale reactor as one of the SMRs that operate in full NC mode. At first, NuScale reactor elements are modeled with RELAP5 thermal-hydraulic code. Then, after the verification of the steady-state modeling, the operational point of the NuScale reactor is indicated in NCFM that is based on the database of different PWR simulators (gathered from the experimental test facilities). The evaluation of Natural Circulation Performance (NCP) of this reactor has proved the good design of NCP during normal operation in comparing typical PWRs operations in high power cases.

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Optimization in nuclear systems

Koreshi

2022

Nuclear Engineering Mathematical Modeling and Simulation

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Small modular reactor full scope core optimization using Cuckoo Optimization Algorithm

Cited by 22 publications

References 27 publications

Small Modular Reactors Licensing Process Based on BEPU Approach: Status and Perspective

Small Modular Reactors Licensing Process Based on BEPU Approach: Status and Perspective

Investigation of the Natural Circulation FlowMap in NuScale Small Modular Reactor

Optimization in nuclear systems

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