Advances in nuclear power system design and fault-based condition monitoring towards safety of nuclear-powered ships

Adumene, Sidum; Islam, Rabiul; Amin, Md. Tanjin; Nitonye, Samson; Yazdi, Mohammad; Johnson, Kombo Theophilus

doi:10.1016/j.oceaneng.2022.111156

Cited by 29 publications

(12 citation statements)

References 45 publications

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“…Transitioning to the use of alternative fuels and energy for ship propulsion has become a true necessity for shipping companies, especially since the International Maritime Organization (IMO) have adopted an initial strategy for reducing greenhouse gas (GHG) emissions from ships [ 20 , 21 ]. The increasing need for cleaner fuels and energy in ship propulsion has stimulated “rising technological advancements in ship nuclear power machinery (SNPM) design” [ 22 ]. Many countries have already carried out research and development programs pertaining to nuclear-powered merchant ships; these countries include the United Kingdom, the United States, Russia, China, Japan, South Korea, and Norway [ 3 , 17 , 18 , 23 , 24 ].…”

Section: Literature Review Materials and Analytical Frameworkmentioning

confidence: 99%

“…Technically, experiments have shown that using nuclear propulsion for merchant ships is feasible [ 3 ]. The literature has shown that tremendous technological progress has been made in the design and manufacture of marine nuclear reactors, which makes nuclear energy for merchant ship propulsion and power generation feasible and promising [ 22 ]. Nuclear energy provides alternative fuel and energy sources for the maritime transport industry, which must urgently reduce its carbon emissions [ 26 ].…”

Section: Literature Review Materials and Analytical Frameworkmentioning

confidence: 99%

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Using Nuclear Energy for Maritime Decarbonization and Related Environmental Challenges: Existing Regulatory Shortcomings and Improvements

Wang

Zhu

2023

IJERPH

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In recent years, the use of nuclear energy as propulsion for merchant ships has been proposed as a means of promoting the transition toward maritime decarbonization and environmentally sustainable shipping. However, there are concerns that nuclear-powered merchant ships could pose risks to the marine environment in the event of accidents, such as collisions, machinery failure or damage, fire, or explosions. The current international regulatory framework for nuclear-powered merchant ships is insufficient to address these risks. This research aims to address this gap by conducting a policy analysis of the existing regulations and a critical examination of their effectiveness in addressing the environmental risks of nuclear-powered merchant ships. Through this analysis, the study identifies the shortcomings and insufficiencies in the current framework and explores potential solutions to improve it, with the goal of enhancing the international community’s ability to mitigate the potential impacts of radioactive marine pollution from nuclear-propelled ships in an era of maritime decarbonization.

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Section: Literature Review Materials and Analytical Frameworkmentioning

confidence: 99%

Section: Literature Review Materials and Analytical Frameworkmentioning

confidence: 99%

Using Nuclear Energy for Maritime Decarbonization and Related Environmental Challenges: Existing Regulatory Shortcomings and Improvements

Wang

Zhu

2023

IJERPH

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“…Reliability analysis of the system or component is the probability that the understudy system/component can continue performing its functionalities over time, considering identified operational conditions. [1][2][3][4][5] One of the main ideas behind reliability analysis is to determine and measure system failures. This can be carried out by providing a series of intervention actions (e.g., preventive, control, and mitigative) to reduce the failure probability and corresponding risk level to an acceptable level or ALARP ("As low as reasonably practicable").…”

Section: Introductionmentioning

confidence: 99%

“…Increasing the complexity of engineered systems, products, and services calls for obtaining an accurate and precise reliability function as much as possible. Reliability analysis of the system or component is the probability that the understudy system/component can continue performing its functionalities over time, considering identified operational conditions 1–5 . One of the main ideas behind reliability analysis is to determine and measure system failures.…”

Section: Introductionmentioning

confidence: 99%

Fault tree analysis improvements: A bibliometric analysis and literature review

Yazdi

Mohammadpour

et al. 2023

Quality & Reliability Eng

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Fault tree analysis (FTA) is one of the most popular failure analysis techniques that reveal the potential pathways leading to systems or components failure. It has been widely employed in numerous sectors to understand how a system fails and is improved. However, the conventional FTA has been criticized due to a series of inherent shortcomings in the FTA state of the arts. Accordingly, scholars, engineers, and practitioners made their attempts to improve the FTA by dealing with its critical deficiencies over the last decade. However, a few works have been performed to review and synthesize the relevant studies on FTA improvement topics. Thus, the present study is aimed to carry out a systematic literature review of the state-of-the-art theoretical and empirical findings concerning FTA improvement from 2011 to 2021 using the Scopus database collection. In this sense, an in-depth investigation is conducted using statistical metadata analysis. This subject discusses frontier directions and development trends to reveal the research status. In addition, a bibliometric study is undertaken to ascertain the most productive and influential researchers, research centers, and hotspot fields. It also sheds light on the FTA shortcomings in the existing literature, the evolution in FTA improvement topics, and research opportunities. The outcomes of the present work highlighted thatThis is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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“…The abnormal core temperature distribution could lead to serious accidents such as core meltdowns, causing serious casualties and economic losses. Therefore, it is important to perform accurate and reliable anomaly detection for reactor core temperature [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Feature Disentangling Autoencoder for Anomaly Detection of Reactor Core Temperature with Feature Increment Strategy

Mao

et al. 2023

Processes

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Anomaly detection for core temperature has great significance in maintaining the safety of nuclear power plants. However, traditional auto-encoder-based anomaly detection methods might extract the latent space features with redundancy, which may lead to missing and false alarms. To address this problem, the idea of feature disentangling is introduced under the auto-encoder framework in this paper. First, a feature disentangling auto-encoder (DAE) is proposed where a latent space disentangling loss is designed to disentangle the features. We further propose an incrementally feature disentangling auto-encoder (IDAE), which is the improved version of DAE. In the IDAE model, an incremental feature generation strategy is developed, which enables the model to evaluate the disentangling degree to adaptively determine the feature dimension. Furthermore, an iterative training framework is designed, which focuses on the parameter training of the newly incremented feature, overcoming the difficulty of model training. Finally, we illustrate the effectiveness and superiority of the proposed method on a real nuclear reactor core temperature dataset. IDAE achieves average false alarm rates of 4.745% and 6.315%, respectively, using two monitoring statistics, and achieves average missing alarm rates of 6.4% and 2.9%, respectively, using two monitoring statistics, outperforming the other methods.

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Advances in nuclear power system design and fault-based condition monitoring towards safety of nuclear-powered ships

Cited by 29 publications

References 45 publications

Using Nuclear Energy for Maritime Decarbonization and Related Environmental Challenges: Existing Regulatory Shortcomings and Improvements

Using Nuclear Energy for Maritime Decarbonization and Related Environmental Challenges: Existing Regulatory Shortcomings and Improvements

Fault tree analysis improvements: A bibliometric analysis and literature review

Feature Disentangling Autoencoder for Anomaly Detection of Reactor Core Temperature with Feature Increment Strategy

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