Wootton, M.J. orcid.org/0000-0001-6850-5978, Andrews, J.D. orcid.org/0000-0002-2316-3959, Smith, R. orcid.org/0000-0001-8147-431X et al. (4 more authors) (2024) An integrated Petri net-pseudo bond graph model for nuclear hazard assessment. Safety and Reliability, 43 (3). pp. 135-185. ISSN 0961-7353
Abstract
A pseudo-bond graph is presented to model the heat transferred from the fuel rods to the coolant via its cladding in a generic nuclear reactor case study. Simulations performed using this model are used to explore the temperatures of the core components under ordinary and emergency scenarios, considering various conditions of coolant supply and reactor power output. The model is combined with a timed stochastic Petri net to produce a hybrid model, in which the reactor operation and fault status is determined by the Petri net and fed into the bond graph to examine the resulting impact on core temperatures, which in turn are fed back into the Petri net process. The results predict the distribution of the reactor operational durations before a disruption occurs. The model provides the temperature profiles attained by the cladding and fuel components, indicating a low probability of dangerous temperatures.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2024 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The terms on which this article has been published allow the posting of the Accepted Manuscript in a repository by the author(s) or with their consent. |
Keywords: | Hybrid petri net-bond graph modelling; nuclear power plant safety; risk & reliability engineering |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > School of Chemical, Materials and Biological Engineering |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 31 Oct 2024 16:04 |
Last Modified: | 07 Mar 2025 15:38 |
Status: | Published |
Publisher: | Informa UK Limited |
Refereed: | Yes |
Identification Number: | 10.1080/09617353.2024.2363067 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:219072 |
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