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The UPM group acknowledges the technical and financial support granted by the CSN in the SPAR-CSN Project.

Analysis of institutional authors

Courtin Vega, Sergio EduardoAuthorCourtin, SergioAuthorQueral, CesarCorresponding AuthorGarcia-Herranz, AlbertoAuthor

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August 18, 2024
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DEC-A identification and impact of post-Fukushima improvements on risk reduction

Publicated to:Nuclear Engineering And Design. 428 113476-113476 - 2024-11-01 428(), DOI: 10.1016/j.nucengdes.2024.113476

Authors: Courtin, S; Queral, C; García-Herranz, A; Sánchez-Perea, M; Meléndez, E

Affiliations

Consejo Seguridad Nucl CSN, Pedro Justo Dorado Dellmans St 11, Madrid 28040, Spain - Author
Univ Politecn Madrid UPM, Alenza St 4, Madrid 28003, Spain - Author

Abstract

After the Fukushima accident, nuclear power plants (NPPs) were required to demonstrate their reliability by increasing their safety provisions and equipment to mitigate accidents. These requirements must cover equipment, procedure improvements, and regulatory development. One of the most important actions has been the introduction of the analysis of the Design Extension Conditions (Multiple Failure Conditions outside the design basis envelope, DEC) into the design requirements of NPPs to further improve safety. On this subject, in the framework of the SPAR-CSN project to create a Standardized Plant Analysis Risk (SPAR) model for Spanish NPPs, a novel methodology has been developed to identify sequences that are outside the design basis but not reaching fuel damage, DEC-A, making use of the probabilistic safety assessment level 1 model for a generic plant, 3-loop pressurized water reactor Westinghouse design. Using this method, we have been able to identify the DEC-A sequences with high relative risk by comparing their frequencies with their corresponding DEC-B sequences (with fuel damage). As shown in this study, the addition of post-Fukushima improvements highly reduces the relative risk of the DEC sequences.

Keywords

Design extension conditionsFlex strategiesPsPsa

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Nuclear Engineering And Design due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2024 there are still no calculated indicators, but in 2023, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Nuclear Energy and Engineering.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-08-02:

  • WoS: 1

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-08-02:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 5 (PlumX).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/84603/

As a result of the publication of the work in the institutional repository, statistical usage data has been obtained that reflects its impact. In terms of dissemination, we can state that, as of

  • Views: 68
  • Downloads: 19

Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Courtin Vega, Sergio) .

the author responsible for correspondence tasks has been QUERAL SALAZAR, JOSE CESAR.