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SBWR Model for Steady-State and Transient Analysis
Joint Authors
Espinosa-Paredes, Gilberto
Nuñez-Carrera, Alejandro
Source
Science and Technology of Nuclear Installations
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-18, 18 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-05-11
Country of Publication
Egypt
No. of Pages
18
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
This paper presents a model of a simplified boiling water reactor (SBWR) to analyze the steady-state and transient behavior.
The SBWR model is based on approximations of lumped and distributed parameters to consider neutronics and natural circulation processes.
The main components of the model are vessel dome, downcomer, lower plenum, core (channel and fuel), upper plenum, pressure, and level controls.
Further consideration of the model is the natural circulation path in the internal circuit of the reactor, which governs the safety performance of the SBWR.
To demonstrate the applicability of the model, the predictions were compared with plant data, manufacturer_s predictions, and RELAP5 under steady-state and transient conditions of a typical BWR.
In steady-state conditions, the profiles of the main variables of the SBWR core such as superficial velocity, void fraction, temperatures, and convective heat transfer coefficient are presented and analyzed.
The transient behavior of SBWR was analyzed during the closure of all main steam line isolation valves (MSIVs).
Our results in this transient show that the cooling system due to natural circulation in the SBWR is around 70% of the rated core flow.
According to the results shown here, one of the main conclusions of this work is that the simplified model could be very helpful in the licensing process.
American Psychological Association (APA)
Espinosa-Paredes, Gilberto& Nuñez-Carrera, Alejandro. 2008. SBWR Model for Steady-State and Transient Analysis. Science and Technology of Nuclear Installations،Vol. 2008, no. 2008, pp.1-18.
https://search.emarefa.net/detail/BIM-471447
Modern Language Association (MLA)
Espinosa-Paredes, Gilberto& Nuñez-Carrera, Alejandro. SBWR Model for Steady-State and Transient Analysis. Science and Technology of Nuclear Installations No. 2008 (2008), pp.1-18.
https://search.emarefa.net/detail/BIM-471447
American Medical Association (AMA)
Espinosa-Paredes, Gilberto& Nuñez-Carrera, Alejandro. SBWR Model for Steady-State and Transient Analysis. Science and Technology of Nuclear Installations. 2008. Vol. 2008, no. 2008, pp.1-18.
https://search.emarefa.net/detail/BIM-471447
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-471447