Development of a Secondary SCRAM System for Fast Reactors and ADS Systems
Joint Authors
Van den Eynde, Gert
Tijskens, Engelbert
Bartosiewicz, Yann
Vanmaercke, Simon
Source
Science and Technology of Nuclear Installations
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-04-29
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
One important safety aspect of any reactor is the ability to shutdown the reactor.
A shutdown in an ADS can be done by stopping the accelerator or by lowering the multiplication factor of the reactor and thus by inserting negative reactivity.
In current designs of liquid-metal-cooled GEN IV and ADS reactors reactivity insertion is based on absorber rods.
Although these rod-based systems are duplicated to provide redundancy, they all have a common failure mode as a consequence of their identical operating mechanism, possible causes being a largely deformed core or blockage of the rod guidance channel.
In this paper an overview of existing solutions for a complementary shut down system is given and a new concept is proposed.
A tube is divided into two sections by means of aluminum seal.
In the upper region, above the active core, spherical neutron-absorbing boron carbide particles are placed.
In case of overpower and loss of coolant transients, the seal will melt.
The absorber balls are then no longer supported and fall down into the active core region inserting a large negative reactivity.
This system, which is not rod based, is under investigation, and its feasibility is verified both by experiments and simulations.
American Psychological Association (APA)
Vanmaercke, Simon& Van den Eynde, Gert& Tijskens, Engelbert& Bartosiewicz, Yann. 2012. Development of a Secondary SCRAM System for Fast Reactors and ADS Systems. Science and Technology of Nuclear Installations،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-465086
Modern Language Association (MLA)
Vanmaercke, Simon…[et al.]. Development of a Secondary SCRAM System for Fast Reactors and ADS Systems. Science and Technology of Nuclear Installations No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-465086
American Medical Association (AMA)
Vanmaercke, Simon& Van den Eynde, Gert& Tijskens, Engelbert& Bartosiewicz, Yann. Development of a Secondary SCRAM System for Fast Reactors and ADS Systems. Science and Technology of Nuclear Installations. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-465086
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-465086