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Title: Innovative power conversion system for the French SFR prototype, ASTRID

Abstract

In the framework of the French Act of 28 June 2006 about nuclear materials and waste management, the prototype ASTRID (Advanced Sodium Technological Reactor for Industrial Demonstration), foreseen in operation by the 20's, will have to demonstrate not only the minor actinide transmutation capability, but also the progress made in Sodium Fast Reactor (SFR) technology on an industrial scale, by qualifying innovative options. Some of these options still require improvements, especially in the field of operability and safety. In fact, one of the main issues with the standard steam/water Power Conversion System (PCS) of SFR is the fast and energetic chemical reaction between water and sodium, which could occur in steam generators in case of tube failure. To manage the sodium/water reaction, one way consists in minimizing the impact of such event: hence studies are carried out on steam generator design, improvement of the physical knowledge of this phenomenon, development of numerical simulation to predict the reaction onset and consequences, and associated detection improvement. On the other hand, the other way consists in eliminating sodium/water reaction. In this frame, the CEA contribution to the feasibility evaluation of an alternative innovative PCS (replacing steam/water by 180 bar pressurised nitrogen) is focusedmore » on the following main topics: - The parametric study leading to nitrogen selection: the thermodynamic cycle efficiency optimisation on Brayton cycles is performed with several gases at different pressures. - The design of innovative compact heat exchangers for the gas loop: here the key points are the nuclear codification associated with inspection capability, the innovative welding process and the thermal-hydraulic and thermal-mechanic optimisations. After a general introduction of the ASTRID project, this paper presents in detail these different feasibility studies being led on the innovative gas PCS for an SFR. (authors)« less

Authors:
; ; ; ; ; ; ; ; ;  [1]
  1. CEA French Commission for Atomic Energy and Alternative Energy, F- 13 108 Saint Paul Lez Durance (France)
Publication Date:
Research Org.:
American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
OSTI Identifier:
22105979
Resource Type:
Conference
Resource Relation:
Conference: ICAPP '12: 2012 International Congress on Advances in Nuclear Power Plants, Chicago, IL (United States), 24-28 Jun 2012; Other Information: Country of input: France; 5 refs.; Related Information: In: Proceedings of the 2012 International Congress on Advances in Nuclear Power Plants - ICAPP '12| 2799 p.
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; 42 ENGINEERING; BRAYTON CYCLE; CEA; COMPUTERIZED SIMULATION; FAILURES; FAST REACTORS; FEASIBILITY STUDIES; GASES; HEAT EXCHANGERS; MOLTEN METAL-WATER REACTIONS; NITROGEN; OPTIMIZATION; PARAMETRIC ANALYSIS; REACTOR SAFETY; SODIUM COOLED REACTORS; STEAM; STEAM GENERATORS; THERMAL HYDRAULICS; THERMODYNAMIC PROPERTIES; WASTE MANAGEMENT; WATER; WELDING

Citation Formats

Cachon, L., Biscarrat, C., Morin, F., Haubensack, D., Rigal, E., Moro, I., Baque, F., Madeleine, S., Rodriguez, G., and Laffont, G. Innovative power conversion system for the French SFR prototype, ASTRID. United States: N. p., 2012. Web.
Cachon, L., Biscarrat, C., Morin, F., Haubensack, D., Rigal, E., Moro, I., Baque, F., Madeleine, S., Rodriguez, G., & Laffont, G. Innovative power conversion system for the French SFR prototype, ASTRID. United States.
Cachon, L., Biscarrat, C., Morin, F., Haubensack, D., Rigal, E., Moro, I., Baque, F., Madeleine, S., Rodriguez, G., and Laffont, G. Sun . "Innovative power conversion system for the French SFR prototype, ASTRID". United States.
@article{osti_22105979,
title = {Innovative power conversion system for the French SFR prototype, ASTRID},
author = {Cachon, L. and Biscarrat, C. and Morin, F. and Haubensack, D. and Rigal, E. and Moro, I. and Baque, F. and Madeleine, S. and Rodriguez, G. and Laffont, G.},
abstractNote = {In the framework of the French Act of 28 June 2006 about nuclear materials and waste management, the prototype ASTRID (Advanced Sodium Technological Reactor for Industrial Demonstration), foreseen in operation by the 20's, will have to demonstrate not only the minor actinide transmutation capability, but also the progress made in Sodium Fast Reactor (SFR) technology on an industrial scale, by qualifying innovative options. Some of these options still require improvements, especially in the field of operability and safety. In fact, one of the main issues with the standard steam/water Power Conversion System (PCS) of SFR is the fast and energetic chemical reaction between water and sodium, which could occur in steam generators in case of tube failure. To manage the sodium/water reaction, one way consists in minimizing the impact of such event: hence studies are carried out on steam generator design, improvement of the physical knowledge of this phenomenon, development of numerical simulation to predict the reaction onset and consequences, and associated detection improvement. On the other hand, the other way consists in eliminating sodium/water reaction. In this frame, the CEA contribution to the feasibility evaluation of an alternative innovative PCS (replacing steam/water by 180 bar pressurised nitrogen) is focused on the following main topics: - The parametric study leading to nitrogen selection: the thermodynamic cycle efficiency optimisation on Brayton cycles is performed with several gases at different pressures. - The design of innovative compact heat exchangers for the gas loop: here the key points are the nuclear codification associated with inspection capability, the innovative welding process and the thermal-hydraulic and thermal-mechanic optimisations. After a general introduction of the ASTRID project, this paper presents in detail these different feasibility studies being led on the innovative gas PCS for an SFR. (authors)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {7}
}

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