Experimental and numerical investigations on the ESBWR stability performance

Rohde M, Marcel CP, Manera A, van der Hagen THJJ & Shiralkar B
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Rohde, M., Marcel, C. P., Manera, A., van der Hagen, T. H. J. J., & Shiralkar, B. (2007). Experimental and numerical investigations on the ESBWR stability performance. In 12th international topical meeting on nuclear reactor thermal hydraulics (NURETH-12) (p. 099 (20 pp.). American Nuclear Society.
https://www.dora.lib4ri.ch/psi/islandora/object/psi:62198

In this work, the stability of the Economic Simplified Boiling Water Reactor (ESBWR) has been studied by using a Freon-134a based experimental facility (GENESIS) and two system codes, being ATHLET 2.0a and (to a lesser extent) TRACG. During setting up the GENESIS facility and the numerical calculations, a great effort has been made to approximate the ESBWR system as accurate as possible.
In general, it was found that a sufficient margin to instability exists regarding the ESBWR's nominal point. In addition, a comparison was made between the numerical and experimental results for both the thermal-hydraulic system and the reactor system. Deviations were found between the numerical and experimental results, in spite of the close similarity between the GENESIS facility and the definition of the ESBWR system in the system code. This result shows that predictions regarding real nuclear reactors, based on modeled systems, should be taken with care.

Details
Publication Type

Proceedings Paper

Title

Experimental and numerical investigations on the ESBWR stability performance

Author(s)

Rohde, M.

Marcel, C.P.

Manera, A. (4104 System Behaviour)

van der Hagen, T.H.J.J.

Shiralkar, B.

Conference Proceedings

12th international topical meeting on nuclear reactor thermal hydraulics (NURETH-12)

Editor(s)

(editor)

Publisher

American Nuclear Society

Publication Place

Westmont

Start Page

099 (20 pp.)

Publication Year

2007

Conference

12th international topical meeting on nuclear reactor thermal hydraulics (NURETH-12)

Conference Place

Pittsburgh

Conference Date

September 30 - October 4, 2007

Keywords

natural circulation BWR
stability
scaling
experiments
system codes

Collection

PSI Publications