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SETH/PANDA, Three-dimensional gas flow distributions relevant to in-reactor containments under accidents conditions

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Program name Package id Status Status date
SETH/PANDA CSNI2002/01 Arrived 03-FEB-2009

Machines used:

Package ID Orig. computer Test computer
CSNI2002/01 Many Computers
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The NEA Committee for the Safety of Nuclear Installations (CSNI) has been promoting international initiatives and collaborations to establish convincing experimental safety programmes around specific facilities. As a first step in this direction, the PKL (Pressurised Water Reactor) loop in Germany and the PANDA in Switzerland were requested to develop proposals consistent with the priorities indicated in the CSNI Senior Group of Experts on Safety Research (SESAR) report Nuclear Safety Research in OECD Countries: Summary Report of Major Facilities and Programmes at Risk. Their proposals, after discussions with Member country experts, formed the basis for the SETH Project.


The SETH Project covers two aspects of accident management:

  • Part 1 is related to gas mixing and stratification issues in LWR containments under accidental conditions. The experiments have been performed in the PANDA facility at PSI, Switzerland.

  • Part 2 is related to two PWR safety issues: boron dilution during SB-LOCA and loss of residual heat removal during mid-loop operation. The experiments have been performed in the PKL facility at AREVA NP, Germany. (see also


The PSI/PANDA experiments provide data on containment three-dimensional gas flow and distribution issues that are important for code prediction capability improvements, accident management and design of mitigating measures. These experiments were conducted on a large scale in multi-compartment geometries in order to provide data suitable for the improvement and validation of safety analysis codes.


Project participants: Belgium, Czech Republic, Finland, France, Germany, Hungary, Italy, Japan, Republic of Korea, Spain, Sweden, Switzerland, Turkey, United Kingdom, United States.


Project period: April 2001-December 2006


The distribution of this package is restricted and subject to prior approval.


For more information see

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Package ID Status date Status
CSNI2002/01 03-FEB-2009 Masterfiled restricted
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CSNI2002/01, included references:
- F. de Cachard, D. Paladino, R. Zboray, M. Andreani, M. Huggenberger (Ed.):
OECD-SETH Project Large-scale Experimental Investigation of Gas Mixing and
Stratification in LWR Containments - FINAL REPORT
TM-42-07-04; ALPHA-07-18-0 (30.04.2007)
- O. Auban, D. Paladino and R. Zboray:
OECD/SETH PANDA Test Facility Description and Geometrical Data
TM-42-05-06; ALPHA-05-01-0 (21 January 2005)
- Quick Look Reports
- R. Zboray, D. Paladino, P. Benz, M. Fehlmann, H.J. Strassberger:
PANDA Free-Plume Tests - Test Report
TM-42-06-24; ALPHA-06-12-0 (10.07.2007)
- D. Paladino, R. Zboray, P. Benz, M. Fehlmann, H.J. Strassberger:
PANDA Horizontal-Jet Tests - Test Report
TM-42-07-01; ALPHA-07-16-0 (29.05.2007)
- D. Paladino, R. Zboray, P. Benz, M. Fehlmann, H.J. Strassberger:
PANDA Three-gas Mixture Test - Test Report
TM-42-07-02; ALPHA-07-17-0 (26.06.2007)
- F. de Cachard, O. Auban, D. Paladino and R. Zboray:
PANDA Wall-Plume Tests - Test Report (TM-42-06-03; ALPHA-06-01 (January 2006))
- SETH Seminar 2007
Fontenay-aux-Roses, France - 18-19 June 2007, Hosted by Institut de
Radioprotection et de Surete Nucleaire (IRSN)
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No specified programming language
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Paul Scherrer Institute
CH 5232 Villigen PSI

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-- SETH PANDA Experimental Data:
- SETH PANDA Free Plume Series Data: Tests 18-1, 18-2, 19-1, 20-1, 21-3, 21-2,
- SETH PANDA Horizontal Jet Series Data: Tests 1-1, 2-1, 4-1, 4bis-1, 5-1, 6-1,
7-1, 8-1
- SETH PANDA Three Gas Data: Test 25-1
- SETH PANDA Wall Plume Series Data: Tests 10-1, 11-1, 12-1, 13-1, 14-1, 16-1,
16-2, 17-1, 17-3, 17-4, 9-1, 9bis-1
-- SETH PANDA Reports:
PANDA Rationale
PANDA Matrix
SETH PANDA Facility Description Report
SETH PANDA Final Report
SETH PANDA Quick Look Report: Tests 1-1, 10-1, 11-1, 12-1, 13-1, 14-1, 16-1,
16-2, 17-1, 17-3, 17-4, 18-1, 18-2, 19-1, 2-1, 21-3, 21bis-2, 22-2, 25-1, 4-1,
4bis-1, 5-1, 6-1, 7-1, 8-1, 9-1, 9bis-1
SETH PANDA Series Reports:
Free Plume Series
Horizontal Jets Series
Three Gas Test
Wall Plume Series
Documents presented at the SETH Seminar 2007, 18-19 June 2007, IRSN France
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Keywords: accidents, containment, gas flow distribution, light-water reactors, three-dimensional.