Integral Experiments Data, Databases, Benchmarks and Safety Joint Projects
CSNI2044 ATLAS-2 PROJECT.
last modified: 01-FEB-2023 | catalog | new | search |

CSNI2044 ATLAS-2 PROJECT.

ATLAS-2 PROJECT, 2nd Phase of The Advanced Thermal-hydraulic Test Loop for Accident Simulation Project

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1. NAME

OECD/ATLAS-2 Project

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2. COMPUTERS

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Program name Package id Status Status date
ATLAS-2 PROJECT CSNI2044/01 Arrived 01-FEB-2023

Machines used:

Package ID Orig. computer Test computer
CSNI2044/01 Many Computers
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3. DESCRIPTION

ATLAS-2 was a follow-up to phase one and was focused on topics of high safety relevance for both existing and future nuclear power plants that had been identified by the participants. The following topics were addressed:

  • long-term coolability with partial core blockage

  • passive core makeup during station blackout (SBO) and small break loss of coolant accident (SBLOCA)

  • intermediate break loss of coolant accident (IBLOCA), including risk-informed break size definition

  • design extension condition (DEC) scenarios such as steam line break (SLB) followed by steam generator tube rupture (SGTR) and shutdown coolability without residual heat removal system (RHRS)

  • open test to address scaling issues by performing counterpart test to previous Integral Effects Tests (IETs).

 

The experimental programme was designed to provide an integral-effect experimental database to support the enhancement of code predictive capability and accuracy of models. In phase 2, a total of 8 tests were performed. Analytical activities were pursued including the oganisation of a joint workshop with the OECD/NEA PKL4 project which outcomes are provided here.

 

The summary report of phase 2 is available here.

 

Participating countries: Belgium, China, Czech Republic, France, Germany, Korea, Spain, Switzerland, United Arab Emirates and the United States.

 

Project period: October 2017 - September 2020

 

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

 

For more detailed information visit the ATLAS Project.

 

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9. STATUS
Package ID Status date Status
CSNI2044/01 01-FEB-2023 Masterfiled restricted
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10. REFERENCES
CSNI2044/01, included references:
- Final Integration Report of OECD-ATLAS2 Project (November 2020)
Innovative System Safety Research Division, KAERI
- Report on the OECD-ATLAS2 B1.1 Test: 2 inches Cold Leg Break SBLOCA with an
Operation of PAFS and Total Failure of SIP
- Report on the OECD-ATLAS2 B2.1 Test: Simulaton of a Prolonged Station
Blackout (SBO) Transient with Hybrid-SITs of ATLAS
- Report on the OECD-ATLAS2 B2.2 Test: Simulaton of a 2 inch Cold Leg SBLOCA
with Passive Emergency Core Cooling System
- Report on the OECD-ATLAS2 B3.1 Test: Pressurizer Surgeline Intermediate Break
Loss-of-Coolant-Accident (IBLOCA) Test with ATLAS
- Report on the OECD-ATLAS2 B3.2 Test: Direct Vessel Injection (DVI) Line
Intermediate Break Loss-of-Coolant-Accident (IBLOCA) Test with ATLAS
- Report on the OECD-ATLAS2 B4.1 Test: Steam line break (SLB) accompanied by
the Steam Generator Tube Rupture (SGTR)
- Report on the OECD-ATLAS2 B4.2 Test: Loss of Residual Heat Removal System
during a Mid-loop Operation Test in ATLAS
- Report on the OECD-ATLAS2 B5.1 Test: Counterpart Test for 1% SBLOCA at
Reactor Pressure Vessel Top of LSTF with Accident Management Actions and Gas
Inflow
- Summary Report of the NEA ATLAS-2 Joint Project (NEA/CSNI/R(2021)6)
- Scaling Analysis Report Report of the ATLAS Facility (KAERI/TR-5465/2014)
- Report on the Natural Circulation Characteristics Test of ATLAS
(KAERI/TR-7183/2018)
- Description report of ATLAS facility and instrumentation (Second revision)
(KAERI/TR-7218/2018)
- Description report of ATLAS facility and instrumentation (Third revision)
(KAERI/TR-8106/2020)
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12. PROGRAMMING LANGUAGE(S) USED
No specified programming language
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15. NAME AND ESTABLISHMENT OF AUTHORS

Korea Atomic Energy Research Institute

111 Daedeok-daero 989 beon-gil, Deogjin-dong, Yuseong-gu,

Daejeon

Korea

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16. MATERIAL AVAILABLE
CSNI2044/01
TEST DATA:
B1: Small break loss of coolant accident (SBLOCA) with total failure of safety
injection pump (SIP) under passive auxiliary feedwater system (PAFS) operation
(1 test)
B2: Performance of passive core makeup during station blackout (SBO) and
SBLOCA (2 tests)
B3: Intermediate break LOCA (IBLOCA) of pressurizer surgeline and direct vessel
injection (DVI) line break (2 tests)
B4: Design extension conditions (DECs) of steam line break (SLB) accompanied by
steam generator tube rupture (SGTR) and shutdown coolability without residual
heat removal system (RHRS) (2 tests)
B5: Counterpart test for SBLOCA of 1% reactor pressure vessel (RPV) top break
(1 test)
NC: Natural circulation test for ATLAS facility
REPORTS:
Quick Look Reports, Test Reports, Final Integration Report
Executive Summary Report of the OECD-ATLAS2 Joint Project
Scaling Analysis Report Report of the ATLAS Facility
Report on the Natural Circulation Characteristics Test of ATLAS
Description report of ATLAS facility and instrumentation (Second revision)
Description report of ATLAS facility and instrumentation (Third revision)
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17. CATEGORIES
  • Y. Integral Experiments Data, Databases, Benchmarks

Keywords: accident analysis, loop, simulation, thermal hydraulics.