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NEA-1401 ZZ-BUC-1/BENCHMARK.

ZZ BUC-1/BENCHMARK, NEACRP Benchmark Specifications for Burnup Criticality Calculation

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1. NAME OR DESIGNATION OF PROGRAM:  ZZ-BUC-1/BENCHMARK.
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2. COMPUTERS
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Program name Package id Status Status date
ZZ-BUC-1/BENCHMARK NEA-1401/01 Tested 27-FEB-1992
ZZ-BUC-1B/BENCHMARK NEA-1401/02 Tested 13-JAN-1993
ZZ-BUC-2A/BENCHMARK NEA-1401/04 Tested 25-NOV-1993
ZZ-BUC-3A/BENCHMARK NEA-1401/05 Tested 05-FEB-1996

Machines used:

Package ID Orig. computer Test computer
NEA-1401/01 Many Computers Many Computers
NEA-1401/02 Many Computers
NEA-1401/04 Many Computers DEC VAX 6000
NEA-1401/05 Many Computers Many Computers
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3. DESCRIPTION OF PROGRAM OR FUNCTION

The NEACRP benchmark specification for Burnup Credit Criticality Calculations aims at verifying whether simple models can be used to evaluate the criticality safety margin for spent fuel systems.
Phases I and I-A concern a simple PWR spent fuel cell and aims at a  preliminary survey of burnup credit where burnup, cooling time and fission products are taken as parameters.
Phase I-B aims at predicting the isotopic composition of the spent fuel and compare it against chemical assay data and results from different computer codes.
Phase II-A investigates the effect of an axial burnup profile as compared to a flat on (for in infinite fuel pin array).
Phase III-A investigates the burnup credit effect in a BWR. The assumption is irradiated to achieve a batch average exposure of 40 MWd/kg under a moderator void fraction of 70%. Distributions ar considered uniform.
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4. METHOD OF SOLUTION:
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:
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6. TYPICAL RUNNING TIME:
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7. UNUSUAL FEATURES OF THE PROGRAM:
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8. RELATED AND AUXILIARY PROGRAMS:
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9. STATUS
Package ID Status date Status
NEA-1401/01 27-FEB-1992 Screened
NEA-1401/02 13-JAN-1993 Screened
NEA-1401/04 25-NOV-1993 Screened
NEA-1401/05 05-FEB-1996 Screened
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10. REFERENCES:
NEA-1401/01, included references:
- M. Takano:
  OECD/NEA Burnup Credit Criticality Benchmark - Result of Phase-1A
  NEA/NSC/DOC(93)22, JAERI-M 94-003 (January, 1994)
NEA-1401/02, included references:
- M.D. DeHart, M.C. Brady and C.V. Parks
OECD/NEA Burnup Credit Calculational Criticality Benchmark Phase 1-B Results
NEA/NSC/DOC(96)-06, ORNL-6901 (June 1996)
NEA-1401/04, included references:
- M. Takano and H. Okuno:
  OECD/NEA Burnup Credit Criticality Benchmark - Result of Phase-IIA
  NEA/NSC/DOC(96)01, JAERI-Research 96-003 (February 1996)
NEA-1401/05, included references:
- Y. Naito, H. Okuno and Y. Ando:
  Problem Specification for Burnup Credit Benchmark Phase IIIA:
  Criticality Calculations of BWR Spent Fuel in Storage and
  Transportation
  NEA/NSC/DOC(96)-4 (December 1995)
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11. MACHINE REQUIREMENTS:
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12. PROGRAMMING LANGUAGE(S) USED

No item found

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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:
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15. NAME AND ESTABLISHMENT OF AUTHORS

Y. Naito, Makoto Takano, H. Okuno
Fuel Safety Division
Japan Atomic Research Institute
Tokai-mura, Naka-gun
IBARAKI-KEN 319-11
Japan

Michaele C. Brady
Sandia National Laboratory
Division 6643
P.O. Box 5800
ALBUQUERQUE, NM 87185, U.S.A.

Alain Santamarina
C.E.N. Cadarache, Bat. 20
F-13108 St. Paul-lez-Durance Cedex
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16. MATERIAL AVAILABLE
NEA-1401/01
File name File description Records
NEA1401_01.001 Information File 34
NEA1401_01.002 Burnup Credit Criticality Benchmark: Part 1. 310
NEA-1401/02
File name File description Records
NEA1401_02.001 Information File 38
NEA1401_02.002 Burnup Credit Isotope Prediction Phase I-B . 224
NEA-1401/04
File name File description Records
NEA1401_04.001 This information file 35
NEA1401_04.002 Atomic Densities for Phase IIA BUC Benchmark 830
NEA-1401/05
File name File description Records
NEA1401_05.001 This Information File 39
NEA1401_05.002 Atomic Densities for Phase IIIA BUC Benchm. 690
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17. CATEGORIES
  • Y. Integral Experiments Data, Databases, Benchmarks

Keywords: burnup, criticality, fuel management, nuclear fuels, reactor safety.