NEA-1231 REFREP.

REFREP, Near-Field Model for Spent Fuel Repository

NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROGRAM OR FUNCTION, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, UNUSUAL FEATURES OF THE PROGRAM, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED, OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHORS, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: REFREP.

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2. COMPUTERS

To submit a request, click below on the link of the version you wish to order. Rules for end-users are available here.

Program name	Package id	Status	Status date
REFREP	NEA-1231/01	Tested	07-DEC-1989

Machines used:

Package ID	Orig. computer	Test computer
NEA-1231/01	DEC VAX series	DEC VAX 8810

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3. DESCRIPTION OF PROGRAM OR FUNCTION

A near field model for a spent fuel repository. The program calculates mass flows of corroding species and radionuclides (actinides) in the near field of a canister in a crystalline rock repository. Inventories and release rates are calculated as a function of time for a given initial inventory. Species are assumed to diffuse through the backfill and to be carried by the groundwater flowing in rock fissures around the disposal hole. Congruent as well as non-congruent release from the fuel matrix can be considered. Release rates from canisters can be summed up using different probability distributions for canister breaching times.
The program is interactive. Input values are also included in the input files. Semsitivity analysis on the breaching times of the canisters and on the radionuclide release rates can be performed for any input parameter.

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4. METHOD OF SOLUTION: Mathematical algorithms are presented in the references.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:

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6. TYPICAL RUNNING TIME

1...10 seconds of CPU-time.
NEA 1231/01: NEA-DB ran the tests included in this package in interactive mode on a DEC VAX 8810 computer.

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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-1231/01	07-DEC-1989	Tested at NEADB

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10. REFERENCES:

NEA-1231/01, included references:

- A. Hautojarvi and T. Vieno:
  REFREP - A Near-Field Model for a Spent Fuel Repository
  YJT-88-07 (May 1988).
- A. Hautojarvi:
  Simplified Modeling of Mass Transport in a Fissured Rock - Clay
  Buffer System
  Paper Presented in the Workshop on Artificial Clay Barriers for
  High Level Radioactive Waste Repositories, Lund, Sweden, October
  5-7, 1988.

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11. MACHINE REQUIREMENTS:

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NEA-1231/01	FORTRAN-77

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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED

Operating system is standard MicroVax II system with VMS 4.7. SLATEC-library was linked to calculate the error function erf(x). Erf(x) could be easily programmed as a subroutine (or function) using well known approximations.

NEA-1231/01

VMS version V5.-01 (VAX 8810).

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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

The DO- loops have to be rewritten in a standard form for an operating system or compiler that does not know the structure DO ... ENDDO. Otherwise the program should be ready to be compiled in another system than MicroVax II.

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15. NAME AND ESTABLISHMENT OF AUTHORS

          A. Hautojarvi and T. Vieno
          Technical Research Centre of Finland (VTT)
          Nuclear Engineering Laboratory
          P.O.B 169
          SF-00181 Helsinki, Finland
The program was developed on a commission to the Industrial Power
Company Ltd (TVO).

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16. MATERIAL AVAILABLE

NEA-1231/01

File name	File description	Records
NEA1231_01.001	Information file	197
NEA1231_01.002	REFREP main program	61
NEA1231_01.003	Subprogram CONGRUENT.FOR	182
NEA1231_01.004	Subprogram CORRFLUX.FOR	372
NEA1231_01.005	Subprogram DATAOUT.FOR	124
NEA1231_01.006	Subprogram ELEMENT.FOR	246
NEA1231_01.007	Subprogram ERF.FOR	1581
NEA1231_01.008	Subprogram INVENT.FOR	149
NEA1231_01.009	Subprogram MASSFLUX.FOR	185
NEA1231_01.010	Subprogram PROBDIS.FOR	159
NEA1231_01.011	Subprogram PROBREL.FOR	74
NEA1231_01.012	Subprogram SENSIT.FOR	604
NEA1231_01.013	Subprogram STEP.FOR	142
NEA1231_01.014	Subprogram UPDATE.FOR	108
NEA1231_01.015	Data files CAPSM.DAT	5
NEA1231_01.016	Data files CORRCONC.DAT	6
NEA1231_01.017	Data files CORRDIFF.DAT	7
NEA1231_01.018	Data files DIFFCOEF.DAT	5
NEA1231_01.019	Data files FILENAMES.DAT	6
NEA1231_01.020	Data files MASSFLUX.DAT	7
NEA1231_01.021	Data files SOLUB.DAT	8
NEA1231_01.022	Data files REFREP.TXT	23
NEA1231_01.023	Data files INVENT.INP	49
NEA1231_01.024	Data files RELEASE.DAT	1000
NEA1231_01.025	Data files PROBDIS.DAT	1001
NEA1231_01.026	Sample output files CURRFLUX.OUT	59
NEA1231_01.027	Sample output files MASSFLUX.OUT	24
NEA1231_01.028	Sample output files INVENT.OUT	45
NEA1231_01.029	Sample output files CONGRUENT.OUT	43
NEA1231_01.030	Sample output files SENSIT.OUT	57
NEA1231_01.031	Sample output files ELEMENT.OUT	43
NEA1231_01.032	Sample output files PROBREL.OUT	118
NEA1231_01.033	Sample output files INPDATA.OUT	62
NEA1231_01.034	Additional information	78