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NEA-0174 ARLEKIN.

ARLEKIN, General Point Reactor Kinetics by Lie-Series Method

NAME OR DESIGNATION OF PROGRAM, COMPUTER, NATURE OF PHYSICAL PROBLEM SOLVED, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, FEATURES, AUXILIARIES, STATUS, REFERENCES, REQUIREMENTS, LANGUAGE, OPERATING SYSTEM, OTHER RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES
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1. NAME OR DESIGNATION OF PROGRAM:  ARLEKIN.
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2. COMPUTERS
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Program name Package id Status Status date
ARLEKIN NEA-0174/01 Tested 01-JUL-1967

Machines used:

Package ID Orig. computer Test computer
NEA-0174/01 IBM 7090 IBM 7090
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3. NATURE OF PHYSICAL PROBLEM SOLVED

It solves reactor kinetic equations. Equations of variables defining feedback may be non- linear. The external reactivity may be expressed in terms of a linear combination of time-dependent functions such as step- functions, ramps, sine-functions or exponentials. Cooling coefficients are allowed to vary discontinuously in time in order to simulate pump accidents.
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4. METHOD OF SOLUTION

The differential equations are integrated using the Lie-series method.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

The maximum number of differential equations that can be solved simultaneously is 30.
20 groups of delayed neutrons.
8 feedback equations.
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6. TYPICAL RUNNING TIME:  1 - 5 min. depending on the case.
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7. UNUSUAL FEATURES: UNUSUAL FEATURES OF THE PROGRAM
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8. RELATED OR AUXILIARY PROGRAMS: RELATED AND AUXILIARY PROGRAMS
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9. STATUS
Package ID Status date Status
NEA-0174/01 01-JUL-1967 Tested at NEADB
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10. REFERENCES
NEA-0174/01, included references:
- J.C. Mayor, J. Menning, G. Sarlos:
  A Generalised Reactor Kinetics Code Using Lie-Series
  EIR-Bericht no. 111 (1967).
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11. HARDWARE REQUIREMENTS: MACHINE REQUIREMENTS
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-0174/01 FORTRAN-II (IBM)
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13. SOFTWARE REQUIREMENTS: OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS
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15. NAME AND ESTABLISHMENT OF AUTHOR

J.C. Mayor
                                   EIR Wuerenlingen AG.
                                   Switzerland
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16. MATERIAL AVAILABLE
NEA-0174/01
File name File description Records
NEA0174_01.001 SOURCE & DATA 552
NEA0174_01.002 OUTPUT 159
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17. CATEGORIES
  • E. Space-Independent Kinetics
  • G. Radiological Safety, Hazard and Accident Analysis

Keywords: feedback, loss-of-coolant accident, reactor kinetics, time dependence.