NEA-0427 CONDOR-3.
CONDOR-3, Local and Spectrum Dependent Burnup with Mesh-Wise Depletion
NAME OR DESIGNATION OF PROGRAM, COMPUTER, NATURE OF PHYSICAL PROBLEM SOLVED, 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 OR MONITOR UNDER WHICH PROGRAM IS EXECUTED, OTHER RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES
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| Program name | Package id | Status | Status date |
|---|---|---|---|
| CONDOR-3 | NEA-0427/01 | Tested | 01-AUG-1975 |
Machines used:
| Package ID | Orig. computer | Test computer |
|---|---|---|
| NEA-0427/01 | IBM 370 series | IBM 370 series |
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3. NATURE OF PHYSICAL PROBLEM SOLVED
CONDOR-3 is a few group bi-dimensional lifetime program. The types of reactor regions which can be considered are - normal diffusion regions, non-diffusion or logarithmic regions in which a logarithmic derivative condition is given on the boundary, rodded regions which simulate the control rod poison properly smeared. The types of considered poisons are - burnable poisons, poison diluted over the whole reactor according to the dilution factor theta, poison in the rodded regions. The types of diffusion calculations are - straight Keff, dilution factor theta, poison in rodded region, boundary of a rodded region.
The main differences of CONDOR-3 with respect to CONDOR-2 concern the following points: the depletion equations are solved mesh-wise instead of region-wise. The library of basic cross sections is still a microscopic library or a macroscopic library (to be used for non-lifetime calculations). However, one can use different basic microscopic libraries for different regions. Moreover, the basic microscopic library (or libraries) can be modified at each time step by the program itself by computational procedures which obviously must be set up bearing in mind the reactor type.
CONDOR-3 is a few group bi-dimensional lifetime program. The types of reactor regions which can be considered are - normal diffusion regions, non-diffusion or logarithmic regions in which a logarithmic derivative condition is given on the boundary, rodded regions which simulate the control rod poison properly smeared. The types of considered poisons are - burnable poisons, poison diluted over the whole reactor according to the dilution factor theta, poison in the rodded regions. The types of diffusion calculations are - straight Keff, dilution factor theta, poison in rodded region, boundary of a rodded region.
The main differences of CONDOR-3 with respect to CONDOR-2 concern the following points: the depletion equations are solved mesh-wise instead of region-wise. The library of basic cross sections is still a microscopic library or a macroscopic library (to be used for non-lifetime calculations). However, one can use different basic microscopic libraries for different regions. Moreover, the basic microscopic library (or libraries) can be modified at each time step by the program itself by computational procedures which obviously must be set up bearing in mind the reactor type.
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4. METHOD OF SOLUTION
The method of spatial nodal expansion and the five points finite difference method are coupled. By means of the spatial nodal expansion the program determines the eigenvalue of the reactor (Keff, theta, poison or boundary of a rodded region). By means of the finite difference method, the program improves the above calculation and the group flux spatial distribution.
The method of spatial nodal expansion and the five points finite difference method are coupled. By means of the spatial nodal expansion the program determines the eigenvalue of the reactor (Keff, theta, poison or boundary of a rodded region). By means of the finite difference method, the program improves the above calculation and the group flux spatial distribution.
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7. UNUSUAL FEATURES OF THE PROGRAM
The chains of burnable isotopes can be defined by the user without unjustified restrictions.
However, a standard set of isotopic chains is built into the code.
The isotopes can be assigned either constant self-shielding factors or concentration dependent self-shielding factors.
The chains of burnable isotopes can be defined by the user without unjustified restrictions.
However, a standard set of isotopic chains is built into the code.
The isotopes can be assigned either constant self-shielding factors or concentration dependent self-shielding factors.
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NEA-0427/01
| File name | File description | Records |
|---|---|---|
| NEA0427_01.001 | SOURCE PROGRAM (F4) | 9229 |
| NEA0427_01.002 | OVERLAY CARDS | 51 |
| NEA0427_01.003 | SAMPLE PROBLEM DATA | 276 |
| NEA0427_01.004 | JCL | 12 |
| NEA0427_01.005 | SAMPLE PROBLEM PRINTED OUTPUT | 6475 |
Keywords: burnup, control elements, depletion, lifetime, poisoning, two-dimensional.