NESC0521 SOCOOL2
SOCOOL-2, Molten Materials Na Coolant Interaction, Temperature and Pressure Transient
NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROBLEM 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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| Program name | Package id | Status | Status date |
|---|---|---|---|
| SOCOOL-2 | NESC0521/02 | Tested | 01-NOV-1973 |
Machines used:
| Package ID | Orig. computer | Test computer |
|---|---|---|
| NESC0521/02 | IBM 370 series | IBM 370 series |
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4. METHOD OF SOLUTION
A unit cell consisting of a single spherical
particle of molten material surrounded concentrically by sodium is
used as the basis for the calculation. Heat transfer from the
molten particle to the sodium is calculated by an implicit
numerical technique assuming negligible contact resistance at the
interface of the particle. The expansion of the heated sodium is
calculated by the one-dimensional acoustic equation until
vaporization conditions are attained. Upon vaporization, it is
assumed that the particle becomes vapor-blanketed and that no
further heat transfer to or from the sodium occurs. The heated
sodium is then expanded to the specific final pressure in an
isentropic expansion process.
A unit cell consisting of a single spherical
particle of molten material surrounded concentrically by sodium is
used as the basis for the calculation. Heat transfer from the
molten particle to the sodium is calculated by an implicit
numerical technique assuming negligible contact resistance at the
interface of the particle. The expansion of the heated sodium is
calculated by the one-dimensional acoustic equation until
vaporization conditions are attained. Upon vaporization, it is
assumed that the particle becomes vapor-blanketed and that no
further heat transfer to or from the sodium occurs. The heated
sodium is then expanded to the specific final pressure in an
isentropic expansion process.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM
The presence of an
initial amount of sodium vapor or noncondensible gas cannot be
taken into account. Time delays in the process of fragmentation
and mixing of the molten material into the sodium cannot be
considered. Heat transfer during the two-phase expansion of
sodium is neglected.
The presence of an
initial amount of sodium vapor or noncondensible gas cannot be
taken into account. Time delays in the process of fragmentation
and mixing of the molten material into the sodium cannot be
considered. Heat transfer during the two-phase expansion of
sodium is neglected.
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NESC0521/02
| File name | File description | Records |
|---|---|---|
| NESC0521_02.001 | SOURCE PROGRAM (FORTRAN) | 941 |
| NESC0521_02.002 | SAMPLE PROBLEM | 5 |
| NESC0521_02.003 | SAMPLE OUTPUT | 99 |
Keywords: LMFBR reactors, accidents, containment, excursions, fuels, reactor safety, vapors.