PANAMA : ein Rechenprogramm zur Vorhersage des Partikelbruchanteils von TRISO-Partikeln unter Störfallbedingungen
PANAMA : ein Rechenprogramm zur Vorhersage des Partikelbruchanteils von TRISO-Partikeln unter Störfallbedingungen
The computer code PANAMA and its underlying modeling assumptions are presented. The models are based on independent measurements of the properties of TRISO particles with a SiC interlayer. Essential features are the calculation of internal gas pressure, of coating strength and its decrease during ir...
Saved in:
Personal Name(s): | Verfondern, Karl |
---|---|
Nabielek, H. | |
Contributing Institute: |
Publikationen vor 2000; PRE-2000; Retrocat |
Imprint: |
Jülich
Kernforschungsanlage Jülich GmbH Zentralbibliothek, Verlag
1985
|
Physical Description: |
VI, 103 p. |
Document Type: |
Report Book |
Research Program: |
Addenda |
Series Title: |
Spezielle Berichte der Kernforschungsanlage Jülich
298 |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
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245 | |a PANAMA : ein Rechenprogramm zur Vorhersage des Partikelbruchanteils von TRISO-Partikeln unter Störfallbedingungen | ||
260 | |a Jülich |c 1985 |b Kernforschungsanlage Jülich GmbH Zentralbibliothek, Verlag | ||
300 | |a VI, 103 p. | ||
490 | 0 | |a Spezielle Berichte der Kernforschungsanlage Jülich |v 298 | |
520 | |a The computer code PANAMA and its underlying modeling assumptions are presented. The models are based on independent measurements of the properties of TRISO particles with a SiC interlayer. Essential features are the calculation of internal gas pressure, of coating strength and its decrease during irradiation and its weakening due to fission product interaction during accidents. At very high temperatures, particle life is determined by SiC thermal decomposition. Good comparison is obtained in the temperature range 1600 - 2500 ° C when applying PANAMA to a wide variation of existing accident simulation experiments with spherical fuel elements. At lower temperatures, PANAMA tends to be over-conservative. Predictions of particle failure during the depressurized accident sequence with the worst temperatures of the 200 MW$_{th}$ , side-by-side Modular Reactor System remain below the level of normal operations. The same holds true for the HTR-500 MW$_{e}$ accident sequence with the system under pressure. In the depressurized case, however, failure of all particles has to be expected after approximately 100 hours in the least favourable core position. | ||
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