Sicherheitsstudie für Hochtemperaturreaktoren unter deutschen Standortbedingungen: Ergebnisbericht über die Phase l a „Kritische Bewertung der AlPA-Studie"
Sicherheitsstudie für Hochtemperaturreaktoren unter deutschen Standortbedingungen: Ergebnisbericht über die Phase l a „Kritische Bewertung der AlPA-Studie"
This report summarizes the results of a comprehensive review of the American AIPA Study which is an assessment of the risk in accident conditions for the HTGR-1160 design. This review has shown, that the accident sequences following 'Reheater Leaks', 'Loss of Offsite Power1 and '...
Saved in:
Personal Name(s): | Altes, J. |
---|---|
Ashworth, F. P. O. / David, P. H. / Döhler, J. / Linnertz, P. / Meister, G. / Moormann, R. / Schwarzer, K. / Talarek, H. D. / Wolters, J. / Kasper, K. (Editor) / Kröger, W. (Editor) / Müller, A. (Editor) / Röthig, K. D. (Editor) / Bongartz, R. (Editor) | |
Contributing Institute: |
Publikationen vor 2000; PRE-2000; Retrocat |
Imprint: |
Jülich
Kernforschungsanlage Jülich GmbH Zentralbibliothek, Verlag
1978
|
Physical Description: |
getr. Pag. |
Document Type: |
Report Book |
Research Program: |
Addenda |
Series Title: |
Spezielle Berichte der Kernforschungsanlage Jülich
19 |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
This report summarizes the results of a comprehensive review of the American AIPA Study which is an assessment of the risk in accident conditions for the HTGR-1160 design. This review has shown, that the accident sequences following 'Reheater Leaks', 'Loss of Offsite Power1 and 'Earthquake', with the latter two leading to core heat-up, are certainly dominant contributors and that the medium risk values should be increased by up to two orders of magnitude. Certain inadequacies of data and methods are apparent and the risk values for accidents such as 'Water Ingrees' and 'Failure of Large PCRV-Closures' are significant and cannot, as in AIPA» be excluded. Nevertheless, the maximum risk value of about 10 /a is still relatively low due to the intrinsic safety characteristics of the HTR. These are demonstratedin the slow rise of core temperatures and in the slow development of severe accident conditions. To improve the value of the study and to reduce the residual uncertainties the spectrum of initiating events should be extended, the methodology, in some areas should be improved and certain accidents should receive a more sophisticated treatment, with combination of phenomena at longer times. In the next stage of the current work in Germany the results will also be transferred to German licensing and site conditions. |