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Jordan Cizelj, R.; Kozuh, M.
Proceedings of the Second Regional Meeting on Nuclear Energy in Central Europe1995
Proceedings of the Second Regional Meeting on Nuclear Energy in Central Europe1995
AbstractAbstract
[en] Aging is a phenomenon, which is influencing on unavailability of all components of the plant. The influence of aging on Probabilistic Safety Assessment calculations was estimated for Electrical Power Supply System. The average increase of system unavailability due to aging of system components was estimated and components were prioritized regarding their influence on change of system unavailability and relative increase of their unavailability due to aging. After the analysis of some numerical results, the recommendation for a detailed research of aging phenomena and its influence on system availability is given. (author)
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Source
Stritar, A.; Jencic, I. (Nuclear Society of Slovenia (Slovenia)) (eds.); European Nuclear Society (Switzerland); Ministry of Science and Technology of Slovenia, Ljubljana (Slovenia); Jozef Stefan Institute, Ljubljana (Slovenia); Nuclear Safety Administration of Slovenia, Ljubljana (Slovenia); 615 p; ISBN 961-90004-9-8;
; 1995; p. 214-221; 2. Regional Meeting on Nuclear Energy in Central Europe; Portoroz (Slovenia); 11-14 Sep 1995; 8 refs., 4 figs., 2 tabs.

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Basic, I.; Krajnc, B.
Proceedings of the Second Regional Meeting on Nuclear Energy in Central Europe1995
Proceedings of the Second Regional Meeting on Nuclear Energy in Central Europe1995
AbstractAbstract
[en] The Krsko Source Term Analysis (STA) has been provided as integral part of the Krsko Individual Plant Examination Project (IPE) Level 2 (Containment Analysis). Based on its own definition, the STA quantifies the magnitude, time dependence and composition of the fission product releases which characterize each Release Category (RC). The Krsko STA also addresses the definition of each RC, identification and the choice of dominant accident sequences within a release category, analysis of the representative accident sequences using MAAP 3.OB (Modular Accident Analysis Program) revision 18 to estimate the source term characteristic and discussion of identified major areas of uncertainty. (author)
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Source
Stritar, A.; Jencic, I. (Nuclear Society of Slovenia (Slovenia)) (eds.); European Nuclear Society (Switzerland); Ministry of Science and Technology of Slovenia, Ljubljana (Slovenia); Jozef Stefan Institute, Ljubljana (Slovenia); Nuclear Safety Administration of Slovenia, Ljubljana (Slovenia); 615 p; ISBN 961-90004-9-8;
; 1995; p. 223-230; 2. Regional Meeting on Nuclear Energy in Central Europe; Portoroz (Slovenia); 11-14 Sep 1995; 3 refs., 2 figs., 4 tabs.

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[en] NPP Krsko performed according to GL 88-20, Supplement 1-4 and RUJV requirement the Individual Plant Examination analyses. For the required deterministic analyses the MAAP 3.0B code was used. It was proven that such severe accident analysis can be used for evaluation of the overall level of safety improvement that can be gained with the different modifications and alternate design. In this paper one such important outcomes from these analyses will be presented. (author)
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Stritar, A.; Jencic, I. (Nuclear Society of Slovenia (Slovenia)) (eds.); European Nuclear Society (Switzerland); Ministry of Science and Technology of Slovenia, Ljubljana (Slovenia); Jozef Stefan Institute, Ljubljana (Slovenia); Nuclear Safety Administration of Slovenia, Ljubljana (Slovenia); 615 p; ISBN 961-90004-9-8;
; 1995; p. 231-236; 2. Regional Meeting on Nuclear Energy in Central Europe; Portoroz (Slovenia); 11-14 Sep 1995; 6 refs., 4 figs.

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Prior, R.P.; Lutz, R.J.; Ohkawa, D.K.
Proceedings of the Second Regional Meeting on Nuclear Energy in Central Europe1995
Proceedings of the Second Regional Meeting on Nuclear Energy in Central Europe1995
AbstractAbstract
[en] The Westinghouse Owners Group has completed a major development program in Severe Accident Management. This program draws on all presently available sources of information in the field, including in the field, including NRC, NUMARC and EPRI programs, plant specific Individual Plant Examinations and Probabilistic Safety Assessments, and other international activities. The program has developed a full set of Severe Accident Management Guidance (SAMG) applicable to Westinghouse and Westinghouse licensee PWR plant. The SAMG enhances the capabilities of the plant emergency response team for accident sequences that progress to fuel damage, and therefore beyond the range of applicability of present guidance in the form of Emergency Operating Procedures. Since the first draft of SAMG was transmitted officially to the WOG members and the NRC in July 1993, many activities have been carried out by the different organizations involved, and although no significant changes to the SAMG structure have resulted from these activities, several enhancement have been included, mainly from the comments recorded during the generic SAMG validation exercise at the Point Beach plant. With the issue in June 1994 of the revision 0 SAMG, some plants in the U.S. and abroad are already implementing plant specific guidelines. This paper provides an overview of the SAMG package, and also describe the most important comments and feedback from the validation and review efforts. (author)
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Source
Stritar, A.; Jencic, I. (Nuclear Society of Slovenia (Slovenia)) (eds.); European Nuclear Society (Switzerland); Ministry of Science and Technology of Slovenia, Ljubljana (Slovenia); Jozef Stefan Institute, Ljubljana (Slovenia); Nuclear Safety Administration of Slovenia, Ljubljana (Slovenia); 615 p; ISBN 961-90004-9-8;
; 1995; p. 253-258; 2. Regional Meeting on Nuclear Energy in Central Europe; Portoroz (Slovenia); 11-14 Sep 1995; 7 refs.

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Cizelj, L.; Dvorsek, T.; Petelin, S.
Funding organisation: Slovenian Ministry of Science and technology, Ljubljana (Slovenia)
Proceedings of the Second Regional Meeting on Nuclear Energy in Central Europe1995
Funding organisation: Slovenian Ministry of Science and technology, Ljubljana (Slovenia)
Proceedings of the Second Regional Meeting on Nuclear Energy in Central Europe1995
AbstractAbstract
[en] This analysis was initiated to examine the temperature fields in the steam generator tube in the vicinity of the tube support plates. It is assumed that the flow of the secondary coolant is severely disturbed there, which causes local heating of the tube surface. Different designs of tube support plates (a drilled hole - NE Krsko, broached trefoil and broached quatrefoil designs) were assessed and compared. Inside the drilled hole tube support plate, the temperature of the reactor coolant. Inside broached trefoil and quatrefoil support plates, the tube surface temperature reaches about 10K less than reactor coolant temperature. The most important result concerning the Krsko specific conditions is that the frequency of the detected defects can be correlated with the temperature of the tube outer surface and void fraction of the secondary coolant. (author)
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Source
Stritar, A.; Jencic, I. (Nuclear Society of Slovenia (Slovenia)) (eds.); European Nuclear Society (Switzerland); Ministry of Science and Technology of Slovenia, Ljubljana (Slovenia); Jozef Stefan Institute, Ljubljana (Slovenia); Nuclear Safety Administration of Slovenia, Ljubljana (Slovenia); 615 p; ISBN 961-90004-9-8;
; 1995; p. 276-282; 2. Regional Meeting on Nuclear Energy in Central Europe; Portoroz (Slovenia); 11-14 Sep 1995; 9 refs., 6 figs.

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Kukovica, T.; Mele, I.; Stritar, A.; Isteni, R.
Proceedings of the Second Regional Meeting on Nuclear Energy in Central Europe1995
Proceedings of the Second Regional Meeting on Nuclear Energy in Central Europe1995
AbstractAbstract
[en] Following the strong public opposition after the announcement of the results of possible site selections for the final low and intermediate waste repository in Slovenia in 1993, the Agency for Radwaste Management has completely revised its public information strategy. The information and education programs, that should lead to greater public acceptance, are described. At present the bulletin, leaflets, booklet, permanent exhibition and lectures in the Nuclear Training Centre are applied. (author)
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Stritar, A.; Jencic, I. (Nuclear Society of Slovenia (Slovenia)) (eds.); European Nuclear Society (Switzerland); Ministry of Science and Technology of Slovenia, Ljubljana (Slovenia); Jozef Stefan Institute, Ljubljana (Slovenia); Nuclear Safety Administration of Slovenia, Ljubljana (Slovenia); 615 p; ISBN 961-90004-9-8;
; 1995; p. 363-367; 2. Regional Meeting on Nuclear Energy in Central Europe; Portoroz (Slovenia); 11-14 Sep 1995; 1 ref., 2 figs.

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Ubra, O.; Doubek, M.
Proceedings of the Second Regional Meeting on Nuclear Energy in Central Europe1995
Proceedings of the Second Regional Meeting on Nuclear Energy in Central Europe1995
AbstractAbstract
[en] Horizontal steam generators are typical parts of nuclear power plants with pressure water reactor type VVER. By means of this computer program, a detailed thermal-hydraulic study of the horizontal steam generator PGV-1000 has been carried out and a special attention has been paid to the thermal-hydraulics of the secondary side. A set of important steam generator characteristics has been obtained and analyzed. Some of the interesting results of the analysis are presented in the paper. (author)
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Source
Stritar, A.; Jencic, I. (Nuclear Society of Slovenia (Slovenia)) (eds.); European Nuclear Society (Switzerland); Ministry of Science and Technology of Slovenia, Ljubljana (Slovenia); Jozef Stefan Institute, Ljubljana (Slovenia); Nuclear Safety Administration of Slovenia, Ljubljana (Slovenia); 615 p; ISBN 961-90004-9-8;
; 1995; p. 448-455; 2. Regional Meeting on Nuclear Energy in Central Europe; Portoroz (Slovenia); 11-14 Sep 1995; 6 refs., 11 figs.

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Pevec, D.; Grgic, D.; Langenbuch, S.; Velkov, K.
Proceedings of the Second Regional Meeting on Nuclear Energy in Central Europe1995
Proceedings of the Second Regional Meeting on Nuclear Energy in Central Europe1995
AbstractAbstract
[en] A three dimensional analysis of NEA-NSC 3-D PWR core transient benchmark of uncontrolled control rods withdrawal at zero power is presented. The analysis is performed using the three dimensional code QUABOX/CUBBOX-HYCA which combines coarse mesh neutron flux expansion method with a parallel channel model for the thermal hydraulics. The results for steady state and transient calculations are prepared in a format suitable for inter-comparison with results of other group. (author)
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Source
Stritar, A.; Jencic, I. (Nuclear Society of Slovenia (Slovenia)) (eds.); European Nuclear Society (Switzerland); Ministry of Science and Technology of Slovenia, Ljubljana (Slovenia); Jozef Stefan Institute, Ljubljana (Slovenia); Nuclear Safety Administration of Slovenia, Ljubljana (Slovenia); 615 p; ISBN 961-90004-9-8;
; 1995; p. 107-114; 2. Regional Meeting on Nuclear Energy in Central Europe; Portoroz (Slovenia); 11-14 Sep 1995; 3 refs., 9 figs.

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[en] A drive through detector systems using four plastic scintillators and associated electronics for the detections of small amounts or uranium or plutonium in cars is described. The system has been calibrated with various sample of special nuclear material and the lower detection limits are presented. (author)
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Source
Stritar, A.; Jencic, I. (Nuclear Society of Slovenia (Slovenia)) (eds.); European Nuclear Society (Switzerland); Ministry of Science and Technology of Slovenia, Ljubljana (Slovenia); Jozef Stefan Institute, Ljubljana (Slovenia); Nuclear Safety Administration of Slovenia, Ljubljana (Slovenia); 615 p; ISBN 961-90004-9-8;
; 1995; p. 148-152; 2. Regional Meeting on Nuclear Energy in Central Europe; Portoroz (Slovenia); 11-14 Sep 1995; 2 refs., 1 fig., 3 tabs.

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Stanojevic, M.; Cercek, M.; Gyergyek, T.
Proceedings of the Second Regional Meeting on Nuclear Energy in Central Europe1995
Proceedings of the Second Regional Meeting on Nuclear Energy in Central Europe1995
AbstractAbstract
[en] Experimental investigation of the Langmuir probe characteristic is a magnetized plasma with an electron current along the magnetic field direction shows that the standard procedure for determination of the electron temperature and plasma density, which is applicable in a current - free magnetized plasma, gives erroneous results for these plasma parameters. However, more precise values of the plasma parameters can be calculated from the ion saturation currents and electron temperatures obtained with that procedure for two opposite orientations of the one - sided planar probe collecting surface with respect to the direction of the electron drift. With the existing theoretical models only the order of magnitude of the electron drift velocity can be accurately determined from the measured electron saturation currents for the two probe orientations. (author)
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Source
Stritar, A.; Jencic, I. (Nuclear Society of Slovenia (Slovenia)) (eds.); European Nuclear Society (Switzerland); Ministry of Science and Technology of Slovenia, Ljubljana (Slovenia); Jozef Stefan Institute, Ljubljana (Slovenia); Nuclear Safety Administration of Slovenia, Ljubljana (Slovenia); 615 p; ISBN 961-90004-9-8;
; 1995; p. 168-175; 2. Regional Meeting on Nuclear Energy in Central Europe; Portoroz (Slovenia); 11-14 Sep 1995; 13 refs., 5 figs.

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