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Wyszukujesz frazę "Berg, H. P." wg kryterium: Wszystkie pola


Tytuł:
Ageing PSA as a support for effective ageing management
Autorzy:
Berg, H. P.
Volkanovski, A.
Powiązania:
https://bibliotekanauki.pl/articles/2069520.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
ageing
ageing management
probabilistic safety assessment
prioritization
management of activities
Opis:
Because of the growing operational age of nuclear power plants, the ageing management of structures, systems and components used in these plants is gaining an important role. Technical systems are subject to timedependent and operationally caused ageing phenomena with modifications of originally given characteristics and, thus, of relevance in terms of safety. Especially physical ageing is of importance. Therefore, a comprehensive ageing management is required. In the context of an integrated safety management it has to be shown how to integrate the safety related issues of ageing into probabilistic safety assessment (PSA). In particular the question is to be answered whether the effort for the execution of an ageing PSA is justified, in particular if the safety significant effects of ageing can be identified and quantitatively estimated. Method for prioritization of the components in the nuclear power plant considering implication of their ageing on safety of the nuclear power plant is presented. On the basis of an actual report on ageing management in German nuclear power plants and a literature survey, this paper tries to estimate the necessity and value for the introduction of an ageing PSA in Germany.
Źródło:
Journal of Polish Safety and Reliability Association; 2014, 5, 2; 1--10
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aircraft crash onto a nuclear power plant : screening procedure and approach for a probabilistic analysis
Autorzy:
Berg, H.-P.
Powiązania:
https://bibliotekanauki.pl/articles/2069647.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
aircraft crash
crash frequency
probabilistic safety assessment
screening
Opis:
International experience has shown that external hazards (e.g. aircraft crash, flooding) can be safety significant contributors to the risk in case of nuclear power plants` operation. This is due to the fact that such hazards have the potential to reduce simultaneously the level of redundancy by damaging redundant systems or their supporting systems. In this paper, the procedure for the external hazard aircraft crash is described In more detail, starting with the screening procedure in order to determine scope and content of the assessment and the approach for those cases where a full scope analysis has to be performed. The consideration regarding this hazard does as not cover an intended aircraft crash.
Źródło:
Journal of Polish Safety and Reliability Association; 2010, 1, 1; 27--34
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An importance measure for multi-component systems with Semi-Markov dynamics
Autorzy:
Hellmich, M.
Berg, H. P.
Powiązania:
https://bibliotekanauki.pl/articles/2069417.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
multi-component system
importance measure
Semi-Markov process
state space model
Opis:
We consider semi-Markov reliability models of multi-component systems with a discrete state space, general enough to include systems with maintenance or repair. We assume that for all system states the functioning or failure of each component is specified. In this setup we propose a component importance measure which is close in spirit to the classical steady state Barlow–Proschan importance measure for repairable binary coherent systems. We discuss our importance measure to some extent, highlighting the relation to the classical Barlow–Proschan measure, and present formulas expressing it in terms of quantities easily obtained from the building blocks of the semi-Markov process. Finally an example of a two-component cold standby system with maintenance and repair is presented which illustrates how our importance measure can be used in practical applications.
Źródło:
Journal of Polish Safety and Reliability Association; 2012, 3, 1; 147--156
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the impact of external flooding to nuclear installations
Autorzy:
Berg, H. P.
Fröhmel, T.
Winter, C.
Powiązania:
https://bibliotekanauki.pl/articles/2069618.pdf
Data publikacji:
2007
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
nuclear power plant
probabilistic safety analysis
external flooding
protection
tsunami
Opis:
The German regulatory body has issued probabilistic safety assessment guidelines, elaborated for a comprehensive integrated safety review of all NPP in operation and containing a newly developed graded approach for the probabilistic assessment of external flooding. Main aspects are explained such as the underlying probabilistic considerations and the mathematical procedures for the calculation of exceedance frequencies. Exemplarily it has been investigated if extreme events such as tsunami waves could be a hazard for NPP at coastal sites in Germany.
Źródło:
Journal of Polish Safety and Reliability Association; 2007, 1; 9--16
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Approach to assess fire risk for nuclear power plants
Autorzy:
Berg, H. P.
Röwekamp, M.
Powiązania:
https://bibliotekanauki.pl/articles/2069409.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
fire
risk assessment
screening
compartment configuration
databases
fire induced core damage states
Opis:
The results of the first fire risk assessments on an international level have shown that fires are one major contributor to the risk of a nuclear power plant depending on the plant specific fire protection concept. Therefore, fire risk assessment has today become an integral part of the probabilistic safety assessment of nuclear power plants in addition to deterministic analyses. Based on existing guidance documents a state-ofthe-art approach for performing probabilistic fire risk assessment has also been developed in Germany. This approach has been exemplarily and completely applied to a German nuclear power plant with boiling water reactor for the full power states PSA. The general approach outlines the steps necessary for performing fire risk assessment and the prerequisites for a sound and traceable database.
Źródło:
Journal of Polish Safety and Reliability Association; 2012, 3, 1; 135--146
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing external explosions and their probabilities
Autorzy:
Berg, H. P.
Hauschild, J.
Powiązania:
https://bibliotekanauki.pl/articles/2069498.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
external explosion
explosion pressure waves
Monte Carlo simulation
probabilistic safety assessment
Opis:
External hazards such as explosions can be safety significant contributors to the risk in case of operation of industrial plants. The procedure to assess external hazard explosion pressure waves within probabilistic safety assessment starts with a screening procedure in order to determine scope and content of the assessment. The second step is to choose an appropriate approach in case that a full scope analysis has to be performed. Several methods can be applied to evaluate the probability of occurrence of an external explosion event. The presented results indicate that the probability of occurrence of external explosion pressure waves can be successfully assessed by means of the Monte Carlo simulation, in particular in difficult site-specific conditions.
Źródło:
Journal of Polish Safety and Reliability Association; 2011, 2, 1; 23--32
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing the risk of the transport of radioactive material
Autorzy:
Berg, H. P.
Powiązania:
https://bibliotekanauki.pl/articles/2069441.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
transport
transport modes
probabilistic safety assessment
risk-informed decision making
transport computer code
spent fuel
radioactive waste
Opis:
Transport of dangerous goods are always under critical observation of the public, in particular in case of transport of spent fuel or radioactive waste. In both cases transports are often crossing borders of countries, e.g., waste resulting from reprocessing of spent fuel. The transports could take place by ships, trucks, rails and airplanes and these options and the resulting risks are compared. Transport risk includes health and safety risks that arise from the exposures to workers and members of the public to radiation from shipments Moreover, it is shown that the more modern approach of risk-informed decision making elaborated for application to nuclear installations can also be applied to assess the risk of the transport of radioactive material.
Źródło:
Journal of Polish Safety and Reliability Association; 2012, 3, 1; 89--100
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Corrosion mechanisms and their consequences for nuclear power Plants
Autorzy:
Berg, H.-P.
Powiązania:
https://bibliotekanauki.pl/articles/2069694.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
corrosion
corrosion types
operating experience
nuclear power plants
Opis:
It is well known that operational conditions in light water reactors strongly influence the corrosion processes. This paper gives an overview which types of corrosion are identified in operating practice based on the evaluation of events which are reported to the authorities in line with the German reporting criteria. It has been found that the main contributor is the stress corrosion cracking. Several examples of different corrosion mechanisms and their consequences are provided for PWR although a high standard of quality of structures, systems and components has been achieved. Recommendations have been given to check the plant specifications concerning the use of auxiliary materials or fluids during maintenance as well as to examine visually the outer surfaces of austenitic piping with regard to residua of adhesive or adhesive tapes within the framework of in-service inspections. However, events in the last two years shows that such problems cannot be totally avoided.
Źródło:
Journal of Polish Safety and Reliability Association; 2009, 1; 23--32
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Critical infrastructure and resilience goals
Autorzy:
Berg, H. P.
Powiązania:
https://bibliotekanauki.pl/articles/2069198.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
critical infrastructure
reliability
resilience
robustness
Opis:
Critical infrastructure risks pose a special problem for all countries. The companies that own these infrastructures operate in competitive and regulated environments. However, it is neither practical nor possible to protect critical infrastructures from all hazards. For the government, the continuity of these infrastructures is critical to many of its fundamental missions: economic stability and growth, national security, public safety, and quality of life. In that context resilience has become an important factor to fulfil the task of the critical infrastructure protection. Thus, the development of a framework to establish resilience goals could be helpful.
Źródło:
Journal of Polish Safety and Reliability Association; 2013, 4, 2; 147--154
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of a framework of safety goals for nuclear installations and its application in Germany
Autorzy:
Berg, H. P.
Powiązania:
https://bibliotekanauki.pl/articles/2069336.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
safety goals
safety assessment
safety verification
multi-units
Opis:
The International Atomic Energy Agency has started a few years ago a project to enhance the existing framework for safety goals for nuclear installations and currently is finalizing a publication aimed to provide guidance for a more holistic approach to establishing and utilizing safety goals for nuclear installations. The intention was to develop a more consistent and holistic framework for safety goals that would be composed of a hierarchical structure of qualitative concepts (e.g. defense in depth, various safety requirements) and quantitative risk metrics. The safety goals should be technology neutral at the higher level and should cover both normal operation and accident conditions as well as the risk to workers, public, and the environment. In the paper the development of a hierarchical framework for safety goals is described including a methodology to derive lower-(more technical) safety goals from the higher goals. Moreover a process for assessing the degree of compliance with the safety goals and their consistent use is provided. As an example the developed framework is applied to the German regulatory framework for nuclear installations but focused on nuclear power plants.
Źródło:
Journal of Polish Safety and Reliability Association; 2015, 6, 1; 15--22
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hazard assessment in case of external flooding
Autorzy:
Iancu, A.
Berg, H. P.
Krauß, M.
Powiązania:
https://bibliotekanauki.pl/articles/2069098.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
external hazards
flooding
safety assessment
modelling
applications
nuclear power plants
Opis:
Risks relating to external hazards, either natural or man-made, have to be taken into consideration in the design of nuclear and other industrial facilities. These risks have to be studied to guarantee the availability and efficiency of safety functions which, e.g. in the case of power reactors, enable a safe shutdown, maintain the reactor in a safe shutdown state, ensure the residual heat removal and the containment of radioactive products. With a view to design protection against risks related to external hazards, these hazards have to be assessed in an appropriate manner. The methods used can be either deterministic or probabilistic. In both cases, the method strongly relies on observations (e.g. flood records) that are processed to define a maximum event for the respective facility design. Moreover, the validity of these records over a certain time frame like 100 years has to be checked. Coping with external hazards such as flooding in the future requires an in-depth assessment taking into account new data, further developed methodologies and criteria. Some of these ideas, developments and applications are provided.
Źródło:
Journal of Polish Safety and Reliability Association; 2016, 7, 1; 87--98
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
How to investigate and assess combination of hazards
Autorzy:
Berg, H. P.
Powiązania:
https://bibliotekanauki.pl/articles/2069232.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
hazards
domino effect
cascade effect
multi-hazard
assessment
Opis:
Operating experience from different types of industrial installations has shown that combinations of different types of different hazards occur during the entire lifetime of the installations. Typically site specific occurring hazards cause or induce other hazards to occur. In particular, natural hazards rarely happen alone. Thus, it is very important to note that almost any event combination of hazards is possible and that it is necessary to identify these interactions and find ways to mitigate the effects of hazard combinations. Therefore, it is a basic task to investigate and assess the relevant combination of hazards not only for a single installation but for the respective site/industrial park. In that context domino effects and cascade effects pose particular challenges for risk management to prevent industrial accidents.
Źródło:
Journal of Polish Safety and Reliability Association; 2016, 7, 1; 1--12
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Human Factors and Safety Culture in Maritime Safety (revised)
Autorzy:
Berg, H. P.
Powiązania:
https://bibliotekanauki.pl/articles/116791.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Maritime Safety
Human Factor
Safety Culture
Safety Management, Maritime Transportation
Maritime Safety Culture
Investigation on Maritime Accidents
Safety Performance
Opis:
As in every industry at risk, the human and organizational factors constitute the main stakes for maritime safety. Furthermore, several events at sea have been used to develop appropriate risk models. The investigation on maritime accidents is, nowadays, a very important tool to identify the problems related to human factor and can support accident prevention and the improvement of maritime safety. Part of this investigation should in future also be near misses. Operation of ships is full of regulations, instructions and guidelines also addressing human factors and safety culture to enhance safety. However, even though the roots of a safety culture have been established, there are still serious barriers to the breakthrough of the safety management. One of the most common deficiencies in the case of maritime transport is the respective monitoring and documentation usually lacking of adequacy and excellence. Nonetheless, the maritime area can be exemplified from other industries where activities are ongoing to foster and enhance safety culture.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 3; 343-352
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interface between nuclear safety and security
Autorzy:
Berg, H, P.
Seidel, F.
Powiązania:
https://bibliotekanauki.pl/articles/2069395.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
safety
security
defence in depth
integrated approach
risk management
risk models
Opis:
Nuclear power plants benefit from a sophisticated and comprehensive safety regime that has been established over the years. However, the security regime for nuclear power plants is far less developed than the safety regime. Although adopting (and adapting) certain elements of the nuclear safety regime could significantly strengthen the nuclear security regime, at least four challenges are likely to surface: national sovereignty, information transparency, lack of policy consensus, and challenges of regime harmonization. Seek an optimal balance between mandatory international standards and voluntary actions and endorse consideration of additional binding and non-binding international safety and security requirements.
Źródło:
Journal of Polish Safety and Reliability Association; 2014, 5, 1; 9--20
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Methods for the treatment of common cause failures in redundant systems
Autorzy:
Berg, H. P.
Görtz, R.
Kesten, J.
Powiązania:
https://bibliotekanauki.pl/articles/2069575.pdf
Data publikacji:
2007
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
nuclear power plant
probabilistic safety assessment
simulation
common cause failure
modelling
Opis:
Dependent failures are extremely important in reliability analysis and must be given adequate treatment so as to minimize gross underestimation of reliability. German regulatory guidance documents for PSA stipulate that model parameters used for calculating frequencies should be derived from operating experience in a transparent manner. Progress has been made with the process oriented simulation (POS) model for common cause failure (CCF) quantification. A number of applications are presented for which results obtained from established CCF models are available, focusing on cases with high degree of redundancy and small numbers of observed events.
Źródło:
Journal of Polish Safety and Reliability Association; 2007, 1; 1--8
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł

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