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    Wyświetlanie 1-11 z 11
    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:
    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:
    Threats and possible approaches of vulnerability assessment of natural hazards on road infrastructure
    Autorzy:
    Berg, H. P.
    Petrek, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/2068724.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
    Tematy:
    natural hazards
    risk assessment
    hazard management
    road infrastructure
    autonomous driving
    Opis:
    Natural hazards are frequently causing disturbances for different types of infrastructures, in particular for transport systems. Flooding and storm are considered as major threats to these systems. Based on examples of natural hazards’ impact on roads, possible approaches of vulnerability assessment are described. In order to reduce the threats resulting from natural hazards on road transport, appropriate technical countermeasures to increase resilience and robustness for continuous road safety and mobility are necessary. Moreover, the behaviour of the driver is also an important factor to avoid accidents in case of specific weather conditions. Autonomous driving may support a reduction of accidents in the future and, in particular, necessary evacuation processes in cases of wildfires or hurricanes.
    Źródło:
    Journal of Polish Safety and Reliability Association; 2018, 9, 3; 1--10
    2084-5316
    Pojawia się w:
    Journal of Polish Safety and Reliability Association
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Risks and consequences of weather hazards on railway infrastructure
    Autorzy:
    Berg, H. P.
    Powiązania:
    https://bibliotekanauki.pl/articles/2068913.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
    Tematy:
    weather hazards
    risk assessment
    hazard management
    climate change
    railway systems
    Opis:
    Weather-related hazards are already among the factors most frequently causing disturbances for railways. Flooding and storm are considered major threats to the system. Climate change might in the long run produce new kinds of hazards and threats to the railway system, but the climate change will principally involve a strengthening of the already known threats, in terms of increased frequency as well as increased intensity. Based on examples of natural hazards’ impact on railways, possible approaches of vulnerability assessment are described which could also address potential consequences of climate change. In order to reduce the effects of weather hazards technical countermeasures are necessary, but also an appropriate risk management as, e.g., required for flooding in the European Union.
    Źródło:
    Journal of Polish Safety and Reliability Association; 2017, 8, 1; 1--12
    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:
    Resilience of nuclear plants in case of hazards
    Autorzy:
    Berg, H. P.
    Krauß, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2069280.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
    Tematy:
    resilience
    internal hazards
    external hazards
    combination of events
    safety assessment
    Opis:
    Internal and external hazards analysis methods have been used recently to evaluate operating nuclear power plants (NPP) and to identify the resilience of NPP in case of hazards and potential needs for modification of plant systems and procedures as well as to support design of new plants The external hazards risk contribution has been modeled in many NPP PSA (at least for some external hazards) over the last decade, including events occurring during shutdown and low power operations. Recently, a revision of the German nuclear safety regulations has been successfully completed and these regulations entitled “Safety Requirements for Nuclear Power Plants”, also requiring a detailed investigation of internal and external hazards and combinations of different hazards applying deterministic and probabilistic safety assessment methods.
    Źródło:
    Journal of Polish Safety and Reliability Association; 2015, 6, 1; 7--14
    2084-5316
    Pojawia się w:
    Journal of Polish Safety and Reliability Association
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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:
    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:
    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
    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 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
      Wyświetlanie 1-11 z 11

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