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    Wyświetlanie 1-4 z 4
    Tytuł:
    Failure risk analysis of water distributions systems using hydraulic models on real field data
    Autorzy:
    Studziński, Andrzej
    Pietrucha-Urbanik, Katarzyna
    Powiązania:
    https://bibliotekanauki.pl/articles/95758.pdf
    Data publikacji:
    2019
    Wydawca:
    Fundacja Ekonomistów Środowiska i Zasobów Naturalnych
    Tematy:
    zaopatrzenie w wodę
    awaria
    model hydrauliczny
    wskaźnik ryzyka
    analiza niezawodności
    water supply
    failure
    hydraulic model
    risk indicator
    reliability analysis
    Opis:
    At this paper the analysis of failure risk in the two water supply systems in the south-eastern Poland is presented. For this purpose the hydraulic models of the water networks created in the EPANET 2 on the basis of data obtained from the water networks operation were used. The consequences of failure of individual pipelines were determined. The areas that are most vulnerable to pressure fluctuations in the water supply system resulting from the failure of these pipelines, were located.
    Źródło:
    Ekonomia i Środowisko; 2019, 1; 152-165
    0867-8898
    Pojawia się w:
    Ekonomia i Środowisko
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Noise analysis and reduction methods in sanitation facilities and equipment
    Autorzy:
    Kalda, Galyna
    Paździorny, Tomasz
    Pietrucha-Urbanik, Katarzyna
    Powiązania:
    https://bibliotekanauki.pl/articles/2173150.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
    Tematy:
    noise
    sanitation facilities
    sanitation equipment
    noise reduction method
    hałas
    sprzęt sanitarny
    metody redukcji hałasu
    Opis:
    The article presents an analysis of noise in sanitary devices, and the described methods of reducing noise in places where noise occurs. The given results of noise tests of sanitary facilities and workplaces concerns one of the municipal company. Described sources of noise in water supply, sewage as well as ventilation and air conditioning systems. It has been shown that the noises occurring in residential buildings may be caused by excessively high pressure inside the installation, where, for example, when closing the valve, a water hammer phenomenon arises, causing audible noises, especially when the installation is made of metal materials. The article analyzes noise in sanitary facilities, describes the methods of reducing noise in places where noise occurs. The given results of noise tests of sanitary facilities and workplaces in one of the municipal companies of the city of the Subcarpathian province. Described sources of noise in water supply, sewage as well as ventilation and air conditioning systems. It has been shown that the noises occurring in residential buildings may be caused by excessively high pressure inside the installation, where, for example, when closing the valve, a water hammer phenomenon arises, causing audible noises, especially when the installation is made of metal materials. It has been shown that the main causes of noise in plumbing systems can be rigid pipe fittings. Noises in the sewage system are related to the outflow of used water in vertical and horizontal sections. The phenomenon most often occurs in places connecting vertical pipes with horizontal pipes, as well as the use of too small diameters of pipes. Material noise reduction in sewage systems can be ensured thanks to a properly designed system of fastening pipes to fixed elements. An important step is to use appropriate sound insulation to stop unwanted sounds. The reason for noise in the air-conditioning and ventilation system are changes in the velocity of the flowing air mass and the occurrence of turbulences during the change of the air flow direction. This causes the ducts to resonate and the air flow noise through the diffusers. The most common noise problem in the central heating installation is the use of a solid fuel boiler, the maintenance work of the device is a problem, as it requires cleaning the furnace, which is related to the noise that is transmitted through the installation pipes to the rooms. Based on the analysis of workstations at the municipal company plant, it has been shown that the highest conformity deviation level is in the drying room in the position of a machine and device operator.
    Źródło:
    Czasopismo Inżynierii Lądowej, Środowiska i Architektury; 2022, 39, 69; 17--26
    2300-5130
    2300-8903
    Pojawia się w:
    Czasopismo Inżynierii Lądowej, Środowiska i Architektury
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ecological safety as an important part of environmental and people security
    Autorzy:
    Kalda, Galyna
    Sokolan, Yulia
    Pietrucha-Urbanik, Katarzyna
    Powiązania:
    https://bibliotekanauki.pl/articles/2201952.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
    Tematy:
    environmental safety
    standards
    facilities
    environmental problems
    bezpieczeństwo środowiska
    problemy środowiska
    standardy
    bezpieczeństwo ekologiczne
    Opis:
    The article substantiates the importance of finding and studying methods of restructuring of consciousness in relation to nature, the development of new priorities of interaction between society and the environment as a fundamentally different path of development of civilization. The main characteristics of environmental education as one of the main social aspects of environmental safety at the present stage are given. The essence and assessment of ecological competence as an important integral indicator of learning achievements are defined. It is shown, what features are characterized by global ecological safety and on what the safety of human stay both in the workplace and in the environment is based. The authors show a set of environmental standards, which are important to ensure environmental safety. The problems of environmental security, as well as methods of scientific study of environmental factors are presented. It is shown what impact anthropogenic environmental security has on global environmental security. An analysis of the requirements that should be observed in the construction process, such as planning and development of territories, so that it is not a threat to the environmental safety of the environment in general and individuals in particular is carried out. The basic hygienic principle of the planning organization of the territory of new areas of human habitation as well as reconstruction of old territories is presented. It is shown that to ensure human ecological safety around industrial enterprises and facilities with technological processes it is necessary to create special protections, sanitary and protection zones.
    Źródło:
    Czasopismo Inżynierii Lądowej, Środowiska i Architektury; 2023, 70; 5--15
    2300-5130
    2300-8903
    Pojawia się w:
    Czasopismo Inżynierii Lądowej, Środowiska i Architektury
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Methods for identifying threats of critical infrastructure systems within Baltic Sea region
    Autorzy:
    Tchórzewska-Cieślak, Barbara
    Pietrucha-Urbanik, Katarzyna
    Szpak, Dawid
    Powiązania:
    https://bibliotekanauki.pl/articles/2068699.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
    Tematy:
    failure
    system safety
    safety management
    risk
    security
    threats
    FMEA
    safety
    failure analysis
    Bayes network
    Opis:
    In the analysis of the operation of critical infrastructure systems it is important to perform the analysis of the safety of the operation. The daily operation of such systems is inherently associated with the occurrence of various types of random undesirable events. Therefore, in the paper the matrix and logical trees methods used in the analysis of the risk of threats in critical infrastructure systems within the Baltic Sea, were presented. The analysis and assessment of the protection of technical system was performed using the FMEA method (Failure Mode and Effect Analysis). As to analyse the cause and effect of undesirable events the method of Bayes' theorem and Java Bayes program were implemented, which allows to identify the probability of the event occurrence.
    Źródło:
    Journal of Polish Safety and Reliability Association; 2019, 10, 1; 149--166
    2084-5316
    Pojawia się w:
    Journal of Polish Safety and Reliability Association
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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