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    Wyświetlanie 1-6 z 6
    Tytuł:
    Study of the Impact of Petroleum Hydrocarbons on Sea Organisms
    Autorzy:
    Kurylenko, V.
    Izosimova, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/125095.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    hydrobionts
    petroleum products
    oil pollution
    Opis:
    According to many intenstigations, oil pollution cause difficult changes of structure and function of natural ecosystems, as well as violation of metabolic processes, production and destruction of organic matter, and consequently leads to a decrease in species diversity. Studies show that planktonic animals are quite sensitive to oil pollution of sea water, which accelerates their death in the concentration of 0.01 mg·dm-3.
    Źródło:
    Journal of Ecological Engineering; 2016, 17, 1; 26-29
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Research into the effects of the effective microorganisms addition on the engine oil viscosity
    Autorzy:
    Krakowski, Rafał
    Powiązania:
    https://bibliotekanauki.pl/articles/246239.pdf
    Data publikacji:
    2019
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    petroleum products
    oil viscosity
    engine oil
    microbiological contamination
    effective microorganisms
    Opis:
    In the article, changes in the properties of oils during operation were characterized. The main reason for this is the continuous aging process of the used oil caused by the interaction of oxygen contained in the air, which reacts relatively easily with hydrocarbons and the oxidation process is accelerated just by high temperature. Then the problem of microorganisms occurring in petroleum products and their effect on the properties of oils and the operation of the internal combustion engine was presented. The next part of the article presents effective microorganisms, i.e. what they are and how they work, in particular, their composition and appropriate development conditions. In addition, some of their specific applications were briefly described. In the next part of the article, the research methodology, applied oil samples with additives of effective microorganisms, both for fresh oil and used oil were described. In addition, the measuring test stand with instrumentation and measuring device was shown. The main part of the article contains the characteristics of dynamic viscosity as a function of temperature for fresh oil and used oil compared with oils with the addition of microorganisms in liquid form and ceramic tubes. The developed graphs enabled analysis of the effect of the addition of microorganisms on oil viscosity as ecological products.
    Źródło:
    Journal of KONES; 2019, 26, 3; 105-112
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Methods for controlling or limiting the development of microorganisms in petroleum products
    Autorzy:
    Krakowski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/244624.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    petroleum products
    microbiological contamination
    microorganisms
    biocides
    fuel
    oil
    Opis:
    In the article, review of the literature on the subject currently used methods of controlling or limiting the development of microorganisms in petroleum products was made. The problem of microbial contamination in petroleum products was presented, which is still valid and is becoming more common. In the article, microbiological contaminants present in petroleum products were described. In the following part of the article the various methods of combating microbial contamination in petroleum products, which include physical methods, thermal disinfection and chemical methods were presented. In due to the limited use of physical methods, the article focused on methods widely disseminated. Combating harmful microorganisms using a biocide were described, which due to their harmful effects on beneficial microorganisms and the environment are becoming more and more limited use. Because of their harmful effects on beneficial microorganisms and the environment, their use is becoming more limited. Furthermore, another method of controlling microorganisms during storage of the fuel by means of cleaners that help to eliminate the water, reducing sludge was presented. Apart from the measures to combat microorganisms and additives of cleaning properties, the simplified methods for determining the amount of microorganisms in the fuel using the kits containing the finished substrate suitable for growth of microorganisms are described. These kits allow the monitor the status of microbial petroleum products and thus help prevent many crashes. In the final part of the article authors proposed other ways to control or limit microbial growth are presented. The work conclusions were completed. The most important is that there is a need to develop effective methods of combating microbial contamination of fuels and oils by means of measures environmentally friendly.
    Źródło:
    Journal of KONES; 2016, 23, 3; 281-288
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of microorganisms inhabiting in the environment of diesel and lubricating oil to the operation of machinery and marine equipment
    Autorzy:
    Krakowski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/244397.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    microorganisms
    petroleum products
    fuel system
    oil system
    modelling
    settling tanks
    filters
    Opis:
    In this article, the problem of microbial contamination occurring in the fuels and oils was presented. It shows the types of microorganisms and the conditions for their growth. Then the factors influencing the growth of bacteria in petroleum products were described in detail. In the next section the symptoms, development and contamination of petroleum products was discussed. The influence of microbial contamination on the marine engine fuel system and the problems that this brings were also presented. In the following part of the article, the impact of microbial contamination of fuel tanks and purifiers was described. Then the causes of sludge were discussed and contamination layers in the settling tanks were presented. In the next part of the article the fuel impact modelling of microbial contamination on filtration efficiency was performed. The modelling presented in the article is an example showing how undesirable phenomenon is the microbial contamination and how pollution affects the other elements of the entire system. As part of the modelling, numerical model of filtration with the solution was presented. Then analysis results on the basis of the impurities concentration characteristics in the fuel as a function of the fouling thickness in the partition of the filter is performed. The development of impurities was divided into three stages. For each case the line trend and forecast further growth after the application of measures to prevent the proliferation of microorganisms were designated. The article was completed applications, of which the most important is the need to combat harmful microorganisms. And besides, there is a need to find new methods of combating microbial contamination that will not destroy beneficial microorganisms and will be environmentally friendly.
    Źródło:
    Journal of KONES; 2016, 23, 2; 201-208
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelling the impact of microbial contamination of fuel filtration efficiency
    Autorzy:
    Krakowski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/134199.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    modeling
    filtration
    microorganisms
    petroleum products
    fuel system
    oil system
    modelowanie
    filtracja
    mikroorganizmy
    przetwory naftowe
    układ paliwowy
    układ olejowy
    Opis:
    In this paper the concept of filtration and the problem of microbial contamination occurring in the fuels and oils was presented. Then the factors influencing the growth of bacteria in petroleum products were described in detail. In the next part of the article modeling of the impact of fuel microbial contamination on filtration efficiency was performed. The modeling presented in the article is an example showing how undesirable phenomenon is the microbial contamination and how pollution affects the other elements of the entire system. As part of the modeling, numerical model of filtration with the solution was presented. Then analysis results on the basis of the impurities concentration characteristics in the fuel as a function of the fouling thickness in the partition of the filter is performed. The development of impurities was divided into three stages. In the article for one case the trend line was presented. The article was completed conclusions.
    Źródło:
    Combustion Engines; 2017, 56, 2; 133-136
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The trade of energy commodities between the European Union and the United States – crude oil and natural gas
    Analiza przepływów surowców energetycznych pomiędzy Unią Europejską a USA – ropa naftowa i gaz ziemny
    Autorzy:
    Olkuski, T.
    Szurlej, A.
    Tora, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/216757.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
    Tematy:
    energy resources
    crude oil
    natural gas
    unconventional deposits
    petroleum products
    surowce energetyczne
    ropa naftowa
    gaz ziemny
    złoża niekonwencjonalne
    produkty ropopochodne
    Opis:
    The trend towards globalization can be observed for many years. It is reflected by the ongoing elimination of trade barriers between countries and the introduction of a system of mutual recognition of quality standards. The best example is the European Union, where a common market for many industries has been developed. Such a common market has already existed before in the United States of America and that this is why the negotiations on the merger of the largest and most developed economies in the world started in 2013. The currently negotiated agreement, the Transatlantic Trade and Investment Partnership (TTIP) is designed to eliminate barriers to trade and capital flows between the two mentioned markets. The article attempts to evaluate the trade of energy commodities, namely crude oil and natural gas, between the European Union and the United States. The estimates for the next years are based on historical data and the current state. [...]
    Od wielu lat daje się zauważyć dążenie do globalizacji. Przejawia się ono znoszeniem barier celnych pomiędzy państwami, a także wprowadzaniem wspólnych ujednoliconych standardów produkcyjnych. Najlepszym przykładem jest Unia Europejska, gdzie w wielu dziedzinach udało się stworzyć wspólny rynek. Taki wspólny rynek istniał już wcześniej w Stanach Zjednoczonych Ameryki Północnej i właśnie dlatego w 2013 roku podjęto negocjacje w sprawie połączenia tych największych i najlepiej rozwiniętych gospodarek świata. Negocjowane obecnie porozumienie, nazwane Transatlantyckie Partnerstwo w dziedzinie Handlu i Inwestycji (ang. Transatlantic Trade and Investment Partnership – TTIP), ma pomóc w zniesieniu barier w przepływach towarowych i kapitałowych pomiędzy tymi rynkami. W artykule podjęto próbę analizy przepływów surowców energetycznych, a konkretnie ropy naftowej i gazu ziemnego, pomiędzy Stanami Zjednoczonymi i Unią Europejską. Na podstawie danych historycznych oraz obecnego stanu przedstawiono prognozy na najbliższe lata. [...]
    Źródło:
    Gospodarka Surowcami Mineralnymi; 2016, 32, 4; 141-155
    0860-0953
    Pojawia się w:
    Gospodarka Surowcami Mineralnymi
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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