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    Tytuł:
    Tests of methane desorption and emission from samples of hard coal in the context of mine closures through flooding
    Autorzy:
    Krause, Eugeniusz
    Karbownik, Marcin
    Powiązania:
    https://bibliotekanauki.pl/articles/1839015.pdf
    Data publikacji:
    2019
    Wydawca:
    Główny Instytut Górnictwa
    Tematy:
    methane hazard
    closing mines
    flooding mines
    methane emission
    safety
    underground mining
    zagrożenie metanowe
    zamykanie kopalni
    zalewanie kopalni
    emisja metanu
    bezpieczeństwo
    górnictwo podziemne
    Opis:
    Forecasts of methane emissions during and after flooding a closed gassy hard coal mine and the evaluation of possible methane migration to the surface in post-mining areas, after cutting off the vertical ventilation workings of hard coal mines from the surface, provide valuable information which can help to ensure public safety. This article presents research into the influence of changes in the hydrostatic pressure of a water column in a flooded mine on the volume of methane emission and migration from hard coal seams, during and after the flooding of a closed mine. The tests were conducted based on a modified research method developed by the French National Institute for Industrial Environment and Risks (INERIS), France, and the Central Mining Institute (GIG), Katowice, Poland. A test stand for gas desorption and autoclaves for emissions, under controlled pressure and temperature, were used. The tests were conducted and changes in pressure in the autoclaves over time were observed. The observations led to the conclusion that water inhibits methane desorption and emission from coal to varying extents, depending on the hydrostatic pressure exerted. Based on the conducted tests, developed a model of methane emission into flooded goafs was developed. A method of determining index k2 was also developed, which lowers the forecast volume of methane emission into goafs depending on the value of the hydrostatic pressure of the water column and the level of submersion. Results of the tests form the basis to calculate forecasts in the developed model of methane emission into the goafs of a mine during its closure, which, as a consequence, enables the identification of the level of methane hazard and the selection of preventive measures aimed at combating methane hazard during and after the closure of a gassy mine.
    Źródło:
    Journal of Sustainable Mining; 2019, 18, 3; 127-133
    2300-1364
    2300-3960
    Pojawia się w:
    Journal of Sustainable Mining
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Just transition of post mining areas – technical, economic, environmental and social aspects
    Autorzy:
    Malec, Małgorzata
    Stańczak, Lilianna
    Ricketts, Brian
    Powiązania:
    https://bibliotekanauki.pl/articles/27324388.pdf
    Data publikacji:
    2023
    Wydawca:
    Instytut Techniki Górniczej KOMAG
    Tematy:
    just transition
    post-mining areas
    challenges
    mines
    closing-down process
    green energy storage
    green deal
    green institute
    tereny pogórnicze
    zmiany
    magazyny
    energia
    Opis:
    The article is a review of papers, presentations, expert opinions concerning a just transition of post-mining areas in the light of technical, economic, ecological and social aspects, which were the subject-matter of the International Scientific-and-Technical Conference, organized by the KOMAG Institute of Mining Technology in Gliwice, Poland and the IHP Hydraulics and Pneumatics Research Institute in Bucarest, Romania. The Conference participants concentrated their discussions both on the social effects of transition, on the economic aspects of activities concerning a collaboration of circummining companies as well as on technical and technological challenges in the mines already closed down or in those which are currently subject to the closing-down processes. Some possibilities of a reorientation of the mining plants towards generating and storage of green energy were presented. It should be borne in mind that a transition of the European Economy in the direction of more green and climate friendly is one of the most important objectives determined by the European Union. In particular, it is a big challenge for mining regions such as Silesia in Poland. The transition process includes a liquidation of underground workings and of the surface infrastructure and a series of indispensable activities oriented onto a restoration of the natural environment and a protection of mining plants areas against hazards which may occur after a termination of their operation. The article is ended with some information concerning a role research institutes in the just transition of post-mining areas and a new strategy of KOMAG as GREEN INSTITUTE.
    Źródło:
    Mining Machines; 2023, 41, 1; 11--24
    2719-3306
    Pojawia się w:
    Mining Machines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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