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    Wyświetlanie 1-4 z 4
    Tytuł:
    Przegląd oprogramowania do numerycznego modelowania procesów środowiskowych w systemach geotermalnych
    A review of applications for numerical modelling of environmental processes in geothermal systems
    Autorzy:
    Zdechlik, R.
    Tomaszewska, B.
    Dendys, M.
    Pająk, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075263.pdf
    Data publikacji:
    2015
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    system geotermalny
    geotermia
    modelowanie numeryczne
    TOUGH
    MODFLOW
    FeFlow
    geothermal system
    geothermic
    numerical modelling
    FEFLOW
    Opis:
    Numerical modelling is widely spread tool used to estimating of the thermal water resources in geothermal systems. Researchers use this tool for the water thermal formation recognition and for simulations of environmental processes occurring in geothermal systems during the operating, given the available technical conditions. A choice of appropriate modelling method is determined by specification of research problems. For solving particular problems there was used software dedicated to hydrogeological modelling, with their separate codes/modules. There are comprehensive applications for modelling only geothermal issues, but there is also possibility adapting software and applications from another geological branches. TOUGH simulator (based on the finite difference method – FDM) is dedicated specially to geothermal issues. PHREEQC and related applications are apply for study of chemical composition of the thermal water. For simulating water circulation in geothermal systems and mass/heat transport issues there are used software applications like MODFLOW and SEAWAT (FDM), and FEFLOW or Aqua3D (based on finite element method – FEM). Development of numerical modelling in geothermic is nowadays related with using new algorithms, improving of data editing and processing, cooperation with GIS and creation possibilities for using conceptual modelling.
    Źródło:
    Przegląd Geologiczny; 2015, 63, 10/2; 1150--154
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wody geotermalne na Niżu Polskim
    Geothermal waters in the Polish Lowlands
    Autorzy:
    Górecki, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074798.pdf
    Data publikacji:
    2010
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    system geotermalny
    historia badań
    ekonomika wykorzystania
    płytkie systemy geotermalne
    geothermal systems
    history of investigations
    economic feasibility
    Opis:
    The paper presents an outline of studies on the potential for utilization of geothermal waters and energy from sedimentary basins of the Polish Lowlands. The history of geothermal investigations in this region was described. High-and low-emperature geothermal systems in the world and in Europe were characterized. Occurrence of geothermal waters in Poland was portrayed. Basic parameters of the waters and factors controlling economically justified exploitation of geothermal waters were discussed. Low-temperature heating systems with heat pumps were characterized. Resources of geothermal waters and energy in Poland represent average European values and are estimated at about 2.9 × 1017 J/km2, that is similar to resources in Spain and France or United Kingdom. Higher water temperatures at comparable depths occur in southern part of Europe, especially in Hungary and Italy, which results from particularly advantageous relationship between geological and thermal parameters. Basic geothermal water resources in the Polish Lowlands are related to theMesozoic aquifers. The geothermal waters are accumulated in sandy formations of Lower Cretaceous and Lower Jurassic. Considerable geothermal energy resources are accumulated in waters of the Upper Jurassic, Middle Jurassic, Upper Triassic and Lower Triassic aquifers. Research projects completed in the last years by a team from the Department of Fossil Fuels, AGH – University of Science and Technology, enabled assessment of geothermal potential related to water-bearing deposits of the Paleozoic formation from Cambrian up to Permian. The low-temperature heating systems with heat pumps were described. They have wider and wider application in Poland for heating individual houses, apartment blocks, municipal buildings and sacral architecture objects. Low operating costs of the low-temperature systems and quick return of investment expenditures are worth to notice.
    Źródło:
    Przegląd Geologiczny; 2010, 58, 7; 574-579
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena uwarunkowań hydrogeotermalnych dla uzdatniania części schłodzonych wód termalnych. Model koncepcyjny systemu geotermalnego Podhala
    The assessment of hydrogeothermal conditions for treatment of part of cooled geothermal waters. The conceptual model of the Podhale geothermal system
    Autorzy:
    Tomaszewska, B.
    Bielec, B.
    Miecznik, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075251.pdf
    Data publikacji:
    2015
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    woda geotermalna
    modelowanie systemu geotermalnego
    model koncepcyjny
    system geotermalny Podhale
    geothermal water
    geothermal system modeling
    conceptual model
    Podhale geothermal system
    Opis:
    Determination of alternative water management in actively exploited geothermal system, which constitutes a significant source of renewable energy requires recognition and determination of reservoir and hydrogeothermal conditions for long-term, safe exploitation of geothermal energy. This paper provides assumptions for the conceptual model, the necessary step to execute numerical modeling of the Podhale geothermal reservoir. For the analyzed area geological conditions were determined, yielding 19 geological structures diverse in terms of thermal parameters, permeability, porosity and rock density. Main trends of tectonic dislocation and groundwater flow directions were indicated along with and characterization of thermal conditions. Exploitation conditions of geothermal boreholes are briefly discussed. Conceptual model for the Podhale geothermal system will subsequently allow for realization of the numerical models and determination of the maximum flow rate of thermal water, which under analyzed reservoir conditions will not disturb performance of the geothermal system, and in particular will not deplete energy resources.
    Źródło:
    Przegląd Geologiczny; 2015, 63, 10/2; 1115--1121
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    German jako wskaźnik warunków hydrogeochemicznych w jeleniogórskim systemie geotermalnym
    Germanium as an indicator of hydrogeochemical conditions in the Jelenia Góra Geothermal System
    Autorzy:
    Dobrzyński, D.
    Gruszczyński, T.
    Birski, Ł.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075752.pdf
    Data publikacji:
    2017
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    german
    silikon
    woda termalna
    system geotermalny
    Jelenia Góra
    Sudety
    Polska
    germanium
    silicon
    thermal water
    Jelenia Góra Geothermal System
    Sudetes
    Polska
    Opis:
    Geochemical studies on trace elements in thermal waters from Cieplice, Karpniki and Staniszów (Jelenia Góra Geothermal System, Sudetes, Poland) revealed a presumably regional relation between germanium and silicon. The Ge:Si ratios in waters of Cieplice are likely controlled by the chemical equilibrium process of silicate minerals transformation in granite aquifer-rocks. Geochemical inverse mass balance modelling using main rock-forming minerals of actual composition shows that incongruent dissolution ofprimary silicate minerals with forming secondary (clay minerals, silica forms) phases is responsible for thermal water chemistry in Cieplice. Available data on germanium in silicate minerals combined with the results of geochemical modelling give Ge:Si ratios close to real values. A chemical non-equilibrium, and a gradual decrease of both the germanium content and the Ge:Si ratio have been identified in the thermal waters from two new intakes (Karpniki, Staniszów).
    Źródło:
    Przegląd Geologiczny; 2017, 65, 11/1; 946--950
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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