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    Wyświetlanie 1-8 z 8
    Tytuł:
    Comparative analysis of using borehole heat exchangers in Macedonia and in Poland
    Autorzy:
    Kowalski, T.
    Ruvceska, A.
    Śliwa, T.
    Bieda, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/298667.pdf
    Data publikacji:
    2017
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    borehole heat exchangers
    geothermal energy
    heat pump
    hot tap water
    Opis:
    Using borehole heat exchangers for heating and cooling in different climate conditions were analysed and compared in this paper, considering the heating and cooling modes of the heat pump. Economic analysis were made according to the energy demand for heating, cooling and hot tap water with borehole heat exchangers for a typical family house. The costs for running borehole heat exchangers in Macedonia and Poland were also based on the average monthly temperatures and geological profile of the location.
    Źródło:
    AGH Drilling, Oil, Gas; 2017, 34, 1; 141-156
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative analysis of borehole heat exchanger use in different climatic conditions
    Autorzy:
    Śliwa, T.
    Decan, G.
    Sapińska-Śliwa, A.
    Bieda, A.
    Kowalski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/298830.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    borehole heat exchangers
    Opis:
    The climatic conditions and the heating and cooling load between Ghent, Belgium, and Krakow, Poland, are compared. The cost of heating and cooling is calculated and compared. Heating in Belgium is done by using natural gas, just like in Poland, but due to higher gas prices, cost of heating is higher in Belgium than in Poland. That is why an interesting alternative for heating and cooling, namely borehole heat exchanger coupled with a heat pump, is calculated. This seems to be an economic and environmentally friendly alternative for heating and cooling.
    Źródło:
    AGH Drilling, Oil, Gas; 2016, 33, 2; 483-494
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geological and drilling aspects of construction and exploitation geothermal systems HDR/EGS
    Autorzy:
    Sapińska-Śliwa, A.
    Kowalski, T.
    Knez, D.
    Śliwa, T.
    Gonet, A.
    Bieda, A
    Powiązania:
    https://bibliotekanauki.pl/articles/298836.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    hot dry rocks
    geothermal energy
    fracturing of rocks
    enhanced geothermal systems
    Opis:
    The article presents an overview of developing unconventional geothermal systems, such as Hot Dry Rock Systems (HDR), where is used the heat of dry rock and enhanced system with smali water tributary called Enhanced Geothermal Systems (EGS). These systems provide utilization of geothermal energy in reservoirs (i.a. granites) where conventional methods are not possible to use. Operation HDR/EGS involves the use rock heating through warming medium, which flowing between the production and injection boreholes. In most cases medium introduced artifically by hydraulic fracturing. Currently, most of the projects HDR/EGS is in the implementation phase. Based on gathered materials an analysis of the construction and exploitation geothermal systems. Take into account geological and drilling aspects.
    Źródło:
    AGH Drilling, Oil, Gas; 2015, 32, 1; 49-63
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A study of hydraulic characteristic for borehole heat exchangers
    Autorzy:
    Śliwa, T.
    Jaszczur, M.
    Kruszewski, M.
    Sapińska-Śliwa, A.
    Bieda, A.
    Kowalski, T.
    Złotkowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/298988.pdf
    Data publikacji:
    2017
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    thermal response test
    borehole heat exchanger
    hydraulic characterization
    Opis:
    Thermal Response Test (TRT) is a standard test performed in borehole heat exchangers (BHE), which provides thorough understanding of thermal parameters of surrounding rock mass. Following work consists of calculations for hydraulic power and pressure losses along the BHE’s length. Analysis was carried out in eight BHE’s with different diameters, lengths and heat carriers in various areas throughout Poland. In accordance with TRT results, potential power exchanged between BHE and rock mass was determined. In order to find relations between pressure losses and volumetric flow rate, hydraulic tests in average static temperature of rock mass and during heating period were investigated. Proportions between hydraulic power and total power exchange with rock mass are also presented in following research.
    Źródło:
    AGH Drilling, Oil, Gas; 2017, 34, 1; 123-139
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The analysis of heating output evaluation methods for borehole heat exchangers
    Autorzy:
    Śliwa, T.
    Grygieńcza, A.
    Bieda, A.
    Sapińska-Śliwa, A.
    Gonet, A.
    Jaszczur, M.
    Kowalski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/299135.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    borehole heat exchanger
    geoenergetics
    heat pumps
    thermal response test
    Opis:
    Projects involving borehole heat exchangers more often need to undergo a series of tests before implementation. Inserted pipes and cement in the borehole may have diff erent thermal properties. Until recently, such values were determined in approximate, based on values taken from the literature. Special methods are used more often to perform this type of work in order to correctly determine the properties of a borehole heat exchanger. The aim of the study was to present an analysis of thermal properties of borehole heat exchangers with the main emphasis on parameters such as thermal conductivity and thermal resistance. The analyzed data was obtained through the use of three methods:– analysis of the lithological profi le with rock conductivity based on the literature,– analysis of natural temperature profi le in aborehole heat exchanger (logger NIMO-T),– thermal response test.
    Źródło:
    AGH Drilling, Oil, Gas; 2016, 33, 3; 579-594
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Specifying the number of borehole heat exchangers based on thermal response test and geoenergetic analysis
    Autorzy:
    Śliwa, T.
    Sapińska-Śliwa, A.
    Gonet, A.
    Jezuit, Z.
    Bieda, A.
    Kowalski, T.
    Ozimek, J.
    Złotkowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/298689.pdf
    Data publikacji:
    2017
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    geoenergetics
    borehole heat exchangers
    geothermal heat pumps
    Opis:
    For the correct design, the number and the location of borehole heat exchangers, it is necessary to know thermal properties of rocks and the exchanger. This applies particularly to larger installations, more than 100 kW. One of the methods of determining these values is Thermal Response Test. This method is based on measurements in the first drilled borehole heat exchanger. Based on results of the TRT geothermal analysis is made. The analysis defines: the number of wells, the arrangement of wells, and the parameters of temperature of heat carrier after long-term use. This analysis based on calculations using specialist software. This paper presents the determination of the number of borehole heat exchangers and working conditions (temperature of the heat carrier) of an underground heat reservoir accessed using borehole heat exchangers for the building of the Primary School in Myszków.
    Źródło:
    AGH Drilling, Oil, Gas; 2017, 34, 1; 273-290
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The impact of diatomite on the thermal conductivity of solidified grout
    Autorzy:
    Dubiel, S.
    Śliwa, T.
    Kowalski, T.
    Stryczek, S.
    Wiśniowski, D.
    Bieda, A.
    Piwowarczyk, S.
    Beszłej, J.
    Naklicki, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/298779.pdf
    Data publikacji:
    2017
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    heat exchangers
    geothermal wells
    diatomite
    Opis:
    The use of suitable materials for the preparation of sealing grout is an important issue from the point of view of the correct construction of borehole heat exchangers and geothermal wells. The minimization of the loss of heat during the transport of thermal water in geothermal wells can be achieved by use of sealing slurries with reduced thermal conductivity. Such slurries are also recommended in the upper part of deep borehole heat exchangers and the upper part of energy piles. The publication describes the impact of the addition of diatomite as a material lowering the thermal conductivity of solidified grout.
    Źródło:
    AGH Drilling, Oil, Gas; 2017, 34, 3; 691-700
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The impact of graphite impact on the thermal conductivity of the solidified grout
    Autorzy:
    Śliwa, T.
    Kowalski, T.
    Stryczek, S.
    Wiśniowski, D.
    Bieda, A.
    Piwowarczyk, S.
    Beszłej, J.
    Naklicki, M.
    Sapińska-Śliwa, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/298729.pdf
    Data publikacji:
    2017
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    graphite
    thermal conductivity
    geothermal energy
    Opis:
    The fast development of low-temperature geothermal energy affects the search for newer and newer solutions and materials used in the construction of borehole heat exchangers. One of the most important factors affecting the correct operation of heat pump systems with borehole heat exchangers is appropriately selected solidified grout. Solidifies grout has to be characterized by the highest thermal conductivity and good sealing borehole heat exchangers. The paper will present the impact of graphite on the thermal conductivity of solidified grout.
    Źródło:
    AGH Drilling, Oil, Gas; 2017, 34, 4; 811-820
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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