Wyniki wyszukiwania - BazTech

1

Evaluation and statistical interpretation of low-temperature geothermal energy potential for selected locations in Poland

Kłonowski Maciej R., Kocyła Jacek, Ryżyński Grzegorz, Żeruń Mateusz

Geological Quarterly

|

2020

|

Vol. 64, No. 2

506--514

EN

Fulfilling the binding national, EU and other international regulations and requirements on climate and energy implies significant growth of renewables share in the total mix of energy production in Poland. Low-temperature geothermal energy extracted with the use of the ground source heat pumps (GSHP) is an efficient and reliable source for space heating, cooling and seasonal thermal energy storage and recovery, thus it contributes to reduction of low emissions and improvement of air quality. GSHP effectiveness is to a high degree determined by local geological and hydrogeological settings, therefore identification of natural properties of the subsurface is crucial for appropriate design and subsequent operation of the GSHP installations. The thermal conductivity λ of rocks and soils, a key geothermal parameter, depends on such features as the mineral composition of rocks and soils, their texture and water content. Relevant geological data is retrieved from thematic databases, atlases and serial maps and can be gathered in a unitary database with a uniform structure to enable spatial analysis with the use of GIS techniques. Reclassification of lithological properties into geothermal parameters and subsequent calculations of λ values (W/m·K) of rock and soil types can be made using a specific algorithm. The results of these calculations enables computation of four spatial layers of average geothermal conductivity coefficient λ (W/m·K), respectively for the depth intervals of 0-40, 41-70, 71-100 and 101-130 metres b.g.l.

2

Geotermia niskotemperaturowa : informacja geologiczna i procedury prawne

Ryżyński G., Majer E.

Przegląd Geologiczny

|

2015

|

Vol. 63, nr 12/1

1388--1396

EN

In the article legal proceeding for design and implementation of ground source heat exchangers for low temperature geothermal systems were presented and the role of geological authorities in the process was emphasized. The article was focused only on closed loop systems as such are the most popular systems in Poland. The main sources of geological information necessary for the design of ground source heat exchangers were presented. The geological information sources dedicated for low temperature geothermal energy systems (heat pumps) such as GIS geothermal potential maps were identified.

3

Zasady tworzenia baz danych geologiczno-górniczych dla przodków ścianowych kopalń węgla kamiennego

Magda R., Głodzik S., Woźny T.

Gospodarka Surowcami Mineralnymi

|

2007

|

T. 23, z. 1

63-75

PL

W artykule ukazano tok postępowania przy tworzeniu bazy danych geologiczno-górniczych dla przodków eksploatacyjnych ścianowych, dominujących w polskim górnictwie węgla kamiennego. Bazy takie umożliwiają symulację projektowanych robót górniczych i rezultatów produkcyjnych nie tylko w kategoriach wielkości fizycznych, ale również ekonomicznych. Z uwagi na charakteryzujący produkcję górniczą wysoki poziom niepewności, związany zwłaszcza ze zmiennością warunków zalegania złóż, wskazane jest określenie rozkładów prawdopodobieństwa zbieranych porównywalnych danych statystycznych, celem ustalenia wielkości istniejącego ryzyka w odniesieniu do planowanej produkcji. Podane w niniejszym artykule przykłady odnoszą się do ścian prowadzonych w różnych warunkach geologicznych i odmiennie wyposażonych.

EN

In the paper there is described a procedure of construction of geological and mining data bases for longwalls which are commonly used in Polish hard coal mining. The bases can be used for simulation of future workings and theirs results both in engineering and economic relations. Due to high degree of uncertainty characterized mining operations it is useful to determine probability distributions of investigated parameters. The examples shown in the paper relate to different longwalls from geological and equipment point of view.