Zobrazeno 1 - 10
of 190
pro vyhledávání: '"Thomas Kempka"'
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
The Canadian Mackenzie Delta exhibits a high volume of proven sub-permafrost gas hydrates that naturally trap a significant amount of deep-sourced thermogenic methane (CH4) at the Mallik site. The present study aims to validate the proposed Arctic su
Externí odkaz:
https://doaj.org/article/328e75e7ee1e45ee9ac7b6477db38b72
Autor:
Kamil Stańczyk, Robert Hildebrandt, Jarosław Chećko, Tomasz Urych, Marian Wiatowski, Shakil Masum, Sivachidambaram Sadasivam, Thomas Kempka, Christopher Otto, Priscilla Ernst, Hywel Rhys Thomas
Publikováno v:
Energies, Vol 16, Iss 20, p 7217 (2023)
This study, conducted as part of the ROCCS project, investigates the potential of coal seams for CO2 sequestration through in situ tests. The in situ tests, performed at Experimental Mine Barbara in Mikołów, Poland, involved injecting CO2 through a
Externí odkaz:
https://doaj.org/article/f10b55bc9c044929b3379926a3e2170a
Autor:
Maria Wetzel, Christopher Otto, Min Chen, Shakil Masum, Hywel Thomas, Tomasz Urych, Bartłomiej Bezak, Thomas Kempka
Publikováno v:
Energies, Vol 16, Iss 7, p 3279 (2023)
Deep un-mineable coal deposits are viable reservoirs for permanent and safe storage of carbon dioxide (CO2) due to their ability to adsorb large amounts of CO2 in the microporous coal structure. A reduced amount of CO2 released into the atmosphere co
Externí odkaz:
https://doaj.org/article/13d4a6cc6cb64f22a3fb614812d03d4b
Autor:
Pavlos Krassakis, Andreas Karavias, Evangelia Zygouri, Christos Roumpos, Georgios Louloudis, Konstantina Pyrgaki, Nikolaos Koukouzas, Thomas Kempka, Dimitris Karapanos
Publikováno v:
Sensors, Vol 23, Iss 2, p 593 (2023)
Planned decommissioning of coal-fired plants in Europe requires innovative technical and economic strategies to support coal regions on their path towards a climate-resilient future. The repurposing of open pit mines into hybrid pumped hydro power st
Externí odkaz:
https://doaj.org/article/8a0c00a0d8a140e0938406b3342032af
Publikováno v:
Energies, Vol 15, Iss 14, p 4986 (2022)
The Mackenzie Delta (MD) is a permafrost-bearing region along the coasts of the Canadian Arctic which exhibits high sub-permafrost gas hydrate (GH) reserves. The GH occurring at the Mallik site in the MD is dominated by thermogenic methane (CH4), whi
Externí odkaz:
https://doaj.org/article/60cd096cef6c45d5a3acc5770e5db868
Publikováno v:
Energies, Vol 15, Iss 6, p 1974 (2022)
The LArge-scale Reservoir Simulator (LARS) has been previously developed to study hydrate dissociation in hydrate-bearing systems under in-situ conditions. In the present study, a numerical framework of equations of state describing hydrate formation
Externí odkaz:
https://doaj.org/article/8e83b339dfc0435e9eab89f71f9a3e2e
Publikováno v:
Applied Sciences, Vol 11, Iss 19, p 9314 (2021)
Potash seams are a valuable resource containing several economically interesting, but also highly soluble minerals. In the presence of water, uncontrolled leaching can occur, endangering subsurface mining operations. In the present study, the influen
Externí odkaz:
https://doaj.org/article/fc6d5181263f42618b2a1f5501049ad3
Publikováno v:
Water, Vol 13, Iss 2, p 168 (2021)
Leaching zones within potash seams generally represent a significant risk to subsurface mining operations and the construction of technical caverns in salt rocks, but their temporal and spatial formation has been investigated only rudimentarily to da
Externí odkaz:
https://doaj.org/article/918ab4b43afc449f81ce94b1e85c2488
Publikováno v:
Minerals, Vol 11, Iss 2, p 151 (2021)
Quantifying interactions and dependencies among geometric, hydraulic and mechanical properties of reservoir sandstones is of particular importance for the exploration and utilisation of the geological subsurface and can be assessed by synthetic sands
Externí odkaz:
https://doaj.org/article/7a7f086ad1814f80aff880c962edcd81
Publikováno v:
Materials, Vol 13, Iss 14, p 3100 (2020)
Geochemical processes change the microstructure of rocks and thereby affect their physical behaviour at the macro scale. A micro-computer tomography (micro-CT) scan of a typical reservoir sandstone is used to numerically examine the impact of three s
Externí odkaz:
https://doaj.org/article/1a2110fbe0694a1599b8d93f633d6df9