[HTML][HTML] An extended methodology for multi-criteria decision-making process focused on enhanced geothermal systems

S Raos, J Hranić, I Rajšl, K Bär - Energy conversion and management, 2022 - Elsevier
When considering geothermal project development, the complex assignment of aggregating
and quantifying the influencing factors and their interactions is an inevitable task that …

Seasonal high temperature heat storage with medium deep borehole heat exchangers

K Bär, W Rühaak, B Welsch, D Schulte, S Homuth… - Energy Procedia, 2015 - Elsevier
Heating of buildings requires more than 25% of the total end energy consumption in
Germany. By storing excess heat from solar panels or thermal power stations of more than …

[HTML][HTML] Assessment of a medium-deep borehole thermal energy storage site in the crystalline basement: A case study of the demo site Lichtwiese Campus, Darmstadt

L Seib, M Frey, C Bossennec, M Krusemark, T Burschil… - Geothermics, 2024 - Elsevier
The use of intermittent renewable energy sources is of great importance for reducing
greenhouse gas emissions. Medium-deep borehole thermal energy storage systems (MD …

AI-based enviro-economic optimization of solar-coupled and standalone geothermal systems for heating and cooling

H Hemmatabady, B Welsch, J Formhals, I Sass - Applied Energy, 2022 - Elsevier
Borehole heat exchanger (BHE) arrays represent a key technology for the future provision of
sustainable building heating and cooling energy. They are either used as pure geothermal …

The deep thermal field of the Upper Rhine Graben

J Freymark, J Sippel, M Scheck-Wenderoth, K Bär… - Tectonophysics, 2017 - Elsevier
Abstract The Upper Rhine Graben has a significant socioeconomic relevance as it provides
a great potential for geothermal energy production. The key for the utilisation of this energy …

Outcrop analogue study of Permocarboniferous geothermal sandstone reservoir formations (northern Upper Rhine Graben, Germany): impact of mineral content …

A Aretz, K Bär, AE Götz, I Sass - International Journal of Earth Sciences, 2016 - Springer
The Permocarboniferous siliciclastic formations represent the largest hydrothermal reservoir
in the northern Upper Rhine Graben in SW Germany and have so far been investigated in …

What classic greywacke (litharenite) can reveal about feldspar diagenesis: An example from Permian Rotliegend sandstone in Hessen, Germany

N Molenaar, M Felder, K Bär, AE Götz - Sedimentary Geology, 2015 - Elsevier
Rotliegend siliciclastic sediments in southern Hessen (Germany) are a good example of
dissolution of detrital feldspars, which is a common feature in many sandstones. Dissolution …

Upscaling thermal conductivities of sedimentary formations for geothermal exploration

W Rühaak, A Guadagnini, S Geiger, K Bär, Y Gu… - Geothermics, 2015 - Elsevier
An important issue in the numerical simulation of geothermal reservoirs is the problem of
scales. Data are collected at a scale usually smaller than the one used to discretise the …

From oil field to geothermal reservoir: Assessment for geothermal utilization of two regionally extensive Devonian carbonate aquifers in Alberta, Canada

LM Weydt, CDJ Heldmann, HG Machel, I Sass - Solid Earth, 2018 - se.copernicus.org
The Canadian province of Alberta has one of the highest per capita CO 2-equivalent
emissions in Canada, predominantly due to the industrial burning of coal for the generation …

Reservoir characterization of the Upper Jurassic geothermal target formations (Molasse Basin, Germany): role of thermofacies as exploration tool

S Homuth, AE Götz, I Sass - Geothermal Energy Science, 2015 - geoth-energ-sci.net
The Upper Jurassic carbonates of the southern German Molasse Basin are the target of
numerous geothermal combined heat and power production projects since the year 2000. A …