Results 21 to 30 of about 9,106 (263)

Injection-Triggered Occlusion of Flow Pathways in Geothermal Operations

Geofluids, 2018
Reasons for injectivity decline were investigated in a low-enthalpy geothermal aquifer in Klaipeda (Lithuania). It is one of the study sites within the DESTRESS project, which demonstrates different stimulation techniques in geothermal reservoirs. Due to
Maren Brehme, Simona Regenspurg, Peter Leary, Fatih Bulut, Harald Milsch, Sigitas Petrauskas, Robertas Valickas, Guido Blöcher   +7 more
doaj   +1 more source

Repurposing idle wells in the North German Basin as deep borehole heat exchangers

Geothermal Energy
This study investigates the feasibility to repurpose wells from gas production for geothermal closed-loop application in the North German Basin (NGB). The objective for this research topic is to extend the value-added chain of idle wells by re-completion
Nora Koltzer, Johannes Schoenherr, Maximilian Sporleder, Jan Niederau, Florian Wellmann   +4 more
doaj   +1 more source

Correction to: Cyclic soft stimulation (CSS): a new fluid injection protocol and traffic light system to mitigate seismic risks of hydraulic stimulation treatments

Geothermal Energy, 2019
After publication of the article [1], it has been brought to our attention that there is an error in Figure 7. Instead of the “2” in the first row of the green and yellow stages of the traffic light system it should be a “3”.
Hannes Hofmann, Günter Zimmermann, Arno Zang, Ki‑Bok Min   +3 more
doaj   +1 more source

Novel District Heating Systems: Methods and Simulation Results

Energies, 2021
Fifth-generation district heating and cooling (5th DHC) systems offer promising approaches to decarbonizing space heating, cooling and domestic hot water supply.
David Huber, Viktoria Illyés, Veronika Turewicz, Gregor Götzl, Andreas Hammer, Karl Ponweiser   +5 more
doaj   +1 more source

Surrogate‐Optimized Flow‐Guided Miniature Condenser for Rapid Exhaled Glucose Detection

Advanced Materials Technologies, EarlyView.
A surrogate‐optimized miniature condenser guides humid exhaled flow toward cold surfaces to accelerate exhaled breath condensate collection. By improving vapor access within a compact footprint, the design increases sample yield. This enables post‐collection enrichment and rapid colorimetric glucose detection from dilute exhaled biomarkers within a 5 ...
Yiming Thomas Lu, Yamin Mansur, Sai Peri, Jiangyuan Wan, Amio Pronoy Das Ritwik, Emily L. Johnson, Jingcheng Ma   +6 more
wiley   +1 more source

Solar thermal vs. PV with a heat pump: A comparison of different charging technologies for seasonal storage systems in district heating networks

Energy Conversion and Management: X
The majority of district heating networks (DHNs) in Germany and other European countries are still supplied by fossil fuels. While several possible technical solutions exist to decarbonize DHNs, the problem is the availability of solar energy – thermal ...
M. Sporleder, M. Rath, M. Ragwitz
doaj   +1 more source

Cyclic soft stimulation (CSS): a new fluid injection protocol and traffic light system to mitigate seismic risks of hydraulic stimulation treatments

Geothermal Energy, 2018
Hydraulic stimulation treatments are standard techniques to access geologic resources which cannot economically be exploited with conventional methods. Fluid injection into unproductive formations may increase their permeability by forming new fractures ...
Hannes Hofmann, Günter Zimmermann, Arno Zang, Ki-Bok Min   +3 more
doaj   +1 more source

From Lab to Landscape: Environmental Biohybrid Robotics for Ecological Futures

Advanced Robotics Research, EarlyView.
This Perspective explores environmental biohybrid robotics, integrating living tissues, microorganisms, and insects for operation in real‐world ecosystems. It traces the leap from laboratory experiments to forests, wetlands, and urban environments and discusses key challenges, development pathways, and opportunities for ecological monitoring and ...
Miriam Filippi
wiley   +1 more source

Ion Superhighways in a Hierarchical Polymer‐Ceramic Membrane Enable Rapid and Selective Lithium Extraction

Advanced Science, EarlyView.
A flexible PDMS‐LATP polymer‐ceramic membrane creates lithium‐ion “superhighways” for rapid and selective extraction from complex brines. The amorphous PDMS matrix suppresses nonselective leakage and stabilizes the ceramic network, while LATP provides preferential Li+ conduction.
Xinxin Wei, Jiawei Sun, Min Wei Boey, Xiaolu Li, Minji Kim, Junghwan Kim, Hongjiang Chen, Patrick H.‐L. Sit, Yixiang Wang, Zhigang Li, Ze‐Xian Low, Jason Chun‐Ho Lam, Alicia Kyoungjin An   +12 more
wiley   +1 more source

New Conceptual Model for the Magma-Hydrothermal-Tectonic System of Krafla, NE Iceland

Geosciences, 2020
The complexity of the Krafla volcano and its geothermal system(s) has puzzled geoscientists for decades. New and old geoscientific studies are reviewed in order to shed some light on this complexity. The geological structure and history of the volcano is
Knútur Árnason
doaj   +1 more source