Speaker
Description
The transition to intermittent renewable energy sources requires large-scale energy storage to balance supply and demand. Geological hydrogen storage is considered a promising solution; however, large-scale underground hydrogen storage in porous media remains largely untested and associated with scientific challenges, particularly in predicting hydrogen flow and multiphase processes in porous formations (1). Among these challenges, wettability and interfacial properties play a key role in governing capillary pressure and phase distribution.
Experimental studies have investigated hydrogen wettability in sandstone and shale systems under varying pressure and temperature conditions, highlighting its sensitivity to rock type and thermodynamic variables (2,3,4). However, direct experimental comparisons of temperature effects across different gas systems under identical pressure conditions remain limited (3,4). In particular, systematic evaluation of inert (N₂), hydrogen (H₂), and multicomponent gas mixtures such as syngas at moderate pressures has not been widely reported.
In this study, the influence of temperature on the apparent wettability of N₂, H₂, and syngas is investigated at a constant pressure of 5 bar using contact-angle measurements under controlled thermodynamic conditions. The experimental setup maintains consistent substrate preparation and measurement protocols, enabling direct comparison between gas systems. The objective is to provide a systematic evaluation of temperature-induced wettability trends under well-defined conditions.
The outcomes are expected to improve understanding of temperature-dependent gas–water–solid wettability behavior under controlled laboratory conditions and to provide experimental insight into comparative wettability trends among different gas systems.
| Country | Germany |
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| Student Awards | I would like to submit this presentation into the Earth Energy Science (EES) and Capillarity Student Poster Awards. |
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