Subsurface hydrogen storage controlled by small-scale rock heterogeneities

Subsurface porous rocks hold significant hydrogen (H₂) storage potential to support an H₂-based energy future. Understanding H₂ flow and trapping in subsurface rocks is crucial to reliably evaluate their storage efficiency. In this work, we perform cyclic H₂ flow visualization experiments on a...

Multiscale Upscaling Study for CO₂ Storage in Carbonate Rocks Using Machine Learning and Multiscale Imaging

Microporosity is commonly assumed to be non-connected porosity and not commonly studied in geoengineering industry. However, the presence of micropores plays a key role in connecting macropores and it can contribute significantly to the overall flow performance. In this study, targeted CO₂ storage carbonate fields in Southeast Asia...

Channeling is a distinct class of dissolution in complex porous media

The traditional model of solid dissolution in porous media consists of three dissolution regimes (uniform, compact, wormhole)-or patterns-that are established depending on the relative dominance of reaction rate, flow, and diffusion. In this work, we investigate the evolution of pore structure using numerical simulations during acid injection...

Pore-Scale Visualization of Hydrogen Storage in a Sandstone at Subsurface Pressure and Temperature Conditions: Trapping, Dissolution and Wettability

Hypothesis<br/><br/>Underground hydrogen (H2) storage is a potentially viable solution for large-scale cyclic H2 storage; however, the behavior of H2 at subsurface pressure and temperature conditions is poorly known. This work investigates if the pore-scale displacement processes in H2-brine systems in a porous sandstone can be sufficiently well...

Investigating trade-offs between the operating cost and green house gas emissions from water distribution systems

For electricity grids with an increasing share of intermittent renewables, the power generation mix can have significant daily variations. This leads to time-dependent emission intensities and volatile electricity prices in the day-ahead and spot market tariffs that can be better utilised by energy intensive industries such as water supply...

Exploring Optimal Pump Scheduling in Water Distribution Networks with Branch and Bound Methods

Water utilities can achieve significant savings in operating costs by optimising pump scheduling to improve efficiency and shift electricity consumption to low-tariff periods. Due to the complexity of the optimal scheduling problem, heuristic methods that cannot guarantee global optimality are often applied. This paper investigates...

Drawing lines in the sand: The evolution of Dutch coastal policy

Definitiestudie gemoderniseerd REVIEW

Definitiestudie PAWN-GIS

Uitbreiding EMISSIE: Documentatie

Belasting van de Nederlandse bodem met meststoffen, ten behoeve van de voor de Commissie Stikstof uitgevoerde landelijke berekeningen van de stikstofuit- en afspoeling vanuit de landbouw

Instrumentarium beleidsanalyse waterhuishouding PAWN I a -Het emissiebestand 1985

Instrumentarium beleidsanalyse waterhuishouding PAWN I b - De emissie-scenario's

Instrumentarium beleidsanalyse waterhuishouding PAWN I c - Belastingberekeningsprogrammatuur EMISSIE

Supplement bij het rapport Emissies in het Nederlandse Rijnstroomgebied: Toevoeging additionele NAP-stoffen voor de bronnen landbouw en atmosferische depositie