We are pleased to announce that Farzaneh Nazari, doctoral researcher at the University of Manchester and group member of SFB 1313 Mercator Fellow Vahid Joekar-Niasar, will give the SFB 1313 "Pretty Porous Science Lecture" #58. Her talk will be on "Implications of Non-Ideal Gas Dispersion for Underground Hydrogen Storage".
Date: 19 November 2024
Time: 3 pm CET
Speaker: Farzaneh Nazari, The University of Manchester (UK)
Lecture title: "Implications of Non-Ideal Gas Dispersion for Underground Hydrogen Storage"
Place: Multi Media Lab (MML), U1.003, Pfaffenwaldring 61, 70569 Stuttgart, Campus Vaihingen
Abstract
Gas displacement in porous media is essential in various industrial and environmental contexts, such as in underground hydrogen storage, where understanding the interaction between hydrogen and cushion gases is critical. The current research examines the unusual dispersion patterns of gas mixtures under opposing flow directions during injection and production phases. The gaseous system presents unique complexities, including non-ideal mixing, compressibility, and higher diffusivity relative to Newtonian fluids. Our findings reveal that dispersion behaviour differs significantly between injection and production scenarios, with increased non-ideality of the gas mixture amplifying these variations. Unlike dispersivity observed in Newtonian fluid flow, gas displacement dispersivity depends not only on the structure of the porous medium but also on the specific properties of the gases involved.