Markus Solberg Wahl successfully defends his PhD thesis entitled “Detection and analysis of liquid-solid phase transitions with fiber-optic sensors”, 19th of May, 2020. The thesis addresses the very interesting topic of using fiber optic sensors to detect phase transitions, and is a collection of three papers. In the first paper, we use experiments and modelling to …
Ailo Aasen successfully defends his PhD thesis entitled “Bulk and interfacial thermodynamics of mixtures: From aqueous systems to ultracryogenic fluids”, Friday 27th of March. The thesis deals with a variety of topics such as predicting the thermodynamic properties of fluids that exhibit strong quantum effects, such as hydrogen, helium, neon, deuterium and their mixtures. The thesis …
Our paper entitled Choice of reference, influence of non-additivity, and present challenges in thermodynamic perturbation theory for mixtures has just been published in the Journal of Chemical Physics. In the article, we discuss how thermodynamic perturbation theory should be extended to fluid mixtures, and how different formulations and references will result in different accuracies. All formulations examined …
New article on thermodynamic perturbation theory Read More »
Our paper entitled Equation of state and force fields for Feynman–Hibbs-corrected Mie fluids. II. Application to mixtures of helium, neon, hydrogen, and deuterium becomes Editors pick in J. Chem. Phys. In the paper, we extend the statistical associating fluid theory of quantum corrected Mie potentials (SAFT-VRQ Mie), previously developed for pure fluids, to fluid mixtures. In this model, …
The first accurate representation of quantum fluid mixtures Read More »
Our paper entitled Minimum entropy production in a distillation column for air separation described by a continuous non-equilibrium model has been published in Chemical Engineering Science. In this work, we apply the rate-based model of Taylor and Krishna to describe the separation of air in a low-pressure, packed distillation column. By use of numerical optimization, we identify …
In a paper in Chem. Eng. Sci., we study minimum entropy production in distillation Read More »
Our letter entitled Curvature corrections remove the inconsistencies of binary classical nucleation theory has been accepted for publication in Phys. Rev. Lett. In the letter we have studied the condensation process in vapors of supersatured alcohol—water mixtures. The nanoscopic droplets forming in such vapors have highly curved surfaces, making their surface tension very different from that of …
In a letter in Phys. Rev. Lett., we address the challenges of binary nucleation Read More »
Our article entitled Comparing exergy losses and evaluating the potential of catalyst-filled plate-fin and spiral-wound heat exchangers in a large-scale Claude hydrogen liquefaction process has been published in the International Journal of Hydrogen Energy. In the article, we determine detailed heat exchanger designs by matching intermediate temperatures in a large-scale Claude refrigeration process for liquefaction of hydrogen …
New article on the heat exchangers of a large-scale hydrogen liquefaction process Read More »
Three of our recent articles are now on the list of the most downloaded papers in the excellent journal Fluid Phase Equilibria: 1. Thermodynamic stability of droplets, bubbles and thick films in open and closed pores 2. Thermodynamic models to accurately describe the PVTxy-behavior of water/carbon dioxide mixtures 3. The spinodal of single- and multi-component fluids …
Three articles on the most downloaded list in Fluid Phase Equilibria Read More »
The competence building project “PredictCUI: Prediction of water liquid and vapour migration for mitigating corrosion under insulation” received funding by the Norwegian Research Council. Here, I will in collaboration with Prof. Alex Hansen from NTNU/Porelab, researchers from SINTEF Energy Research and the industry deal with one of the major challenges at the Norwegian Continental Shelf, …
New project granted on moisture migration through porous media Read More »
Our article entitled Tolman lengths and rigidity constants from free-energy functionals—General expressions and comparison of theories has been published in the Journal of Chemical Physics. The leading order terms in a curvature expansion of surface tension, the Tolman length (first order), and rigidities (second order) have been shown to play an important role in the description of …