testmaltby

Magnus Aa. Gjennestad successfully defends his PhD Tuesday, the 24th of November, Magnus Aashammer Gjennestad successfully defends his PhD, entitled: “Modelling of two-phase equilibrium, stability and steady-state flow in porous media”. The opponents of the defence were Prof. Professor Rainer Helmig from the Universität Stuttgart in Germany, Professor Luis González Macdowell from the Universidad Complutense in Spain …

Magnus Aa. Gjennestad successfully defends his PhD. Read More »

The paper entitled Dissecting the exergy balance of a hydrogen liquefier: Analysis of a scaled-up claude hydrogen liquefier with mixed refrigerant pre-cooling has just been accepted for publication in International Journal of Hydrogen energy. In the paper, we analyze in detail a hydrogen liquefier that is likely to be realisable without intermediate demonstration phases, and decomponse all …

In a new paper, we dissect the exergy balance of a large-scale hydrogen liquefaction process. Read More »

Vilde Bråten (PhD candidate) placed second in the national finale in the Norwegian Research Grand Prix, where researchers from universities all over the country presented their research in a way where it becomes possible to understand for the general population. Vilde did an amazing job in communicating in a simple manner a topic which is super-complex. …

Vilde Bråten presents nano-thermodynamics on national television. Read More »

Our paper entitled The influence of interfacial transfer and film coupling in the modeling of distillation columns to separate nitrogen and oxygen mixtures has been accepted for publication in the Journal of Chemical Engineering Science X (the open access version of J. Chem. Eng. Sci). Coupling between heat and mass transfer occurs across interfaces and vapor and …

In a new paper, we discuss the influence of coupling phenomena and interfacial transfer on the modelling of distillation columns. Read More »

Our paper entitled Accurate quantum-corrected cubic equations of state for helium, neon, hydrogen, deuterium and their mixtures has been published in Fluid Phase Equilibria. Cubic equations of state have thus far yielded poor predictions of the thermodynamic properties of quantum fluids such as hydrogen, helium and deuterium at low temperatures. In our paper, we derive temperature-dependent quantum …

In a new paper, we present quantum corrections for cubic EoS that dramatically improve their performance for hydrogen, helium, deuterium, neon and mixtures that contain these components. Read More »

Our paper entitled Nonequilibrium thermodynamics of surfaces captures the energy conversions in a shock wave has been published in the open access journal Chemical Physics Letters X. In the letter, we develop a theory for the entropy production in a shock wave using Gibbs’ excess properties in the framework of non-equilibrium thermodynamics (NET) of surfaces. The theory …

New paper shows that surface thermodynamics can be used on shock waves Read More »

Our paper entitled Ice formation and growth in supercooled water-alcohol mixtures: Theory and experiments with dual fiber sensors has just been published in Fluid Phase Equilibria. Increased knowledge on fluid-solid phase transitions is needed, both when they are undesired and can impair processes operation, and when strict control is required. In the paper, we present experimental results …

New paper on Ice formation and growth in alcohol mixtures Read More »

Diego Kingston successfully defends his PhD on energy efficient design and operation of process equipment such as chemical reactors and distillation columns. During his PhD, Diego had two research stays at PoreLab; a first period between March and May 2019, and a second period between September and November 2019. Under the supervision of myself and …

Diego Kingston successfully defends his PhD Read More »

The paper entitled Thermodynamic stability of volatile droplets and thin films governed by the disjoining pressure in open and closed containers has just been accepted for publication in Langmuir. Distributed thin films of water and their coexistence with droplets are investigated using a capillary description based on a thermodynamic fundamental relation for the film Helmholtz energy, derived …

New paper on the thermodynamics of thin films Read More »

The paper entitled Using Fiber-Optic Sensors to Give Insight into Liquid-Solid Phase Transitions in Pure Fluids and Mixtures, has just been accepted for publication in the journal entitled “Experimental Thermal and Fluid Science”. Fiber optic sensors offer a new and unique way to detect and analyze phase transitions, due to their small thermal mass and inert …

New paper on the use of fiber optic sensors to study phase transitions Read More »