Browsing Institutt for kjemi by Author "Aasen, Ailo"
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Bulk and interfacial thermodynamics of ammonia, water and their mixtures
Aasen, Ailo; Jervell, Vegard Gjeldvik; Hammer, Morten; Strøm, Bjørn; Skarsvåg, Hans Langva; Wilhelmsen, Øivind (Journal article; Peer reviewed, 2024)Bulk and interfacial thermodynamics of ammonia, water and their mixtures -
Choked liquid flow in nozzles: crossover from heterogeneous to homogeneous cavitation and insensitivity to depressurization rate
Wilhelmsen, Øivind; Aasen, Ailo (Peer reviewed; Journal article, 2021)The critical mass flow rate is the maximum flow rate that can pass through a constrained geometry such as a nozzle. For liquid CO2, it has been shown that homogeneous relaxation models systematically underpredict the ... -
A comparative study of experiments and theories on steady-state evaporation of water
Rauter, Michael Tobias; Aasen, Ailo; Kjelstrup, Signe Helene; Wilhelmsen, Øivind (Journal article, 2022)A precise description of energy and mass transport across the liquid-vapor interface of water is central in dis- ciplines spanning from climatology to seawater desalination. We present a critical assessment of six recent ... -
Equation of state for confined fluids
Bråten, Vilde; Zhang, Daniel Tianhou; Hammer, Morten; Aasen, Ailo; Schnell, Sondre Kvalvåg; Wilhelmsen, Øivind (Peer reviewed; Journal article, 2022)Fluids confined in small volumes behave differently than fluids in bulk systems. For bulk systems, a compact summary of the system's thermodynamic properties is provided by equations of state. However, there is currently ... -
Free energy of critical droplets - From the binodal to the spinodal
Aasen, Ailo; Wilhelmsen, Øivind; Hammer, Morten; Reguera, David (Peer reviewed; Journal article, 2023)Arguably, the main challenge of nucleation theory is to accurately evaluate the work of formation of a critical embryo in the new phase, which governs the nucleation rate. In Classical Nucleation Theory (CNT), this work ... -
One-dimensional mathematical modeling of two-phase ejectors: Extension to mixtures and mapping of the local exergy destruction
Wilhelmsen, Øivind; Aasen, Ailo; Banasiak, Krzysztof; Herlyng, Halvor; Hafner, Armin (Peer reviewed; Journal article, 2022)The ejector is a process equipment frequently used in refrigeration processes. There is currently a knowledge gap on the efficiency of ejectors operating with mixtures. To address this knowledge gap, we present a one-dimensional ... -
Thermodynamic properties of the 3D Lennard-Jones/spline model
Hafskjold, Bjørn; Travis, Karl; Bailey, Amanda H.; Hammer, Morten; Aasen, Ailo; Wilhelmsen, Øivind (Peer reviewed; Journal article, 2019)In the Lennard-Jones spline (LJ/s) model, the Lennard-Jones (LJ) potential is truncated and splined so that both the pair potential and the force continuously approach zero at rc ≈ 1.74σ. It exhibits the same structural ...