Browsing SINTEF Open by Author "Austegard, Anders"
Now showing items 1-20 of 22
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Condensation heat transfer of CO2 on Cu based hierarchical and nanostructured surfaces
Snustad, Ingrid; Hollund, Lene; Ervik, Åsmund; Austegard, Anders; Brunsvold, Amy; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2021)Phase-change processes such as condensation are efficient means of heat transfer. However, condensation is also an energy-intensive process and extensive research is conducted to increase the heat transfer efficiency. ... -
Depressurization of CO2 in a pipe: Effect of initial state on non-equilibrium two-phase flow
Log, Alexandra Metallinou; Hammer, Morten; Deng, Han; Austegard, Anders; Hafner, Armin; Munkejord, Svend Tollak (Peer reviewed; Journal article, 2023)It is key in several industrial applications to accurately describe rapid depressurization of liquid and dense phase states. Examples include refrigeration systems, nuclear reactor cooling and capture and storage (CCS). ... -
Depressurization of CO2 in a pipe:High-resolution pressure and temperature data and comparison with model predictions
Munkejord, Svend Tollak; Austegard, Anders; Deng, Han; Hammer, Morten; Stang, Hans Georg Jacob; Løvseth, Sigurd Weidemann (Peer reviewed; Journal article, 2020)The design of safe and cost-efficient CO2-transportation systems is an integral part of CO2 capture and storage (CCS) deployment. To achieve this, accurate transient flow models capturing the occurrence of gas, liquid and ... -
Depressurization of CO2-N2 and CO2-He in a pipe: Experiments and modelling of pressure and temperature dynamics
Munkejord, Svend Tollak; Deng, Han; Austegard, Anders; Hammer, Morten; Aasen, Ailo; Skarsvåg, Hans Langva (Peer reviewed; Journal article, 2021) -
Efficient Liquefaction of Carbon Dioxide on Superlyophobic Surfaces
Snustad, Ingrid; Ervik, Åsmund; Austegard, Anders; Reigstad, Gunhild Allard; He, Jianying; Zhang, Zhiliang; Brunsvold, Amy (Journal article, 2019) -
Experiments and modelling of choked flow of CO2 in orifices and nozzles
Hammer, Morten; Deng, Han; Austegard, Anders; Log, Alexandra Metallinou; Munkejord, Svend Tollak (Peer reviewed; Journal article, 2022)In order to accelerate the deployment of capture and storage (CCS), engineers need experimentally validated models, among other things, to predict the mass flow rate in process equipment and flow restrictions like valves, ... -
Heat transfer characteristics of CO2 condensation on common heat exchanger materials, method development and experimental results
Snustad, Ingrid; Ervik, Åsmund; Austegard, Anders; Brunsvold, Amy; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2021)Understanding condensation of CO2 is essential for e.g designing compact heat exchangers or processes involved in Carbon Capture and Storage. However, a consistent experimental campaign for condensation of CO2 on common ... -
Measurements of the Viscosity of Hydrogen and a (Hydrogen + Methane) Mixture with a Two-Capillary Viscometer
Betken, Benjamin; Austegard, Anders; Finotti, Francesco; Caccamo, Chiara; Stang, Hans Georg Jacob; Khosravi, Bahareh; Span, Roland (Peer reviewed; Journal article, 2024)Measurements of the viscosity of pure hydrogen and a binary (hydrogen + methane) mixture with a nominal composition 90 mol % hydrogen are presented. The measurements were conducted with a two-capillary viscometer relative ... -
Need and Measurements of Accurate Thermodynamic Data for CCS
Løvseth, Sigurd Weidemann; Westman, Snorre Foss; Austegard, Anders; Stang, Hans Georg Jacob (Journal article, 2019) -
New and accurate thermodynamic property data of CO2-EGS relevant working fluids with data
Stang, Hans Georg Jacob; Austegard, Anders; Jooss, Yannick; Szymanek, Maciej; Sowizdzal, Anna (Peer reviewed; Journal article, 2024)The article presents a new setup for the accurate measurements of the phase behaviour of CO2 mixtures relevant to CCS as well as a CO2-H2O working fluid for EGS, designed to cover the temperature range from -60 to 200 °C ... -
A new facility for viscosity and density measurements for CO2 – rich mixtures relevant for CO2 transport and storage
Khosravi, Bahareh; Austegard, Anders; Stang, Hans Georg Jacob; Einen, Caroline; Jakobsen, Jana Poplsteinova; Snustad, Ingrid; Løvseth, Sigurd Weidemann (Journal article, 2022)For safe and cost-effective design, optimization, and operation of CO2 capture, transport, and storage (CCS) processes, accurate viscosity and density data of CO2-rich mixtures are required. Currently, there are large ... -
A New Facility on Accurate Viscosity and Density Measurements
Khosravi, Bahareh; Løvseth, Sigurd W.; Austegard, Anders; Einen, Caroline; Stang, H. G.Jacob; Snustad, Ingrid; Jakobsen, Jana P.; Rekstad, Håvard (SINTEF Proceedings;7, Chapter; Peer reviewed; Conference object, 2021)A new facility for accurate measurement of viscosity and density of CO2-rich mixtures relevant for CO2 Capture and Storage (CCS) has been constructed. The facility includes a two-capillary viscometer with several novel ... -
Preliminary study, Power for running pumps in Taveta city, Kenya
Austegard, Anders (SINTEF Energi. Rapport;TR A7434, Research report, 2014)Taveta Town in Kenya is a friendship city of Melhus municipal. The power for running a water supply is investigated. Hydropower was found not to be suitable, so a solar power plant of 200 kW (giving 200 kW at the centre ... -
Thermo- and fluid-dynamical modelling of two-phase multi-component carbon dioxide mixtures
Munkejord, Svend Tollak; Jakobsen, Jana Poplsteinova; Austegard, Anders; Mølnvik, Mona J. (Journal article; Peer reviewed, 2010) -
Thermodynamics of the carbon dioxide plus argon (CO2+ Ar) system: An improved reference mixture model and measurements of vapor-liquid, vapor-solid, liquid-solid and vapor-liquid-solid phase equilibrium data at the temperatures 213–299 K and pressures up to 16 MPa
Løvseth, Sigurd Weidemann; Austegard, Anders; Westman, Snorre Foss; Stang, Hans Georg Jacob; Herrig, Stefan; Neumann, Tobias; Span, Roland (Journal article; Peer reviewed, 2018)Phase equilibrium behavior of the carbon dioxide and argon system has been investigated at the temperatures 213, 223, 243, 263, 273, 283, and 299 K. The full vapor-liquid equilibria phase envelope has been measured at all ... -
Thermodynamics of the carbon dioxide plus nitrogen plus methane (Co2 + N2 + Ch4) system: Measurements of vapor-liquid equilibrium data at temperatures from 223 to 298 K and verification of EOS-CG-2019 equation of state
Ottøy, Sindre; Neumann, Tobias; Stang, Hans Georg Jacob; Jakobsen, Jana Poplsteinova; Austegard, Anders; Løvseth, Sigurd Weidemann (Journal article; Peer reviewed, 2019)Vapor-liquid equilibria (VLE) data of the ternary mixture of CO2 + N2 + CH4 were measured at the isotherms 223 K, 253 K, 273 K, 283 K, and 298 K and for pressures in the range of 0.8 MPa–9.3 MPa. The 62 experimental dew ... -
Towards a thorough Validation of Simulation Tools for CO2 Pipeline Transport
Drescher, Michael; Fahmi, Adil; Aursand, Peder; Hammer, Morten; Lund, Halvor; Stang, Hans Georg Jacob; Austegard, Anders (Journal article; Peer reviewed, 2017)In this work the Schlumberger flow assurance tool OLGA and SINTEF Energy Research in-house CFD tool are assessed for their ability to describe depressurization behaviour of CO2 pipelines. For this purpose, three full-bore ... -
Vapor - liquid equilibrium of the carbon dioxide/methane mixture at three isotherms
Petropoulou, Eirini; Voutsas, Epaminondas; Westman, Snorre Foss; Austegard, Anders; Stang, Hans Georg Jacob; Løvseth, Sigurd Weidemann (Journal article; Peer reviewed, 2018) -
Vapor-liquid equilibrium data for the carbon dioxide and carbon monoxide (CO2 + CO) system at the temperatures 253, 273, 283 and 298 K and pressures up to 13 MPawq32e
Westman, Snorre Foss; Austegard, Anders; Stang, Hans Georg Jacob; Løvseth, Sigurd Weidemann (Journal article; Peer reviewed, 2018)Vapor-liquid equilibrium measurements for the binary system CO2 + CO are reported at 253, 273, 283 and 298 K, with estimated standard uncertainties of maximum 9 mK in temperature, maximum 3 kPa in pressure, and maximum ... -
Vapor-liquid equilibrium data for the carbon dioxide and nitrogen (CO2+N2) system at the temperatures 223, 270, 298 and 303 K and pressures up to 18 MPa
Westman, Snorre Foss; Stang, Hans Georg Jacob; Løvseth, Sigurd Weidemann; Austegard, Anders; Snustad, Ingrid; Størset, Sigmund Østtveit; Ertesvåg, Ivar Ståle (Journal article; Peer reviewed, 2015)A new setup for the measurement of vapor-liquid phase equilibria of CO2-rich mixtures relevant for carbon capture and storage (CCS) transport conditions is presented. An isothermal analytical method with a variable volume ...