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An experimental study of an ejector-boosted transcritical R744 refrigeration system including an exergy analysis
(Peer reviewed; Journal article, 2021)The field of refrigeration witness a massive transition in the supermarket with a strong focus reflected on energy consumption. The use of ejector allows for overcoming the significant exergy destruction lays on the expansion ... -
Experimental Study of Clamping Pressure during Step Loading of Power Transformer with and without Prior Energisation
(Peer reviewed; Journal article, 2024)The electrification of society, increasing renewable energy sources and mobility charging lead to new loading patterns for power transformers. Dynamic load conditions induce enhanced mechanical stress on the transformers’ ... -
Experimental study of electrocoalescence of water drops in crude oil using near-infrared camera
(Journal article; Peer reviewed, 2015)Results are presented concerning the influence of an applied electric field on the coalescence of a water droplet with a much bigger water drop, both drops being immersed in a crude oil. This original study of electrocoalescence ... -
Experimental study of the heat transfer problem in expansion devices in CO2 refrigeration systems
(Journal article; Peer reviewed, 2019)Two expansion devices designed for CO2 refrigeration systems namely, capillary tube and fixed-geometry ejector were experimentally tested in the SINTEF/NTNU laboratory in Trondheim, Norway to determine the influence of ... -
Experimental study on a CO2-solid-gas-flow-based ultra-low temperature cascade refrigeration system
(Journal article; Peer reviewed, 2011) -
Experimental Study on Charcoal Production from Woody Biomass
(Journal article; Peer reviewed, 2016)In the present work, effects of process conditions on char and fixed carbon yields from four woody biomasses were studied. The influence of the particle size, sample mass, and pressure on experimental values of char and ... -
Experimental study on high pressure combustion of decomposed ammonia: How can ammonia be best used in a gas turbine?
(Chapter; Peer reviewed, 2021)Hydrogen, a carbon-free fuel, is a challenging gas to transport and store, but that can be solved by producing ammonia, a worldwide commonly distributed chemical. Ideally, ammonia should be used directly on site as a fuel, ... -
Experimental study on the effect of pressure on single and two stage combustion of decomposed ammonia (NH3-H2-N2) blends over a swirl stabilized burner
(Peer reviewed; Journal article, 2024)Ammonia (NH3) is a practical hydrogen vector for gas turbine power generation, but struggles to be deployed commercially due to many unresolved technical and fundamental challenges. This experimental investigation focuses ... -
Experimental study on the effect of soil moisture content on critical temperature rise for typical cable backfill materials
(Peer reviewed; Journal article, 2022)The increased utilization of power grid requires operating power cables close to their thermal limit. Buried power cables in such condition experience thermal instability where thermal resistance increases as the moisture ... -
Experiments and modelling of choked flow of CO2 in orifices and nozzles
(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, ... -
Experiments and modelling of two-phase transient flow during pipeline depressurization of CO2 with various N2 compositions
(Journal article; Peer reviewed, 2014)Pressure-release experiments of CO2 with impurity contents of 10, 20 and 30 mol% nitrogen have been executed. The experimental investigations were performed in a 140 m long horizontal tube with an inner diameter of 10 mm. ... -
Expert Elicitation on Wind Farm Control
(Peer reviewed; Journal article, 2020)Wind farm control is an active and growing field of research in which the control actions of individual turbines in a farm are coordinated, accounting for inter-turbine aerodynamic interaction, to improve the overall ... -
Exploring household's flexibility of smart shifting atomic loads to improve power grid operation and cost efficiency
(International Conference on the European Energy Market;2020, Chapter; Peer reviewed, 2020)This paper explores the possibilities of shifting certain household consumer-based loads in time, to reduce unnecessary load peaks to the grid which again can cause challenges for Distribution System Operators (DSOs). ... -
Exploring the link between the EU emissions trading system and net-zero emission neighbourhoods
(Peer reviewed; Journal article, 2023)Climate policy is transforming the energy system and the building sector. Since these sectors overlap, we need to understand how the short-term operational link between them impact their long-term development subject to ... -
Exploring the Potential for Increased Production from the Wave Energy Converter Lifesaver by Reactive Control
(Journal article; Peer reviewed, 2013) -
Exploring the potential for waste heat recovery during metal casting With thermoelectric generators: On-site experiments and mathematical modelling
(Journal article; Peer reviewed, 2016) -
Exploring the technical feasibility of carbon capture onboard ships
(Peer reviewed; Journal article, 2024) -
An exponential time-differencing method for monotonic relaxation systems
(Peer reviewed; Journal article, 2014)We present first and second-order accurate exponential time differencing methods for a special class of stiff ODEs, denoted as monotonic relaxation ODEs. Some desirable accuracy and robustness properties of our methods are ... -
Extreme Overheating in Self-regulating Heating Cables - This report is an translation of Technical Report TR A5784
(SINTEF Rapport;, Research report, 2004) -
Fabrication of a scaled MgB2 racetrack demonstrator pole for a 10 MW direct drive wind turbine generator
(Journal article; Peer reviewed, 2018)Field windings made of MgB2 wires or tapes are considered for their potential to reduce volume, weight and cost of large offshore wind turbine generators. To gain experience of how to use this relatively new material in ...