Blar i Institutt for maskin- og marinfag på dokumenttype "Peer reviewed"
Viser treff 1-20 av 85
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The application of the coupled acoustic-structural approach (CASA) method on the free vibration of submerged structures
(Peer reviewed; Journal article, 2023)Traditionally, the consideration of the surrounding water during the modal analysis of submerged structures has been done by applying constant added mass factors. This method may lose its accuracy for complicated structures, ... -
Assessing drivers of export orientation in the subsea oil and gas industry
(Peer reviewed; Journal article, 2015) -
Biowaste to hydrogen or Fischer-Tropsch fuels by gasification – A Gibbs energy minimisation study for finding carbon capture potential and fossil carbon displacement on the road
(Journal article; Peer reviewed, 2020)To reach its greenhouse gas emission reduction goals, Norway needs a shift away from the use of fossil fuels in the transport sector. The production potential and efficiency of Fischer-Tropsch biofuels and hydrogen from ... -
CFD estimation of a resistance coefficient for an egg-shaped geometric dome
(Peer reviewed; Journal article, 2022) -
CFD-DEM model of plugging in flow with cohesive particles
(Peer reviewed; Journal article, 2023)Plugging in flows with cohesive particles is crucial in many industrial and real-life applications such as hemodynamics, water distribution, and petroleum flow assurance. Although probabilistic models for plugging risk ... -
Cluster renewal and the heterogeneity of extra-regional linkages: a study of MNC practices in a subsea petroleum cluster
(Peer reviewed; Journal article, 2017) -
Co-located deployment of offshore wind turbines with tidal stream turbine arrays for improved cost of electricity generation
(Journal article; Peer reviewed, 2019)This paper evaluates the potential for co-location of offshore wind turbines at sites being developed for tidal stream arrays as a method for reducing the cost of electricity. It is shown that for a typical tidal site, ... -
Co-located offshore wind and tidal stream turbines: Assessment of energy yield and loading
(Peer reviewed; Journal article, 2018) -
Cohesive collisions of particles in liquid media studied by CFD-DEM, video tracking, and Positron Emission Particle Tracking
(Peer reviewed; Journal article, 2023)This paper investigates the cohesive collision of ice in an oil phase at temperatures ranging from −15.7 °C to −0.3 °C. The new information on the coefficient of restitution (COR) was obtained using three different velocity ... -
A comparison of extreme mooring loads and response of a spar-buoy wind turbine using conditional waves
(Peer reviewed; Journal article, 2023)Three-hour random sea-state evaluations for ultimate limit state design of floating offshore wind installations are time-consuming and prevent the use of high-fidelity numerical methods from being implemented. In this work, ... -
Comparison of organic Rankine cycle concepts for recovering waste heat in a hybrid powertrain on a fast passenger ferry
(Journal article; Peer reviewed, 2018)The possibilities of recovering waste heat from the exhaust gas and other waste heat sources from a 900 kW fast passenger ferry Diesel engine by means of an organic Rankine cycle (ORC) were investigated. The recovered ... -
Computaions of a Bluff-Body Stabilised Premixed Flames Using ERN Method
(Peer reviewed; Journal article, 2022)Combustible carbon-based energy is still prevailing as the world’s leading energy due to its high energy density. However, the oxidation of these hydrocarbons disturbs the natural carbon cycle greatly by increasing greenhouse ... -
Computational study of the dissolution of cellulose into single chains: the role of the solvent and agitation
(Peer reviewed; Journal article, 2022)We investigate the dissolution mechanism of cellulose using molecular dynamics simulations in both water and a mixture solvent consisting of water with Na+, OH− and urea. As a first computational study of its kind, we apply ... -
Computational Study of Two-Phase Flow Morphology in a Nozzle
(Journal article; Peer reviewed, 2018)Multiphase flow meters are widely used in nuclear, petroleum and chemical industries. Here the flow rate is defined indirectly by the differential pressure measurement over the device. An additional measurement is required ... -
A concept of risk prioritization in FMEA analysis for fluid power systems
(Peer reviewed; Journal article, 2021)FMEA analysis is a tool of quality improvement that has been widely used for decades. Its classical version prioritizes risk of failure by risk priority number (RPN). The RPN is a product of severity (S), occurrence (O), ... -
Direct absorption solar collector: Use of nanofluids and biodegradable colloids
(Peer reviewed; Journal article, 2023)In this paper, an experimental and numerical analysis was performed on both carbon black nanofluids and a biodegradable fluid in a novel pump-free direct absorption solar collector (DASC). In the experiments, the nanofluid ... -
Dynamic analysis and validation of a multi-body floating wind turbine using the moving frame method
(Peer reviewed; Journal article, 2023)This research applies the moving frame method (MFM) to the multi-body dynamic analysis of an OC3 phase IV spar buoy with the NREL 5MW turbine. Further, it verifies previous results obtained through numerical comparisons ... -
Eco-friendly and low-cost nanofluid for direct absorption solar collectors
(Peer reviewed; Journal article, 2023)Nanofluids are promising receivers for solar collectors with volumetric absorption. These solar collectors are 1.2…1.4 times more efficient than conventional technology. However, most of the considered nanofluids are ... -
Eulerian CFD model of direct absorption solar collector with nanofluid
(Peer reviewed; Journal article, 2020)Solar energy is the most promising source of renewable energy. However, the solar energy harvesting process has relatively low efficiency, while the practical use of solar energy is challenging. Direct absorption solar ... -
Experimental and numerical investigation of direct absorption solar collectors (DASCs) based on carbon black nanofluids
(Peer reviewed; Journal article, 2023)Direct absorption solar collectors (DASCs) typically achieve high efficiency due to the volumetric heat absorption process facilitated by the working fluids. In this study, carbon black (CB) nanofluids were utilized as the ...