Institutt for maskin- og marinfag: Nye registreringer
Viser treff 61-80 av 365
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Microstructural and interface properties of aluminium alloy coatings on alumina applied by friction surfacing
(Peer reviewed; Journal article, 2023)Two large groups of materials, namely metals and ceramics, are used in mass quantities in today’s industry because of their outstanding properties. To achieve higher product performance dissimilar materials need to be ... -
Hydrodynamic modelling of a multi-body wave energy converter using the Moving Frame Method
(Peer reviewed; Journal article, 2023)Significant wave energy conversion may be achieved with multiple floats with several modes of motion combining constructively to generate power. With the M4 system, power take off is at hinges to absorb resulting pitch ... -
Linear Modelling of the Mass Balance and Energy Demand for a Recirculating Aquaculture System
(Peer reviewed; Journal article, 2023)This work seeks to understand the predominant drivers affecting energy demand for a recirculating aquaculture system (RAS) by developing a numerical model in Matlab coupled with Aspen HYSYS and validating against measurement ... -
A new method to determine the added mass of two- dimensional objects in potential flow.
(Peer reviewed; Journal article, 2022)The random walk source model is a displacement model where particles coming out of a source are displacing neighbor particles. The deformation of particle fronts moving towards objects carry the information about the fluid ... -
Influence of Particle Size Distribution on the Optical Properties of Fine-Dispersed Suspensions
(Peer reviewed; Journal article, 2022)Nanofluids have great potential for solar energy harvesting due to their suitable optical and thermophysical properties. One of the promising applications of nanofluids is utilization in solar collectors with the direct ... -
Hybrid Nanofluid in a Direct Absorption Solar Collector: Magnetite vs. Carbon Nanotubes Compete for Thermal Performance
(Peer reviewed; Journal article, 2022)The paper presents the experimental measurements of thermal efficiency of a tubular direct absorption solar collector (DASC) with a hybrid nanofluid based on magnetite (Fe3O4) and multi-walled carbon nanotubes (MWCNT). The ... -
The Influence of Oil Contamination on Flow Control Valve Operation
(Peer reviewed; Journal article, 2022)This study presents CFD simulations of the flow of contaminated oil inside a control valve to investigate the influence of solid contaminants on the valve operational features. The Euler-Lagrange approach has been used to ... -
Repurposing steel press production lines for hot formed high-strength aluminium automotive body components
(Peer reviewed; Journal article, 2022)Climate change and normative requirements are forcing car manufacturers to make their products ever lighter despite the highest safety requirements. For this case study a high-strength EN AW-7075 alloy is used as an example ... -
Lab-scale measurements of wind farm blockage effects
(Peer reviewed; Journal article, 2022)The inflow an individual wind turbine experiences in a farm layout is strongly dependent on flow interaction effects with the turbines surrounding it. In addition to the well-known wake flows, lateral and upstream flow ... -
Mechanical and Microstructural Analysis of Friction Surfaced Aluminum Coatings on Silicon Nitride Ceramic Substrates
(Peer reviewed; Journal article, 2022)The lack of suitable techniques for joining Si3N4 ceramics with metals has limited the usage of this otherwise outstanding material for composite applications. In this study, aluminum AlMgSi0.5 (EN AW-6060) was coated onto ... -
Fast moving smoldering fronts in thin liquid fuel films dispersed on inert porous media
(Peer reviewed; Journal article, 2022)An experimental study of smoldering in thin layers of pyrolysis oil on an inert substrate of calcium silicate boards has been conducted. The smoldering fronts propagated with velocities up to 0.4 mm/s, which is significantly ... -
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 ... -
Testing av tannhjulspumper
(Bachelor thesis, 1999)Rapporten presenterer resultatene av testing av fire forskjellige kombinasjoner av tannhjulspumper med likestrømsmotorer for Delta Pumpefabrikk A/S. Det er fire typer problemstillinger som er tatt opp: 1. Hvordan gangtiden ... -
CFD estimation of a resistance coefficient for an egg-shaped geometric dome
(Peer reviewed; Journal article, 2022) -
Forslag til drivstoffsystem for lavutslippsfartøy
(Bachelor thesis, 2022) -
Flow loop study of a cold and cohesive slurry. Pressure drop and formation of plugs
(Peer reviewed; Journal article, 2022) -
Numerical simulations of the sliding impact between an ice floe and a ship hull structure in ABAQUS
(Peer reviewed; Journal article, 2022)This paper studies the hull structural responses of a steel grillage subjected to sliding ice loads, which have been rarely investigated in the literature. Sliding ice loads are modelled using nonlinear finite element ... -
Photothermal conversion of biodegradable fluids and carbon black nanofluids
(Peer reviewed; Journal article, 2022)The paper is devoted to the topic of direct absorption solar collectors (DASCs). Various kinds of fluids can be used as heat transfer fluid in DASCs, and the main focus of our paper is on comparing nanofluids (water with ... -
Friksjonstesting av kontaktmaterialer i subsea clamps
(Bachelor thesis, 2022) -
Autonomous Aviation Refuelling System “The Game Changer”
(Bachelor thesis, 2022)