Institutt for maskin- og marinfag: Nye registreringer
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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, ... -
Field study of a direct absorption solar collector with eco-friendly nanofluid
(Peer reviewed; Journal article, 2024)The concept of direct absorption solar collector (DASC) was introduced in the 1970s. Multiple laboratory studies proved that nanofluid-based DASCs presented a fruitful alternative to conventional solar collectors. However, ... -
A CONTRIBUTION TO THE CURRENT DEBATE ABOUT THE ADEQUACY OF THE LINEAR-NO-THRESHOLD (LNT) MODEL FOR THE RISK RESULTING FROM RADON EXPOSURE
(Journal article, 2023)The Linear-No Threshold Hypothesis (LNT) states that risk from ionizing radiation is linearly related to dose with no dose threshold below which there was no risk. The LNT is an important fundament in practical radioprotection ... -
Grid Turbulence Measurements With an Acoustic Doppler Current Profiler
(Peer reviewed; Journal article, 2024)The motivation for this study is to investigate the abilities and limitations of a Nortek Signature1000 acoustic Doppler current profiler (ADCP) regarding fine-scale turbulence measurements. Current profilers offer the ... -
Viscosity of ice-in-oil slurries
(Peer reviewed; Journal article, 2023)Ice slurries are phase change materials extensively used in refrigeration technology. This work describes an experimental study and empirical modeling that was carried out to characterize the rheological behavior of ... -
Human-Centred Autonomous Shipping
(Book, 2023)Tracing the development of autonomous and automated shipping from a hype of unmanned ships to a more realistic use of automation to augment humans in maritime operations, this book shows why human factors and human-centred ... -
Fault detection of a wind turbine generator bearing using interpretable machine learning
(Peer reviewed; Journal article, 2023)During its operational lifetime, a wind turbine is subjected to a number of degradation mechanisms. If left unattended, the degradation of components will result in its suboptimal performance and eventual failure. Hence, ... -
Layout and yaw optimisation of an offshore wind farm through analytical modelling
(Peer reviewed; Journal article, 2023)In this work, a computational tool for analytical large scale modelling of offshore wind farms is presented. Using Horns Rev 1 as a reference baseline, an optimal layout and yaw angle setting for one wind direction based ... -
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, ... -
A Kinematic Variable for Analyzing Snake Robot Dynamics
(Peer reviewed; Journal article, 2024)This paper presents a modern mathematical method to analyze snake robot dynamics. The method is rooted in three facets of contemporary mathematics: Cartan’s concept of endowing all moving bodies with their own reference ... -
Saved by hydrogen? The public acceptance of onshore wind in Norway
(Peer reviewed; Journal article, 2023)Achieving the green energy transition is not without difficulty. This is also the case for the deployment of renewable energy infrastructures. Among these, onshore wind has often been contested. Taking the case of Norway ... -
Safety of Autonomous Navigation: A Study on Safety Challenges for Maritime Autonomous Surface Ships, Safe Speed, and Work as Done by Navigators
(Doctoral thesis, 2023)Throughout human history, technological innovation has been an important driver for enhancing human living standards. In the maritime industry, one such technological innovation is the maritime autonomous surface ship ... -
Experiments on the wake flow behind different configurations of multirotor wind turbines
(Peer reviewed; Journal article, 2023)Multirotor wind turbine concepts have recently emerged as a promising alternative to conventional turbines. When arranged in farms, the wake flow behind multirotor assemblies becomes an important factor in the cost-of-energy ... -
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 ... -
Visualization of Unsteady Flow in a Multistage Helico-Axial Pump
(Journal article, 2023)Helico-axial pumps are designed to pump mixtures of gas and liquid. Secondary flows and rotor-stator interactions are known to add complexity to the flow field in unshrouded axial-flow turbomachinery. Here we use a high-speed ... -
RCM program for a well intervention tool – Below packer safety joint
(Bachelor thesis, 2023) -
Konstruksjon og testing av en 1:100 skalamodell av INO WINDMOOR 12 MW flytende vindturbin
(Bachelor thesis, 2023) -
Eksperimentell hydrodynamisk testing av en USV-modell
(Bachelor thesis, 2023) -
Numerical investigation of direct absorption solar collectors based on carbon black nanofluids
(Peer reviewed; Journal article, 2023)A novel model of a rectangular direct absorption solar collector (DASC) based on carbon black (CB) nanofluids for concentrated solar power is presented herein. Distributions of temperature, velocity, volume fraction of ...