Fakultet for ingeniørvitenskap (IV): Nye registreringer
Viser treff 401-420 av 23256
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Energy-related occupant behavior in buildings: Approaches for monitoring and modelling
(Doctoral theses at NTNU;2024:171, Doctoral thesis, 2024)Buildings have become one of the most energy-intensive sectors globally, contributing to about one-third of the worldwide energy consumption. The response to growing global concerns regarding energy-use has prompted the ... -
Simulating emergency response for large-scale fish welfare emergencies in sea-based salmon farming
(Journal article; Peer reviewed, 2022)This paper presents a simulation model for analyzing emergency response for fish welfare emergencies in sea-based fish farming. The model enables decision-makers to evaluate the emergency preparedness level against incidents ... -
Digital Twins for Fault Prognosis in Offshore Wind Turbine Drivetrains
(Doctoral theses at NTNU;2024:178, Doctoral thesis, 2024)This thesis investigates the relatively novel concept of Digital Twin (DT) in the context of offshore wind turbine drivetrains. DT can be described as a virtual representation of a system or asset that calculates system ... -
Comparative Life Cycle Assessment of Sustainable Aviation Fuels: Country-based study of Alcohol-to-Jet Pathways at the European level
(Master thesis, 2024)Luftfartsindustrien, som står for 2 % av de menneskeskapte utslippene, står overfor utfordringen med å oppnå netto nullutslipp innen 2050. Den internasjonale organisasjonen for sivil luftfart (ICAO) understreker viktigheten ... -
Design Research on Cargo Loading and Unloading for Unmanned Surface Vessels
(Master thesis, 2024)Skipsteknologiens pågående utvikling mot å bli mer autonom har medført økt global oppmerksomhet, og en bredere innføring innen maritim transport. Den voksende interessen for Unmanned Surface Vehicles (USV) og mulighetene ... -
Assessment of alternative concepts for improved gas turbine operation under varying loads in decarbonized energy systems
(Doctoral theses at NTNU;2024:120, Doctoral thesis, 2024)This thesis is devoted to the assessment of alternative concepts for improved gas turbine operation under varying loads in decarbonized energy systems. The aim is to contribute towards curbing the emission of Carbon Dioxide ... -
A phase-time-path-difference approach for online wave direction and wave number estimation from measured ship motions in zero and forward speed using a single inertial measurement unit
(Journal article; Peer reviewed, 2023)This study investigates the potential capability of a relatively new and unexplored signal-based approach for shipboard wave estimation. The approach uses the phase-time-path-differences (PTPDs) from an array of shipboard ... -
Decision support methods for optimizing subsea hydrocarbon production systems with processing equipment
(Doctoral theses at NTNU;2024:111, Doctoral thesis, 2024)As the use of subsea processing increases and technology advances, subsea layout possibilities and configurations diversify and get more complex, causing manual design processes to be cumbersome and often suboptimal. ... -
Circular economy strategies for reducing carbon emissions in construction: A case study of reused materials in the design and construction of a storage in Granåsen
(Master thesis, 2024)Overgangen fra en lineær til en sirkulær økonomi er avgjørende for å redusere globale klima- gassutslipp. Denne masteroppgaven undersøker potensialet og miljøpåvirkningen av ombruk av bygningskomponenter i den norske bygge- ... -
Design and eco-technoeconomic analysis of a natural gas cogeneration energy management center (EMC) with short-term thermal storage
(Journal article; Peer reviewed, 2024)This work proposes a non-islanded cogeneration energy management center (EMC) that can be used to displace grid-level natural gas turbine systems and natural gas combustion systems for heat. The design of the proposed EMC ... -
Flow topology in the gap and wake of convex curved tandem cylinders
(Journal article; Peer reviewed, 2023)Flow around curved tandem cylinders in the convex configuration has been studied by means of direct numerical simulations, for a Reynolds number of 500 and a nominal gap ratio of 3.0. Spanwise variation of flow regimes, ... -
Asymmetric cellular bi-stability in the gap between tandem cylinders
(Peer reviewed; Journal article, 2023)In the gap region of tandem cylinders, within the reattachment regime, bi-stability is seen to be cellular. Direct numerical simulations at a Reynolds number of 500, and a gap ratio of 3.0, show that shedding of gap vortices ... -
The Influence of the Rake Angle on the Cutting of Low-Lead and Lead-Free Brass Alloys
(Chapter, 2023)Components manufactured from brass alloys are widely used in plumbing systems. Traditionally, lead is added to the alloy to improve the machinability. In recent years, the use of lead has been restricted due to health and ... -
Hydroelastic response of a flexible spar floating wind turbine: Numerical modelling and validation
(Journal article; Peer reviewed, 2023)This study examines the hydroelastic response of a large floating wind turbine (FWT) through coupled numerical analysis. Four numerical models with different levels of complexity in the hydrodynamic and structural modelling ... -
Overview of the potential of floating wind in Europe based on met-ocean data derived from the ERA5-dataset
(Journal article; Peer reviewed, 2023)This paper provides an overview of the potential of floating wind in Europe. Wind and wave data from the ERA5 dataset as well as bathymetry data are analysed to identify regions suitable for floating wind deployment. The ... -
Green Smart Port Energy System Design: Optimal Sizing
(Journal article; Peer reviewed, 2023)The paper proposes an optimal sizing methodology for a green smart port with the presence of renewable energy resources and two energy carriers: electricity and hydrogen. The problem solution provides the optimal size of ... -
Load model for enhanced fatigue life estimation of Norwegian railway bridges: calibration, application, and uncertainties
(Doctoral theses at NTNU;2024:149, Doctoral thesis, 2024)The railway transportation is a crucial component of transportation infrastructure, known for its high capacity, environmental friendliness, and reliability. Despite requiring substantial initial investments, railway ... -
Analytic Gradients Based Parametric Optimization using CutFEM
(Master thesis, 2023)Denne avhandlingen presenterer en metodikk for å beregne analytisk deriverivasjoner av visse mekaniske egenskaper, for eksempel eksempel stivhetsmatrisen, med hensyn til parametrene som definerer geometrien, for eksempel ... -
Investigating Emergency Room Operations: A System for Tracking Movements, Monitoring Stress, and Assessing Equipment
(Master thesis, 2024)Denne masteroppgaven undersøker anvendelsen av Industri 4.0-teknologier for å forbedre effektiviteten og arbeidsmiljøet ved akuttmottaket på St. Olavs Hospital i Trondheim. Oppgaven er motivert av direkte forespørsl fra ... -
Limitation of damage from overburden drilling for piles and tieback anchors
(Doctoral theses at NTNU;2024:175, Doctoral thesis, 2024)Several cases with unexpected damages related to excessive ground movements induced by initial and secondary effects from overburden drilling to install tieback anchors and piles from inside deep excavations were observed ...