Browsing Fakultet for ingeniørvitenskap (IV) by Title
Now showing items 201-220 of 23131
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A Comprehensive Thermal and Structural Transient Analysis of a Boiler’s Steam Outlet Header by Means of a Dedicated Algorithm and FEM Simulation
(Journal article; Peer reviewed, 2020)Increasing the share of renewables in energy markets influences the daily operation of thermal power units. High capacity power units are more frequently operated to balance power grids and, thus, steam boilers are exposed ... -
A computational approach to expose conversation dynamics in engineering design activities
(Journal article, 2017)In this paper, we apply a computational approach to expose conversation dynamics in design conversations. We apply this approach to a case study comprising of two sessions, with 300 speaker turns respectively. The resulting ... -
A Computational Study of Surface to Bed Heat Transfer and Reactive Flows in Gas Fluidized Beds
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:108, Doctoral thesis, 2010)This thesis presents the study of surface to bed heat transfer and reactive flows in dense phase gas-fluidized beds. The bulk of the thesis comprises of computational studies although some experimental work is also done ... -
A CONDITION BASED, RISK ANALYSIS AND LIFE CYCLE ORIENTED APPROACH FOR LIFE EXTENSION OF FPSO UNITS
(Master thesis, 2020)Denne masteroppgaven foreslår en metodikk for et FPSO livsforlengelsesprosjekt og tester den ut for et fiktivt fartøy. Metodikken er utviklet basert på at enhetens tekniske tilstand, restverdi, prosjektrisikoer og behov ... -
A consistent reduction of the two-layer shallow-water equations to an accurate one-layer spreading model
(Journal article; Peer reviewed, 2019)The gravity-driven spreading of one fluid in contact with another fluid is of key importance to a range of topics. These phenomena are commonly described by the two-layer shallow-water equations (SWE). When one layer is ... -
A Contractor's Experience of a Best Value Approach Project in Norway
(Master thesis, 2018)Most road construction projects in Norway use the Design-Bid-Build delivery method. In the Design-Bid-Build method the project owner goes into contract with a project designer that designs the project, before interested ... -
A contribution to reliability assessment of safety-instrumented systems
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:254, Doctoral thesis, 2013)Safety-instrumented systems (SISs) are among the most important and effective safety barriers in reducing the likelihood of hazardous events and/or mitigate their consequences to assets (humans, environment, and material ... -
A contribution to reliability qualification of new technical equipment: – with focus on subsea production equipment
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:334, Doctoral thesis, 2013)This PhD thesis proposes new frameworks and methods which give new insights to qualification and reliability assessments of new subsea systems. The subsea oil and gas industry is an industry with strict requirements to the ... -
A Control System for Autonomous Vehicles - Three-Dimensional Geometric Models from Pictures
(Master thesis, 2017)This master's thesis describes an experimental process of recreating geometric models from images. This process is thoroughly described using functionality already present in the geometric modelling tool GeoMod and ... -
A cooperative information system framework to support process management
(Doktoravhandlinger ved NTNU, 1503-8181; 122, Doctoral thesis, 2002)The implementation of process orientation at Aker Verdal was enhanced by a cooperative information system (CIS) that supported process management with the right information, at the right time, at the right place, etc. A ... -
A cost-effective approach to predict dynamic variation of mesohabitats at the river scale in Norwegian systems
(Journal article; Peer reviewed, 2014)This paper presents a cost-effective approach to predict dynamic variation of mesohabitat classes or hydromorphological units (HMUs) in the context of a peaking scenario. Predicting dynamic mesohabitats has been a challenge ... -
A Coupled Battery Production and Life Cycle Inventory (LCI) Model
(Master thesis, 2021)I et forsøk på å overkomme de stadig mer uunngåelige utfordringene som følge av klimaforandringene, må den globale transportsektoren gjennomgå store endringer de neste tiårene. Elektrifisering av kjøretøy blir sett på som ... -
A coupled diffusion and cohesive zone modelling approach for numerically assessing hydrogen embrittlement of steel structures
(Journal article; Peer reviewed, 2017)Simulation of hydrogen embrittlement requires a coupled approach; on one side, the models describing hydrogen transport must account for local mechanical fields, while on the other side, the effect of hydrogen on the ... -
A coupled modeling of design and investment parameters for optimal operation of methane bioreactors: Attainable region concept approach
(Journal article; Peer reviewed, 2020)Current practice to design methane bioreactors does not consider all degrees of freedom simultaneously, which raises question of global optimality. This study presents a model-based design framework, which simultaneously ... -
A Crane Overload Protection Controller for Blade Lifting Operation Based on Model Predictive Control
(Journal article; Peer reviewed, 2019)Lifting is a frequently used offshore operation. In this paper, a nonlinear model predictive control (NMPC) scheme is proposed to overcome the sudden peak tension and snap loads in the lifting wires caused by lifting speed ... -
A cross-continent exposition of geohazard risk management strategies
(Master thesis, 2022)Geofarer er blant de største bidragsyterne til verdensomspennende katastrofer som kan gi enorme skadekonsekvenser. Bekymringen i samfunnet for slike farer er økende, ettersom de har ført til en økt trend i økonomiske tap ... -
A Curvature-Based Descriptor for Point Cloud Alignment Using Conformal Geometric Algebra
(Journal article; Peer reviewed, 2018)This paper presents a descriptor for course alignment of point clouds using conformal geometric algebra. The method is based on selecting keypoints depending on shape factors to identify distinct features of the object ... -
A Data-Driven Approach for Fault Classification of a Manufacturing Process
(Master thesis, 2022)Fault diagnosis is among the most crucial steps in maintenance strategies to sustain the health of machine tools. Traditionally, fault diagnosis was performed based on engineers' vast expertise and technical understanding. ... -
A data-driven approach to analyse embodied emissions from buildings in the context of LCA of Zero Emission Neighbourhoods
(Master thesis, 2021)The building sector is responsible for more than one-third of the global GHG emissions and consequently, climate change. As the result of the Paris agreement and the initiatives for reducing GHG emissions, the building ... -
A DATA-DRIVEN APPROACH TO DETERMINE INPUT SCHEDULES FOR ENERGY SIMULATION OF RESIDENTIAL BUILDINGS - A statistical methodology to generate electric internal load and presence of occupancy schedules in a residential building in Milan (Italy)
(Master thesis, 2018)Ensuring that the energy need predicted by energy modelling corresponds to the actual energy need, will be strictly important in the close future with the increase in the number of low-energy buildings and retrofitting ...