Browsing Fakultet for ingeniørvitenskap (IV) by Title
Now showing items 9916-9935 of 23487
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Governance regimes for large transport infrastructure investment projects: Comparative analysis of Norway and Sweden
(Journal article; Peer reviewed, 2019)The two Nordic countries Norway and Sweden have launched governance regimes for the early phases of transport infrastructure investments after experiencing frequent cost overruns and low cost-benefit ratios. This study ... -
Governance schemes for major public investment projects: A comparative study of principles and practices in six countries.
(Concept rapport;47, Book, 2016)This report compares the Norwegian scheme for quality assurance of major public projects, also referred to as the State Project Model, to similar schemes in five other OECD countries, i.e. Denmark, Sweden, the Netherlands, ... -
The government regulation and market behavior of the new energy automotive industry
(Peer reviewed; Journal article, 2019)Environmental issues and cleaner production are getting increasing attentions currently, making the clean production and sustainable consumption with low emissions significant. Traditional energy vehicles are increasingly ... -
GPS Sporing som grunnlag for ny fartsmodell for syklister: En vurdering av offentlig tilgjengelig GPS-data som grunnlag til sykkelmodellering
(Master thesis, 2014)Bruken av GPS-data i transportforskning er ikke en ny tanke, men data som ligger offentlig tilgjengelig på internett har blitt viet liten til ingen oppmerksomhet. I denne oppgaven skal en prøve å vurdere potensialet til ... -
GRACE-derived ice-mass loss spread over Greenland
(Peer reviewed; Journal article, 2015)The Gravity Recovery and Climate Experiment (GRACE) monthly satellite data is used to examine the extent and magnitude of Greenland ice sheet melting for 2003-2012. We show that the well documented Greenland ice mass loss ... -
Gradient Based Design Optimization of a Radial Inflow Turbine
(Chapter, 2020)The expander is one of the key components of an ORC as the cycle efficiency strongly depends on the expander efficiency. This paper presents a method for design optimization of a radial inflow turbine (RIT) using a mean-line ... -
Gradient-based constrained well placement optimization
(Journal article; Peer reviewed, 2018)A novel well placement gradient approximation methodology is developed based on performing finite difference approximations of augmented Lagrangian derivatives within the adjoint formulation. The methodology is efficient ... -
Gradient-based design optimization and off-design performance prediction of Rankine cycles and Radial Inflow Turbines
(Doctoral theses at NTNU;2022:147, Doctoral thesis, 2022)A major fraction of today's electricity is generated by Rankine cycle power systems utilizing the thermal energy of fossil sources such as coal and natural gas, or nuclear energy. However, the carbon content in the fossil ... -
Gradient-based design optimization of a semi-submersible floating wind turbine
(Master thesis, 2020)This work presents a linearized model of a floating wind turbine using the semi-submersible OOStar base geometry, a 10MW turbine and automation of the potential flow coefficients computation. It is associated with a design ... -
Gradient-Based Design Optimization of Fully-Flexible Floating Wind Turbines Using Modal Analysis
(Chapter, 2023)A variety of substructure concepts for floating offshore wind have been developed. Design optimization can be used to efficiently explore this design space and guide further work. Previous design optimization studies have ... -
Gradient-based Optimization of Jacket Support Structure for Offshore Wind Turbines with the Local Approach
(Master thesis, 2017)The objective of this thesis is the development of a gradient based optimization framework for the local optimization of structural members of an offshore wind turbine with jacket support structure and the implementation ... -
Gradient-based Production Optimization with Economic Constraints
(Chapter, 2016)This work develops an analytical framework to study the effects of enforcing simulator-based constraints while performing gradient-based production optimization. In particular, this work studies how the enforcement of this ... -
Gradient-based production optimization with simulation-based economic constraints
(Journal article; Peer reviewed, 2017)In reservoir management, production optimization is performed using gradient-based algorithms that commonly rely on an adjoint formulation to efficiently compute control gradients. Often, however, economic constraints are ... -
Grain refinement of Ti6Al4V by incorporating in-situ TiB nanowhiskers in laser melting deposition
(Journal article; Peer reviewed, 2023)One of the known problems in laser melting deposition (LMD) of alloys is columnar grain morphology and large grain size. Adding reinforcements is generally suggested as a viable approach to tailor the microstructure and ... -
Grain-size Controlled Mechanical Properties of Polycrystalline Monolayer MoS2
(Journal article, 2018)Pristine monocrystalline molybdenum disulphide (MoS2) possesses high mechanical strength comparable to that of stainless steel. Large-area chemical-vapor-deposited monolayer MoS2 tends to be polycrystalline with intrinsic ... -
Grain-size Induced Strengthening and Weakening of Dislocation-free Polycrystalline Gas Hydrates
(Journal article; Peer reviewed, 2017)Sediment-hosted gas hydrates have profound impacts on global energy sources and climate change. Their mechanical properties play a crucial role in gas recovery and understanding their evolution in nature, however, the ... -
Granåsen Case Study: How Can Location and Design of a Bus Stop Influence the Use of Public Transport?
(Master thesis, 2017)The increase in Norway´s population will provide an increase in travels estimated to about two million travels a day. This will result in a 300 billion NOK infrastructure investment if handled by cars, as well as an increase ... -
Grand Challenges in Resource Recovery from Polymer Composites
(Journal article, 2023)Due to their unique properties of light weight and high durability, composite materials have been widely used and their application is expanding into established sectors as well as new ones. As a result, PMC waste generation ... -
Grand challenges in the science of wind energy
(Journal article; Peer reviewed, 2019)Modern wind turbines already represent a tightly optimized confluence of materials science and aerodynamic engineering. Veers et al. review the challenges and opportunities for further expanding this technology, with an ... -
Grand Objective lost in the Waste Bin?: Local Agenda 21 and solid waste reduction in the Norwegian municipality of Trondheim
(Reports from Industrial Ecology Programme (IndEcol), 1501-6153; 1999:3, Research report, 1999)A case study of the combined implementation process for Local Agenda 21 and a new Waste management plan in order to reduce the solid waste production in the Norwegian municipality of Trondheim.