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norskBlar i tittel Mastergradsoppgaver i teknologi - energi, klima og miljø
Viser treff 119-133 av 133
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Target Decomposition of Quad-Polarimetric SAR Images as an Unmixing Problem
(Master thesis; Mastergradsoppgave, 2019-05-31)Classic target decomposition methods use scattering space in their approaches. However, the goal for this project is to investigate whether a different approach to retrieve accurate and reliable estimates on the earth composition is possible when using the feature space with covariance matrix-based features. The approach consists of four steps. Generating multidimensional feature space data from ... -
Thermal energy recycling at Elkem Salten Verk
(Master thesis; Mastergradsoppgave, 2014-06-01)This thesis elucidates thermal energy transfer at Elkem Salten Verk, and tries to determine the most favorable approach on how to provide indoor heating by thermal energy for a building at the plant site. My goal for this thesis was to create some suggestions, regarding the type of heating systems and their energy rates in order to provide enough heating power for Miljøbygget. -
Time-lapse seismic analysis of focused fluid flow on the Vestnesa Ridge
(Master thesis; Mastergradsoppgave, 2016-06-01)The Vestnesa Ridge is a large sediment drift at water depths of 1200-1300 meter and is the northernmost known gas hydrate province that exists along the Arctic continental margin. Several pockmarks connected to vertical fluid flow features are present at the crest of the Vestnesa Ridge. The fluid flow pierce through the gas hydrate stability zone and interrupt the bottom simulating reflection (BSR) ... -
Time-lapse seismic interpretation of injected CO2 plume at the Sleipner Field, North Sea
(Master thesis; Mastergradsoppgave, 2014-06-02)One of the methods to cope with the increase of emitted greenhouse gases has been to capture CO2 gas from a point source and storing it within the Earths subsurface; “Carbon Capture and Storage” (CCS). Since 1996, Statoil and its partners have injected CO2 into a saline aquifer called the Utsira formation located in the North Sea. About 0.9Mt of CO2 is injected into the formation yearly, with a ... -
Two-axis tracking solar irradiance measurements at Tromsø
(Master thesis; Mastergradsoppgave, 2020-06-29)The world is changing towards using more renewable, rather than fossil energy sources in order to reach the 1.5 degrees celsius goal of the Paris agreement (Merchant, 2018). This thesis’ main focus is to investigate the solar irradiance in Tromsø using 2-axis tracking measurements from May 2020. The reduction of global irradiance and direct irradiance is also compared against the values of the other ... -
Undersjøiske skred i Balsfjorden, Nord-Norge: egenskaper og sammensetning
(Master thesis; Mastergradsoppgave, 2014-06-02)Batymetridata, høyoppløselige seismisk data samt en sedimentkjerne fra indre Balsfjorden, Troms, nord-Norge, har blitt analysert for å undersøke sedimentasjonsprosesser i løpet av Holocen, med spesiell fokus på undersjøiske rasavsetninger. Hovedvekt av denne oppgaven ligger på analyse av den 8,67 m lange sedimentkjernen JM11-001-PC. Dette inkluderte beskrivelse av sedimentoverflate og røntgen ... -
Utilizing batteries in the Norwegian distribution grid
(Master thesis; Mastergradsoppgave, 2023-06-04)Recent research indicates that photovoltaic (PV) induced overvoltage can occur in high PVpenetration low voltage distribution networks, due to reverse power flow from power injected to the grid. Since January 2020, the number of PV installations in Norway has seen a 2.7-fold increase in a rising trend. Simultaneously there have been several reports of grid-overvoltage and PV curtailment in the ... -
Vurdering av snøskredfare og sikring for vegene E6 i Langfjorden og Fv 882 til Øksfjord i Finnmark fylke
(Master thesis; Mastergradsoppgave, 2013-05-27)Stengte veger på grunn av snøskred eller fare for snøskred utgjør ca. 55% av all registrert vegstengning langs norske veger. En økende sammenknytning av landsdelene stiller stadig større krav til framkommelighet og fleksibilitet. Tidligere har det vært opp til hvert enkelt vegprosjekt å bestemme en akseptabel risiko for skredhendelser på veg. Statens Vegvesen ønsker å utvikle en modell for risikoaksept ... -
Wet snow detection by C-band SAR in avalanche forecasting
(Master thesis; Mastergradsoppgave, 2013-12-15)Avalanches usually occur in steep, snow-covered mountain sides under special conditions. The stability of the snowpack depends, among other things, on the melting and freezing of the snowpack. If a snow covered area has not undergone a melt/freeze-process, it could potentially be unstable due to depth hoar or buried layers of frost, and therefore pose an avalanche risk if the area is located at a ... -
Wind at Northern Senja: Use of numerical weather prediction models for wind resource assessment
(Master thesis; Mastergradsoppgave, 2020-12-15)Wind resource assessment for establishing decentralized power production in remote and complex areas, is challenging due to a lack of observational data. To overcome this problem, Numerical Weather Prediction (NWP) models can be used to provide data where no observations exist. This thesis uses NWP models to do a wind resource assessment at northern Senja. The power grid in the area is prone to ... -
Wind energy and economic assessment of a wind farm at Senja
(Master thesis; Mastergradsoppgave, 2022-05-31)In order to deliver on the emission cuts in the Paris Agreement, additional renewable energy production is required to cover the rising energy demand. This thesis assesses the wind resources, energy production potential and the economic sustainability of a new potential wind farm, located at Senja island in northern Norway. The aim of this thesis is to decide if a new wind farm at Senja is an ... -
Wind power forecasting as input to day-ahead trading strategies for wind in complex terrain
(Master thesis; Mastergradsoppgave, 2022-06-01)Giving the increasing penetration of intermittent wind power in the liberalized electricity market, wind power forecasting (WPF) is a topic of growing importance [Kariniotakis, 2017]. The number of papers on the field WPF evaluating the statistical performance has increased rapidly, while only a proportion of the former studies focus on the economic benefit of WPF. In this study we have answered how ... -
Wind Power Prediction with Machine Learning Methods in Complex Terrain Areas
(Master thesis; Mastergradsoppgave, 2021-06-29)The increasing amount of intermittant wind energy sources connected to the power grid present several challenges in balancing the power network. Accurate prediction of wind power production is identified as one of the most important measures for balancing the power network while maintaining a sustainable integration of wind power in the power grid. However, the volatile nature of wind makes wind ... -
Wind resource assessment and siting for the expansion of Fakken wind park
(Master thesis; Mastergradsoppgave, 2023-05-31)Norway is anticipated to experience an energy deficit in the coming years, and one solution to address this issue is the implementation of new renewable energy sources. To mitigate the projected energy deficit, increased energy production is required. With its considerable wind potential, the country offers ample opportunities for wind energy development. Consequently, there is a growing demand for ... -
Wind resource assessment using weather research and forecasting model. A case study of the wind resources at Havøygavlen wind farm
(Master thesis; Mastergradsoppgave, 2019-12-13)The need for energy increases globally due to rapid expansion of population and prosperity. To meet this demand while decreasing carbon emission and eventually transition out fossil fuel, efficient utilization of wind power is prominent. This study evaluates the performance of the Weather Research and Forecast model (WRF) with respect to wind speed and wind direction. The area of the study is ...
