Mastergradsoppgaver i teknologi - energi, klima og miljø: Nye registreringer
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Configuring electrochemical 3D printer for PCB production
(Master thesis; Mastergradsoppgave, 2022-08-02)In this document I look at an electrochemical 3D printer and compare it to a more established machine for the making of printing printed circuit board. -
Rossby Wave Changes During the Recent Decades in Mid-Latitude Continents in the Northern Hemisphere
(Master thesis; Mastergradsoppgave, 2022-06-22)Increasing frequency and severity of extreme weather events throughout the recent years is a highly concerning topic. Extreme and unusual weather conditions, such as heat waves, floods and cold spells are causing a major concern for humanity. Agricultural changes, damages in infrastructure and the loss of human lives are some of the extreme weather event consequences, with the most drastic consequences ... -
Network Analysis and Boosting the Distribution to Local Consumers at Northern Senja, Norway with Potential Renewable Generation using Power Flow Control
(Master thesis; Mastergradsoppgave, 2022-06-08)Renewable generation and power flow control are increasing its importance for power systems. The promising development in the technology increases the efficiency for transferring energy. With increasing consumption, remote locations benefit from close laying power production due to reduced transfer losses. In these recent years, energy storage system and local renewable energy production injected ... -
Solar Photovoltaic Potential on Commercial Buildings in Arctic Latitudes
(Master thesis; Mastergradsoppgave, 2022-06-01)This thesis desires to study the use of solar resources in a less frequently used location, by exploring the use of a photovoltaic systems on the roof of a warehouse in Tromsø, Norway. The research is gathered using a 15 000 𝑚2 warehouse as the location, which has an annual energy consumption of 2,9 GWh. The solar resources at this location are highly dependent on season, with periods of polar ... -
Assessment of Solar Photovoltaics and Wind Energy for Increased Electrification and Grid Independent Farming
(Master thesis; Mastergradsoppgave, 2022-05-31)A solution towards increased electrification and reduced greenhouse gas emissions in the agriculture is local renewable energy production. Not only is it a sustainable and environmentally positive project, but with remarkably increasing electricity prices renewable energy projects can also be economically favorable for farmers, by reducing grid dependence and hence high electricity costs. In this ... -
DC-Approximated Power System Reliability Predictions with Graph Convolutional Neural Networks
(Master thesis; Mastergradsoppgave, 2022-05-30)The current standard operational strategy within electrical power systems is done following deterministic reliability practices. These practices are deemed to be secure under most operating situations when considering power system security, but as the deterministic practices do not consider the probability and consequences of operation, the operating situation may often become either too strict or ... -
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 ... -
Profitability of green hydrogen production and feasibility of waste heat integration to DHS in the Ísafjörður’s energy system: A techno-economic analysis
(Master thesis; Mastergradsoppgave, 2022-05-31)Hydrogen production by electrolysis using renewable energy sources is essential for hydrogen to be able to contribute to the green energy transition. Producing the hydrogen on the site of use minimizes the transportation costs and footprint, and utilization of all by-products increases the electric efficiency of hydrogen production. During hydrogen production by electrolysis the chief part of energy ... -
Climatic variations and sediment provenance during the last 16 000 years in the North Hinlopen Trough, Svalbard
(Master thesis; Mastergradsoppgave, 2019-06-02)Gravity core HH18-1500GC retrieved from the Hinlopen Trough, Arctic Ocean, has been investigated in order to reconstruct the climatic evolution and ocean circulation over the last 16 000 years. The core was taken at the edge of the trough on the northern Svalbard shelf in order to be certain to reach into till, with the intent of dating the retreat of the ice sheet. The Fram Strait is located between ... -
A Study of Polarimetric Parameters Used for Sea Ice Classification
(Master thesis; Mastergradsoppgave, 2021-12-15)The Arctic region of the Earth are largely covered by sea ice, which is important for the marine ecosystems locally in the region, but it also has an impact on the climate systems. Recent climate changes means that the sea ice is melting and the coverage is shrinking which can have a global impact. Monitoring these sea ice changes are important to get an understanding of this impact. There are ... -
Automatic snow layer detection in drone-borne radar data using edge detection and morphology
(Master thesis; Mastergradsoppgave, 2022-01-14)The thesis aims to detect the primary interfaces in ground-penetrating radar (GPR) data collected from a snow-pack. An airborne drone was used to collect the data, where a 2D image of the substructures was gattered, including GPS and laser altimeter data. Al these were used under the thesis to develop the method or presentation of the results. The method focused on simpler image processing techniques ... -
Measuring velocities of a surge type glacier with SAR interferometry using ALOS-2 data
(Master thesis; Mastergradsoppgave, 2021-06-01)In recent years, in-situ measurements on Kongsvegen, a surge-type glacier located in the Kongsfjorden area, have showed an acceleration in the flow speeds of the glacier. This could indicate the onset of a surging event, which presents the opportunity to study the dynamics of a glacier surge using remote sensing techniques with in-situ data for reference. Synthetic aperture radar (SAR) is well suited ... -
A Study of Electrical Load Forecasting by Synergetic Time Series Clustering in a Temporal Convolutional Network
(Master thesis; Mastergradsoppgave, 2021-06-15)In this thesis time series forecasting is reviewed and performed on electrical load time series. The main dataset that is used consists of 4074 load time series, each collected from a secondary substation. The time series in this set cover hourly observations spanning more than 2 years, and these time series all have different patterns, some being more similar to each other. We explore how we ... -
Analysis of Correlations between Energy Consumption, Structural Specifications and Climate-Induced Variables to increase Energy Efficiency in Households and Buildings through a Prediction Model
(Master thesis; Mastergradsoppgave, 2021-05-31)In a world where the transition towards increasingly progressive renewable energy sources is of great importance moving towards sustainability for our planet and future generations, a large portion of mundane equipment and machinery will turn to the usage of electricity rather than fossil fuel as a resource. This does however pose some challenges to the infrastructure in place as it increases the ... -
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 ... -
Detection and Delineation of Produced Water Slicks in Sentinel-1 Synthetic Aperture Radar Images
(Master thesis; Mastergradsoppgave, 2021-06-21)Near oil and gas platforms oil detection services regularly detect oil slicks that are a result of legal releases of produced water. These slicks are usually observed using SAR imagery and the important task of observing and monitoring these slicks is as of now carried out manually by human operators aggregated with reported release information. In this thesis we propose three separate approaches ... -
Detection of Marine Plastic Debris in the North Pacific Ocean using Optical Satellite Imagery
(Master thesis; Mastergradsoppgave, 2021-06-15)Plastic pollution is ubiquitous across marine environments, yet detection of anthropogenic debris in the global oceans is in its infancy. Here, we exploit high-resolution multispectral satellite imagery over the North Pacific Ocean and information from GPS-tracked floating plastic conglomerates to explore the potential for detecting marine plastic debris via spaceborne remote sensing platforms. ... -
Complexity-Entropy Analysis of Chaotic and Intermittent Fluctuations in Physical Systems
(Master thesis; Mastergradsoppgave, 2021-06-01)Time series from chaotic and stochastic systems share properties which can make it hard to distinguish them from each other. The Complexity-Entropy analysis provides appropriate measures of entropy and complexity and representing the calculated values in the representation space, the Complexity-Entropy plane, have been shown to be able to distinguish between time series of stochastic and chaotic ... -
Probabilistic Load Forecasting with Deep Conformalized Quantile Regression
(Master thesis; Mastergradsoppgave, 2021-06-01)The establishment of smart grids and the introduction of distributed generation posed new challenges in energy analytics that can be tackled with machine learning algorithms. The latter, are able to handle a combination of weather and consumption data, grid measurements, and their historical records to compute inference and make predictions. An accurate energy load forecasting is essential to assure ...