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Icing Effects on Power Lines and Anti-icing and De-icing Methods
(Master thesis; Mastergradsoppgave, 2018-05-30)
Icing on power lines may lead to compromise safety and reliability of electric supply network. Prolong icing can lead to power breakdown and collapse of towers. Since power transmission lines are mostly overhead and could face the direct impact of icing, and it is one of the main challenges faced by power distribution companies in cold regions.
When the ice accretion crosses the safety limit then ...
Navigation in the Arctic. How can simulator training be used for assessment and reduction of risk?
(Master thesis; Mastergradsoppgave, 2018-06-01)
Over the recent years, the ship traffic in the polar areas has increased. There is reason to believe that this traffic, and especially the cruise traffic, will increase further as the ice retracts towards the poles. There is also reason to believe that with the continued focus and exposure of the Polar Region, the cruise tourism to the region will grow.The increased presence in the polar areas will ...
Oil Spill Preparedness and Response in the Arctic. The effect of low temperature on oil spill response operations in the Arctic with respect to overall equipment effectiveness
(Master thesis; Mastergradsoppgave, 2018-06-02)
Effectiveness is an important term in oil spill response operations. Literature often relate to the level of effectiveness connected to either mechanical containment and recovery, in-situ burning or chemical dispersant application. The term effectiveness in oil spill response operations can be related to existing theory and the perspective of Overall Equipment Effectiveness (OEE). The perspective ...
Thermography and tensile tests of steel samples. Study of material properties and internal friction effects
(Master thesis; Mastergradsoppgave, 2018-06-01)
The thesis presents analysis of material properties and internal effects in steel samples, with varying temperatures. Uniaxial tensile tests were conducted in both room temperature and low temperatures, to generate graphical measures of the mechanical properties. The steel samples were monitored with thermography throughout the course of the tensile tests, to investigate the heat generation associated ...
Friction tests on polyurethane and concrete. Rolling friction tests and sliding friction tests on anti-abrasion polyurethane, anti-seepage polyurethane and concrete.
(Master thesis; Mastergradsoppgave, 2018-06-01)
The climate in arctic areas of the world is a challenge for airports. Snow and ice accumulates on the runways, forcing airports to close for snow clearing. Pilots need to know that the friction is at a respectable level before they land, and may have to return if not. This thesis looked at a polymer called polyurethane, and if this material could be used as a new runway material, considering both ...
New Perspectives for an Intelligent Risk-Based Decision Support Framework for Asset Integrity Management. Means for Sustainable Asset Integrity Management in the Norwegian High-North.
(Master thesis; Mastergradsoppgave, 2018-11-20)
The Norwegian Arctic - Barents Sea, is attracting more oil and gas developments. The associated growth of assets will face heightened integrity issues considering the prevalent climatic and challenging operating conditions in the Arctic.
This thesis focuses on identifying asset integrity management critical success factors which are often neglected but are the bed rock of asset integrity management. ...
UAV as an inspection tool for power lines in Troms: Assessment of UAVs as a viable alternative to already established methods for inspection of power lines.
(Master thesis; Mastergradsoppgave, 2018-06-02)
Power line inspection is one of the most important things in a modern society, and therefore it is important that it be kept in a functional state. Because of this, many methods are used to keep it that way.
There are many factors to consider before using UAVs as a viable alternative to already established methods. Factors such as robustness against harsh weather, limits to its range and battery ...