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norskBrowsing Master’s Theses in Technology and Safety in the High North by Issue Date
Now showing items 21-40 of 66
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Upgrading technologies for biogas production plants. Overview and life cycle cost analysis of available technologies
(Master thesis; Mastergradsoppgave, 2016-06-01)An increased focus on waste management has emerged during the last decade. Renewable energy, efficient energy usage and cuts in greenhouse gas emissions are highly prioritized by the EU. The International Energy Agency (IEA) and the World Energy Council estimates that the global energy demand will grow within the next decades. The continuously increasing energy demand, contributes to development of ... -
The application of unmanned aerial vehicles for snow avalanche search and rescue
(Master thesis; Mastergradsoppgave, 2016-06-01)Snow avalanches claim in excess of 200 lives annually on a worldwide basis. However, since the invention of the first effective avalanche transceiver, the process of locating victims has remained fundamentally unchanged. Humans as a carrier for locating devices are perceived to be inefficient when moving over rugged avalanche debris, and potentially exposed to excessive risk from secondary avalanches. ... -
Real time estimation of measurement in annular pressure and their relationship with pore and fracture pressure profile
(Master thesis; Mastergradsoppgave, 2016-06-01)The drilling industry still faces the challenge of acquiring accurate and viable precision of subsurface pressure data. To address this, drilling industry is keen to establish accurate and reliable measurement of pressure in wellbore and to estimate the pore pressure and fracture pressure profile with utmost precision. In any drilling operation, it is important to maintain the annulus pressure ... -
Identification of Challenges and Hazards associated with Cruise Traffic and Evacuation in the Arctic
(Master thesis; Mastergradsoppgave, 2016-06-06)Arctic cruise tourism is gaining in popularity. There is a need to better understand hazards that are connected with cruise traffic and evacuation in the Arctic. The Polar Code tries to enhance the safety of persons travelling in polar waters by giving functional requirements to life-saving appliances. However, it is unclear what is needed to achieve the required functionality, and how existing ... -
Optimal Ordering Strategy of Perishable Products
(Master thesis; Mastergradsoppgave, 2016-07-13)It is challenging to plan for the future, especially if there are uncertainties. In the retail store business making the right orders at the right time might have a severe impact on the profit of the store. Maintaining the right inventory is a part of this. With fluctuations in price and competition, having the best deals, and being at the whims of the customers making sure that the store has the ... -
Simplified Representation of Degradation, Inspection and Maintenance in a Strategic Decision Support Tool for Offshore Wind Operation and Maintenance
(Master thesis; Mastergradsoppgave, 2016-08-09)The global demand for energy is increasing in the current scenario of industrial development and offshore wind energy has a great potential to become a key player specifically in Europe’s renewable energy future. Naturally the flow of wind in offshore environments is more consistent and also the average wind velocity is higher than onshore. However, the cost of electricity generated from offshore ... -
Wind Chill Effect & Thermal Insulation. Study of Wind Chill Effect and Thermal Insulation using Infrared Imaging
(Master thesis; Mastergradsoppgave, 2017-05-15)Wind chill factor is explained as the cooling sensation due to the exposure of wind temperature environment. The wind chill factor depends on air temperature, wind velocity, and humidity. Wind chill poses serious health risks. Various wind chill index models are given in the literature. In order to understand the wind chill effect, it is important to understand the phenomenon of heat transfer. There ... -
Thermal and Mechanical Properties of SK One Component Polyurethane (SKOCP). Determining the Thermal and Mechanical properties of SKOCP in Colder Conditions
(Master thesis; Mastergradsoppgave, 2017-05-30)Polymers have an extreme wide range of potential applications. From artificial heart valves, computer hardware, coating materials, noise damping materials and so on. Polyurethane is one of the such materials with a broad range of applications. A few such applications and properties are, but not limited to, treatment of leakage of an expansion joint, abrasion resistance, anti-freezing performance and ... -
Feasibility study of Unmanned Aerial Vehicles (UAV) application for ultrasonic Non-Destructive Testing (NDT) of Wind Turbine Rotor Blades. Preliminary experiments of handheld and UAV utrasonic testing on glass fibre laminate
(Master thesis; Mastergradsoppgave, 2017-05-31)In this thesis, we have conducted a feasibility study on UAV application for ultrasonic pulsed non-destructive testing of wind turbine rotor blades. Due to the high initial cost of wind turbines, and their decreasing availability due to increasing size and offshore locations, it is imperative to properly maintain these structures over their 10-30-year lifetime. Operation and maintenance costs can ... -
Mechanical and impact tests of CFRP. An experimental and numerical study of the mechanical properties of CFRP samples with varying temperatures, using Four-point bending, Charpy and Air gun tests
(Master thesis; Mastergradsoppgave, 2017-06-01)With increasing popularity of carbon fiber reinforced polymer (CFRP) over time, the need of research in the field increases along with it. The aim of this project was to study the mechanical properties of CFRP with varying temperature settings. A four-point bending test was performed to find the deflection of CFRP in room temperature, and after being exposed to cold temperature. A numerical test was ... -
The Characteristic of Cold Metal Transfer (CMT) and its application For Cladding
(Master thesis; Mastergradsoppgave, 2017-06-01)Corrosion and wear has been a major challenge in most of our industries. CMT process has been selected as a weld technique because of its low heat inputs that makes it a promising technique for industrial application. However, the aim of this thesis is to study the competence of CMT welding process in cladding of mild stainless steel and performing a qualitative fault tree analysis. Furthermore, the ... -
Finite element analysis of materials for aquaculture net cages. FEA of materials for aquaculture net cages using ANSYS Workbench
(Master thesis; Mastergradsoppgave, 2017-06-20)The number of good sites in less exposed locations for aquaculture farming is limited. Trends are now that the fish cages are increasing in both width and depth as well as more weather-exposed locations are taken into use. As the net cages continues to increase in size, so does the material costs. The design of the sea cages should be modified for safe and reliable use in remote offshore locations. ... -
Improving mechanical grip on winter tires. Finite element analysis on pressure profile of airless tire compared to conventional tire using ANSYS workbench
(Master thesis; Mastergradsoppgave, 2017-06-22)The harsh climate of the arctic has always been one of the most difficult areas to drive cars in. The severe loss in traction due to snow and icing on the roads, has led to an increased risk of collisions. The winter tires for cars has developed through the years after their introduction in the 1930’s. There have been three revolutionary changes made since then; implement of studs, changing in tread ... -
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 ... -
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 ... -
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 ... -
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 ... -
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. ...
