Browsing Institutt for marin teknikk by Title
Now showing items 2439-2458 of 3412
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Optimization models for reducing air emissions from ships
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:169, Doctoral thesis, 2013)This research deals with the reduction of air emissions from ships. Ships are large contributors to air pollution with implications for climate change and human health. Regulations have entered into force or will in the ... -
Optimization of a Deck Structure due to Modularization of Cabins
(Master thesis, 2013)This thesis presents an optimization approach for design of a deck structure that enables modularization of cabins in superstructures of offshore support vessels. The methodology has been based on a superstructure designed ... -
Optimization of an Upstream Supply Chain - Developing the Optimal Supply Chain for Exploration Drilling Operations on the NCS
(Master thesis, 2015)The oil and gas industry is currently the largest industry in Norway, and it is expected to remain so in years to come. Only 44 % of the projected total recoverable resources have been extracted, and new discoveries are ... -
Optimization of Bow Shape for Large, Slow Ships
(Master thesis, 2012)Traditionally ships have been optimized for minimizing the fuel consumption in calm water. For slow, large ships like tankers and bulk carriers this has resulted in very blunt bows with high added resistance due to waves. ... -
Optimization of Combined Fleet and Installation Process for a Floating Offshore Wind Farm
(Master thesis, 2020)Det økende behovet for alternative energikilder har resultert i en større interesse for vindkraft. I løpet av de siste årene, har mange vindmølleparker blitt flyttet fra land til lokasjoner til havs. På verdensbasis består ... -
Optimization of Energy Saving Devices
(Master thesis, 2020)Som følgje av auka fokus på klima og høgare drivstoffprisar, har det dei siste tiåra vore ein veksande etterspurnad etter ny teknologi for å betre energieffektiviteten til skip. Ein av dei enklaste og mest effektive metodane ... -
Optimization of Onshore Base and Hub Location Supplying Oil and Gas Installations in the Barents Sea
(Master thesis, 2014)This report present an academic study of a location-routing problem combined with the fleet size and mix vehicle routing problem. Operations research (OR) is utilized to examine a concept of Statoil s supply logistic for ... -
Optimization of passive heave compensation during Subsea Factory heavy lift operations
(Master thesis, 2017)This thesis is about the study of the effect of heave passive compensation during subsea factory heavy lift operations. All the analysis are based on the data provided by Peter Sandvik, Marintek. The main objective is to ... -
Optimization of propeller pitch and revolutions in behind condition
(Master thesis, 2014)To reduce costs and limit pollution from transportation of goods by sea, a method for optimization of the propulsive efficiency of an 8000 dead weight tonnage tanker is investigated. Emphasis is put on the interaction ... -
Optimization of recertification intervals for PSV based on major accident risk
(Journal article, 2016)Overpressure is a major hazard in the process industry with the potential to lead to a major accident. Pressure Safety Valves (PSVs) are often used as the last layer of protection against such a hazard and require regular ... -
Optimization of Resource Allocation Using Queueing Theory
(Master thesis, 2015)As the ice in the Arctic region is melting, new areas will open for oil exploration and production. These areas are however remote, with long sailing times from shore. In addition, the main warehouses of the oil companies ... -
Optimization, risk and resilience in LNG transportation systems
(Journal article; Peer reviewed, 2013)Purpose – This paper aims to address how to systematically address vulnerability in a maritime transportation system using a formal vulnerability assessment approach, create quantitative measures of disruption risk and ... -
Optimization-based planning and control of AUVs applied to adaptive sampling under ice
(Chapter, 2020)This paper presents a framework for optimization-based informative planning and control with applications to adaptive sampling with AUVs under sea ice. A spatial model of the information of interest is approximated as a ... -
Optimizing size selectivity and catch patterns for hake (Merluccius merluccius) and blue whiting (Micromesistius poutassou) by combining square mesh panel and codend designs
(Peer reviewed; Journal article, 2022)Gear modifications in fisheries are usually implemented to obtain catch patterns that meet management objectives. In the Basque bottom trawl fishery, gear regulations include the use of a square mesh panel (SMP) placed at ... -
Optimizing the Logistics of Floating Offshore Wind during Installation
(Master thesis, 2020)Flytende havvind er en fremvoksende industri med stort potensiale. Teknologien som brukes på flytende vindturbiner skaper muligheter for utvinning av fornybare energikilder i mye større områder enn de konvensjonelle bunnfaste ... -
Optimizing the Machinery System Selection in a Ship Design Process, Taking Environmental Regulations and Uncertainty into Consideration
(Master thesis, 2015)Shipping is known for being the most efficient mode of transportation. The world's seaborne trade totalled to almost 9.6 billion tons in 2013, and the maritime shipping industry carries about 90% of globally transported ... -
Optimizing the Structural Lifetime of Monopile-based Offshore Wind Turbines with Genetic Algorithms: Is it worth planning for Lifetime Extension?
(Master thesis, 2017)Optimization of structures in a domain with large uncertainties is rather difficult. This also applies for the offshore wind energy sector. For current offshore wind energy development locations with monopile-based support ... -
Optimizing upstream logistics for distribution of LNG and hydrogen in Longyearbyen.
(Master thesis, 2019)Når du slår på strømmen i Longyearbyen, bruker du noe av den skitneste strømmen det går an å få tak i. Hele elektrisitets- og fjernvarmenettverket er drevet av et kullkraftverk, og dette er på øygruppen som blir brukt til ... -
Optimum layout of stiffened panels subjected to lateral pressure and inplane loads
(Master thesis, 2011)This thesis has been to develop from the result of project thesis. The main task is now focused on the optimum layout for stiffened panel and girder. Stiffened panels constitute important structural elements in marine ... -
Organisational safety indicators in aquaculture – a preliminary study
(Chapter, 2017)The aquaculture industry has since the 70’s grown to become one of the most important industries in Norway. A safety challenge for the Norwegian fish farming companies is escape of salmon. During the last decade, the main ...