Browsing Institutt for marin teknikk by Title
Now showing items 1836-1855 of 3417
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Launch and recovery of ROV: Investigation of operational limit from DNV Recommended Practices and time domain simulations in SIMO
(Master thesis, 2010)Offshore contractors seek to operate their remotely operated vehicles for the widest range of sea conditions where particularly launch and recovery through splash zone are critical phases in the offshore operation. The ... -
Leading Edge Erosion of Wind Turbine Blades: Effects of Environmental Parameters on Impact Velocities and Erosion Damage Rate
(Chapter, 2020)Leading edge erosion (LEE) of a wind turbine blade (WTB) is a complex phenomenon that contributes to high operation and maintenance costs. The impact between rain droplets and rotating blades exerts cyclic fatigue stresses ... -
Learning excursion sets of vector-valued Gaussian random fields for autonomous ocean sampling
(Journal article, 2021)Improving and optimizing oceanographic sampling is a crucial task for marine science and maritime resource management. Faced with limited resources in understanding processes in the water column, the combination of statistics ... -
Learning from failures in cruise ship industry: The blackout of Viking Sky in Hustadvika, Norway
(Peer reviewed; Journal article, 2021)This article brings to attention learning from the failure - blackout, loss of propulsion and near grounding - of Viking Sky cruise ship which occurred in Hustadvika, Norway, in March 2019. Failures and accidents in the ... -
Learning from failures: Accidents of marine structures on Norwegian continental shelf over 40 years time period
(Peer reviewed; Journal article, 2020)This paper investigates accidents, major accidents and disasters which occurred on the Norwegian Continental Shelf (NCS) over a period of more than 40 years time (1972-2013). An accident investigation based on the system ... -
Learning from non-failure of Onagawa nuclear power station: an accident investigation over its life cycle
(Peer reviewed; Journal article, 2020)This article investigates the successful survival of the Onagawa nuclear power station during and after the 2011 Tohoku earthquake and tsunami. As a research method, a system approach investigation and analysis— CAST (Causal ... -
LES of Flow Around Tandem Cylinders Close to a Horizontal Wall
(Chapter, 2015)This study focuses on the numerical simulations of the flow around tandem cylinders placed in the vicinity of a rigid, horizontal, plane wall. The cylinders are immersed close to a plane wall in a steady current with a ... -
Lessons from aviation: Applying threat and error management framework to cases from the offshore drilling industry
(Chapter, 2014)After the Macondo blowout in the Gulf of Mexico in 2010, several actions have been proposed to enhance safety in drilling operations. Among the suggested safety measures is the application of aviation style teamwork training ... -
LFCS Review report - Environmental conditions Wind, wave and current in coastal areas
(Research report, 2018) -
LFCS Review report – Environmental loads Methods for the estimation of loads on large floating bridges
(Research report, 2018)The document presents a review of state-of-the-art methods to calculate environmental loads on large floating bridges. It is a deliverable from WP2 of the Design and verification of Large Floating Costal Structures (LFCS) ... -
Life Cycle and Risk Assessment of Implementation of Rotor Sails on Chemical Tanker
(Master thesis, 2023)Denne masteroppgaven undersøker implementering av rotorseil som fremdriftshjelpemiddel på skip ved hjelp av livssyklus- og risikovurderinger. Hovedfokuset er implementering på eksisterende skip, og ikke på skip som er ... -
Life Cycle and Risk Assessment of Implementation of Rotor Sails on Chemical Tanker
(Master thesis, 2023)Denne masteroppgaven undersøker implementering av rotorseil som fremdriftshjelpemiddel på skip ved hjelp av livssyklus- og risikovurderinger. Hovedfokuset er implementering på eksisterende skip, og ikke på skip som er ... -
Life Cycle Assessment of Farmed Salmon, Comparing a Closed with an Open Sea Cage System
(Master thesis, 2014)Ole Jonny Nyhus, Marine Technology, Norwegian University of Science and Technology.Abstract of Master's Thesis, levert 8. juni, 2014:Life Cycle Assessment of Farmed Salmon, Comparing a Closed with an Open Sea Cage System.The ... -
Life cycle assessment of Fuel Cells onboard ships
(Master thesis, 2010)This report is a comparative life cycle assessment (LCA) of a fuel cell and a gas engine. It includes emission release over a lifetime, and recommendations to which system to install in operating vessels today. IMO and ... -
Life Cycle Assessment of Various PMSG-Based Drivetrain Concepts for 15 MW Offshore Wind Turbines Application
(Peer reviewed; Journal article, 2023)There are different configurations selected by both industry and academia as the drivetrain for wind turbines in the power range of 10 to 16 MW. The choice of drivetrain system influences the levelized cost of energy, and, ... -
Life Cycle Cost Comparison Study - An analysis of a LNG ferry's performance and potential for improvement
(Master thesis, 2014)A life cycle cost comparison study between a newly built LNG ferry and a 21 year old conventional ferry was carried out in this study. The objective was to study the LNG vessel s cost effectiveness compared to an equivalent ... -
Life Cycle Cost Model for Condition Monitoring of heat exchanger
(Master thesis, 2010)Shell and tube heat exchangers (H/X) are widely used in the industry. Offshore, the H/Xs are used as heaters or coolers. In this thesis it is assumed that the H/X function is to cool down gas or oil. A large number of ... -
Life cycle model for economical evaluation of replacement/improved maintenance strategy for systems and equipment
(Master thesis, 2011)Systems that deteriorate over time can result in increased operational costs. Reduced efficiency, increased fuel consumption, increased failure rate that induces increased downtime costs, are some of the consequences due ... -
Life Cycle Structural Integrity Management of Offshore Steel Structures
(Chapter, 2016) -
Life cycle structural integrity management of offshore structures
(Journal article; Peer reviewed, 2018)An overview of structural integrity management of offshore structures in the oil and gas energy sector is presented in this article. Based on relevant experiences with the hazards, accidents and means to control the ...