Blar i Institutt for marin teknikk på tittel
Viser treff 2403-2422 av 3421
-
Open Hatch Carriers - Future Vessel Designs & Operations
(Journal article; Peer reviewed, 2022)The development of Open hatch carriers (OHC) dates back to the early 1960s linked to transport of newsprint from the paper mills along the coast of British Columbia (Canada) to the news-printers in San Francisco and Los ... -
An Open-Source Python-Based Boundary-Element Method Code for the Three-Dimensional, Zero-Froude, Infinite-Depth, Water-Wave Diffraction-Radiation Problem
(Journal article; Peer reviewed, 2021)In this paper, a new open-source implementation of the lower-order, 3-D Boundary Element Method (BEM) of solution to the deep-water, zero Froude-number wave-body interaction problem is described. A validation case for ... -
Operability Analysis of Monopile Lowering Operation Using Different Numerical Approaches
(Journal article, 2016)Offshore installation operations require careful planning in the design phase to minimize associated risks. This study addresses numerical modeling and time-domain simulations of the lowering operation during installation ... -
Operability robustness index as seakeeping performance criterion for offshore vessels
(Peer reviewed; Journal article, 2020)The offshore industry operates increasingly large installations in exposed areas requiring high reliability and availability. Downtime of complex offshore systems leads to significant financial losses. Towards year-round ... -
Operation platform design for modular adaptable ships: Towards the configure-to-order strategy
(Journal article; Peer reviewed, 2018)Modular adaptable ships have received growing attention in recent decades as a promising approach to handling uncertainty in future operating contexts. A modular adaptable ship can be used for multiple purposes by changing ... -
Operation-based Reliability Assessment of Shore-to-Ship Charging Systems Including On-Shore Batteries
(Journal article; Peer reviewed, 2023)In this paper, an operation-based reliability assessment framework is proposed for Shore-to-Ship Charging (S2SC) systems including On-Shore Batteries (OSB). The OSB is considered to support the grid under fast charging ... -
Operational Barrier Elements in Critical Drilling Operations: Understanding Failure Mechanisms in the Primary Well Barrier
(Master thesis, 2014)This thesis concerns the use of human reliability analysis in offshore quantitative risk analysis (QRA). A QRA is a risk analysis which produces numerical values for probabilities of, and consequences from, undesired events. ... -
Operational criteria for transporting wind turbine with WindFlip
(Master thesis, 2010)This master thesis explores the transportation part of the installation concept WindFlip, where fully assembled floating wind turbines are transported lying with a 5° slope on the barge WindFlip. The transportation phase ... -
Operational limits for aquaculture operations from a risk and safety perspective
(Peer reviewed; Journal article, 2020)Current decision making regarding whether to abort a high-risk aquaculture operation in a Norwegian fish farm is mainly experience-driven. The on-site personnel decides whether to start/delay/abort operations primarily ... -
Operational limits for floating-collar fish farms in waves and current, without and with well-boat presence
(Doctoral theses at NTNU;2018:367, Doctoral thesis, 2018)Dynamic response of a floating circular collar-type fish farm, without and with well-boat presence, in current, regular and irregular waves is analyzed. A modern design well boat and a realistic fish farm (with single cage) ... -
Operational profiles of ships in Norwegian waters: An activity-based approach to assess the benefits of hybrid and electric propulsion
(Journal article, 2018)Various regulations are imposed on shipping to increase energy efficiency and reduce environmental impacts. Alternative fuels and power systems are among the solutions for compliance with these regulations. The power system ... -
Operational Risk in the Norwegian Barents Sea
(Master thesis, 2013)With the estimated increase in demand for energy in the World by one-third within the next 25 years, the findings and estimates in the Arctic are of great importance. Equipment, procedures, training, facilities, logistics, ... -
Operational Safety: "The Platform Manager's Risk Control Tool"
(Master thesis, 2013)Avoiding accidents is important, especially in the petroleum industry where the outcome of a major accident can be serious harm to both people, the environment and to company property. There are requirements from the ... -
Operational sea passage scenario generation for virtual testing of ships using an optimization for simulation approach
(Peer reviewed; Journal article, 2020)In this paper, a model for implementation of sea passage operational scenarios in the context of simulation-based design of ships is presented. To facilitate the transition towards more energy-efficient shipping, the ability ... -
Opportunities for increased profit and reduced cost and emissions by service differentiation within container liner shipping
(Journal article; Peer reviewed, 2016)This paper investigates opportunities for increased profit and reduced emissions and cost by service differentiation within container shipping. Traditionally the strategy among the container lines has been profit maximization ... -
Optical Techniques for Hyperspectral Imaging of the Seafloor
(Doctoral theses at NTNU;2023:267, Doctoral thesis, 2023) -
Optimal Actuator Placement for Real-Time Hybrid Model Testing Using Cable-Driven Parallel Robots
(Peer reviewed; Journal article, 2021)In real-time hybrid model testing, complex ocean structures are emulated by fusing numerical modelling with traditional hydrodynamic model testing. This is done by partitioning the ocean structure under consideration into ... -
Optimal configuration of supply logistics for remote oil and gas fields
(Master thesis, 2013)The objective of this thesis has been to compare alternatives to improve the supply service for remote locations offshore. First the alternative of running a conventional supply service has been assessed, where the platform ... -
Optimal configuration problem identification of electrical power cable in tidal turbine farm via traveling salesman problem modeling approach
(Peer reviewed; Journal article, 2019)Electrical power cables in tidal turbine farms contribute a significant share to capital expenditure (CAPEX). As a result, the routing of electrical power cables connecting turbines to cable collector hubs must be designed ... -
An Optimal Energy Management System for Marine Hybrid Power Systems
(Chapter, 2021)This paper proposes an optimal control strategy for the energy management system (EMS) of marine hybrid power systems with the objective of reducing operational expenses (OPEX) and environmental emissions. Here, the OPEX ...