Browsing NTNU Open by Subject "Marin teknikk, Marint maskineri"
Now showing items 1-14 of 14
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A Method for Determining the Mode Shapes from a Finite Element Model for Use in a Finite-Mode Vibration Simulation Model
(Master thesis, 2016)In this thesis, a methodology for retrieving mathematical expressions of the mode shapes of a crankshaft based on numerical data yielded by a finite element model is presented and tested. The mode functions should be used ... -
An Experimental Study on the Application of Fish Oil as Fuel
(Master thesis, 2015)Two fish based bio oils in blends with MGO (Marine Gas Oil) have been tested in a constant volume combustion chamber (CVCC). The CVCC has optical access and a high-speed camera has captured images of the spray formation. ... -
Design Calculations for a Selective Catalytic Reduction Unit - Development of a Simulation Model and Design Algorithm for a Marine Selective Catalytic Reduction Unit for IMO Tier III Compliance
(Master thesis, 2015)The global emission of nitrogen oxides (NOx) from the shipping industry was approximately 15% in the period from 2007-2012, i.e. shipping is a major source of these emissions. Since 2000, the International Maritime ... -
Design of a Riser Equipment Handling System for a Well Intervention Unit
(Master thesis, 2012)A Well Intervention Unit performs subsea intervention on different water depths ranging from approximately 800-3000 meters. During a change of operations sites, between two neighbouring wells at different water depths, the ... -
Design Optimization of a Low Pressure LNG Fuel Supply System
(Master thesis, 2015)In 2014 there were 50 liquefied natural gas (LNG) fuelled ships in operation and around 70 on order worldwide. LNG proves to emit less pollution and considering the present and future emission regulations and optimistic ... -
DESIGN, MODELING AND CONTROL OF A GENERIC CRANE FOR MARINE APPLICATIONS
(Master thesis, 2017)This thesis is presenting the results and processes of designing a scaled down crane model that is intended for studying of crane behavior and control systems. The design process is performed as an iteration process with ... -
Development of a Rotordynamic Test Rig for Slender Shafts with Large Disks
(Master thesis, 2015)The main focus of this thesis is the review and update of a rotordynamic test rig which originally was unsafe to run at high speeds. The rig was recently developed at the department of marine technology at NTNU. The ... -
Dynamic Modelling, Vibration and Fatigue Analysis of Slow Rotating Propulsion Systems
(Master thesis, 2018)In recent years, shipping has experienced a technical transformation motivated by its impact on the environment and the desire to reduce operational costs. Engines with lower power ranges and slow steaming are two examples. ... -
Experimental Study of High-Pressure Gas Injection Using Optical Methods
(Master thesis, 2018)This thesis first presents the role of LNG as a potential means to reduce marine emissions and get international shipping into compliance with new regulations set by regulatory authorities. An overview of different gas ... -
Improvement of Thermodynamic Properties in Combustion Research Facility with Symmetrical Ignition Sources
(Master thesis, 2016)The Constant Volume Combustion Chamber (CVCC) at the Combustion Laboratory at the Institute of Marine Technology has shown: (I) Temperature related issues that reduce reproducibility within test series. (II) The environment ... -
Mechanical Design of Massive Genset-Modules
(Master thesis, 2017)The research conducted in this thesis aims to develop a mechanical design of a large electric propulsion system. This electric propulsion system consisting of multiple genset operating together to reduce operation cost and ... -
Modeling and Analysis of a 2-Stage Turbocharger
(Master thesis, 2015)2-trinns turbolader konseptet som brukes i denne masteroppgaven, er to separate turboladere koblet i serie. Luften går gjennom en lavtrykkskompressor, og en høytrykkskompressor, før den kommer inn på innsugingsventilene. ... -
Numerical Simulation of Twin Nozzle Injectors
(Master thesis, 2015)Fuel injectors for marine applications have traditionally utilized nozzles with symmetric equispaced orifice configuration. But in light of the new marine emission legislations the twin nozzle concept has arisen. The twin ... -
On Developing a Digital Twin for Fault Detection in Drivetrains of Offshore Wind Turbines
(Master thesis, 2018)This master thesis considers fault detection of drivetrains in offshore wind turbines through digital twin approach. A literature review regarding current operations concerning maintenance approaches in today s practices ...