Browsing SINTEF Open by Author "Pedersen, Eilif"
Now showing items 1-10 of 10
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Distributed Co-Simulation of Maritime Systems and Operations
Sadjina, Severin Simon; Kyllingstad, Lars Tandle; Rindarøy, Martin; Skjong, Stian; Æsøy, Vilmar; Pedersen, Eilif (ASME digital collection;OMAE-17-1037, Journal article; Peer reviewed, 2018-05)Here, we present the concept of an open virtual prototyping framework (VPF) for maritime systems and operations that enables its users to develop reusable component or subsystem models, and combine them in full-system ... -
A distributed object-oriented simulator framework for marine power plants with weak power grids
Skjong, Stian; Pedersen, Eilif (Peer reviewed; Journal article, 2022)In this work, we discuss and demonstrate how multi-engine marine power plants with weak power grids efficiently can be set up and simulated in a distributed co-simulation framework. To facilitate configuration switching ... -
Energy conservation and coupling error reduction in non-iterative co-simulations
Sadjina, Severin Simon; Pedersen, Eilif (Journal article; Peer reviewed, 2019)When simulators are energetically coupled in a co-simulation, coupling errors alter the total energy of the full system. This distorts system dynamics, lowers the quality of the results, and can lead to instability. Using ... -
Energy conservation and power bonds in co-simulations: non-iterative adaptive step size control and error estimation
Sadjina, Severin Simon; Kyllingstad, Lars Tandle; Skjong, Stian; Pedersen, Eilif (Journal article; Peer reviewed, 2017-07)Here, we study the flow of energy between coupled simulators in a co-simulation environment using the concept of power bonds. We introduce energy residuals which are a direct expression of the coupling errors and, hence, ... -
Improving pre-turbine SCR systems in marine two stroke diesel engines using hybrid turbocharging: a numerical study of SCR operation range and system fuel efficiency
Nielsen, Jørgen Bremnes; Yum, Kevin Koosup; Pedersen, Eilif (Journal article; Peer reviewed, 2019-11-20)In this article, a performance evaluation of a novel system solution combining a hybrid turbocharger and a pre-turbine selective catalytic NOx reduction system is carried out. Pre-turbine selective catalytic system are ... -
Model Predictive Control of Marine Power Plants with Gas Engines and Battery
Bø, Torstein Ingebrigtsen; Vaktskjold, Erlend; Pedersen, Eilif; Mo, Olve (Journal article; Peer reviewed, 2019-01-31)The electric load demand on marine vessels is constantly changing during some operational modes, such as in harsh weather or complex operations. Therefore, diesel engines are typically used to handle these variations. Gas ... -
Model Predictive Control of Marine Power Plants with Gas Engines and Battery
Bø, Torstein Ingebrigtsen; Vaktskjold, Erlend; Pedersen, Eilif; Mo, Olve (Journal article; Peer reviewed, 2019) -
On the numerical stability in dynamical distributed simulations
Skjong, Stian; Pedersen, Eilif (Journal article; Peer reviewed, 2019-09)This work takes aim at studying numerical stability in distributed simulations through dynamic stabilityand stability criteria for explicit solvers. This is done by studying outer stability limits, for example stabilityconditions ... -
System-level modeling of marine power plant with PEMFC system and battery
Malekibagherabadi, Kamyar; Skjong, Stian; Bruinsma, Jogchum; Pedersen, Eilif (Peer reviewed; Journal article, 2022)This article presents a model of a marine power plant with hybrid power sources consisting of Proton Exchange Membrane Fuel Cells (PEMFCs) and batteries. The primary objective is to develop a system-level fidelity model ... -
Virtual Prototyping of Maritime Systems and Operations: Applications of Distributed Co-Simulations
Skjong, Stian; Rindarøy, Martin; Kyllingstad, Lars Tandle; Æsøy, Vilmar; Pedersen, Eilif (Journal article; Peer reviewed, 2017-12-08)In this work, we demonstrate the use of co-simulation technology in the maritime industry through four relevant examples of applications based on the outcome of the knowledge-building project Virtual Prototyping of Maritime ...