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Ros, J.A. (author), Doedée, V. (author), van den Akker, J.T. (author), Vredeveldt, A.W. (author), Linders, M.J.G. (author), Goetheer, E.L.V. (author), Garcia Moretz-Sohn Monteiro, J. (author)
The maritime industry has set clear objectives towards reducing greenhouse gas emissions in the coming decades. Ship based carbon capture (SBCC) could play a large role in reducing these emissions on the short term. This study gives an update on the work that has been conducted towards carbon capture and storage on LNG fuelled vessels. This is...
conference paper 2021
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van Lieshout, P.S. (author), de Jonge, V. (author), Vredeveldt, A.W. (author), Finner, S. (author)
Introducing alternative fuels on board has many far stretching implications for ship operators, authorities, fuel suppliers, equipment suppliers, engine manufacturers, ship builders and naval architects. In most cases such parties are not familiar with these new fuels. Hence a need exists for them for a means to quickly familiarize oneself with...
report 2020
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Vredeveldt, A.W. (author), van Dijk, T. (author), van den Brink, A. (author)
There is a strong urge to replace conventional bunker fuels such as heavy fuel oil (HFO), marine diesel oil (MDO) and marine gas oil (MGO) by ‘fuels’ which do not give a net emission of greenhouse gasses or emit pollutants when combusted. Candidate fuels are methanol, dimethyl ether (DME), ammonia, pressurised hydrogen and liquefied hydrogen....
report 2020
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Zomer, G.R. (author), Finner, S.P. (author), Harmsen, J. (author), Vredeveldt, A.W. (author), van Lieshout, P.S. (author)
Increasing pressure on shipping to contribute to reduce GHG emissions is changing the landscape for marine fuels. In the quest for sustainable alternative fuels, methanol is one of the fuels that has a special interest in the Green Maritime Methanol project. This report focuses on the operational aspects of using methanol, in terms of...
report 2020
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Antao, P. (author), Hoogeland, M.G. (author), Vredeveldt, A.W. (author), Santos, F.P. (author)
Crewmembers are exposed to high work pressure. Pressure on freight tariffs motivates cost reduction in manning and maintenance, whilst societal developments show decreasing tolerances towards incidents. In conjunction with the developments towards autonomous shipping, the need for continuous and unmanned inspection increases. Considerable...
article 2019
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Hoogeland, M.G. (author), van Dijk, T. (author), Vredeveldt, A.W. (author)
Corrosion is a main source of degradation of most offshore and ship structures. Especially ballast tanks are vulnerable to corrosion. Protection is pro-vided by coating systems, postponing the onset of uniform corrosion. It is there-fore essential to have a coating system in place and intact. Inspecting ballast tanks for the integrity of the...
conference paper 2019
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Broos, E.J. (author), Rhijnsburger, M.P.M. (author), Vredeveldt, A.W. (author), Hoebee, W. (author)
The PIANC ‘Guidelines for the design of fender systems’ MarCom report of WG 33 – 2002 specifies allowable maximum hull pressures for various vessels. Fender manufactures provide maximum hull pressures resulting from their fenders. The stated maximum hull pressures of cylindrical fenders exceed the recommended values by PIANC 2002 for gas...
conference paper 2018
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van Kempen, E.C. (author), Vredeveldt, A.W. (author), Hoogeland, M.G. (author)
A three degree of freedom external dynamics calculation model for ship grounding has been made, which is used to predict the extent of bottom raking damage and the grounding force with associated decelerations of the ship in terms of surge, sway and yaw. When the ship decelerates, caused by a grounding event, these motions can be logged through...
conference paper 2018
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Hulsbosch-Dam, C.E.C. (author), Atli-Veltin, B. (author), Kamperveen, J. (author), Velthuis, H. (author), Reinders, J.E.A. (author), Spruijt, M.P.N. (author), Vredeveldt, A.W. (author)
Mechanical behaviour of a Liquefied Natural Gas (LNG) tank and the thermodynamic behaviour of its containment under extreme heat load - for instance when subjected to external fire source as might occur during an accident -Are extremely important when addressing safety concerns. In a scenario where external fire is present and consequent release...
conference paper 2017
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Haag, S.R. (author), Hoogeland, M.G. (author), Vredeveldt, A.W. (author)
Instantaneous insight into the structural damage sustained by a ship running aground, can be of great aid in the decision making following such a disaster. It should be possible to distil the extent of structural damage from acceleration measurement data of the entire vessel. Such measurements could possibly even be done using a simple...
conference paper 2017
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Hoogeland, M.G. (author), Vredeveldt, A.W. (author)
Traditionally, a failure strain criterion is used in crash simulations in the maritime and offshore industry. More sophisticated methods for multi-axial stress states are based on the Forming Limit Diagram and the Fracture Forming Limit Diagram (FFLD). The diagrams are derived for the steel sheet forming industry, such as car parts. Few tests...
conference paper 2017
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Hoogeland, M.G. (author), Vredeveldt, A.W. (author), Leon-Morales, C.F. (author)
Safety of ships and offshore installations is continuously an area of attention for owners, operators and authorities. Standard practice of today requires regular inspections of the hull and machinery. The results of inspections as carried out by various parties may well not be shared amongst each other. This means that enormous amounts of data...
conference paper 2016
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Autar, N. (author), Hoogeland, M.G. (author), Vredeveldt, A.W. (author)
Current practice in crash analysis on maritime structures uses rupture strain as a single parameter failure criterion. The criterion assumes a plane strain condition irrespective of the actual stress state. However ship and offshore structures, exposed to actual collisions or groundings may well deform in different ways and exhibit other strain...
conference paper 2016
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Vredeveldt, A.W. (author)
article 2015
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Alti-Veltin, B. (author), Vredeveldt, A.W. (author)
Calculation of the energy absorption of marine structures at certain impact scenarios by means of finite element analysis is regularly being performed by researchers. Recent studies at TNO, focusing on the vulnerability of a liquefied natural gas tank, showed that in collisions the deformation of the structures is much more complex compared to...
conference paper 2015
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Voormeeren, L.O. (author), Atli-Veltin, B. (author), Vredeveldt, A.W. (author)
The increasing use of liquefied natural gas (LNG) as bunker fuel in ships, calls for an elaborate study regarding the risks involved. One particular issue is the vulnerability of cryogenic LNG storage tanks with respect to impact loadings, such as ship collisions and dropped objects. This requires an understanding of the impact resistance of the...
conference paper 2014
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Voormeeren, L.O. (author), Tang, L. (author), Walters, C.L. (author), Vredeveldt, A.W. (author)
Crash analysis in the maritime and offshore industry typically relies on failure criteria that are based only on uniaxial states of stress. However, it is well known that the failure strain depends on the state of stress, and the state of stress in ship collisions is not necessarily uniaxial. Although more detailed failure models are routine in...
conference paper 2014
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Atli-Veltin, B. (author), Vredeveldt, A.W. (author)
Shipping is gradually embracing natural gas as bunker fuel. The most viable way to store natural gas on board is in its liquid form. Gas needs to be cooled to cryogenic temperatures and in practice moderately pressurized. On board ships, solely double walled pressure tanks are used for this purpose. Loss of containment due to a collision, is one...
conference paper 2014
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Vredeveldt, A.W. (author), Schipperen, J.H.A. (author), Nassár, Q.H.A. (author), Spaans, C.A. (author)
The paper describes how high energy crashworthiness with respect to ship collisions of a jacket can be predicted through explicit finite element analyses. The classical issue of the material models is discussed. In addition the topics of global jacket dynamics and the definition of failure are discussed. The structural arrangement of the jacket...
conference paper 2013
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Vredeveldt, A.W. (author), Voormeeren, L.O. (author)
public lecture 2013
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