"uuid","repository link","title","author","contributor","publication year","abstract","subject topic","language","publication type","publisher","isbn","issn","patent","patent status","bibliographic note","access restriction","embargo date","faculty","department","research group","programme","project","coordinates"
"uuid:59b40d54-be2d-4d58-a27e-f01b74a3be4c","http://resolver.tudelft.nl/uuid:59b40d54-be2d-4d58-a27e-f01b74a3be4c","Unconventional bunker fuels, a safety comparison","Vredeveldt, A.W.; van Dijk, T.; van den Brink, A.","","2020","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. Liquefied natural gas has already entered the maritime domain, albeit initially primarily for pollutant emission reasons. Introducing alternative fuels on board ships has many far stretching implications in terms of safety. Hence a need exists to familiarize with the most important safety aspects, measures and regulations associated with usage of these alternative fuels. This report is the result of a safety assessment on the usage of alternative bunker fuels, in the context of the Green Maritime Methanol (GMM) project.","Bunkers; Fuels; Safety","en","report","TNO","","","","","","","","","","","","",""
"uuid:2c12d301-5358-40e0-984d-3a4ca3f1b9cb","http://resolver.tudelft.nl/uuid:2c12d301-5358-40e0-984d-3a4ca3f1b9cb","DE ENERGIETRANSITIE: EEN NIEUWE DIMENSIE IN ONS LANDSCHAP","van Roosmalen, J.A.M.; Sinke, W.C.; Uyterlinde, M.A.; van den Brink, R.W.; Eecen, P.J.; Londo, H.M.; Stremke, S.; van den Brink, A.; de Waal, R.","","2017","De transitie naar een duurzame energievoorziening heeft op veel terreinen ingrijpende gevolgen voor onze samenleving. Het gaat onder meer om een verandering van leefomgeving en landschap. Voor een succesvolle energietransitie is het nodig om nu al rekening te houden met de ruimtelijke vormgeving van nieuwe energielandschappen en de manier waarop die tot stand komen. Dit betekent dat alle betrokkenen samen energielandschappen ontwerpen waarin mens en technologie elkaar op een nieuwe manier ontmoeten. Een andere manier van denken: niet het ruimtelijk inpassen, maar het creëren van landschappen die door mensen worden gewaardeerd en economisch haalbaar zijn. Landschappen die zorgen dat de overgang naar een duurzame, koolstofarme toekomst breed gedragen wordt en snel kan plaatsvinden. ECN en WUR hebben hun kennis over energietechnologie en landschapsarchitectuur gebundeld in dit paper. Zo willen we een bijdrage leveren aan de discussie over wat wenselijk en noodzakelijk is om de energietransitie ruimtelijk in goede banen te leiden.","","nl","other","ECN","","","","","","","","","","","","",""
"uuid:64ccb906-a886-4f07-8c4b-9b2fc25c32d2","http://resolver.tudelft.nl/uuid:64ccb906-a886-4f07-8c4b-9b2fc25c32d2","Sustainable energy transition: A new dimension in the Dutch landscape - position paper ECN and WUR","van Roosmalen, J.A.M.; Sinke, W.C.; Uyterlinde, M.A.; van den Brink, R.W.; Eecen, P.J.; Londo, H.M.; Stremke, S.; van den Brink, A.; de Waal, R.","","2017","The transition towards a sustainable energy system will have far-reaching consequences in many areas of Dutch society. These include changes to the living environment and landscape. In order to achieve a successful energy transition, early consideration of the spatial design of new energy landscapes and the way in which they develop is essential. This means all parties involved coming together in a concerted effort to design energy landscapes in which people and technology meet each other in a new way. A new way of thinking is needed that goes beyond spatial integration, towards the creation of landscapes that people value and that are economically feasible. Landscapes that help ensuring that the transition to a sustainable, low-carbon future is supported and can take place rapidly. In this paper, ECN and WUR have combined their knowledge about energy technology and landscape architecture. By doing so, we aim to contribute to the debate about what is desirable and necessary in order to ensure that the energy transition is on the right track from a spatial perspective.","","en","other","ECN","","","","","","","","","","","","",""
"uuid:9621bc47-399f-4b3e-ba1f-77296a4ff676","http://resolver.tudelft.nl/uuid:9621bc47-399f-4b3e-ba1f-77296a4ff676","Nonequilibrium Thermodynamics of Mesoscopic Systems","Dekker, H.; Maassen van den Brink, A.; TNO Fysisch en Elektronisch Laboratorium ","","1999","The Markovian dynamics of a Brownian particle is derived in the case that the local temperature is a stochastic variable. The isolated mesoscopic ""particle plus environment"" system is analyzed in the microcanonical ensemble by means of nonlinear-process projection methods. The ensuing generalized Kramers Fokker-Planck equation involves a thermodynamic potential of mean force that is different from the canonical free energy, and the conditional entropy (or availability) emerges as the relevant steady-state potential. By coupling the system to a heat bath, we provide a microscopic foundation for the phenomenological theory of nonisothermal activation in mesoscopic systems. In the second part of this article, we then prove the existence of an availability potential governing the nonisothermal features of a Josephson junction in a SQUID, by studying the Josephson internal energy (and entropy) for T ↑ Tc in a model of two BCS superconductors coupled by a tunneling Hamiltonian. The predicted periodic dependence of the junction's Tc as a function of the flux in the SQUID has meanwhile been confirmed experimentally.","Josephson junction; Nonequilibrium statistical physics; Nonisothermal stochastic process; Projection operators; Superconducting phase transition","en","article","","","","","","","","","","","","","",""
"uuid:bdd21d14-6a0a-489f-bb21-414f9aec527f","http://resolver.tudelft.nl/uuid:bdd21d14-6a0a-489f-bb21-414f9aec527f","Nonisothermal activation: Nonlinear transport theory","Dekker, H.; Maassen van den Brink, A.; TNO Fysisch en Elektronisch Laboratorium ","","1998","We present the statistical mechanical foundation of nonisothermal stochastic processes, thereby generalizing Kramers' Fokker-Planck model for thermal activation and providing a microscopic context for Rolf Landauer's original ideas on state-dependent diffusion. By applying projection operator methods suitable for nonlinear mesoscopic systems coupled to a heat bath, we develop the theory of classical Brownian motion (in position and momentum) including the local temperature as a dynamical variable. The ensuing stochastic process involves a microcanonical effective mean force different from the free energy gradient, while the equilibrium potential is given by the availability. The effective spatial diffusion coefficient in the Smoluchowski limit is calculated. The microcanonical analysis corresponds to the case of small thermal conductance","Physics","en","article","","","","","","","","","","","","","",""
"uuid:dd48a68a-4b89-4a89-b5e3-a7a951cc2525","http://resolver.tudelft.nl/uuid:dd48a68a-4b89-4a89-b5e3-a7a951cc2525","Two- and four-point Kapitza resistance between harmonic solids","Maassen van den Brink, A.; Dekker, H.; TNO Fysisch en Elektronisch Laboratorium ","","1996","The calculation of the Kapitza boundary resistance between dissimilar harmonic solids has since long (Little [Can. J. Phys. 37 (1959) 334]) suffered from a paradox: this resistance erroneously tends to a finite value in the limit of identical solids. We resolve this paradox by calculating temperature differences in the final heat-transporting state, rather than with respect to the initial state of local equilibrium. We thus derive an exact, paradox-free formula for the boundary resistance. We compare the definition of local temperatures in terms of ""nonequilibrium"" energy densities with the (phase-sensitive) measurement of such a temperature by attaching a probe to the system, and find considerable agreement between the two. The analogy to ballistic electron transport is explained.","Physics; Kapitza resistance; Heat transport; Temperature measurement","en","article","","","","","","","","","","","","","",""
"uuid:c2c9e9dc-331b-4893-94a8-3ee22ea46f7c","http://resolver.tudelft.nl/uuid:c2c9e9dc-331b-4893-94a8-3ee22ea46f7c","Local temperature measurement and Kapitza boundary resistance","Maassen van den Brink, A.; Dekker, H.; TNO Fysisch en Elektronisch Laboratorium ","","1996","A calculation of the Kapitza boundary resistance between harmonic solids has been noted previously (Little, Can. J. Phys. 37 (1959) 334; Leung and Young, Phys. Rev. B 36 (1987) 4973) to lead to apparently paradoxical results in the limit of identical solids: instead of vanishing, the resistance tends to a finite limit. We resolve this paradox by calculating temperature differences in the final heat-transporting state of the system, i.e., not in the initial state of local equilibrium. For a quantum mechanical model of an interface between harmonic solids with temperature probes attached, exact calculations relate the probe temperatures to non-equilibrium energy densities. The analogy with two- and four-terminal resistance measurements in ballistic electron transport is also discussed.","Physics; Acoustic wave transmission; Electron transport properties; Heat transfer; Interfaces (materials); Solids; Temperature measurement; Ballistic electron transport; Harmonic solids; Kapitza boundary resistance; Phonons","en","article","","","","","","","","","","","","","",""
"uuid:1dd27d70-b36f-41a7-a018-9b05959ca2fd","http://resolver.tudelft.nl/uuid:1dd27d70-b36f-41a7-a018-9b05959ca2fd","Nonequilibrium thermodynamics of Josephson devices","Maassen van den Brink, A.; Dekker, H.; TNO Fysisch en Elektronisch Laboratorium ","","1996","The rapid increase of the Josephson free energy as the temperature of a tunneling junction drops below the superconducting transition temperature Tc is shown to make this transition of first order in a system in which the phase difference φ across the junction is constrained to have a nonzero value. Taking this effect into account, we introduce an availability potential governing the nonisothermal dynamics of the junction which, in contrast with previous results, has no artifacts like latent heat being released upon entering the - high temperature - normal state or a value in this state which depends on the - superconducting - phase difference. The thermodynamic analysis is preceded by a detailed calculation of the Josephson coupling in a model of two ideal BCS superconductors coupled by a tunneling Hamiltonian.","Physics","en","article","","","","","","","","","","","","","",""
"uuid:3cb58cb4-55ef-4356-a13c-6d77b2ae09bf","http://resolver.tudelft.nl/uuid:3cb58cb4-55ef-4356-a13c-6d77b2ae09bf","Nonlocal mixing in the turbulent boundary layer (abstract)","Dekker, H.; de Leeuw, G.; Maassen van den Brink, A.; TNO Fysisch en Elektronisch Laboratorium ","","1996","","Physics","en","article","","","","","","Abstract only","","","","","","","",""
"uuid:b88a9c6f-06fd-4f5c-b71e-15a60d516be8","http://resolver.tudelft.nl/uuid:b88a9c6f-06fd-4f5c-b71e-15a60d516be8","Boundary-layer turbulence as a kangaroo process","Dekker, H.; de Leeuw, G.; Maassen van den Brink, A.; TNO Fysisch en Elektronisch Laboratorium ","","1995","A nonlocal mixing-length theory of turbulence transport by finite size eddies is developed by means of a novel evaluation of the Reynolds stress. The analysis involves the contruct of a sample path space and a stochastic closure hypothesis. The simplifying property of exhange (strong eddies) is satisfied by an analytical sampling rate model. A nonlinear scaling relation maps the path space onto the semi-infinite boundary layer. The underlying near-wall behavior of fluctuating velocities perfectly agrees with recent direct numerical simulations. The resulting integro-differential equation for the mixing of scalar densities represents fully developed boundary-layer turbulence as a nondiffusive (Kubo-Anderson or kangaroo) type of stochastic process. The model involves a scaling exponent (with → in the diffusion limit). For the (partly analytical) solution for the mean velocity profile, excellent agreement with the experimental data yields 0.58. © 1995 The American Physical Society.","Physics","en","article","","","","","","","","","","","","","",""
"uuid:db5c7b6a-d9a2-4a4d-be4e-2cd2f7b828c2","http://resolver.tudelft.nl/uuid:db5c7b6a-d9a2-4a4d-be4e-2cd2f7b828c2","Nonlocal stochastic mixing-length theory and the velocity profile in the turbulent boundary layer","Dekker, H.; de Leeuw, G.; Maassen van den Brink, A.; TNO Fysisch en Elektronisch Laboratorium ","","1995","Turbulence mixing by finite size eddies will be treated by means of a novel formulation of nonlocal K-theory, involving sample paths and a stochastic closure hypothesis, which implies a well defined recipe for the calculation of sampling and transition rates. The connection with the general theory of stochastic processes will be established. The relation with other nonlocal turbulence models (e.g. transilience and spectral diffusivity theory) is also discussed. Using an analytical sampling rate model (satisfying exchange) the theory is applied to the boundary layer (using a scaling hypothesis), which maps boundary layer turbulence mixing of scalar densities onto a nondiffusive (Kubo-Anderson or kangaroo) type stochastic process. The resulting transpport equation for longitudinal momentum Px ≡ ρ{variant}U is solved for a unified description of both the inertial and the viscous sublayer including the crossover. With a scaling exponent ε ≈ 0.58 (while local turbulence would amount to ε → ∞) the velocity profile U+ = f{hook}(y+) is found to be in excellent agreement with the experimental data. Inter alia (i) the significance of ε as a turbulence Cantor set dimension, (ii) the value of the integration constant in the logarithmic region (i.e. if y+ → ∞), (iii) linear timescaling, and (iv) finite Reynolds number effects will be investigated. The (analytical) predictions of the theory for near-wall behaviour (i.e. if y+ → 0) of fluctuating quantities also perfectly agree with recent direct numerical simulations","Physics","en","article","","","","","","","","","","","","","",""
"uuid:263af3a4-633a-469d-b81f-4284e4d32a68","http://resolver.tudelft.nl/uuid:263af3a4-633a-469d-b81f-4284e4d32a68","Temperature relaxation at the Kapitza-boundary-resistance paradox","Maassen van den Brink, A.; Dekker, H.; TNO Fysisch en Elektronisch Laboratorium ","","1995","The calculation of the Kapitza boundary resistance between dissimilar harmonic solids has for a long time [W. A. Little, Can. J. Phys. 37, 334 (1959)] presented a paradox: this resistance erroneously tends to a finite value in the limit of identical solids. We resolve this paradox by calculating temperature differences in the final heat-transporting state, rather than with respect to the initial state of local equilibrium. For a one-dimensional model we thus derive an exact, paradox-free formula for the boundary resistance. The analogy to ballistic electron transport is explained","Physics","en","article","","","","","","","","","","","","","",""
"uuid:c837fc1f-fed5-48c2-bdb2-8fd48df1bab0","http://resolver.tudelft.nl/uuid:c837fc1f-fed5-48c2-bdb2-8fd48df1bab0","Stochastic Theory of Turbulence Mixing by Finite Eddies in the Turbulent Boundary Layer","Dekker, H.; de Leeuw, G.; Maassen van den Brink, A.; TNO Fysisch en Elektronisch Laboratorium ","","1995","Turbulence mixing is treated by means of a novel formulation of nonlocal K-theory, involving sample paths and a stochastic hypothesis. The theory simplifies for mixing by exchange (strong-eddies) and is then applied to the boundary layer (involving scaling). This maps boundary layer turbulence onto a nondiffusive (Kubo-Anderson or kangaroo) type stochastic process. The theory involves an exponent epsilon (with the significance of a Cantor set dimension if epsilon is less than 1). With expsilon approximately equal to 0.58 (epsilon approaches infinity in the diffusion limit) the ensuing mean velocity profile U-bar+ = f(y+) is in perfect agreement with experimental data. The near-wall (y approaches 0) velocity fluctuations agree with recent direct numerical simulations","Physics; Turbulent boudary layer; Stochastic processes; Turbulent mixing; Flow theory; Velocity distribution; Reynolds equation; Navier-Stokes equations","en","conference paper","Kluwer Academic Publishers","","","","","","","","","","","","",""