Searched for: department:"Process%5C+and%5C+Energy"
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Sam, Alan (author), Hartkamp, R.M. (author), Kannam, Sridhar Kumar (author), Sathian, Sarith P. (author)
) in cylindrical nanopores using equilibrium molecular dynamics (EMD) simulations, following the approach proposed by Sokhan and Quirke for planar channels [39]. Using this approach, we determined the slip length of water in carbon nanotubes (CNTs) of various...
journal article 2018
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Çelik, M. (author), Paulussen, Geert (author), van Erp, Dennis (author), de Jong, W. (author), Boersma, B.J. (author)
Rotating wickless and stationary capillary cylindrical heat pipes are widely used heat transfer devices. Transient behavior of such heat pipes has been investigated numerically with computational fluid dynamics and lumped parameter models. In this paper, the advantages of both methods are combined into a novel engineering model that is low in...
journal article 2018
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Jamali, S.H. (author), Hartkamp, R.M. (author), Bardas, C. (author), Söhl, J. (author), Vlugt, T.J.H. (author), Moultos, O. (author)
A method is proposed for calculating the shear viscosity of a liquid from finite-size effects of self-diffusion coefficients in Molecular Dynamics simulations. This method uses the difference in the self-diffusivities, computed from at least two system sizes, and an analytic equation to calculate the shear viscosity. To enable the efficient...
journal article 2018
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Prasad K, Vishnu (author), Kannam, Sridhar Kumar (author), Hartkamp, R.M. (author), Sathian, Sarith P. (author)
Molecular dynamics simulations are widely employed to analyze water and ion permeation through nanoporous membranes for reverse osmosis applications. In such simulations, water models play an important role in accurately reproducing the properties of water. We investigated the water and ion transport across a hydroxyl (OH) functionalized...
journal article 2018
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Hartkamp, R.M. (author), Biance, A.-L. (author), Fu, L. (author), Dufrêche, Jean François (author), Bonhomme, O. (author), Joly, L. (author)
Surface charge controls many static and dynamic properties of soft matter and micro/nanofluidic systems, but its unambiguous measurement forms a challenge. Standard characterization methods typically probe an effective surface charge, which provides limited insight into the distribution and dynamics of charge across the interface, and which...
journal article 2018
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Di Marcello, M. (author), Tsalidis, G.A. (author), Spinelli, G. (author), de Jong, W. (author), Kiel, J.H.A. (author)
Torrefaction is a promising biomass upgrading technology as it makes biomass more coal alike and offers benefits in logistics and handling operations. Gasification is an attractive thermochemical conversion technology due to its flexibility in the product gas end-uses. Therefore, it is valuable to investigate whether additional benefits are...
journal article 2017
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Rajegowda, Rakesh (author), Kannam, Sridhar Kumar (author), Hartkamp, R.M. (author), Sathian, Sarith P. (author)
Thermal-gradient induced transport of ionic liquid (IL) and water droplets through a carbon nanotube (CNT) is investigated in this study using molecular dynamics simulations. Energetic analysis indicates that IL transport through a CNT is driven primarily by the fluid-solid interaction, while fluid-fluid interactions dominate in water-CNT...
journal article 2017
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Sengupta, U. (author), Nemati, H. (author), Boersma, B.J. (author), Pecnik, R. (author)
This work investigates fully developed turbulent flows of carbon-dioxide close to its vapour-liquid critical point in a channel with a hot and a cold wall. Two direct numerical simulations are performed at low Mach numbers, with the trans-critical transition near the channel centre and the cold wall, respectively. An additional simulation...
journal article 2017
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Sam, Alan (author), Kannam, Sridhar Kumar (author), Hartkamp, R.M. (author), Sathian, Sarith P. (author)
Although the importance of temperature control in nonequilibrium molecular dynamics simulations is widely accepted, the consequences of the thermostatting approach in the case of strongly confined fluids are underappreciated. We show the strong influence of the thermostatting method on the water transport in carbon nanotubes (CNTs) by...
journal article 2017
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Heyes, P.J. (author), Anastasakis, K. (author), De Jong, W. (author), Van Hoesel, A. (author), Roebroeks, W. (author), Soressi, M. (author)
Several Mousterian sites in France have yielded large numbers of small black blocs. The usual interpretation is that these ‘manganese oxides’ were collected for their colouring properties and used in body decoration, potentially for symbolic expression. Neanderthals habitually used fire and if they needed black material for decoration, soot and...
journal article 2016
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Schutte, K.C.J. (author)
doctoral thesis 2016
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Ma, L. (author)
The objective of the research presented in this thesis is development and validation of predictive models or modeling approaches of liquid fuel combustion (spray combustion) in hot-diluted environments, known as flameless combustion or MILD combustion. The goal is to combine good physical insight, appropriate numerical methods and good software...
doctoral thesis 2016
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Yakaboylu, O. (author)
In the following decades, biomass will play an important role among the other renewable energy sources globally as it is already the fourth largest energy resource after coal, oil and natural gas. It is possible to obtain gaseous, liquid or solid biofuels from biomass via thermochemical or biochemical conversion routes. Among them, gasification...
doctoral thesis 2016
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Krintiras, G. (author)
To meet the increasing need for protein-rich food of an ever growing population, plant-based proteins are being utilized in meat products as replacements for animal-based proteins. Legumes such as soy can serve as an alternative protein source, by featuring both high protein content (36%) and protein functionality (gelation). Nowadays various...
doctoral thesis 2016
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Oyarzún Rivera, B.A. (author)
Monte Carlo simulations were performed in the NPT ensemble and in an expanded version of the Gibbs ensemble. The phase behavior of single-phase hard-sphere chain fluids was determined using NPT ensemble simulations, while the isotropic-nematic phase equilibrium of single-component and binary mixtures of hard-sphere and Lennard-Jones fluids was...
doctoral thesis 2016
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Tomas, J.M. (author), Pourquie, M.J.B.M. (author), Jonker, H.J.J. (author)
Large-eddy simulations (LES) are used to investigate the effect of stable stratification on rural-to-urban roughness transitions. Smooth-wall turbulent boundary layers are subjected to a generic urban roughness consisting of cubes in an in-line arrangement. Two line sources of pollutant are added to investigate the effect on pollutant dispersion...
journal article 2016
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Fiscaletti, D. (author)
The present work is an experimental and numerical investigation of the small-scale motions in turbulent free-shear flows. In the far-field turbulence of a jet at high Reynolds number (Re? = 350) hot-wire anemometry (HWA) is applied to measure time series of flow velocity. By filtering these time series, large- and small-scale velocity...
doctoral thesis 2016
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Fan, Z. (author)
The aim of the study described in this thesis is to obtain a profound understanding of transformations in NCs at the atomic level, by performing molecular simulations for such transformations, and by comparing the simulation results with available experimental high resolution transmission electron microscopy (HRTEM) data to validate the...
doctoral thesis 2016
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Stoop, A.H. (author), Bakker, T.W. (author), Kramer, H.J.M. (author)
In several studies the beneficial influence of pre-treatment of waste activated sludge with cavitation on the biogas production was demonstrated. It is however, still not fully certain whether this effect should be mainly contributed to an increase in conversion rate of organics into biogas by anaerobic bacteria, and how much cavitation...
conference paper 2015
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Brunchi, C. (author)
The aim of this thesis is to study multicomponent adsorption equilibria in the liquid phase. Most experimental data on adsorption reported in the literature are for binary systems with only a handful of studies on ternary systems. This is mainly because multicomponent adsorption data are considerably more difficult to measure than pure component...
doctoral thesis 2015
Searched for: department:"Process%5C+and%5C+Energy"
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