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- Hengstermann, A. (author) doctoral thesis 2010
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Tortosa Masiá, A.A. (author)This PhD thesis deals with the theoretical, experimental and modeling work which was performed to study deposition during biomass and waste co-combustion in pulverised coal facilities. Fossil fuels dominate the current energy scenario. Increasing concerns about fossil fuels availability and about the impact of their extensive use on the...doctoral thesis 2010
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Giuntoli, J. (author)This dissertation deals with the characterization of several biomass materials under thermal conversion conditions using small--scale equipment. The fuels are tested under the conditions of slow and fast heating rate pyrolysis and combustion, with the main goal of investigating the chemistry of fuel--bound nitrogen. New energy policies put...doctoral thesis 2010
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Budhysutanto, W.N. (author), Van Den Bruele, F.J. (author), Rossenaar, B.D. (author), Van Agterveld, D. (author), Van Enckevort, W.J.P. (author), Kramer, H.J.M. (author)Donut-like crystals of Mg–Al layered double hydroxides (LDH) are synthesized using a hydrothermal method with microwave heating. This morphology provides enlargement of the specific surface area of the {h k 0} faces, needed for adsorption application. The growth mechanism for donut-shaped crystals is proposed on the basis of AFM and STEM–EDX...journal article 2010
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Glavatskiy, K.S. (author), Bedeaux, D. (author)We present a theory that describes the transport properties of the interfacial region with respect to heat and mass transfer. Postulating the local Gibbs relation for a continuous description inside the interfacial region, we derive the description of the Gibbs surface in terms of excess densities and fluxes along the surface. We introduce...journal article 2010
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Lubary Fleta, M. (author)Milk fat has a very rich chemical composition and unique organoleptic properties. It is the only relevant natural source of short-chain fatty acids (C4 to C10), which have been associated to several health effects. Milk fat also contains a series of minor, bioactive lipids with anticarcinogenic, antidepressant and bactericidal activity. In the...doctoral thesis 2010
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Boersma, B.J. (author), Breugem, W.P. (author)In this paper we consider a fully developed turbulent flow in a round pipe with a small inner annulus. The diameter of the inner annulus is less than 10% of the diameter of the outer pipe. As a consequence, the surface area of the inner pipe compared to the outer pipe is small. The friction exerted by the wall on the flow is proportional to the...journal article 2010
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McGarrity, E.S. (author), Thijssen, J.M. (author), Besseling, N.A.M. (author)We have applied a fluids density functional theory based on that of Yu and Wu [J. Chem. Phys. 116, 7094 (2002)] to treat reversible supramolecular polymers near a hard surface. This approach combines a hard-sphere fluids density functional theory with the first-order thermodynamic perturbation theory of Wertheim. The supramolecular polymers are...journal article 2010
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Elsinga, G.E. (author), Westerweel, J. (author), Scarano, F. (author), Novara, M. (author)The paper discusses bias errors introduced in Tomographic-PIV velocity measurements by the coherent motion of ghost particles under some circumstances. It occurs when a ghost particle is formed from the same set of actual particles in both reconstructed volumes used in the cross-correlation analysis. The displacement of the resulting ghost...journal article 2010
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- Toonssen, R. (author) doctoral thesis 2010
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Lakerveld, R. (author)Crystallization is historically one of the most important separation and product formation technologies in chemical industry. The future impact of crystallization is expected to increase as new high-added value products are often in crystalline form and need to comply with increasingly stringent product quality requirements. This calls for...doctoral thesis 2010
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Van Spronsen, J. (author)Most chemical processes involve solvents in the reaction and the separation step. These solvents give rise to a heavy environmental and economical burden. Moreover, these solvents are based on non-sustainable resources like petroleum. The aim of this thesis has been to develop a number of alternative processes based upon green (sustainable)...doctoral thesis 2010
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Koschatzky, V. (author), Westerweel, J. (author), Boersma, B.J. (author)The aim of the present study is to compare two different acoustic analogies applied to time-resolved particle image velocimetry (PIV) data for the prediction of the acoustic far-field generated by the flow over a rectangular cavity. Recent developments in laser and camera technology allow the possibility to extend PIV to the study of...conference paper 2010
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Castillo, J.M. (author)The adsorption of water on hydrophobic zeolites such as silicalite and on hydrophilic MOF (metal-organic framework), Cu-BTC, is completely different, as described in chapters 2 and 4. While in hydrophobic materials water adsorption isotherms are very steep and difficult to measure, both experimentally and by simulation, in hydrophilic materials...doctoral thesis 2010
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Semin, N.V. (author), Poelma, C. (author), Drost, S. (author), Westerweel, J. (author)The potential of in-line digital holography to locate and measure the size and position of filaments, i.e. thin wire-like objects, distributed throughout a thick volume has been investigated. In this paper two approaches are introduced to study filaments of varying diameter. (1) It is shown analytically and experimentally that for a gradual...journal article 2010
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Van Wijngaarden, J.T. (author), Scheidelaar, S. (author), Vlugt, T.J.H. (author), Reid, M.F. (author), Meijerink, A. (author)Downconversion of one visible photon into two infrared photons has been reported for the lanthanide ion couple (Pr3+, Yb3+) in a variety of host lattices. The mechanism responsible for downconversion is controversial and has been reported to be either a two-step energy transfer process (via two first-order transfer steps, the first being cross...journal article 2010
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Ammerlaan, R. (author), Van den Hill, E.J. (author), Kaas, A.W.S. (author), Verburg, M.W. (author)In this study a 1.1 MW fluidized bed combustor is modeled. A literature study is performed on aspects which determine the characteristics of the combustor. A model is set up and calculations for the design of the Fluidized Bed Combustor (FBC) are performed. Characteristics are calculated for the Fluidized Bed (FB) and Freeboard Zone (FBZ)....report 2010
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Durka, T. (author), Stefanidis, G.D. (author), Van Gerven, T. (author), Stankiewicz, A. (author)The accuracy and reproducibility of temperature measurements in solid materials under microwave heating are investigated in this work using two of the most celebrated temperature measurement techniques, namely fiber optic probes (FO) and infrared (IR) sensors. Two solid materials with a wide range of applications in heterogeneous catalysis and...journal article 2010
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Harinck, J. (author)The next generation of thermodynamic power cycles offers great potential as the conceptual basis for sustainable energy converters. Examples are the supercritical and superheated Organic Rankine cycle, the transcritical condensation cycle, the supercritical Brayton cycle, the Organic Stirling cycle and the transcritical vapor compression cycle....doctoral thesis 2010
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Meijer, J.M. (author), Aarts, L. (author), Van der Ende, B.M. (author), Vlugt, T.J.H. (author), Meijerink, A. (author)Energy losses inherent to the conversion of sunlight to electricity in solar cells are mainly due to the so-called spectral mismatch: low energy photons are not absorbed while the energy of high energy photons is only partly used by the solar cell. The losses can be significantly reduced by adapting the solar spectrum. A promising avenue is the...journal article 2010