Searched for: subject:"Energy"
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Goldberg, T. (author), Hennekam, R. (author), Wasch, L.J. (author), Reichart, G.J. (author), Rach, O. (author), Stammeier, J.A. (author), Griffioen, J. (author)
Multi-element analysis of discrete samples via X-Ray fluorescence or inductively coupled plasma spectrometry is commonly used to characterise the composition of solid geo-materials for environmental geochemical characterisation. Conventional geochemical analysis of individual samples is time consuming and costly, which often results in low...
article 2021
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Guffanti, S. (author), Visconti, C.G. (author), an Kampen, J. (author), Boon, J. (author), Groppi, G. (author)
Sorption Enhanced DiMethyl Ether Synthesis (SEDMES) is a promising option to overcome thermodynamic limitations of conventional DME production processes. In this work a 2D+1D heterogeneous dynamic model of the reaction/adsorption step in a tube of an externally cooled multitubular fixed bed SEDMES reactor is developed in order to investigate the...
article 2021
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Abokersh, M.H. (author), Spiekman, M.E. (author), Vijlbrief, O. (author), van Goch, T.A.J. (author), Vallies, M. (author), Boer, D. (author)
The nearly zero-energy buildings (nZEB) presents a promising contribution to fulfill the EU sustainable future targets. However, the construction industry that leads the development of nZEB is facing challenges to guarantee its performance. In this context, this paper proposes a methodology framework based on Multizone Resistance–Capacitance...
article 2021
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Xiao, C. (author), Leeuwenburgh, O. (author), Lin, H.X. (author), Heemink, A. (author)
A reduced order modeling algorithm for the estimation of space varying parameter patterns in numerical models is proposed. In this approach domain decomposition is applied to construct separate approximations to the numerical model in every subdomain. We introduce a new local parameterization that decouples the computational cost of the...
article 2021
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Fokker, P.A. (author), Borello, E.S. (author), Viberti, D. (author), Verga, F. (author), van Wees, J.D. (author)
Seasonal storage of heat in shallow aquifers for increasing the efficiency of geothermal energy systems requires a proper monitoring strategy. We expanded our earlier work on harmonic pulse testing (HPT) to incorporate the effect of a temperature front moving into the reservoir due to injection of hot (or cold) water. Our analytical solutions...
article 2021
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Tosti, L. (author), van Zomeren, A. (author), Pels, J.R. (author), Comans, R.N.J. (author)
This study evaluates the potential of biomass ash as raw clinker material and the infuence of biomass feedstock and thermal conversion technology on biomass ash properties. Methods: A set of criteria for biomass feedstock and ash properties (i.e. CaO/SiO2 ratio and burnability) are established. A large dataset was collected and the best...
article 2021
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Duval, A. (author), Layrac, G. (author), van Zomeren, A. (author), Smit, A.T. (author), Pollet, E. (author), Averous, L. (author)
Two organosolv lignins extracted during pilot runs of the Fabiola process were analyzed, fractionated and chemically modified with ethylene carbonate (EC) to produce building blocks suitable for polymer synthesis. Isolation of low dispersity fractions relied on the partial solubility of the lignins in organic solvents. Lignins solubility was...
article 2021
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Cioc, R.C. (author), Lutz, M. (author), Pidko, E.A. (author), Crockatt, M. (author), van der Waal, J.C. (author), Bruijninckx, P.C.A. (author)
The Diels–Alder (DA) reaction of furans is a versatile tool in synthetic organic chemistry and in the production of sustainable building blocks and smart materials. Numerous experimental and theoretical investigations suggest that the diene scope is effectively limited to electron-rich furans, which excludes the most abundant and readily...
article 2021
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Tosti, L. (author), van Zomeren, A. (author), Pels, J.R. (author), Comans, R.N.J. (author)
Purpose: This study evaluates the potential of biomass ash as raw clinker material and the influence of biomass feedstock and thermal conversion technology on biomass ash properties. Methods: A set of criteria for biomass feedstock and ash properties (i.e. CaO/SiO2 ratio and burnability) are established. A large dataset was collected and the...
article 2021
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Dalla Longa, F. (author), van der Zwaan, B.C.C. (author)
A large part of the population in many African countries lacks access to electricity, in contrast to the ambition of reaching universal energy access as expressed in the Sustainable Development Goals. Off-grid electricity technologies have been proposed as an important means to solve this challenge. It is uncertain, however, at what rate these...
article 2021
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Houben, A.J.P. (author), Goldberg, T. (author), Slomp, C.P. (author)
The Toarcian Oceanic Anoxic Event (T-OAE, ~183 Ma) represents a well-known episode of organic-rich deposition, which is accompanied by a substantial negative carbon-isotope excursion (CIE). Underpinning the relationships between the carbon-cycle perturbation, ocean anoxia, primary productivity feedbacks and the enrichment of sedimentary organic...
article 2021
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Liakakou, E.T. (author), Infantes, A. (author), Neumann, A. (author), Vreugdenhil, B.J. (author)
The integration of gasification with syngas fermentation is still in an early stage of development, where many questions exist concerning the syngas quality required. The challenge is to define the gasification conditions that will provide a H2:CO:CO2 ratio suitable for syngas fermentation, as well as to identify and remove the compounds that...
article 2021
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Sögütoglu, L.-C. (author), Birkelbach, F. (author), Werner, A. (author), Fischer, H. (author), Huinink, H. (author), Adan, O.C.G. (author)
K2CO3 is a promising salt for thermochemical heat storage. For a high performance, the thermochemical reaction must take place as close as possible to the equilibrium, while ensuring sufficient reaction rates. In this work, we studied the near-equilibrium hydration kinetics of K2CO3 and other salts (CuCl2, MgCl2 and LiCl). We proposed a generic...
article 2021
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Singh, A. (author), Fokker, P.A. (author)
This work is an extension of the time-resolved poro-elasto-plastic MohrCoulomb model by Fokker et al to include a more realistic constitutive model. Experiments on Slochteren sandstone revealed that the inelastic deformation contributes significantly in compressive deformation almost in all stages of loading and instigated the development of a...
article 2021
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Dorenkamper, M.S. (author), Wahed, A. (author), Kumar, A. (author), de Jong, M. (author), Kroon, J. (author), Reindl, T. (author)
An enormous area could potentially be unlocked, when more photovoltaic (PV) systems would be deployed on water bodies. Especially in densely populated areas this opens a pathway for PV to contribute to the energy transition in a large scale. Another potential benefit of floating PV (FPV) systems is that they can outperform conventional PV...
article 2021
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Cordeiro, C.M. (author), van Hal, J.W. (author)
Using the example of how elite Nordic chefs use a relatively novel food such as seaweed in Nordic cuisine, we describe and develop a model of creative innovation in gastronomy services from a systems perspective. Seaweed has long had a connotation of poverty and austerity in the Nordic regions and had thus been a forgotten or marginalized food...
conference paper 2021
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Cordeiro, C.M. (author), van Hal, J.W. (author)
public lecture 2021
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Sunnardianto, G.K. (author), Bokas, G. (author), Hussein, A. (author), Walters, C.L. (author), Moultos, O.A. (author), Dey, P. (author)
A combined density functional theory and molecular dynamics approach is employed to study modifications of graphene at atomistic level for better H2 storage. The study reveals H2 desorption from hydrogenated defective graphene structure, V222, to be exothermic. H2 adsorption and desorption processes are found to be more reversible for V222 as...
article 2021
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Woolderink, H.A.G. (author), Cohen, K.M. (author), Kasse, C. (author), Kleinhans, M.G. (author), van Balen, R.T. (author)
The tectonic and fluvial setting of the Rhine-Meuse river system in the Lower Rhine Embayment rift system is exceptionally well known. The 19th century, pre-regulation river courses of three rivers are used to study a postulated sinuosity response to faulting. The fault-perpendicular Meuse River shows patterns of sinuosity changes at different...
article 2021
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Peng, F. (author), van Balen, R. (author), Beets, C. (author), Kasse, C. (author), Prins, M. (author), van der Putten, N. (author), Troelstra, S. (author), Woolderink, H. (author), van der Woude, J. (author)
Lateglacial climatic oscillations exerted profound impacts on the Meuse fluvial system. In the Lower Meuse (southern Netherlands), geomorphological studies in the last decades mainly centred on Lateglacial vegetation evolution, channel pattern changes and river terrace formation. Little information has been reported about the paleohydrology and...
article 2021
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