Searched for: subject:"Energy"
(1 - 20 of 2,748)

Pages

document
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
document
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
document
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
document
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
document
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
document
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
document
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
document
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
document
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
document
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
document
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
document
Sinke, W.C. (author), Folkerts, W. (author), Weeber, A.W. (author)
Zonne-energie (hier bedoeld: zonnestroom) is een onmisbare bouwsteen voor een duurzaam en klimaatneutraal energiesysteem; wereldwijd, in Europa en in Nederland. De kosten zijn spectaculair gedaald door een zeer succesvolle combinatie van onderzoek & innovatie en opschaling door marktontwikkeling. Dat is goed nieuws voor de noodzakelijke...
other 2021
document
Romero, N. (author), van der Linden, K. (author), Morales España, G.A. (author), de Weerdt, M.M. (author)
The power system is undergoing a significant change as it adapts to the intermittency and uncertainty from renewable generation. Flexibility from loads such as electric vehicles (EVs) can serve as reserves to sustain the supply-demand balance in the grid. Some reserve markets have rules for participation that are computationally challenging for...
article 2021
document
Carpentier, S.F.A. (author), Peuchen, J. (author), Paap, B. (author), Boullenger, B. (author), Meijninger, B. (author), Vandeweijer, V.P. (author), van Kesteren, W. (author), van Erp, F. (author)
For the development of an offshore wind farm, understanding the geological and geotechnical conditions in the upper 100 m below seafloor is crucial when reducing ground risk and designing (cost-effective) wind turbine foundations. We developed and tested a neural network approach to derive predictive (i.e. synthetic) values for CPT parameters–...
conference paper 2021
document
Jacobs, P. (author), Vijlbrief, O. (author), Lelieveld, C.M.J.L. (author)
Het doel van het project was om drie prototype badkamer renovatiepakketten te ontwikkelen en deze in zes huurwoningen te plaatsen voor het wat betreft warmtapwater aardgasloos of aardgasloos-ready maken van deze huurwoningen. In het hieraan voorafgaande TKI project MEED is een geïsoleerde gesloten douchecabine ontwikkeld met daarin geïntegreerd...
report 2021
document
Martínez Gordón, R. (author), Morales España, G.A. (author), Sijm, J.P.M. (author), Faaij, A.P.C. (author)
The importance of spatial resolution for energy modelling has increased in the last years. Incorporating more spatial resolution in energy models presents wide benefits, but it is not straightforward, as it might compromise their computational performance. This paper aims to provide a comprehensive review of spatial resolution in energy models,...
article 2021
document
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
document
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
document
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
document
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
Searched for: subject:"Energy"
(1 - 20 of 2,748)

Pages