Searched for: subject%3A%22Process%255C+simulation%22
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Fedeli, M. (author), Negri, F. (author), Bornazzini, A. (author), Montastruc, L. (author), Manenti, F. (author), Kiss, A.A. (author)
This study investigates an innovative method to produce dimethyl ether (DME) by direct synthesis from syngas derived from biogas. The proposed process was rigorously simulated in Aspen Plus, highlighting the main sections: (i) biogas tri-reforming, (ii) dimethyl-ether synthesis, and (iii) DME purification. The tri-reforming section has a CO...
journal article 2024
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Almeida Benalcazar, E.F. (author)
The mitigation of global warming requires an urgent shift from the fossil fuel-based productive matrix currently in place. Technological platforms are being developed to reduce the amount of carbon of fossil origin, which is emitted to the atmosphere as a side-product from the production of energy. Gas mixtures containing CO, H2 and CO2 are...
doctoral thesis 2023
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Patraşcu, Iulian (author), Bîldea, Costin Sorin (author), Kiss, A.A. (author)
Among other fuel additives — such as MTBE, ETBE, or TAME — 2-methoxy-2-methyl heptane (MMH) can increase the fuel octane number and reduce the CO emission. MMH can be obtained through the exothermal etherification of 2-methyl-1-heptene and methanol. Lately, many researchers have developed more and more efficient processes considering the...
journal article 2022
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Vujanović, Annamaria (author), Puhar, Jan (author), Krajnc, Damjan (author), Awad, P.W.A.A. (author), Čuček, Lidija (author)
Conventional plastic products present a serious burden to the environment, especially during their end-of-life phase. To tackle the rapid growth in plastic production, use and pollution, it is desirable to produce plastic materials more sustainably. Amongst these plastic materials which could be produced sustainably are Melamine Etherified...
journal article 2022
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Rokhayati, Erna (author), Kiss, A.A. (author)
Ammonia plays critical role as the second most produced chemical commodity with around 80% used in producing nitrogen-based fertilizer. Considering the decline of reserves of fossil-based feedstocks it is imperative to shift towards greener alternatives. However, such green ammonia processes are far from being economically viable. This makes...
journal article 2022
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Devaraja, Devnarayan (author), Kiss, A.A. (author)
Monoethanolamine is an essential chemical used as feedstock in the production of detergents, emulsifiers, pharmaceuticals, polishes, corrosion inhibitors, and chemical intermediates. It is produced industrially by treating ethylene oxide with aqueous ammonia, but the reaction also leads to di- and tri-ethanolamine as less desired by-products....
journal article 2022
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Gorter, Chris (author)
Good supply strategy that can improve the logistical chain involves taking into account the complexity that a specific good is situated in. This research takes improving the bicycle supply chain within the Netherlands armed Forces as a use case. Aside from the goals for the use case of bicycles, the aim was also to fill the knowledge gap of...
master thesis 2021
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Dimian, Alexandre C. (author), Kiss, A.A. (author)
Acetic acid is an essential chemical used in the production of many chemical products. Using methanol as bio-building block, the acetic acid produced may be incorporated in bio-based products. This study deals with enhancing the efficiency of separations in a process using a homogeneous catalyst, which is the most applied today industrially....
journal article 2021
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Kuo, P.C. (author), Illathukandy, Biju (author), Wu, Wei (author), Chang, Jo Shu (author)
In this study, an energy, exergy, and environmental (3E) analyses of a plasma-assisted hydrogen production process from microalgae is investigated. Four different microalgal biomass fuels, namely, raw microalgae (RM) and three torrefied microalgal fuels (TM200, TM250, and TM300), are used as the feedstock for steam plasma gasification to...
journal article 2021
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Zhou, X. (author), van Gelder, P.H.A.J.M. (author), Liang, Yongtu (author), Zhang, Haoran (author)
As the main way for the long-distance transportation of refined products, multi-products pipelines are of vital importance to the regional energy security. The supply reliability evaluation of multi-product pipeline systems can improve the effective response to unexpected disruptions and guarantee the reliable oil supply. Based on reliability...
journal article 2020
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Struzziero, G. (author), Skordos, A. A. (author)
The present paper addresses the multi-objective optimization of the filling stage of the Resin Infusion manufacturing process. The optimization focuses on the selection of an optimal temperature profile which addresses the tradeoff between filling time and the risk of impeding the flow of resin due to excessive curing. The methodology developed...
journal article 2019
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Tifkitsis, K. I. (author), Mesogitis, T. S. (author), Struzziero, G. (author), Skordos, A. A. (author)
A stochastic multi-objective cure optimisation methodology is developed in this work and applied to the case of thick epoxy/carbon fibre laminates. The methodology takes into account the uncertainty in process parameters and boundary conditions and minimises the mean values and standard deviations of cure time and temperature overshoot....
journal article 2018
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Beerthuizen, Erik (author)
This thesis proposes several methods to solve the planning of parking and servicing of trains in a shunting yard. Management of temporary superfluous resources and maintenance is a recurring topic in many fields. Trains visit a service yard regularly to be cleaned, maintained, and to store them outside rush hours. These activities are currently...
master thesis 2018
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Soleymani Shishvan, M. (author), Benndorf, J. (author)
Continuous mining systems containing multiple excavators producing multiple products of raw materials are highly complex, exhibiting strong interdependency between constituents. Furthermore, random variables govern the system, which causes uncertainty in the supply of raw materials: uncertainty in knowledge about the reserve, the quantity...
journal article 2016
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Markensteijn, T.L. (author)
Organizations are in ever changing environments which results in the need for constant adaptation of business processes and structures. Continuous business process improvements can result in cost savings as well as higher efficiency and effectiveness. In some cases business process improvements can be realized through experience and competent...
master thesis 2013
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Markensteijn, T.L. (author)
Organizations are in ever changing environments which results in the need for constant adaptation of business processes and structures. Discrete Event Simulation (DES) is a commonly used application of Business Process Simulation to support decision makers in complex processes. However, in case deep uncertainty is present in a target business...
journal article 2013
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Lakerveld, R. (author), Benyahia, B. (author), Heider, P.L. (author), Zhang, H. (author), Braatz, R.D. (author), Barton, P.I. (author)
The judicious use of buffering capacity is important in the development of future continuous pharmaceutical manufacturing processes. The potential benefits are investigated of using optimal-averaging level control for tanks that have buffering capacity for a section of a continuous pharmaceutical pilot plant involving two crystallizers, a...
journal article 2013
document
(author)
A so-called “Design Process Investigation toolbox” (DPI toolbox), has been developed. It is a set of computational tools that simulate spatial-structural design processes. Its objectives are to study spatial-structural design processes and to support the involved actors. Two case-studies are presented which demonstrate how to: (1) study the...
conference paper 2013
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Worm, G.I.M. (author), Kelderman, J.P. (author), Lapikas, T. (author), Van der Helm, A.W.C. (author), Van Schagen, K.M. (author), Rietveld, L.C. (author)
This research deals with the contribution of process simulation models to the factory acceptance test (FAT) of process automation (PA) software of drinking water treatment plants. Two test teams tested the same piece of modified PA-software. One team used an advanced virtual commissioning (AVC) system existing of PA-emulation and integrated...
conference paper 2012
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Rust, I.J. (author)
Business process simulation (BPS) provides the possibility to simulate and evaluate the dynamic behavior of business processes, without directly influencing or changing the processes. The main problem is that developing a simulation model is considered to be difficult, time-consuming and expensive. For management consulting companies, BPS could...
master thesis 2011
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