Searched for: subject%3A%22high%255C+pressure%22
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Yu, Yuhang (author), Obata, Keisuke (author), Movick, William J. (author), Yoshida, Shintaro (author), Palomo Jiménez, J. (author), Lundin, Sean Thomas B. (author), Urakawa, A. (author), Sarathy, S. Mani (author), Takanabe, Kazuhiro (author)
To introduce promotional H<sub>2</sub>O effects for both CH<sub>4</sub> rate and C<sub>2</sub> selectivity, the OH radical formation, catalyzed through H<sub>2</sub>O activation with O<sub>2</sub> surface species, was critical for modeling selective Mn-K<sub>2</sub>WO<sub>4</sub>/SiO<sub>2</sub> catalysts. Based on our reported experimental...
journal article 2024
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Weller, Lee (author), Shah, Priyav (author), Giles, Anthony (author), De Domenico, F. (author), Morris, Steve (author), Williams, Benjamin A.O. (author), Hochgreb, Simone (author)
Laser-Induced Grating Spectroscopy (LIGS) was applied in a high-pressure combustion facility. Instantaneous (sub-μs), spatially resolved (within 5 mm) measurements of temperature and molar fractions of water were obtained using thermal and electrostrictive LIGS signals. Temperatures up to 1800 K and water molar fractions between 0.01 and 0.12...
conference paper 2023
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Kim, S. (author), Curko, Josip (author), Matosic, Marin (author), Herrera, Aridai (author), Lopez-Vazquez, Carlos M. (author), Brdjanovic, Damir (author), Garcia, H. (author)
To investigate the influence of high-pressure and shear effects introduced by a concentrated oxygen supply system on the membrane filtration performance, a laboratory-scale membrane bioreactor (MBR) fed artificial municipal wastewater was operated continuously for 80 days in four phases equipped with different aerations systems: (P1) bubble...
journal article 2023
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Ceron Chafla, P.S. (author), de Vrieze, Jo (author), Rabaey, Korneel (author), van Lier, J.B. (author), Lindeboom, R.E.F. (author)
Background: Elevated CO<sub>2</sub> partial pressure (pCO<sub>2</sub>) has been proposed as a potential steering parameter for selective carboxylate production in mixed culture fermentation. It is anticipated that intermediate product spectrum and production rates, as well as changes in the microbial community, are (in)directly influenced by...
journal article 2023
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Morrison, A.R.T. (author), Girichandran, N. (author), Wols, Quincy (author), Kortlever, R. (author)
Abstract: The electrochemical CO<sub>2</sub> reduction reaction (CO<sub>2</sub>RR) has been proposed as a sustainable way of closing the carbon cycle while synthesizing useful commodity chemicals. One of the possible routes to scale up the process is the elevated pressure CO<sub>2</sub>RR, as this increases the concentration of the poorly...
journal article 2023
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Zhou, Jianmin (author), Ding, Lei (author), Shi, Mu (author), Lindeboom, R.E.F. (author), Cui, Changzheng (author)
In the envisaged hydrogen economy, H<sub>2</sub> could be an interesting alternative electron donor for the denitrification of drinking water or wastewater. The main obstacle to engineering the hydrogenotrophic denitrification process is the low solubility of H<sub>2</sub> in water under atmospheric pressure, which limits denitrification rate...
journal article 2022
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De Crescenzo, Carmen (author), Marzocchella, Antonia (author), Karatza, Despina (author), Molino, Antonio (author), Ceron Chafla, P.S. (author), Lindeboom, R.E.F. (author), van Lier, J.B. (author), Chianese, Simeone (author), Musmarra, Dino (author)
Background: Pressurised anaerobic digestion allows the production of biogas with a high content of methane and, at the same time, avoid the energy costs for the biogas upgrading and injection into the distribution grid. The technology carries potential, but the research faces practical constraints by a.o. the capital investment needed in high...
journal article 2022
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YANG, SHUHAN (author)
Moisture absorbed by the hygroscopic polymers like molding compound and die-attach vaporizes during reflow lead to a high vapor pressure inside the electrical components lead to failure in the electrical device, named as popcorn failure. Popcorn failure in plastic encapsulated microcircuits has been a critical issue for electronic device...
master thesis 2021
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Buisman, Sanne (author)
Within the electricity driven conversion methods, electrocatalysis has been assessed to be the closest to commercialisation. This can only be realised, if the system efficiency is increased in terms of the reaction rate, onset potential and/or selectivity. Current research has shown that, apart from the more widely investigated routes to improve...
master thesis 2021
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Mulder, Bart (author)
Zero Emission Fuels B.V. (ZEF) is developing a microplant, which ultimately provides a pathway to produce a hydrocarbon in a sustainable manner. This microplant consists of several subsystems. One of which is an alkaline water electrolyser, in which water is split into oxygen and hydrogen under specific operating conditions.<br/>As a mixture of...
master thesis 2021
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Kleist, Tom (author)
Zero Emission Fuels B.V (ZEF) is currently in the process of designing and prototyping a sustainable methanol micro-plant, which captures water vapor and carbon dioxide from the atmosphere and uses those components to eventually produce methanol. In order to produce methanol, hydrogen is required which is produced from the captured water by...
master thesis 2021
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Daniil, Ilias (author)
Zero Emission Fuels B.V. (ZEF) is a start-up company developing a fully autonomous methanol synthesis micro-plant that will be energy driven by solar panels. The process implements an alkaline water electrolyzer, which supplies the methanol synthesis reactor with hydrogen. The electrolysis system includes a small-scale stack of cells and is...
master thesis 2021
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Ceron Chafla, P.S. (author), Chang, Yu Ting (author), Rabaey, Korneel (author), van Lier, J.B. (author), Lindeboom, R.E.F. (author)
Volatile fatty acid accumulation is a sign of digester perturbation. Previous work showed the thermodynamic limitations of hydrogen and CO<sub>2</sub> in syntrophic propionate oxidation under elevated partial pressure of CO<sub>2</sub> (pCO<sub>2</sub>). Here we study the effect of directional selection under increasing substrate load as a...
journal article 2021
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Serial, M. R. (author), Velichko, E. (author), Nikolaeva, T. (author), den Adel, R. (author), Terenzi, C. (author), Bouwman, W.G. (author), van Duynhoven, J. P.M. (author)
Functionalized biomass waste sources of cellulose have drawn attention due to their high availability and sustainability properties. In this work we characterize the structural and flow properties of high-pressure homogenized citrus fiber cellulose dispersions, employing SAXS, rheology and rheo-MRI techniques. The high-pressure treatment...
journal article 2021
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Rong, Jian (author), Zhu, Jia-Ning (author), Xiao, Wenlong (author), Zhao, Xinqing (author), Ma, Chaoli (author)
Thermal conductivity is a key parameter for high performance material needed for electronic devices. While most commercially used Mg foundry alloys exhibit low thermal conductivities. In this work, we developed an Mg–3RE–0.5Zn alloy that is suitable for high pressure die cast (HPDC) ultrathin wall cellphone components. The thermal...
journal article 2021
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Augusto Viviani Perpignan, A.A.V. (author), Tomasello, S.G. (author), Gangoli Rao, A. (author)
Future energy and transport scenarios will still rely on gas turbines for energy conversion and propulsion. Gas turbines will play a major role in energy transition and therefore gas turbine performance should be improved, and their pollutant emissions decreased. Consequently, designers must have accurate performance and emission prediction...
journal article 2021
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Schwarze, Xander (author)
Power-to-gas (PtG) technology represents a promising route in providing long-term energy security and involves pairing volatile sources of renewable energy (solar and wind energy) with alkaline water electrolysis (AWE) to create a wide range of products based on intermediate hydrogen gas for end-users across various industries such as in fuels,...
master thesis 2020
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Ravisankar, Sneha (author)
The aviation market has seen a drastic rise in past decades, and is projected to follow a similar trend in the coming years. Stricter regulations and ambitious targets have been framed to effectively curtail the rise in emissions due to this surge in aviation. A multi-fuel blended wing body aircraft is being developed in TUDelft, with the goal...
master thesis 2020
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Mishra, K. K. (author), Ravindran, T. R. (author), Island, J.O. (author), Flores, Eduardo (author), Ares, Jose Ramon (author), Sanchez, Carlos (author), Ferrer, Isabel J. (author), van der Zant, H.S.J. (author), Castellanos-Gomez, Andres (author)
Two-dimensional layered trichalcogenide materials have recently attracted the attention of the scientific community because of their robust mechanical and thermal properties and applications in opto- and nanoelectronics devices. We report the pressure dependence of out-of-plane Ag Raman modes in high quality few-layer titanium trisulfide ...
journal article 2020
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Chang, Kelly (author)
Biogas is the well-known product of Anaerobic Digestion (AD), but nowadays, the intermediate products (volatile fatty acids - VFAs) of anaerobic metabolism have gained increasing attention inside the “carboxylate platform”. However, steering and optimizing the process for selective metabolite production is still an unraveled task inside this...
master thesis 2019
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