Results 1 to 10 of about 2,545,116 (199)

Influence of counterdiffusion effects on mass transfer coefficients in stirred tank reactors

Chemical Engineering Journal Advances, 2021
Accurate knowledge of volumetric oxygen mass transfer coefficients in multiphase systems is important for successfully designing and efficient operation of process plants.
S. Matthes, T. Merbach, J. Fitschen, M. Hoffmann, M. Schlüter   +4 more
doaj   +1 more source

Prediction of Heat Transfer and Fluid Flow Effects on Entropy Generation in a Monolithic Catalytic Converter Using Large-Eddy Simulation

Entropy, 2022
In the present work, heat transfer and fluid flow and their effects on entropy generation in a realistic catalytic converter of a Lada Niva 21214 vehicle are studied using large eddy simulation. At first, the pressure drop over the catalytic converter is
Yongxiang Li, Luis Felipe Rico Cortes, Hardy Hamel, Kaushal Nishad, Luigi Biondo, Florian Ries   +5 more
doaj   +1 more source

Analysis of Local Exergy Losses in Combustion Systems Using a Hybrid Filtered Eulerian Stochastic Field Coupled with Detailed Chemistry Tabulation: Cases of Flames D and E

Energies, 2021
A second law analysis in combustion systems is performed along with an exergy loss study by quantifying the entropy generation sources using, for the first time, three different approaches: a classical-thermodynamics-based approach, a novel turbulence ...
Senda Agrebi, Louis Dreßler, Hendrik Nicolai, Florian Ries, Kaushal Nishad, Amsini Sadiki   +5 more
doaj   +1 more source

Multiparameter Determination of Thin Liquid Urea-Water Films

Applied Sciences, 2021
In this work, wavelengths were determined for the robust and simultaneous measurement of film thickness, urea concentration and fluid temperature. Film parameters such as film thickness, film temperature and the composition of the film are typically ...
Sani van der Kley, Gabriele Goet, Anna Schmidt, Valentina Einspieler, Steven Wagner   +4 more
doaj   +1 more source

A Novel Approach for Visualizing Mixing Phenomena of Reactive Liquid-Liquid Flows in Milli- and Micro-Channels

Frontiers in Chemical Engineering, 2022
Modular milli- and micro-structured systems represent a promising approach to exploit the potential of micro-process technology, including precise reaction control and scale-up.
Torben Frey, Felix Kexel, Kayla Reata Dittmer, Sven Bohne, Marko Hoffmann, Hoc Khiem Trieu, Michael Schlüter   +6 more
doaj   +1 more source

Introduction of novel characteristic time quantities to describe chemical reactors

Chemical Engineering Journal Advances, 2023
The Mean Residence Time is a quantity which is used very often to characterise chemical reactors. This quantity can be calculated using the Residence Time Distribution of a specific, continuous reactor and assuming closed-closed boundary conditions. Many
Christian Weiland, Mustafa Salli, Jürgen Fitschen, Marko Hoffmann, Michael Schlüter   +4 more
doaj   +1 more source

Flow

Emergency Medicine Journal, 2023
The practice and theory of science communication can take many forms. One of them, which this volume represents, explores what forms of knowledge might be constructed when creative writing encounters science. Working outwards from a theoretical framework that sees the sciences as discourses constructed by human endeavour through forms
Mbao, Wamuwi, Iqani, Mehita
openaire   +4 more sources

AE-Flow: Autoencoder Normalizing Flow

ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2023
Recently normalizing flows have been gaining traction in text-to-speech (TTS) and voice conversion (VC) due to their state-of-the-art (SOTA) performance. Normalizing flows are unsupervised generative models. In this paper, we introduce supervision to the training process of normalizing flows, without the need for parallel data.
Mosiński, Jakub, Biliński, Piotr, Merritt, Thomas, Ezzerg, Abdelhamid, Korzekwa, Daniel   +4 more
openaire   +2 more sources

Entropy Generation Analysis in Turbulent Reacting Flows and Near Wall: A Review

Entropy, 2022
This paper provides a review of different contributions dedicated thus far to entropy generation analysis (EGA) in turbulent combustion systems.
Amsini Sadiki, Senda Agrebi, Florian Ries   +2 more
doaj   +1 more source

The Exergy Losses Analysis in Adiabatic Combustion Systems including the Exhaust Gas Exergy

Entropy, 2022
The entropy generation analysis of adiabatic combustion systems was performed to quantify the exergy losses which are mainly the exergy destroyed during combustion inside the chamber and in the exhaust gases. The purpose of the present work was therefore:
Senda Agrebi, Louis Dreßler, Kaushal Nishad   +2 more
doaj   +1 more source