Results 1 to 10 of about 1,143 (110)

An Enhanced Sherwood Number to Model the Hydrogen Transport in Membrane Steam Reformers [PDF]

Membranes, 2021
It is well known that membrane reactors are inherently two-dimensional systems in which species concentrations vary as a consequence of both the reaction and permeation across the membrane, which occurs in the direction perpendicular to that of the main ...
Maria Anna Murmura, Chiara Rocchetti, Maria Cristina Annesini   +2 more
doaj   +3 more sources

Sherwood (Sh) Number in Chemical Engineering Applications—A Brief Review

Energies
This paper reviews a series of cases for which the correct determination of the mass transfer coefficient is decisive for an appropriate design of the system and its operating conditions.
Fabio Montagnaro
doaj   +3 more sources

Investigation of concentration polarization in a cross-flow nanofiltration membrane: Experiment and CFD modelling [PDF]

Journal of Hydraulic Structures, 2020
Numerous researches have been investigated on the mass transfer phenomena and hydrodynamics for the fluid in the vicinity of the membrane surface by the mathematical modelling and simulation.
Hossein Asefi, Abolghasem Alighardashi, Mojtaba Fazeli, Amir Fouladitajar   +3 more
doaj   +1 more source

An analytical solution of the effectiveness factor of photocatalytic reactors based on Robin boundary conditions

Chemical Engineering Journal Advances, 2023
An analytical expression of the effectiveness factor of photocatalytic reactors that accounts for external mass transfer limitations is presented. The solution is based on Robin boundary conditions introducing the Sherwood number as the parameter that ...
Makiwe A. Nkohla, Buntu Godongwana, Veruscha G. Fester, Oluwafemi J. Caleb   +3 more
doaj   +1 more source

Numerical Study of Heat and Water Vapour Exchanges Inside a Green Roof Building in a High Irradiation Area for Passive Cooling Purpose

TH Wildau Engineering and Natural Sciences Proceedings, 2021
Vegetation cover provides shading and protects the soil beneath them from warming.  Vegetation can be used as passive cooling technique that reduces the thermal load of a building. A numerical study has been carried out on laminar double-diffusive mixed
Hodo-Abalo Samah, N’Detigma Kata, Kodjo Kpode, Magolmèèna Banna, Belkacem Zeghmati   +4 more
doaj   +1 more source

On the Sherwood number correction due to Stefan flow

Chemical Engineering Science, 2022
Abstract This study contributes with insight and new models for mass transfer to spheres for three different conditions i.e. mass transfer without Stefan flow, mass transfer with even Stefan flow and mass transfer with uneven flux driven Stefan flow.
Maulana G. Nugraha, Ronnie Andersson, Bengt Andersson   +2 more
openaire   +1 more source

Non-Coaxially Rotating Motion in Casson Martial along with Temperature and Concentration Gradients via First-Order Chemical Reaction

Energies, 2021
The effect of non-coaxial rotation on the transport of mass subjected to first-order chemical reaction is studied analytically. The effects of thermal radiation, buoyancy, constructive and destructive chemical reactions along with Casson fluid in ...
Noman Jabbar, Muhammad Bilal Hafeez, Sameh Askar, Umar Nazir   +3 more
doaj   +1 more source

Microstructured Hollow Fiber Membranes: Potential Fiber Shapes for Extracorporeal Membrane Oxygenators

Membranes, 2021
Extracorporeal membrane oxygenators are essential medical devices for the treatment of patients with respiratory failure. A promising approach to improve oxygenator performance is the use of microstructured hollow fiber membranes that increase the ...
Paul Ecker, Markus Pekovits, Tsvetan Yorov, Bahram Haddadi, Benjamin Lukitsch, Martin Elenkov, Christoph Janeczek, Christian Jordan, Margit Gfoehler, Michael Harasek   +9 more
doaj   +1 more source

Enhancing Absorption Performance of CO₂ by Amine Solution through the Spiral Wired Channel in Concentric Circular Membrane Contactors

Membranes, 2021
The CO2 absorption rate by using a Monoethanolamide (MEA) solution through the spiral wired channel in concentric circular membrane contactors under both concurrent-flow and countercurrent-flow operations was investigated experimentally and theoretically.
Chii-Dong Ho, Hsuan Chang, Guan-Hong Lin, Thiam Leng Chew   +3 more
doaj   +1 more source

Chemically reactive Maxwell nanoliquid flow by a stretching surface in the frames of Newtonian heating, nonlinear convection and radiative flux: Nanopolymer flow processing simulation

Nanotechnology Reviews, 2022
The effects of a chemical reaction and radiative heat flux in a nonlinear mixed thermo-solutal convection flow of a viscoelastic nanoliquid from a stretchable surface are investigated theoretically. Newtonian heating is also considered.
Nasir Muhammad, Waqas Muhammad, Anwar Bég O., Basha D. Baba, Zamri N., Leonard H. J., Khan Ilyas   +6 more
doaj   +1 more source