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Experimental Investigation of a Centrifugal Pump Hydraulic Performance in Hydraulic Transmission of Solids

Published in Mechanics and Mechanical Engineering

In petroleum and mine industries, the centrifugal pumps were used for transferring solid particles with water. This method is preferable to other methods because of its user friendly and economic issues. In this article by selecting a proper pump and designing test circuit, we conducted hydraulic tests for water and water mixture with solid particl...

Investigation of slip effects on electroosmotic mixing in heterogeneous microchannels based on entropy index

Published in SN Applied Sciences

In this article electrokinetic mixing through heterogeneous microchannels has been studied and the effects of slip coefficient, zeta-potential, Debye–Hückel parameter and Reynolds number on mixing efficiency have been investigated. The microchannels studied here, have non-homogenous zeta-potential distribution at the wall, while other surface prope...

Development of an Optimised Chinese Dome Digester Enables Smaller Reactor Volumes / Pilot Scale Performance

Chinese dome digesters are usually operated at long hydraulic retention times (HRT) and low influent total solids (TS) concentration because of limited mixing. In this study, a newly optimised Chinese dome digester with a self-agitating mechanism was investigated at a pilot scale (digester volume = 500 L) and compared with a conventional Chinese do...

Cd/Cr dopings in CuAg nano-clusters: a transition towards strong alloying

Published in Journal of Nanoparticle Research

Using first principles electronic structure calculations, we have explored the effects of separate substitutional dopings with Cd/Cr dopants on the structural, mixing and electronic properties of binary CunAg13−n nano-clusters for every possible composition of its two constituents. Both the two classes of the doped CuAg clusters as well as the undo...

Secondary flow mixing of neutralizing reagent induced by U-bent de-ballast pipes

Published in Journal of Mechanical Science and Technology

This study proposes a secondary flow mixer for neutralizing reagent in a de-ballast pipe. Because the proposed mixer has a U-bent pipe configuration, it can be fabricated using commercially available pipe parts at low cost. Numerical simulations were conducted with four computational domains: one straight pipe (SP) and three U-bent pipes. The norma...

Factors affecting groundwater quality in the area between Safaga and El Quseir, Eastern Desert, Egypt

Published in Arabian Journal of Geosciences

The current study objective is to identify the hydro-geochemical processes and their relation with the groundwater quality in Safaga-El Quseir District, Egypt. The study approach includes conventional graphical plots and geochemical modeling of the hydrochemical data to define the evaluation of aquifer systems based on the ionic constituents, hydro...

Numerical simulation of free flowing particles mixing in V-blender

Published in Granular Matter

The aim of this study is to present a novel approach for analyzing the pharmaceutical solid mixing performance of monodisperse particles by a numerical simulation using the mathematical model of rigid solid objects “for a large span of time reached 20 min”. In order to ensure the viability of a numerical simulation, an experimental study of a binar...