IJE_Vol 05 N 02

Permanent URI for this collectionhttps://archives.univ-eloued.dz/handle/123456789/22772

Browse

Browsing IJE_Vol 05 N 02 by Author "Khechekhouche, Abderrahmane"

Filter results by typing the first few letters
Now showing 1 - 4 of 4
  • No Thumbnail Available
    Item
    Induction machines diagnosis by the time's harmonics
    (جامعة الوادي - university of el oued, 2020-12-01) Allal, Abderrrahim; Khechekhouche, Abderrahmane; Driss, Zied
    The induction motor is currently becoming the key element of most industrial equipment. Despite these advantages, a certain number of constraints of very different natures can affect the lifetime of this machine, causing considerable economic losses. This work is the study experimental of defects for an asynchronous machine (with and without defect). After having described the main defects that can occur on these. In this study, we propose a method called induction machines diagnosis by the time's harmonics. This technique is based to study the influence of a defect of short-circuiting on the studied induction motor, we will find the rank of the harmonic of the most influenced by the number of the rank default. this study will find the diagnostic index of induction motor with stator default using the time harmonics. The results obtained show that the 3rd order time-harmonic is very sensitive compared to the other harmonics
  • No Thumbnail Available
    Item
    Numerical simulation of the flow rate effect on the evolution of a negatively buoyant water jet
    (جامعة الوادي - university of el oued, 2020-12-25) Allal, Abderrrahim; Khechekhouche, Abderrahmane; Driss, Zied
    A numerical simulation study was done on a penetrating pure water jet injected into another surrounding salt water miscible with negative buoyancy conditions. For the incompressible filtered Navier-Stokes equations and the sum of the fluid model volume, we used a transient Computational Fluid Dynamics (CFD) solver (VOF model). A finite volume discretization method using Open Source code given in Open Foam 2.3.0. was used to solve these equations. The flow has a significant impact in the laminar system on the evolution of the jet in terms of subsequent permanent phase as well as transient regime
  • No Thumbnail Available
    Item
    Numerical simulation of the flow rate effect on the evolution of a negatively buoyant water jet
    (جامعة الوادي - university of el oued, 2020-11-25) Eleuch, Oumaima; Latrache, Noureddine; Frikha, Sobhi; Khechekhouche, Abderrahmane; Driss, Zied
    A numerical simulation study was done on a penetrating pure water jet injected into another surrounding salt water miscible with negative buoyancy conditions. For the incompressible filtered Navier-Stokes equations and the sum of the fluid model volume, we used a transient Computational Fluid Dynamics (CFD) solver (VOF model). A finite volume discretization method using Open Source code given in Open Foam 2.3.0. was used to solve these equations. The flow has a significant impact in the laminar system on the evolution of the jet in terms of subsequent permanent phase as well as transient regime
  • Thumbnail Image
    Item
    Performance of a wastewater treatment plant in south-eastern Algeria
    (جامعة الوادي - university of el oued, 2020-11-07) Khechekhouche, Abderrahmane; Bouchemal, Fattoum; Kaddour, Zineb; Salim, Khechana; Miloudi, Abdelmonem
    The experimental study was carried out on an urban wastewater purification station located in the region of El Oued -Kounine- in south-eastern Algeria. During 6 months, samples were taken every month to study the Physico-chemical parameters of this station. Monthly monitoring of SS, COD, BOD5 was made from September 2017 to February 2018 and the results obtained show that the average elimination rates were 77.76, 74.10 and 80% respectively for BOD5, DCO and SS. The average of the ratio COD/BOD5 during the 6 months of follow-up is equal to 2.9.