SAID Zergane

Choutri Isaac

Rétro-conception d'une pièce complexe

Latrag Oussama , Bachiri Rania, Boukharouba Amira

Réalisation d'un panneau solaire thermique

Ben Khlil Aboubakr Idriss , Bessai Adelbasset

Etude dynamique et dimensionnelle du moteur Wankel

Khanous Hanine , Maiz Idir

EVALUATION DES PERFORMANCES D’UNE EOLIENNE A AXE HORIZONTAL

Boudiaf Mohammed Elamine

TECHNIQUE DE MAINTENANCE D’UNE INSTALLATION EOLIENNE

Ben Khaled Berlkacem , Ben Saoucha Mohammed Aymen Moataz

EFFET DE L’ESPACEMENT ENTRE LES PALES D’UNE EOLIENNE SAVONIUS SUR LA PRODUCTION DE L’ENERGIE

Ben Achour Ayache , Saidi fehmi

PROTECTIONS TECHNOLOGIQUES ELECTRIQUES ET DE LA CENTRALE A CYCLE COMBINEE DE AIN ARNAT

Ben Toumi Kamel , Gherab Yassine

Etude d’une installation domestique de chauffage à eau chaude

Benahmed Ahmed Abderazak , Lamine Khalil

Une étude de choix de densité de probabilité dans le calcul de la fréquence de la vitesse du vent

Attaloui Soumia , Merzougui Amel

Analyse et modélisation à base de neurones artificiels dédiées à la prédiction de la vitesse du vent

This paper presents a numerical study of natural convection in an annular cavity filled with a hybrid nanofluid under the influence of a magnetic field. This study is significant for applications requiring enhanced thermal management, such as in heat exchangers, electronics cooling, and energy systems. The inner cylinder, equipped with fins and subjected to uniform volumetric heat generation, contrasts with the adiabatic outer cylinder. This study aims to investigate how different nanoparticle combinations (Fe3O4 with Cu, Ag, and Al2O3) and varying Hartmann and Rayleigh numbers impact heat transfer efficiency. The finite volume method is employed to solve the governing equations, with simulations conducted using Fluent 6.3.26. Parameters such as volume fraction (ϕ2 = 0.001, 0.004, 0.006), Hartmann number (0 ≤ Ha ≤ 100), Rayleigh number (3 × 103 ≤ Ra ≤ 2.4 × 104), and fin number (N = 0, 2, 4, 6, 8) are analyzed. Streamlines, isotherms, and induced magnetic field contours are utilized to assess flow structure and heat transfer. The results reveal that increasing the Rayleigh number and magnetic field enhances heat transfer, while the presence of fins, especially at N = 2, may inhibit convection currents and reduce heat transfer efficiency. These findings provide valuable insights into optimizing nanofluid-based cooling systems and highlight the trade-offs in incorporating fins in thermal management designs

Citation

SAID Zergane , , (2024-05-19), Numerical Analysis of Natural Convection in an Annular Cavity Filled with Hybrid Nanofluids under Magnetic Field, Energies, Vol:18, Issue:17, pages:22, MDPI

In recent years, the implementation of rotary friction welding technology in the industrial sector has made significant progress, especially in the automotive industry, where multiple sheets forming the bodywork of a single vehicle are now assembled using this process. In this study, we utilized the phenomenon of rotary friction to enhance the quality of welded parts at different rotational speeds. Measurements of stress values, microhardness, and temperature were conducted in the welding zones for the following combinations: A60 steel/A60 steel, A9 aluminum/A9 aluminum, and their combination A60/A9. The results from each pair of welded plates were compared to achieve a comprehensive characterization.

Citation

SAID Zergane , SAID Zergane , Said Zergane, , (2024-04-01), INFLUENCE OF THE ROTATION SPEED OF ROTARY FRICTION WELDING ON THE MICRO-HARDNESS OF FIXED AND MOBILE WELDED PARTS., Academic Journal of Manufacturing Engineering, Vol:22, Issue:2, pages:6, - Academic Journal of Manufacturing

In recent years, the implementation of rotary friction welding technology in the industrial sector has made significant progress, especially in the automotive industry, where multiple sheets forming the bodywork of a single vehicle are now assembled using this process. In this study, we utilized the phenomenon of rotary friction to enhance the quality of welded parts at different rotational speeds. Measurements of stress values, microhardness, and temperature were conducted in the welding zones for the following combinations: A60 steel/A60 steel, A9 aluminum/A9 aluminum, and their combination A60/A9. The results from each pair of welded plates were compared to achieve a comprehensive characterization.

Citation

SAID Zergane , SAID Zergane , Said Zergane, , (2024-04-01), INFLUENCE OF THE ROTATION SPEED OF ROTARY FRICTION WELDING ON THE MICRO-HARDNESS OF FIXED AND MOBILE WELDED PARTS., Academic Journal of Manufacturing Engineering, Vol:22, Issue:2, pages:6, - Academic Journal of Manufacturing

In this article, we present an investigative study on the often-overlooked partial wake phenomenon in previous studies concerning wind farm configurations. A partial wake occurs when a portion of the actuator disk of a downstream wind turbine is affected by the wake of another upstream turbine. This phenomenon occurs in addition to the full wake, where the entire upstream turbine is affected by the wake of the frontal turbine, also leading to a decrease in wind speed and consequently a reduction in power production. The proposed study is based on measuring the power generated by the area swept by the wake of an array of turbines in a wind farm. To accomplish this, we integrate the linear wake model of Jensen, the specifications of the ENERCON E2 wind turbine, and the wind farm data into Matlab-developed software (version 18) to perform the calculations. In a concrete application, this proposed method is validated by reproducing the previous works that neglected the partial wake in wind farm configurations. The simulation results obtained are analyzed, compared, and discussed under similar operational conditions.

Citation

noureddine MENASRI , SAID Zergane , Chouki FARSI , SALAH Amroune , Souad BENKHERBACHE , , (2024-03-21), A New Study on the Effect of the PartialWake Generated in a Wind Farm, energies, Vol:17, Issue:, pages:12, MDPI

To produce electricity from the wind, horizontal axis turbines exceeding 80 m in height are often used. Entirely immersed in the atmospheric boundary layer, these wind turbines undergo the same changes as the speed of the wind in a wind farm. In this context comes our study for the effect of the atmospheric boundary layer on the energy production for a single wind turbine, then generalize it to all the wind turbines of the farm. Using the logarithmic profile of wind speed in the atmospheric boundary layer, data from two types of wind turbines; NREL-V and ENERCON-E2 are introduced in a computer program for the calculation of the developed power. The results obtained are compared and discussed.

Citation

SAID Zergane , Amar BERKACHE , ,(2023-12-02), Effecgt of the atmospheric boundary layer on a wind turbine,The 1st National Conference on Green Energy,Boumerdes, Algeria

The accurate prediction of total energy output in a wind farm hinges on the specific arrangement of wind turbines. Relying solely on a wind speed model that assumes uniform and unidirectional conditions appears insufficient for achieving a detailed understanding of optimal turbine placement to produce maximum energy. In this context, we present our efforts to develop a calculation method for precisely situating wind turbines within a wind farm. This method leverages pseudorandom number generation as a mathematical optimization approach, implemented through a Matlab program. More specifically, our proposal introduces a more comprehensive and realistic wake model. This model factors in various variables such as the atmospheric boundary layer, ground roughness, and turbulence. By doing so, it aims to provide a significantly more accurate prediction of the effects of wind turbine interference at the site and, consequently, minimize wake-related impacts. Our simulation results have been meticulously analyzed using data sourced from NREL turbin

Citation

SAID Zergane , ,(2023-11-26), The location of wind turbines in a winf farm in the atmospheric boundary layer,er international conference on physico-chimestry, material sciences ans applied mathematics (ICPMSAM'23),Skikda, Algeria

In the manufacturing industry, Mastercam X5 is a widely used CNC simulation and programming suite that offers high efficiency. It can be easily integrated with the Mastercam model, providing full associativity and seamless single-window integration. The iMachining technology, which uses patented algorithms for specific operations, is a breakthrough in CNC milling tool path technology. It optimizes the tool path, reduces machining time, and minimizes tool wear. The suite enables a wide range of machining operations on various stock objects, making it flexible and versatile. The simulation process allows real-time observation of operations and ensures error-free G-code for physical operation. This paper details the procedures of machining a spur gear from stock material using Mastercam 2D iMachining technology. The simulation process generates automatic Gcodes for practical use in CNC machines. Mastercam simplifies the concept, operation, and importance of using CAM software in modern-day manufacturing industries. It also enables optimization of operational steps and parameter details to save time, cost, and tool lives, improving overall efficiency.

Citation

Mohamed SLAMANI , SAID Zergane , SALAH Amroune , Moussa ZAOUI , Chouki FARSI , , (2023-11-24), G-CODE GENERATION FOR MACHININING SPUR GEAR IN CNC MACHINES USING THE IMACHINING STRATEGY, ACADEMIC JOURNAL OF MANUFACTURING ENGINEERING, Vol:21, Issue:4, pages:49-57, ACADEMIC JOURNAL OF MANUFACTURING ENGINEERING

L’inteligence artificielle est un ensemble de techniques développant des programmes informatiques complexes qui permet de réaliser des machines capables de simuler l'intelligence humaine. Pour effectuer des tâches L’intelligence artificielle est liée à la vie moderne, son domaine d’application est très varié : domaines d’applications tels que; l’automobile, la santé, le transport, l’agriculture, le changement climatique, le tourisme, la banque, le commerce, l’industrie, l’éducation, l’aéronautique. L'intelligence artificielle permet aussi d'exploiter des données à un niveau qu'aucun humain ne pourrait jamais atteindre.

Citation

SAID Zergane , ,(2023-04-16), Modélisation et la Prédiction de la Vitesse du Vent par la Méthode des Réseaux de Neurones,L'intelligence artificielle en mécanique,Faculté de technologie, Université de M'sila

With the world’s growing demand for energy, renewable energy production has become important in providing alternative sources of energy and in reducing the greenhouse effect. This study investigates the aerodynamics and performance of the WG/EV100 micro–Horizontal Axis Wind Turbine (HAWT) using Computational Fluid Dynamics (CFD). The complexity of VAWT aerodynamics, which is inherently unsteady and three-dimensional, makes high-fidelity flow models extremely demanding in terms of computational cost, limiting the analysis to mainly 2D Computational Fluid-Dynamics (CFD) approaches. This article explains how to perform a full 3D unsteady CFD simulation of HAWT. All main parts of the WG/EV100 HAWT were designed in SOLIDWORKS. Only the blade design was reverse engineered due to the unavailability of the CAD model and the complexity of its geometric characteristics. The impeller blade is scanned using a Coordi-nate Measuring Machine (CMM), and the obtained 3D scan data are exported from the PC-DMIS software to GEOMAGIC design X to obtain a CAD model of the blade.

Citation

noureddine MENASRI , SAID Zergane , Noureddine aimeur , Aissa AMOUR , , (2023), 3D CFD MODEL FOR THE ANALYSIS OF THE FLOW FIELD THROUGH A HORIZONTAL AXIS WIND TURBINE (HAWT), Acta Polytechnica, Vol:63, Issue:4, pages:250-259, the Czech Technical University in Prague

Abstract: By increasing their electricity production capacity, this work focuses on a new wind farm configuration study currently in service. More specifically, a study that aims to enlarge the production area of the ventilated sites by implanting more wind turbines in optimal positions behind the existing turbines. In order to achieve this goal, we use Jensen's linear wake pattern to describe the behavior of wind speed in wake, as well as a method based on the generation of a sequence of modified pseudo-random numbers as Mathematical approach to optimize the location of the wind turines. To perform numerical simulations, a program under MATLAB has been developed using the characteristics of the Gamessa G52 turbine and the data of the site in the production of Kaberten in Algeria. The results obtained from this study are presented and discussed.

Citation

SAID Zergane , SALAH Amroune , MANSOUR Rokbi , seyf-eddine.guesmia@mail.concordia.ca, , (2022), New study on the extension of a current wind farm; case of Kaberten park in Algeria, Turkish Journal of Computer and Mathematics Education, Vol:13, Issue:2, pages:428-434, Turkish Journal of Computer and Mathematics Education

In the atmospheric boundary layer, the uniform and unidirectional wind speed does not seem to be valid; it has a logarithmic or exponential profile. Close to the ground, this speed is slowed down by the roughness of the ground and the presence of obstacles, while going uphill, the wind speed becomes more and more important and reaches a determined value. For the power produced by the wind turbine in the atmospheric boundary layer, the moment of force exerted by the wind is not the same over the entire rotor actuator disc. In this context and to remedy this problem, we present in this work a method which aims to calculate the power developed by a wind turbine where the wind speed is not constant in the atmospheric boundary layer. This method is based on the discretization of the rotor actuator disc into elementary surfaces, using the power characteristic curve which corresponds to given wind speeds of such a wind turbine. By a computer program developed, the elementary power is calculated in each element of discretized surface, then, the total power of the wind turbine in atmospheric boundary layer is only the sum of the elementary powers. To show the validity of this method, the results obtained in this study are analyzed and discussed. It should be noted that the power in each discretized surface element is different from that of the others, because the wind speed is different at each height

Citation

SAID Zergane , ABDELKADER DJERAD , seyf-eddine.guesmia@mail.concordia.ca, ,(2022), The developped power of a wind turbine in the boundary layer,International Seminar on Industrial, Engineering and Applied Mathematics,Skikda, Algeria

Inspired by the functioning of neurons in the brain, neural networks are tools widely used in artificial intelligence in solving statistical problems. To this end, in wind energy, the wind is in perpetual variation, in order to model it and predict its intensity from its average annual speed, we present in this study a method based on the use of artificial neural networks. Using the accumulation of a period of 10 years of measurements of the average annual wind speed of a site in the region of Kaberten, a computer program has been developed under MATLAB to estimate the wind in the years to come. This program makes it possible to predict the wind speed at 10 m from the ground in the year following the measurement period. The results obtained by this method on the Kaberten site are analyzed and discussed.

Citation

SAID Zergane , ADMIN Admin , Amar BERKACHE , ,(2022), Use of the neuronal network in the prediction of the wind on a given site,1st International Conference on Innovation Academic Studies,Turkey

An essential challenge for the future of composite materials is to make their manufacture and use compatible with increasingly demanding environmental expectations. In this context, the replacement of mineral or synthetic fibers by plant fibers is of great interest. However, the latter must comply with the same specifications, particularly in terms of mechanical properties. Thanks to their low density, their biodegradability as well as their abundance, the use of these fibers is interesting from Thanks to their low density, their biodegradability as well as their abundance, the use of these fibers is interesting from thanks to their low density, their biodegradability as well as their abundance, the use of these fibers is interesting from economic and environmental point of view. The dimensions of the fiber, such as diameter, are essential elements when calculating the mechanical parameters of the plant fiber. Among the techniques used to measure the diameter, one can use the optical microscope, the software ImageJ and the density. Theoretically, similar failure parameters should be obtained when different techniques are used. However, the experimental data show various parameters according to different used techniques. In this work, we carried out several experiments on natural fibers in order to determine the fracture parameters in static traction by calculating the diameter of the fiber by two ways: density method and optical method. The results reveal that the failure parameters are dependent on the diameter, hence the suitable technique plays a crucial role.

Citation

SAID Zergane , MANSOUR Rokbi , SALAH Amroune , abderaouf.khaldoune@univ-msila.dz, Ben Adda A, Nouari N, , (2022), Determination of the rupture parameters of a plant fiber by using two diameter measurement techniques, Materials Today: Proceedings, Vol:53, Issue:1, pages:237-243, Elsevier

Inconel738 is a nickel-based super alloy widely used in manufacturing gas turbines, particularly in the manufacture of blades that are in direct contact with hot gases during their operation. As a result, these blades are subjected to high temperatures, significant static and dynamic stresses, erosion and/or hot corrosion which can be very severe. The use of coatings is one of the most effective strategies to protect materials against corrosion and increase the wear resistance of materials. In this study, β-Ni-Al coatings were sprayed onto an Inconel738 substrate using a wire flame spraying process and characterization of coating has been made3

Citation

SAID Zergane , , (2022), Experimental Investigation on the Coating of Nickel-Base Super Alloy Using Wire Flame Spraying, Electrical and Mechanical Engineering, Vol:22, Issue:3, pages:28-39, Acta Universitatis Sapientiae

Inconel738 is a nickel-based super alloy widely used in manufacturing gas turbines, particularly in the manufacture of blades that are in direct contact with hot gases during their operation. As a result, these blades are subjected to high temperatures, significant static and dynamic stresses, erosion and/or hot corrosion which can be very severe. The use of coatings is one of the most effective strategies to protect materials against corrosion and increase the wear resistance of materials. In this study, β-Ni-Al coatings were sprayed onto an Inconel738 substrate using a wire flame spraying process and characterization of coating has been made.

Citation

noureddine MENASRI , SAID Zergane , noureddine.aimeur@univ-msila.dz, Saci abedelhamid, , (2022), Experimental Investigation on the Coating of Nickel-Base Super Alloy Using Wire Flame Spraying, Acta Universitatis Sapientiae Electrical and Mechanical Engineering, Vol:14, Issue:, pages:28-39, The Journal of Sapientia Hungarian University of Transylvania

البحث العلمي و مجالاته

Citation

SAID Zergane , ,(2022), البحث العلمي و مجالاته,مقومات البحث العلمي الناجح,Université de M'sila

The dimensions on the fiber, such as diamter, are essential elements hwen calculing nthe mechanical parameters of lant fier. Among the thechniques used to measure the diameter, one can use the optical microscope, the software imaje and density

Citation

SAID Zergane , ,(2021), Determination of te rupture parameters of plant fiber by two diameter measurment technics,Polymer and Mediterranean Fiber International Conference'2021,Bédjaia, Algeria

The main objective of this work is the analysis and the modeling of the wind by all the characteristics in order to predict the variations of the intensity of its annual average speed in the atmospheric boundary layer during a year using 'a new method based on artificial neurons. By introducing data and cumulative wind speed measurements over several decades from such a windy site, this method, developed on MATLAB, makes it possible to estimate the annual wind speed at 5 m from the ground in the years to come. The simulation results obtained in this work are analyzed and validated by comparing them with the results measured on this site in the years preceding the measurement period.

Citation

SAID Zergane , ABDELKADER DJERAD , MANSOUR Rokbi , ,(2021), Prediction of the variation of wind speed by a method based on artificial neurons network,The Sixth International conference on machanical and energy-ICME'2021',Sousse, Tunisia

In this paper, with the goal of maximizing the power production of a wind farm and reducing the wake effect resulting from front-end turbines, we present a new optimization method based on the generation of pseudo-random numbers as a mathematical approach; we have used this method along with the Jensen linear wake model in order to study optimal wind turbine positioning in a farm of given dimensions. For this purpose, a computer program has been developed to carry out numerical simulations based on the maximum total power produced. Using a typical wind turbine for uniform and unidirectional wind speed, the simulation results that we have obtained are presented and discussed. Compared to previous works based on genetic algorithms and viral basis methods, this optimization has yielded recorded enhancements of up to 6.5% on resulting wind farm power. Furthermore, we have found that an optimum number of wind turbines can be properly determined for any given wind farm.

Citation

SAID Zergane , , (2019), Optimization of wind turbine placement in a wind farm using a new pseudo-random number generation method, Renewable energy, Vol:19, Issue:5, pages:1-9, Springer

In a windy site, under the effect of the wake, the too dense grouping of wind turbines would lead to a speed deficit and a considerable reduction in power, which affects the overall performance of the wind farm. To describe the evolution of the wind speed in the wake, several models were used without taking into account the turbulence. For this purpose, and in this work, we present a study that aims at the effect of turbulence on the power of a wind turbine, this study is based on the introduction of data and the characteristics of the wind turbine ENERCON E2 and the Using a more comprehensive wake model that accounts for ambient and added wind turbulence is the Ishihara model. The simulation results obtained from the developed power, were presented and compared with those without turbulence.

Citation

SAID Zergane , ,(2019), Effect on turbulence on the power of a wind turbine,icame 2019, Istanbul,Université de Yildiz, Turquie

The configuration of a wind farm depends mainly on the wind potential and the disposition of the wind turbines in this park. The windiest site is the most favorable for a future installation of wind turbines for the production of electricity, also, in this same site, a too dense arrangement would lead to considerable of power losses under the effect of wake. In this context, it is presented a research work that consists of determining the installation conditions of a wind farm; evaluating the wind farm through measurements of wind speed and the location of wind turbines in the park to minimize the effect of wind turbine interference. In order to do this, an evaluation study of the wind potential for the implementation of a wind farm based on the quantification of the wind in speed and directions firstly proposed. Secondly, a method for optimizing the positioning of wind turbines in a wind power farm is used based on the introduction of the Jensen wake model and the application of the iterative pseudo-random distribution approach of the turbines in the site. Simulation results are presented and discussed using data from the Kaberten site in Algeria and the characteristics of the GAMESA G52 wind turbine.

Citation

SAID Zergane , MANSOUR Rokbi , ADMIN Admin , , (2019), Configuration of wind farm in Kaberten region: wind potential and optimal capacity, SN Applied Sciences, Vol:1, Issue:12, pages:1-7, Springer

In this paper, with the goal of maximizing the power production of a wind farm and reducing the wake effect resulting from front-end turbines, we present a new optimization method based on the generation of pseudo-random numbers as a mathematical approach; we have used this method along with the Jensen linear wake model in order to study optimal wind turbine positioning in a farm of given dimensions. For this purpose, a computer program has been developed to carry out numerical simulations based on the maximum total power produced. Using a typical wind turbine for uniform and unidirectional wind speed, the simulation results that we have obtained are presented and discussed. Compared to previous works based on genetic algorithms and viral basis methods, this optimization has yielded recorded enhancements of up to 6.5% on resulting wind farm power. Furthermore, we have found that an optimum number of wind turbines can be properly determined for any given wind farm.

Citation

SAID Zergane , arezki.smaili@g.enp.edu.dz, , (2018), Optimization of wind turbine placement in a wind farm using a new pseudo-random number generation method, Renewable Energy, Vol:125, Issue:3, pages:166-171, Elsevier

Dans un parc éolien, il est bien connu que la performance globale du parc est fortement liée aux types d’arrangement des aérogénérateurs dans le site. Un arrangement trop dense entraînerait des pertes considérables de puissance. Dans ce contexte, intervient notre travail, pour déterminer la micro-localisation optimale des éoliennes dans un parc et minimiser l’effet dû aux interférences de sillages des éoliennes. Pour ce faire, nous proposons un modèle numérique, basé sur la description linéaire du sillage, et la méthode d’optimisation de Monte Carlo, afin d’étudier la micro-localisation optimale des turbines en fonction des caractéristiques aérodynamiques et des espacements entre les turbines. La validité des résultats de simulation a été étudiée en utilisant les données expérimentales de NREL

Citation

SAID Zergane , arezki.smaili@g.enp.edu.dz, , (2011), Optimisation de la micro-localisation des aérogénérateurs dans un parc éolien, Revue des Energies Renouvelables, Vol:14, Issue:4, pages:727 – 732, CDER