02.International symposcium on technology and sustainable industry developement ISTSID'19
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Item A simple equation for estimating hourly water consumption in CSP plants(University of Eloued جامعة الوادي, 2019-02) T.E. Boukelia; A. Ghellab; A. Laouafi; A. BourouiAbstract— Unlike conventional thermal power plants which are generally erected in the coastal regions near water bodies, seas and oceans, where water resource availability is not a critical factor, concentrating solar power (CSP) plants are usually installed in high sunny zones which generally characterized by semi-arid and arid climates, where water resources are hard to find and/or to employ. On the other side, the hourly simulations of water consumption in CSP plants are very complex and require many calculations, data analysis and time consuming. Therefore, the aim of this paper is to develop a simple equation to estimate the hourly water consumption of a solar tower plant based on its generated power, and the existing power plant Gemasolar has been chosen to establish the methodology. The obtained results of the statistical analysis show that the cubic model based on the generated power, can be used as a simple and general model to predict hourly water consumption in a large scale solar tower power plant.Item Fractional Second Order Sliding Mode Controller for The Control of Wind Generator Based on a DFIG(University of Eloued, 2019-02-04) F.Z TRIA; K Srairi; MT BenchouiaIn order to reduce the chattering phenomena in the conventional sliding mode controller, which appears mostly in the rotor currents of doubly fed indication generator (DFIG), a new Fractional Second Order Sliding Mode Controller is proposed. In this controller, the sliding surfaces are chosen so that they will be compatible with the errors in the rotor currents. The simulation results, show the robustness of the proposed control model, the minimization of the chattering and they improve the total harmonics distortion of the rotor currentsItem international symposcium on technology and sustainable industry development ISTSID'19(University of Eloued جامعة الوادي, 2019-02-24) faculty of technologyItem Assessment and enhancement of the performance level of an algerian company(2019-02-24) Hichem Aouag; Mohyiddine Soltani; Mohammed Djamel MoussThe work presented in this paper investigates an application of Six Sigma approach for the purpose of assessment of the competitiveness capability of an Algerian company through a period of three years. To do this we use a weighted DPMO and Six Sigma level approaches. Firstly the weighted DPMO was used to calculate the proportion of quality defects. Secondly, Sigma level was introduced to evaluate the competitiveness of the company. The proposed methodology is applied in a real case study, the obtained results are discussed.Item Détermination de la qualité des eaux de l’oued Mencha (W. Jijel) par le biais des indices de pollution IPO et IQM(Universty Of El-oued جامعة الوادي, 2019-02-24) Fouad Krika; Abdarrezek KrikaL’utilisation des eaux de l’oued Mencha pour l’irrigation pose un problème majeur de santé publique. Les échantillons prélevés ont été systématiquement analysés en vue de mesurer un certain nombre de paramètres physico-chimiques et microbiologiques indicateurs de pollution:, DBO 5 , nitrites, ammonium et phosphates. Les résultats obtenus montrent que le cours d’eau est exposé à une forte pollution principalement d’origine organique (IPO=2.33, 2.75 et 2.75 pour les trois stations St1, St2 et St3 respectivement). Des corrélations entre les paramètres de pollution ont été effectuées afin de donner des éléments de réponse aux causes principales de la pollution. Ces analyses ont fait également l’objet d’une recherche bactériologique. Les résultats obtenus montrent la présence d’un taux élevé en CT (coliformes totaux), CF (coliformes fécaux) et en SF (streptocoques fécaux). Ces résultats révèlent que le cours d’eau est exposé à une contamination microbiologique très élevée principalement d’origine fécale (IQM=2.33, 2 et 2 pour les trois stations St1, St2 et St3 respectivement).Item Influence of electrolyte temperature on corrosion Behavior of carbon steel pipe API 5L X52 and X70 .(University of Eloued جامعة الوادي, 2019-02-24) Majda MOKHTARI; Aicha ZIOUCHE; Selma ATTABI; Hicham ELMSELLEMIn this study, electrochemical experiments were conducted to select the optimal electrolyte temperature to have excellent corrosion resistance in 0,1M hydrochloric acid using API X52 and X70 carbon steels. The temperature elevation effect was examined in the temperature range from 293- 323 K. The experiments showed that the corrosion current density was significantly lower when temperature increases and the aggressive solution effect is more important on X52 steel than X70 steel.Item Optimisation des paramètres de la fermentation des dattes pour les transformés en bioéthanol(University of Eloued جامعة الوادي, 2019-02-24) Zeghoud Soumeia; Med. Tayeb Oucif Khaled— La production de dattes occupe une grande partie de la production agricole Algérienne, une quantité considérable de richesses reste non commercialisation. Donc, nous avons vu qu'il doit être exploité en se tournant vers des nouveaux matériaux faciles à utiliser et l'importance industrielle. Comme exemple d'utilisation de nous avons exploitation des dattes (GHARS) pour la production d'éthanol par fermentation alcoolique. A cet effet, nous avons essayé de rechercher les meilleures conditions pour obtenir les meilleurs rendements. Au cours de la période de travail suivie l'effet de: température et l'acidité du milieu réactionnel, masse de levure et la durée de la fermentation. Après cette étude, nous avons conclu: que la température entre 30-32 ° C, le pH entre 2,4 - 4,5, la quantité de levure 12 g pour 1 kg de dattes et la durée de l'interaction entre 48 à 72 heures. A donné le meilleur rendement et qui sont arrivés dans 540 ml d'éthanol pour le poids mentionné précédemment. L’alcool obtenue est d’un degré de 70° qui en peut l’amélioré par recyclage et rectification.Item Molecular docking and uv-visibal spectroscopy characterisation of the complex formed between ferrocene derrivative and DNA.(University of Eloued جامعة الوادي, 2019-02-24) Adaika Aicha; Tedjani aicha; Lanez touhamiIn this study the ferrocene derrivative was characterized for interaction with DNA using theoretical and experimental methods. UV-visible spectroscopy was used for the experimental account of Fc-DNA complex. The experimental result showed that the Fc interacts by electrostatic mode. The binding constant ( ) and Gibbs free energy (Δ ) for the Fc-DNA complex have been estimated as 5,25 x 104 mol-1 and -26,9 KJ.mol-1 respectively. The theoretical DNA binding of Fc was investigated by performing docking studies using AutoDock molecular docking software. The docking studies yield good approximation with experimental data and explain the sites of binding.Item CHT Prediction of Thermal State of Underground Conductor in Power Distribution Networks(Universty Of El-oued جامعة الوادي, 2019-02-24) Sid Ali Koubili; M’hamed Beriache; Nor Azwadi Che Sidik; Meziane Nasreddine; Belarbi Abdelillah Abed; Mokhtar Saïdia LeilaThis research aims at a deeper understanding of the steady-state thermal behavior of underground cables using Computational Heat Transfer (CHT) techniques modeling. The results concern the thermal study of 33 kV single and multiple copper conductors with a nominal conductor cross-section of 615 mm2 buried in the ground for a single cable, two cables and for three cables in horizontal position. The most unfavorable summer conditions, the burial depth as well as the physical properties of the soil as a function of the moisture content, are studied. The operating current of the conductors is taken 940 A. The results show that the temperature of the cables decreases with the burial depth, a compromise temperature/cost of installation corresponds to 80 cm of burial depth. Further, the maximum temperature of a single cable buried in the ground is considerably lower than that allowed (363 K) for a good use, namely 313 K in summer conditions, so there is a considerable margin to increase its ampacity, also the temperature decrease with increase of water content of the soil surrounding the cable of approximately 2 to 5 degrees. The results obtained are in good agreement with those of the literature.Item A Hydraulic Comparison between Center Pivot Irrigation Traditional and Modern Type ANABIB(University of Eloued, 2019-02-24) Hadji Mohammed Salah; Guerrah Ayoub; Mansouri KhaledThe objective of this article is to realize a hydraulic comparison between the traditional and modern irrigation pivot system (Type ANABIB). This comparison is based on evolution of hydraulic parameters like pressure, flow and length between the sprinklers (nozzles) to obtain a homogeneous distribution of water over the entire irrigated area. Center Pivot irrigation has an important agricultural component in Algeria, especially in the South such (El Oued, Ouargla, Biskra, Meniaa, Adrar, etc.). However, this irrigation technique is often used by farmers, who don’t have the scientific expertise to develop and improve the performance of their equipment, taking into account the weather conditions of desert areas, as well as the sizing of the pumping system. Farmers in Souf deal with the traditional pivot system and don’t accept the modern type ANABIB with suitable normalization factor because its high cost. Therefore, the necessity to improve hydraulic performance of the traditional system until it has a high normalization factor and good uniformity of irrigation. However in well-designed devices we can get a good hydraulic efficiency the order of 85%. The results of the work observed for the hydraulic parameters of traditional system commonly used by farmers give us 59,58 and 70,76% of Cuh that values gives us the possibility to improve its uniformity of irrigation by the predominant effect of the sprinkler distance to get an acceptable values of normalization factor (over than 85%), on the other hand ANABIB system gives 95,98 and 97,28% of Cuh that considers as a perfect values . It is intended that this article be served as a starting point from which improved uniformity may be developed in the futureItem Structural, Stabilities and Energetic properties of BGen clusters: A DFT Study(Universty Of El-oued جامعة الوادي, 2019-02-24) Meriem Benaida; Kamal Eddine Aiadi; Sofiane Mahtout; ZitouniWe present a systematic computational study based on the density functional theory (DFT) aiming tohigh light the possible effects of one B doping atom on the structural, energetic, and electronic properties of different isomers of Gen+1 clusters in the atomic size range n = 1-5 atoms. By considering a large number of structures for each cluster size, the lowest-energy isomers are determined. The putative geometries show that the frameworks of the lowest-energy isomers are three-dimensional structures. The growth pattern behaviors and relative stabilities are analyzed from the binding energies, fragmentation energy and second-order difference of energies.Item A new classification of clock Synchronization in Wireless Sensor Networks(University of Eloued, 2019-02-24) Habib Aissaoua; Makhlouf Aliouat; Abdelkader Laouid; Farid LalemSince the birth of computer networks and distributed systems, the clock synchronization issue has been considered as a major challenge. In fact, the importance to have clocks synchronized resides in the fact that a wide range of communication protocols and applications necessitate a common notion of time for the overall network nodes to operate perfectly. MAC protocols and node sleep scheduling are protocol examples based on synchronized clocks. The design of synchronization protocols is challenged by the uncertainty arising from message latency and clock drifting, and also by resource constrained nodes. In this work, we first exhibit the basic concepts of the clock synchronization issue, and we provide a thorough classification based on the features that have to be considered when designing synchronization protocols in such networksItem Tuning Decentralized PID Controller for a Quadrotor Using Flower Pollination Algorithm.(Universty of El-oued جامعة الوادي, 2019-02-24) Hossam-Eddine GLIDA; Latifa ABDOU; Abdelghani CHELIHIThis paper presents a decentralized PID controller applied to Unmanned Aerial Vehicle (UAV). Initially, a decentralized Proportional Integral Derivative (PID) controller was proposed to control the overall system of the quadrotor. Then, the parameters of the proposed controller tuning via Flower Pollination Algorithm against a fitness function which guarantees the convergence of the proposed algorithm to the optimal parameters. The simulation results demonstrate the effectiveness of the proposed optimization algorithm to tune the PID controller.Item Modeling of synchronous reluctance generator for an isolated wind turbine system(University of Eloued, 2019-02-24) Abdelkader MAHMOUDI; Hamza MESAI AHMEDThis paper proposes an application of synchronous reluctance generator (SyRG) for stand –alone wind turbine system to supply electric power to remote communities. They are robust, simple, and less expensive compared to other types of brushless generators thus an analytical model in the dq reference frame is developed based on very good parameter identificaion including iron losses and saturation. The direct/quadrature inductances were introduced in the model considering no-load and resistive load conditions. A fast method to estimate the minimum capacitance requirement is proposed in order to determine the self-excitation and the required minimum residual rotor magnetism for self-excitation in the reluctance generator connected with capacitances are discussed. The capability of self-excitation in the reluctance generator by connecting charged capacitors is also investigatedItem Evolution des caractéristiques mécaniques et la résistance à l’usure d’une fonte ausferritique par modification de la microstructure(University of Eloued, 2019-02-24) M. I. BOULIFA; A. HADJIL’objectif de la présente recherche est d'étudier la corrélation entre la microstructure et les propriétés mécaniques, la résistance à l'usure de la fonte ADI faiblement alliée. Les principaux facteurs influent les propriétés mécaniques de l'ADI sont la structure de la matrice, l'existence et la distribution de carbures et de la martensite dans la microstructure, la morphologie de graphite et les défauts de fonderie. Ces propriétés microstructurales et mécaniques après coulée sont dépendentes de la composition chimique et les paramètres exacts des étapes du processus de production (procédé de fusion et surtout la technologie de traitement thermique). L'effet des éléments d'alliage sur la formation de la microstructure et les propriétés mécaniques de l’ADI a été étudié afin d'améliorer ces propriétés pour la fabrication de pièces de tracteurs agricoles Des meilleures propriétés mécaniques telles que la microdureté, la dureté, la limite élastique, l'allongement, la résistance à la traction, la résilience et la résistance à l'usure ont été trouvés après des diverses caractérisations structurales et mécaniques sur la base des éléments d'alliage ajouté à la fonte de base tels que Mn, Ni, Mo et VItem Lead free organic-inorganic perovskites simulation for low toxic solar cell applications(University of Eloued, 2019-02-24) Hima Abdelkader; Lakhdar Nacereddine; Benhaoua Boubaker; Kemerchou Imad; Rogti FatihaCH3NH3PbI3 Perovskite materials applied in organic-inorganic solar cell applications suffer from Pb toxicity. Recent researches aim to find out other alternates free lead materials. In this paper, numerical simulations of free lead perovskite CH3NH3SnI3 have been studied and results have been presented in order to show their performances in comparison of those of CH3NH3PbI3 using SCAPS software. The obtained results show that CH3NH3SnI3 has better performances compared to CH3NH3PbI3Item Improving Adiabatic Film-cooling Effectiveness using a chevron shape ramp(Universty of El-oued جامعة الوادي, 2019-02-24) Grine Mustapha1; , Ben Ali kouchih fatima; Boualem khadidja; Fekire Halima; Azzi AbbèsIn this study two geometrical configurations are considered for purpose comparison, which are the base line case, and the case with an upstream chevron with rounded edge. The ensemble-averaged Navier Stokes equations closed by the k-ε RNG turbulence model and standard wall function are used in frame of the finite volume method, computational Fluid Dynamic (CFD) code represented by the commercial programmers ANSYS CFX 14.0. The work consists of a numerical computation study of a film cooling on a flat plate. The goal is to verify the effectiveness of the present code by applying the same boundary conditions on the same geometry. Furthermore, another dimension of the physical domain was displayed by adding the concept of upstream chevron fence. Three blowing ratios are considered (0.50, 1.00, and 1.50) and length-to-diameter ratios 1.75. Results are shown in form of centerline adiabatic film cooling effectiveness .The most important element in this study is the film cooling effectiveness. This variable will be the subject of most of the results in this workItem A Simple Efficient Finite Element for the Sandwich and Laminated Composites Plates Analysis(Universty of El-oued جامعة الوادي, 2019-02-24) Khmissi BELKAID; Khmissi BELKAID; Gaagaia Djamel Edinne.; Aouaichia Hamza; Fergani Nadir; Boutasseta NadirIn this work, the theory of Reddy’s third order shear deformation Kinematic and from the equivalent approach single layer are used in order to suggest a simple efficient finite element for the analysis of isotropic and composite laminated and sandwich plates. The proposed element is an isoparametric 2D quadrilateral C0 four-node with seven degrees of freedom (7DOF) per node, three translation, two rotations and two higher order rotational degrees. The selective numerical integration technique is presented for the formulation in order to improve the performance of model and to surmount the locking problem in thin plate case. Furthermore, the performance and reliability of the proposed model are investigated by comparing the author’s results with those obtained using the three dimensional elasticity theory, analytical solutions and other advanced finite element models.Item Evaluation de la qualité physico-chimique des eaux de quelques sources naturelles dans la région de Jijel (Nord-est Algérien)(Universty of El-oued جامعة الوادي, 2019-02-24) Abderrezak Krika; Fouad KRIKALa présente étude vise à déterminer les teneurs de quelques paramètres physico-chimiques dans les eaux de quatre sources naturelles localisées dans la région de Jijel qui sont : Texenna, le 3ème km, Kissir (Dar-Tbaàna) et El-Aouana (Afouzer). Les eaux de ces sources sont consommées à grande échelle par un grand nombre de citoyens et dont l'évaluation de leur qualité est une nécessité. Les résultats des analyses, qui sont effectuées en collaboration avec le laboratoire de l’A.D.E, sur les eaux des quatre sources sont évalués grâce au SEQ-Eau, ce qui nous a permis d’avoir une perspective à propos de leur qualité. Les résultats obtenus montrent que les eaux de la source de Texenna sont de bonne qualité, celles d’El Aouana sont moyennement bonne mais potable tout de même, alors que les eaux du 3ème km et celles de Kissir sont lions des normes de potabilité.Item Contrôle robuste d’une turbine éolienne à vitesse variable basée sur la Machine Asynchrone à Double Alimentation(University of Eloued, 2019-02-24) M. Allam; Y. Djeriri; H. Mesai Ahmed; M.A. DejhafCe travail présente une stratégie de commande robuste par logique floue à vitesse variable appliquée au système de conversion d’énergie éolienne équipée d’une machine asynchrone à double alimentation de 10 kW. Le stator de la MADA est directement relié au réseau, par contre son rotor est connecté à ce dernier via une cascade (Redresseur, Filtre, Onduleur). Le but est d’appliquer cette technique pour contrôler indépendamment des puissances active et réactive générées par la MADA découplée par la technique d’orientation du flux. Enfin, les performances du système à étudier sont testées et comparées par simulation en termes de robustesse face aux variations paramétriques de la machine à base du logiciel Matlab/SimulinkTM.