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var str = 'Correcteur du couple à cinq niveaux pour la commande DTC douze secteurs basés sur la logique floue et les réseaux de neurones de la MAS de forte puissance';
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]]>
DTC]]>
Douze secteurs]]>
Machine asynchrone]]>
Logique floue]]>
Réseaux de neurones]]>
Dans cet article, j’ai mis en place une approche de la commande directe du couple (DTC) douze secteurs de la machine asynchrone (MAS) basés sur la théorie de la logique floue (FL) et les réseaux de neurones (RNA). La stratégie de contrôle directe du couple est un moyen efficace et simple pour piloter une machine asynchrone. L’association de ces deux théories à la commande DTC douze secteurs a permis de donner de grandes performances avec une réponse dynamique très rapide sans dépassement. En visualisation les résultats de simulation en utilisant le langage Matlab, ces résultats de simulation montrent que la stratégie proposée de la commande DTC douze secteurs réduit considérablement les ondulations du couple et du flux statorique par rapport à la commande DTC douze secteurs conventionnels.]]>
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var str = 'Benbouhenni, Habib';
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]]>
Journal of Renewable Energies; Vol. 22 No. 1 (2019): Volume 22 (Regular); 113 - 121]]>
Journal of Renewable Energies; Vol. 22 No 1 (2019): Volume 22 (Regular); 113 - 121]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v22i1]]>
Renewable Energy Development Center]]>
2023-10-06]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/731/1092]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/731]]>
10.54966/jreen.v22i1.731]]>
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var str = 'Etude numérique de l’effet de la perméabilité dans un milieu partiellement poreux';
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]]>
Milieu poreux]]>
Perméabilité]]>
Transfert thermique]]>
Convection naturelle]]>
Cavité cubique]]>
Ce travail est consacré à l’étude des transferts de chaleur dans une enceinte cubique remplie partiellement d’une matière poreuse et par un seul fluide. Le modèle mathématique utilisé est celui de Darcy – Brinkman – Forchheimer. Les équations modélisées de continuité, du mouvement, de l’énergie et de masse sont numériquement résolues par la méthode des volumes finis. On a étudié l’influence de la perméabilité et d’autres paramètres sur les transferts de chaleur. Les résultats obtenus montrent que le nombre de Nusselt augmente avec l’augmentation de la perméabilité pour différent nombre de Darcy, et il diminue avec l’augmentation de la couche poreuse. Les résultats numériques de notre étude sont en bon accord avec ceux de la littérature.]]>
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var str = 'Ouarhlent, Faiza';
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]]>
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var str = 'Soudani, Azeddine';
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]]>
Journal of Renewable Energies; Vol. 22 No. 1 (2019): Volume 22 (Regular); 103 - 111]]>
Journal of Renewable Energies; Vol. 22 No 1 (2019): Volume 22 (Regular); 103 - 111]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v22i1]]>
Renewable Energy Development Center]]>
2023-10-06]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/730/1091]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/730]]>
10.54966/jreen.v22i1.730]]>
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var str = 'Commande par gradins d'un convertisseur multiniveau asymétrique à structure cascade pour l'entraînement d'une machine asynchrone';
document.write(linkifyHtml(str, options));
]]>
Asymmetric multi-level inverters]]>
Vector control]]>
Three-phase machine]]>
Cet article consiste à étudier la commande des onduleurs multi-niveaux asymétrique appliquée à la conduite d’une machine asynchrone triphasée. On a étudié ce type d’onduleurs parce qu’il est susceptible de générer des tensions quasi sinusoïdale ayant un nombre de niveau impair largement qui peuvent atteindre entre 2K+1 et 3K niveaux (K: cellules à pont complet). L’utilisation de la structure multi-niveaux cascade afin d’améliorer beaucoup plus la qualité de tension de sortie sans augmenter à priori le nombre de cellules d’onduleurs à pont complet ainsi que cette structure est un intérêt certain car elle contient un nombre réduit d’interrupteurs en comparaison avec les autres. Pour l’entraînement à la vitesse variable pour cette machine, la commande vectorielle avec des correcteurs classiques est appliquée ensuite. Les résultats de simulation confirment la validité et l’efficacité de ce type d’onduleur.]]>
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var str = 'Bessaad, Taieb';
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]]>
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var str = 'Taleb, Rachid';
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]]>
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var str = 'Belboula, Abdelkader';
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]]>
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var str = 'Chabni, Fayçal';
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]]>
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var str = 'Mellah, Hacene';
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]]>
Journal of Renewable Energies; Vol. 22 No. 1 (2019): Volume 22 (Regular); 93 - 101]]>
Journal of Renewable Energies; Vol. 22 No 1 (2019): Volume 22 (Regular); 93 - 101]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v22i1]]>
Renewable Energy Development Center]]>
2023-10-06]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/729/1090]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/729]]>
10.54966/jreen.v22i1.729]]>
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var str = 'Three-diodes PV model parameters extraction using PSO algorithm';
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]]>
Photovoltaic]]>
PV Model]]>
Parameters Extraction]]>
Particle Swarm Optimization]]>
PSO]]>
In this paper, we propose a particle swarm optimization technique for the characterization of the equivalent electrical model of photovoltaic cell. The three diodes model with nine parameters is considered. The particle swarm optimization algorithm is used as a tool for the extraction of the model parameters by reaching the global minimum solution in a few iterations with a very good accuracy and short convergence time based on the minimization of the quadratic error between experimental and theoretical curves. Simulation obtained results show that the proposed approach is effective for modeling the photovoltaic cell as well as the module.]]>
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var str = 'Harrag, Abdelghani';
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]]>
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var str = 'Daili, Yacine';
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]]>
Journal of Renewable Energies; Vol. 22 No. 1 (2019): Volume 22 (Regular); 85 - 91]]>
Journal of Renewable Energies; Vol. 22 No 1 (2019): Volume 22 (Regular); 85 - 91]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v22i1]]>
Renewable Energy Development Center]]>
2023-10-06]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/728/1089]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/728]]>
10.54966/jreen.v22i1.728]]>
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var str = 'Elimination of two cationic dyes by electro coagulation in single and binary system: parametric study';
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]]>
Electro coagulation]]>
Green-methyl]]>
Basic yellow28]]>
ingle and binary system]]>
In this work, the removal of two cationic dyes {greenmethyl and basicyellow 28} by electro coagulation using aluminium as anode and stainless steel as cathode was studied. First, the effect of the most important parameters {current intensity, initial pH of and initial concentration} on decolorization in single system was investigated. The results showed that the pollutants are totally removed (with efficiently of 100 %) and the adsorption kinetics was directly related of the pollutant nature and the operating conditions such as (Initial pH, concentration and contact time). Secondly, the removal of the dyes in a binary system was studied. Results showed that adding BY28 affects positively the removal of GM by increasing the removal of the BY 28, which can be explained by synergic effect of decolorization.]]>
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var str = 'Benmani, Fella';
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]]>
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var str = 'Cheknane, Benamar';
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]]>
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var str = 'Zermane, Faiza';
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]]>
var options = {
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var str = 'Aoudj, Salaheddine';
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]]>
Journal of Renewable Energies; Vol. 22 No. 1 (2019): Volume 22 (Regular); 77 - 83]]>
Journal of Renewable Energies; Vol. 22 No 1 (2019): Volume 22 (Regular); 77 - 83]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v22i1]]>
Renewable Energy Development Center]]>
2023-10-06]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/727/1088]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/727]]>
10.54966/jreen.v22i1.727]]>
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var str = 'Estimating solar radiation in a clear sky on a horizontal surface from common meteorological a data in Oran, Algeria';
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]]>
Meteorological variables]]>
Solar radiation]]>
Platt and Paltridge mode]]>
This study aimed to calibrate existing model (Platt and Paltridge model) and develop a new models for estimating the different components of the solar radiation on a horizontal surface in a clear sky data using commonly and available measured meteorological records such as water vapor tension and temperature, etc. Four models based on meteorological variables were generated and validated using daily data in 2013-2016 at the Oran Station (Algeria). Validation criteria included coefficient of determination, root mean square error and mean bias error, the results showed that the proposed models can estimate solar radiation values. The model based on the temperature and the water vapor tension gives better results with statistical errors obtained are as follows: NDMBE = 13.36 %, NDRMSE = 47.08 % and the correlation coefficient R = 0.85 for the diffused component, the model based on relative humidity and atmospheric pressure gives better results for the direct component with statistical errors obtained are: NDMBE = -1.54 %, NDRMSE = 22.59 % and the correlation coefficient R = 0.95 and The model based on the relative humidity and the water vapor tension with results: NDMBE = 0.96 %, NDRMSE = 12.08 % and the correlation coefficient R = 0.98 for the global component.]]>
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var str = 'Lantri, Fodhil';
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]]>
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var str = 'Bachari, Nour El Islam';
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]]>
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var str = 'Belbachir, Ahmed hafid';
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]]>
Journal of Renewable Energies; Vol. 22 No. 1 (2019): Volume 22 (Regular); 65 - 76]]>
Journal of Renewable Energies; Vol. 22 No 1 (2019): Volume 22 (Regular); 65 - 76]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v22i1]]>
Renewable Energy Development Center]]>
2023-10-06]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/726/1087]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/726]]>
10.54966/jreen.v22i1.726]]>
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var str = 'Bio sorption of textile dyes from aqueous solution onto three different pine barks: kinetics and isotherm studies';
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]]>
Ecorce]]>
Pin maritime]]>
Pignon de pin]]>
Pin d'alep]]>
Adsorption]]>
Colorants]]>
The main objective of the present study is to evaluate the sorption capacities of some natural raw materials of vegetable origin for the treatment of the sewage coming from the textile industry. The selected barks are: maritime pine (MP), pine pinion (PP) and Aleppo pine (AP) bark. The effectiveness of these barks was evaluated in the removal of three dye; rhodamine B (RhB), Green Malachite (GM) and Methyl Orange (MO). Initially, the effects of some parameters such as the nature of the adsorbents, the nature of the dyes and the pH were studied. Obtained results reveals that the speed sorption is strongly influencing by the pH medium and the comparative study shows that the adsorption is favourable in the acidic medium with a sorbed amount of (Q=40mg/g) for rhodamine B. The results of the biosorption kinetics reveal that the GM molecules are better biosorbed (Q=48 mg/g) than those of RhB (Q=46 mg/g) and methyl orange (Q=18mg/g), with an equilibrium time of 6 hours. The results of the biosorption isotherms show clearly that the maritime pine bark is the most effective biosorbents with sorbed amount of (QRhB=200mg/g) and (QMO=88mg/g) followed by pignon pine (PP) with (QRhB=184mg/g) and (QMO=56mg/g) and finally Aleppo pine (AP) bark with (QRhB=131mg/g) and (Qmo=46mg/g). All obtained isotherms are modeled using the Langmuir and Freundlich models. According to the adjustment coefficient values R2, corresponding isotherms are well represented by Freundlich model.]]>
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var str = 'Zermane, Faiza';
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]]>
var options = {
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var str = 'Cheknane, Benamar';
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]]>
var options = {
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var str = 'Bouras, Omar';
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]]>
Journal of Renewable Energies; Vol. 22 No. 1 (2019): Volume 22 (Regular); 59 - 64]]>
Journal of Renewable Energies; Vol. 22 No 1 (2019): Volume 22 (Regular); 59 - 64]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v22i1]]>
Renewable Energy Development Center]]>
2023-10-06]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/725/1086]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/725]]>
10.54966/jreen.v22i1.725]]>
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var str = 'Unsteady temperature, heat transfer rate and HTF outlet temperature variation during charging of latent thermal energy storage unit';
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]]>
Thermal energy storage]]>
Phase change materials]]>
Heat transfer rate]]>
HTF outlet temperature]]>
This work reports a detailed numerical study that is aimed to determine the variation of the three principal parameters, temperature of two phase change materials (PCMs), heat transfer rate and heat transfer fluid (HTF) outlet temperature, during charging of latent thermal energy storage unit (LTES). The unit is consisting of a shell-and-tube type. The shell space is filled with two paraffin wax named PCM1 and PCM2. During charging process, hot fluid heats the PCMs, and when PCMs melts, the heat is stored. A mathematical model based on the conservation energy equations was developed and numerically investigated. Numerical results show that, the variation of the three principal parameters goes through three distinct periods. As time progress, the heat transfer rate increases, reaches its maximum value during the first period, and then decreases, until finally it equals zero. The HTF outlet temperature remains constant and is equal to its initial temperature for approximately 200 seconds. During this time period, the heat storage capacity is greater, PCM1 and PCM2 store energy in the sensible form only. The analysis and discussion of results are employed to evaluate the correspondence between the variations of the three parameters in term of charging time.]]>
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var str = 'Benmoussa, Fouzi';
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]]>
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var str = 'Benzaoui, Ahmed';
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]]>
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var str = 'Benmoussa, Hocine';
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]]>
Journal of Renewable Energies; Vol. 22 No. 1 (2019): Volume 22 (Regular); 49 - 58]]>
Journal of Renewable Energies; Vol. 22 No 1 (2019): Volume 22 (Regular); 49 - 58]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v22i1]]>
Renewable Energy Development Center]]>
2023-10-06]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/724/1085]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/724]]>
10.54966/jreen.v22i1.724]]>
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var str = 'Etude des performances d'un moteur Renault 4 utilisant des mélanges essence - bio éthanol';
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]]>
Renault 4 engine]]>
Performance]]>
Gasoline]]>
Bioethanol]]>
Les performances d’un moteur à allumage commandé avec carburation, utilisant le mélange essence-bioéthanol (E10) ont été investiguées. Le moteur utilisé dans ce présent travail n’a subi une quelconque modification. Le bioéthanol a été déshydraté pour atteindre un degré de pureté de 99.8 % avant d’être mélangé à l’essence (E0) dont le RON était de 92. Les résultats des essais expérimentaux ont révélé que l’utilisation du E10 dans le moteur apporte des améliorations des performances aussi bien à la charge partielle qu’à la pleine charge. Les meilleures améliorations de la consommation spécifique et du rendement ont été obtenues à la charge partielle. Enfin le moteur n’a présenté aucun problème à chaque régime de la charge.]]>
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var str = 'Muanda Lutete, Merveil';
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]]>
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var str = 'Mbanza Diganga, Herman';
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]]>
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var str = 'Mbuyi Katshiatshia, Haddy';
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]]>
Journal of Renewable Energies; Vol. 22 No. 1 (2019): Volume 22 (Regular); 37 - 48]]>
Journal of Renewable Energies; Vol. 22 No 1 (2019): Volume 22 (Regular); 37 - 48]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v22i1]]>
Renewable Energy Development Center]]>
2023-10-06]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/723/1084]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/723]]>
10.54966/jreen.v22i1.723]]>
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var str = 'Numerical investigation of coaxial turbulent jet';
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Coaxial jet]]>
Riemann solver]]>
Muscl]]>
The paper presents a numerical study of a compressible and turbulent coaxial jet, using a Large Eddy Simulation type approach. This study focuses on the implementation of a high-performance and modern numerical method to meet the requirements in terms of results accuracy and calculation cost. The code was parallelized using the Message Passing Interface 'MPI' library. Inviscid fluxes are evaluated using a new linearization solver for the equations characteristic of approximate Riemann problem and the solution has been advanced over time using an explicit two-step McCormack method. The purpose of this study is to understand the initial stage of the transition process from laminar to turbulent flow in coaxial jets. Therefore, it has been determined that the first step in the transition process from laminar to turbulent flow in coaxial jets is initiated by the development of Helmholtz (primary vortices) in sheer layers, while three-dimensionalization turbulence is initiated in the second step with the emergence of secondary vortices. The transverse evolution of Reynolds tensors showed that the axial Reynolds tensor contribution is associated with primary instability while the transversal Reynolds tensor contribution is associated with secondary instability. Flow self-similarity state is obtained in fully developed turbulence region. Axi-symmetric mode predominates on each shear layer in the initial flow region. The results obtained are in good agreement with experimental results similar to this study's simulated jet.]]>
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var str = 'Safer, Nabil Belkacem';
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]]>
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var str = 'Beghidja, Abdelhadi';
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]]>
Journal of Renewable Energies; Vol. 22 No. 1 (2019): Volume 22 (Regular); 19 - 35]]>
Journal of Renewable Energies; Vol. 22 No 1 (2019): Volume 22 (Regular); 19 - 35]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v22i1]]>
Renewable Energy Development Center]]>
2023-10-06]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/722/1083]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/722]]>
10.54966/jreen.v22i1.722]]>