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var str = 'Preparation of activated carbon based on synthetic and agricultural wastes: application to the adsorption of methyl orange';
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]]>
Activated carbon]]>
Tires]]>
Date pits]]>
Optimization]]>
Experimental design]]>
Dye adsorption]]>
This study focus on the optimization of operating conditions for activated carbons preparation starting from synthetic waste (tires) and agricultural waste (date pits) by chemical activation. The experimental design was used in order to determinate the optimal conditions for the preparation of a precursor with high properties. The results show that a temperature of 550°C and particle diameter of 800 um are interesting. The specific surface area reached 770 and 1030m2/g respectively for the active carbons obtained from tires and date pits. In order to evaluate the efficiency of these adsorbents, we selected an anionic dye (orange methyl) as a pollutant. Kinetic results show that the adsorption equilibrium is reached at around 60 min with an adsorbed amount of 21.42 mg/ g and 38.83 mg/g for the TAC (Tire Activated Carbon) and the DPAC (Date Pits Activated Carbon) respectively. The different isotherms were well fitting by Freundlich model.]]>
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var str = 'Chennouf-Abdellatif, Zefzaf';
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]]>
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var str = 'Cheknane, Benamar';
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]]>
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var str = 'Zermane, Faïza';
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]]>
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var str = 'Gaigneaux, Eric M.';
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]]>
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var str = 'Hadj Sadok, Ahmed';
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]]>
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var str = 'Mohammedi, Ourida';
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]]>
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var str = 'Bouchenafa-Saib, Naïma';
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]]>
Journal of Renewable Energies; Vol. 18 No. 4 (2015): Volume 18 (Regular); 575 – 586]]>
Journal of Renewable Energies; Vol. 18 No 4 (2015): Volume 18 (Regular); 575 – 586]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v18i4]]>
Renewable Energy Development Center]]>
2023-10-18]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/531/1328]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/531]]>
10.54966/jreen.v18i4.531]]>
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var str = 'Simulation de l’écoulement autour d’un profil à l’aide d’une méthode DES';
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]]>
CFD]]>
Wing NACA]]>
Stall]]>
RANS]]>
SST]]>
DES]]>
Ce travail concerne l’étude du comportement d’un écoulement turbulent autour d’un profil d’aile NACA23012. Nous avons effectué des simulations numériques de l’écoulement. Elle est réalisée par le logiciel CFD qui est basé sur la méthode de volumes finis pour la résolution des équations de Navier-Stokes. Nous avons considéré l’écoulement bidimensionnel, instationnaire et incompressible dans le domaine de vitesses choisies. L’effet de la turbulence a été pris en compte en utilisant le modèle statistique du premier ordre à deux équations SST et le modèle statistique du second ordre DES (Detached Eddy Simulation).]]>
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var str = 'Bourekba, Fatih';
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]]>
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var str = 'Guerri, Ouahiba';
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]]>
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var str = 'Nait Bouda, Nora';
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]]>
Journal of Renewable Energies; Vol. 18 No. 4 (2015): Volume 18 (Regular); 565 – 574]]>
Journal of Renewable Energies; Vol. 18 No 4 (2015): Volume 18 (Regular); 565 – 574]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v18i4]]>
Renewable Energy Development Center]]>
2023-10-18]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/530/1327]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/530]]>
10.54966/jreen.v18i4.530]]>
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var str = 'Theoretical and numerical approaches of a plane, laminar and non-confined, impinging jet';
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]]>
Isothermal]]>
Numerical]]>
Plane impacting jet]]>
Laminar]]>
We propose in this paper, a numerical study of a planar impacting jet flow. The flow is assumed isothermal, laminar and unconfined. The developed computer code is based on the finite volume method, which was used to discretize the N-S equations. The code allowed us to simulate the physical phenomenon’s taking place in the jet flow. The work focuses, on the description of the evolution of the jet and the presentation of the different characteristics of the flow, for different values of the Reynolds number and the impacting height. Calculations were made for values of the Reynolds numbers ranging from 0.01 to Re = 2000, i.e. in the limits of laminar flow regime, and for values of the ratio between the height of the outlet nozzle-impact surface of 0.1 to 20. The theoretical and numerical approaches of this work are confronted with the experimental works of Sholtz et al., [2].]]>
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var str = 'Aliouali, Abdelouahid';
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]]>
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var str = 'Talbi, Kamel';
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]]>
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var str = 'Kadja, Mahfoud';
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]]>
Journal of Renewable Energies; Vol. 18 No. 4 (2015): Volume 18 (Regular); 551 – 564]]>
Journal of Renewable Energies; Vol. 18 No 4 (2015): Volume 18 (Regular); 551 – 564]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v18i4]]>
Renewable Energy Development Center]]>
2023-10-18]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/529/1326]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/529]]>
10.54966/jreen.v18i4.529]]>
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var str = 'Optimization of osmotic dehydration of tomatoes slices in salt and sucrose solutions using response surface methodology';
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]]>
Tomatoes]]>
Osmotic Dehydration]]>
Response Surface Methodology]]>
Salt]]>
Sucrose]]>
Response Surface Methodology (RSM) was used to investigate the effect of temperature solution, immersion time, salt concentration and sucrose concentration on the water loss and solid gain during osmotic dehydration of tomatoes slices. The optimum conditions for maximum WL% and SG % are: T=55°C, t =240 min and C=74% for the sucrose and T=55°C, t= 240 min and C= 5% for the salt. The value of water content of the monomolecular layer (Xm),is 17.07 % at 25°C.]]>
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var str = 'Ferradji, Ali';
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]]>
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var str = 'Aït Chaouche, Feriel Sabrine';
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]]>
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var str = 'Belhachat, Djamila';
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]]>
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var str = 'Malek, Ali';
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]]>
Journal of Renewable Energies; Vol. 18 No. 4 (2015): Volume 18 (Regular); 539 – 549]]>
Journal of Renewable Energies; Vol. 18 No 4 (2015): Volume 18 (Regular); 539 – 549]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v18i4]]>
Renewable Energy Development Center]]>
2023-10-18]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/528/1325]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/528]]>
10.54966/jreen.v18i4.528]]>
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var str = 'Optimisation d’un système hybride de production d’énergie pour site isolé: cas de la ville de Ngaoundéré';
document.write(linkifyHtml(str, options));
]]>
Optimisation]]>
Système d’énergie hybride (SEH)]]>
Eolienne]]>
Photovoltaïque]]>
Micro-turbine à gaz]]>
Ce travail, présente l’optimisation d’un système éolien-photovoltaïque-micro-turbine à gaz avec batterie pour l’électrification des populations n’ayant pas accès au réseau électrique. Les résultats de simulation montrent que l’insertion de la micro-turbine à gaz permet de réduire les émissions de gaz polluants de manière significative par rapport au système à générateur diesel.]]>
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var str = 'Kouam, Aymar';
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]]>
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var str = 'Tchuen, Ghislain';
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]]>
Journal of Renewable Energies; Vol. 18 No. 4 (2015): Volume 18 (Regular); 529 – 538]]>
Journal of Renewable Energies; Vol. 18 No 4 (2015): Volume 18 (Regular); 529 – 538]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v18i4]]>
Renewable Energy Development Center]]>
2023-10-18]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/527/1324]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/527]]>
10.54966/jreen.v18i4.527]]>
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var str = 'La filière des huiles essentielles Etat de l’art, impacts et enjeux socioéconomiques';
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]]>
Huiles essentielles]]>
Cet article porte sur la filière des huiles essentielles et les impacts et enjeux socioéconomiques liés à son développement. L’accent a été mis sur l’étendue et la diversité des secteurs d’application des huiles essentielles et leur impact sur le marché mondial. Nous donnons un aperçu sur la production et l’évolution du marché des huiles essentielles en Algérie et le potentiel de développement de ce secteur.]]>
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};
var str = 'Bessah, Rahma';
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]]>
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var str = 'Benyoussef, El-Hadi';
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]]>
Journal of Renewable Energies; Vol. 18 No. 3 (2015): Volume 18 (Regular); 513 – 528]]>
Journal of Renewable Energies; Vol. 18 No 3 (2015): Volume 18 (Regular); 513 – 528]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v18i3]]>
Renewable Energy Development Center]]>
2023-10-18]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/526/1323]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/526]]>
10.54966/jreen.v18i3.526]]>
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var str = 'Hydrogen storage: Investigation of the elastic properties of Mg7NbH16 hydride';
document.write(linkifyHtml(str, options));
]]>
Magnesium alloys]]>
Mechanical properties]]>
Density functional theory]]>
Hydrogen storage]]>
Structural, mechanical and electronic structure properties of Mg7NbH16 were investigated using the norm-conserving pseudo-potentials and plane waves (PP-PW) within the general gradient approximation (GGA) in the frame of density functional theory (DFT). The computed equilibrium lattice constants are in excellent agreement with the available experimental and theoretical data. The elastic constants Cij of Mg7NbH16 were calculated for the first time. The Mg7NbH16 compound is found to be mechanically stable. The bulk modulus of single crystals has been derived using elastic constants. The results are discussed and compared with the calculated bulk modulus reported in the literature. The polycrystalline elastic moduli (namely: the shear modulus, Young's modulus, Poisson's ratio, Lamé's coefficients, sound velocities and the Debye temperature) were derived from the obtained single-crystal elastic constants. According to the obtained results, Mg7NbH16 can be classified as ductile material. The shear anisotropic factors and the elastic anisotropy are also discussed. A Debye temperature of 619 K was also determined using theoretical elastic constants.]]>
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var str = 'Bouhadda, Youcef';
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]]>
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var str = 'Bououdina, Mohamed';
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]]>
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var str = 'Fenineche, Noureddine';
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]]>
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var str = 'Boudouma, Youcef';
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]]>
Journal of Renewable Energies; Vol. 18 No. 3 (2015): Volume 18 (Regular); 503 – 512]]>
Journal of Renewable Energies; Vol. 18 No 3 (2015): Volume 18 (Regular); 503 – 512]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v18i3]]>
Renewable Energy Development Center]]>
2023-10-18]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/525/1322]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/525]]>
10.54966/jreen.v18i3.525]]>
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var str = 'Etude numérique et validation des caractéristiques aérodynamiques d'écoulement autour des obstacles ovales en fonction des paramètres géométriques';
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]]>
Ellipse- Ecoulement]]>
Nombre de Mach]]>
Coefficient de la pression]]>
Vitesse]]>
Dans ce travail, on a étudié numériquement l’écoulement incompressible, non visqueux, bidimensionnel et stationnaire autour des obstacles ovales (ellipse horizontale, ellipse verticale et cercle) en fonction des paramètres géométriques avec un nombre de Mach égal à zéro. Nous avons deux paramètres, le premier est le grand rayon de l’ellipse (a) et le second est le petit rayon de l’ellipse (b). L’écoulement est modélisé par la méthode des panneaux dans les coordonnées cartésiennes. Cette méthode est basée sur le remplacement de la surface du profil par une répartition de sources et de puits. Les lois de variation des vitesses représentées, illustrent bien le comportement réel du fluide non visqueux via les corps multiformes mentionnés par les références bibliographiques spécialisées.]]>
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var str = 'Ghodbane, Mokhtar';
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]]>
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var str = 'Boumeddane, Boussad';
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]]>
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var str = 'Largot, Soulef';
document.write(linkifyHtml(str, options));
]]>
var options = {
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var str = 'Berkane, Houda';
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Journal of Renewable Energies; Vol. 18 No. 3 (2015): Volume 18 (Regular); 493 – 502]]>
Journal of Renewable Energies; Vol. 18 No 3 (2015): Volume 18 (Regular); 493 – 502]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v18i3]]>
Renewable Energy Development Center]]>
2023-10-18]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/524/1321]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/524]]>
10.54966/jreen.v18i3.524]]>
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var str = 'Etude numérique de la fusion des matériaux à changement de phase pour le stockage thermique dans une cavité rectangulaire inclinée';
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Fusion]]>
MCP]]>
Cavité inclinée]]>
Stockage thermique]]>
Dans ce travail, une étude numérique bidimensionnelle du processus de la fusion d’un matériau à changement de phase (MCP) placé à l’intérieur d’une enceinte rectangulaire inclinée, dont toutes les faces sont isolées thermiquement à l’exception de la face verticale avant, qui est chauffée de manière isotherme. On a considéré que la conduction était le mode de transfert de chaleur qui régit le processus au début de la fusion, suivie par une courte période de transition avant que la convection naturelle devient le mode de transfert de chaleur dominant dans la phase liquide. Les équations qui gouvernent ce genre de phénomène sont résolues et une solution numérique est développée. Les effets de l’angle d’inclinaison et l’orientation de la cavité sur le phénomène de la fusion sont examinés.]]>
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var str = 'Serradj, Mohamed';
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var str = 'Benmansour, Abdeldjellil';
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var str = 'Benzerdjeb, Abdewaheb';
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Journal of Renewable Energies; Vol. 18 No. 3 (2015): Volume 18 (Regular); 479 – 485]]>
Journal of Renewable Energies; Vol. 18 No 3 (2015): Volume 18 (Regular); 479 – 485]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v18i3]]>
Renewable Energy Development Center]]>
2023-10-18]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/522/1320]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/522]]>
10.54966/jreen.v18i3.522]]>
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var str = 'Système de conversion simplifié pour éolienne équipée de génératrice synchrone à aimants permanents';
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]]>
Machine synchrone à aimants permanents (GSAP)]]>
Eolienne]]>
MPPT]]>
Convertisseur DC-DC]]>
VSC]]>
Dans le cadre de la conversion à vitesse variable d’énergie éolienne (VS-WECS: Variable Speed, Wind Energy Conversion System), cet article propose une électronique de puissance simplifiée pour injecter l’énergie produite dans le réseau, spécialement dédié aux éoliennes de petite puissance (<100 kW). La chaîne de conversion comprend en série une génératrice synchrone à aimants permanents (GSAP) fonctionnant à vitesse variable, un redresseur à diodes, un convertisseur DC-DC et un convertisseur en source de tension (VSC: Voltage Source Converter) en fonctionnement onduleur. Par rapport à une réalisation standard à deux VSC, la solution proposée permet de réduire le matériel nécessaire et de simplifier la commande. Le contrôle du système de conversion repose sur deux boucles de réglage. D’une part, la boucle de réglage de la vitesse de la GSAP permettant de suivre le point de fonctionnement à puissance maximale et d’autre part le réglage de la tension continue de l’onduleur. Le réglage de la vitesse requiert de contrôler en temps réel la puissance active injectée dans le réseau, ce qui est fait à l’aide d’un régulateur d’état avec commande vectorielle. Les résultats de simulation obtenus permettent de valider la solution matérielle proposée et montrent, lors de variation de la vitesse du vent, une adaptation rapide et précise de la vitesse de la GSAP.]]>
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var str = 'Lalou, Moncef Justin';
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Journal of Renewable Energies; Vol. 18 No. 3 (2015): Volume 18 (Regular); 469 – 477]]>
Journal of Renewable Energies; Vol. 18 No 3 (2015): Volume 18 (Regular); 469 – 477]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v18i3]]>
Renewable Energy Development Center]]>
2023-10-18]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/521/1319]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/521]]>
10.54966/jreen.v18i3.521]]>