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                <text>Semaï, Hakim</text>
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                <text>Bouhdjar, Amor</text>
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                <text>El Mokretar, Sofiane</text>
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                <text>Boukadoum, Amel</text>
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                <text>Le travail présenté consiste à étudier l’influence du système de rebord sur le rendement des séchoirs solaires. Deux cas de figures sont pris en considération: un modèle de séchoir solaire simple et un deuxième modèle équipé d’un système de rebord au niveau de la vitre. La simulation est réalisée à l’aide d’un code de CFD. Les deux séchoirs seront assimilés à des capteurs à air équipés d’un système de stockage réalisé par un lit de galets. L’enceinte de séchage sera considérée comme une enceinte fermée (pas de système d’évacuation) afin de prendre en compte uniquement des pertes au niveau du vitrage. Les températures obtenues dans l’enceinte du capteur, équipé d’une chicane, sont relativement supérieures à celles du capteur simple. Le régime de l’écoulement au niveau de la vitre est beaucoup plus stable dans le capteur équipé d’un système de rebord comparativement à celui du capteur simple.</text>
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                <text>Renewable Energy Development Center</text>
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                <text>Copyright (c) 2021 Journal of Renewable Energies</text>
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                <text>Journal of Renewable Energies; Vol. 15 No. 4 (2012): Volume 15 (Regular); 589 - 597</text>
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                <text>Journal of Renewable Energies; Vol. 15 No 4 (2012): Volume 15 (Regular); 589 - 597</text>
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                <text>2716-8247</text>
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                <text>Séchoir solaire</text>
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                <text>Capteur solaire</text>
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                <text>Ecoulement transitoire</text>
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                <text>Influence du système de rebord sur le rendement d'un séchoir solaire</text>
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              <elementText elementTextId="274257">
                <text>Chachoua-Harmim, El Yakout</text>
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                <text>Harmim, Arzezki</text>
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                <text>Mammeri, Abdelkrim</text>
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                <text>Yaïchi, Mohammed</text>
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                <text>La vérification, par mesures expérimentales, de la faisabilité de la poursuite solaire discontinue à deux positions autour d’un axe vertical pour des panneaux solaires installés à Adrar fait l’objet de cet article. Les mesures effectuées sur site confirment la faisabilité de cette technique surtout pour les systèmes de pompage de petite et moyenne taille. Les mesures expérimentales ont montré que le gain énergétique est de l’ordre de 14 – 40 % en fonction du mois et de l’état du ciel. Ceci constitue une contribution au bon dimensionnement du système et à la réduction de son coût d’installation.</text>
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                <text>https://revue.cder.dz/index.php/rer/article/view/347</text>
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                <text>eng</text>
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                <text>Renewable Energy Development Center</text>
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                <text>https://revue.cder.dz/index.php/rer/article/view/347/1501</text>
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            <description>Information about rights held in and over the resource</description>
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              <elementText elementTextId="274269">
                <text>Copyright (c) 2021 Journal of Renewable Energies</text>
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                <text>Journal of Renewable Energies; Vol. 15 No. 4 (2012): Volume 15 (Regular); 581 - 587</text>
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                <text>Journal of Renewable Energies; Vol. 15 No 4 (2012): Volume 15 (Regular); 581 - 587</text>
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                <text>2716-8247</text>
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            <description>The topic of the resource</description>
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              <elementText elementTextId="274276">
                <text>Générateur PV</text>
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              <elementText elementTextId="274277">
                <text>Poursuite solaire discontinue</text>
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                <text>Gain énergétique</text>
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                <text>vérification expérimentale</text>
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            <name>Title</name>
            <description>A name given to the resource</description>
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              <elementText elementTextId="274280">
                <text>Vérification expérimentale de la faisabilité de la poursuite solaire discontinue à deux positions pour panneaux PV à Adrar</text>
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            <name>Type</name>
            <description>The nature or genre of the resource</description>
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                <text>info:eu-repo/semantics/article</text>
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            <name>Creator</name>
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              <elementText elementTextId="274229">
                <text>Tourta, Sabah</text>
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                <text>Mokhnache, Ammar</text>
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                <text>Seghiri, Sara</text>
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                <text>Le rayonnement solaire est atténué par les différents constituants atmosphériques, tels que les molécules, les aérosols, les gaz, les gouttelettes nuageuses ou les cristaux de glace. Les aérosols absorbent et diffusent le rayonnement, l’atténuation par diffusion est caractérisée par l’épaisseur optique des aérosols qui représentent le degré de turbidité de l’atmosphère. Cette turbidité peut être quantifié à l’aide du coefficient de trouble d’Ångstrom [1] ou du TL de Linke. La connaissance de est importante dans l’estimation du rayonnement solaire du sol à partir des images satellitaires. Le but de ce travail est l’étude de l’effet des aérosols sur l’estimation du coefficient de réflectance bidirectionnel sur le site de Tamanrasset, en utilisant les deux modèles: modèle spectral de Smarts2 et modèle analytique à bande large, pour les trois heures de prise d’images à pleine résolution, 9h00, 12h00, 15h00 temps universel, et pour des jours de ciel clair de l’année 1999. Les résultats d’observations et les calculs se concordent. Nous avons trouvé que pour les fortes valeurs de l’épaisseur optique des aérosols, on à un fort coefficient de réflectance bidirectionnelle</text>
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                <text>https://revue.cder.dz/index.php/rer/article/view/346</text>
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                <text>eng</text>
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                <text>Renewable Energy Development Center</text>
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                <text>https://revue.cder.dz/index.php/rer/article/view/346/1569</text>
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              <elementText elementTextId="274240">
                <text>Copyright (c) 2021 Journal of Renewable Energies</text>
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                <text>Journal of Renewable Energies; Vol. 15 No. 4 (2012): Volume 15 (Regular); 571 - 579</text>
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                <text>Journal of Renewable Energies; Vol. 15 No 4 (2012): Volume 15 (Regular); 571 - 579</text>
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                <text>2716-8247</text>
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                <text>Aérosols atmosphériques</text>
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                <text>Atmosphère</text>
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                <text>Rayonnement global</text>
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                <text>Coefficient de réflectance</text>
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                <text>Atténuation atmosphérique</text>
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                <text>Gisement solaire</text>
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                <text>Télédétection</text>
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                <text>Etude de l’effet des aérosols sur l’estimation du coefficient de réflectance bidirectionnelle à l’aide de mesures satellitaires</text>
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                <text>Harizi, Athmane</text>
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                <text>Mahfoudi, El Ahcene</text>
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                <text>La simulation numérique des écoulements à travers les aubes de turbines à gaz dépend essentiellement de la prédiction correcte de la transition laminaire/turbulent de la couche limite qui se développe autour de ces aubes. Particulièrement, le coefficient d’échange de chaleur est grandement influencé par cette transition qui conditionne d’une manière directe le niveau des échanges de chaleur dans les canaux des turbines à gaz. Dans la présente étude, on s’intéresse à la modélisation de la transition de la couche limite qui se développe autour de l’aube LS-89, testée expérimentalement au VKI, en utilisant un modèle de turbulence à quatre équations, basé sur des corrélations empiriques et développé par Menter (2004) et Langtry (2006). Deux variantes de corrélations sont intégrées au code Fluent par l’utilisation de fonctions définies par l’utilisateur (UDF). Les résultats numériques obtenus sont comparés et validés par des résultats expérimentaux obtenus par Arts et al. (1990) [1], d’où on constate une bonne concordance des résultats particulièrement pour la détection du point de transition.</text>
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                <text>Copyright (c) 2021 Journal of Renewable Energies</text>
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                <text>Journal of Renewable Energies; Vol. 15 No. 4 (2012): Volume 15 (Regular); 561 - 570</text>
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                <text>Journal of Renewable Energies; Vol. 15 No 4 (2012): Volume 15 (Regular); 561 - 570</text>
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                <text>2716-8247</text>
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                <text>Simulation</text>
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                <text>Turbulence</text>
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                <text>Transition</text>
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                <text>Transfert de chaleur</text>
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              <elementText elementTextId="274226">
                <text>Simulation numérique de la transition laminaire/turbulent de la couche limite autour d’une aube de turbine à gaz</text>
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            <name>Creator</name>
            <description>An entity primarily responsible for making the resource</description>
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              <elementText elementTextId="274178">
                <text>Attar , Issam</text>
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                <text>Naïli, Nabiha</text>
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                <text>Farhat, Abdelhamid</text>
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                <text>The continuous increase in the level of greenhouse gas emissions and the rise in fuel prices are the main driving forces behind the efforts for more effectively utilize various sources of renewable energy. In many parts of the world and specifically in Tunisia, the direct solar radiation is considered to be one of the most promising sources of energy. Annual sunshine can reach 3288 kWh/m2/year be 6 kWh/m2/day. A greenhouse using means active conventional heating consumes 1 litter of fuel/m2/year which leads to 10 kWh/m2/year. Tunisia surface of greenhouse crops is about 1000 hectares this corresponds to 107 l of foil and 108 kWh .In order to reduce the cost of heating the agricultural greenhouse we used the vacuum solar collectors .Their efficiency depends at the same time upon the ambient climatic conditions and the thermal performances of vacuum solar collectors. Capillary polypropylene exchangers are used to attenuate the differences between the diurnal and nocturnal air temperatures under the tunnel greenhouses. Water circulates in these exchangers at hydraulic closed circuit. In this work we have realized an experimental study of a solar energy heating system. Two types of studies have been done. During the day the suspended exchangers recover the energy in excess for the plants comfort. This recovered energy is stored into the greenhouse ground through the buried exchangers the first one concern the functioning temperature of the heating system installed near the greenhouse and used to heat the water stocked in a tank of 300 litters. In the second type, the energy stored in the ground will be restored through the underground exchangers during the night; thermal energy already stored in the tanks is brought back by the suspended exchangers to heat the air greenhouse. In order to prove the efficiency of our system, we present thermal results relative to the effect of the heater system on the greenhouse microclimate and the agronomic results of the greenhouse culture of tomato. These results are very interesting compared to an unheated greenhouse and had a high effect on tomato quality.</text>
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                <text>application/pdf</text>
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              <elementText elementTextId="274184">
                <text>https://revue.cder.dz/index.php/rer/article/view/344</text>
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              <elementText elementTextId="274185">
                <text>10.54966/jreen.v15i4.344</text>
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            <description>A language of the resource</description>
            <elementTextContainer>
              <elementText elementTextId="274186">
                <text>eng</text>
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            <name>Publisher</name>
            <description>An entity responsible for making the resource available</description>
            <elementTextContainer>
              <elementText elementTextId="274187">
                <text>Renewable Energy Development Center</text>
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            <description>A related resource</description>
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                <text>https://revue.cder.dz/index.php/rer/article/view/344/1499</text>
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          <element elementId="47">
            <name>Rights</name>
            <description>Information about rights held in and over the resource</description>
            <elementTextContainer>
              <elementText elementTextId="274189">
                <text>Copyright (c) 2021 Journal of Renewable Energies</text>
              </elementText>
              <elementText elementTextId="274190">
                <text>https://creativecommons.org/licenses/by-sa/4.0</text>
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              <elementText elementTextId="274191">
                <text>Journal of Renewable Energies; Vol. 15 No. 4 (2012): Volume 15 (Regular); 547 - 559</text>
              </elementText>
              <elementText elementTextId="274192">
                <text>Journal of Renewable Energies; Vol. 15 No 4 (2012): Volume 15 (Regular); 547 - 559</text>
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              <elementText elementTextId="274193">
                <text>2716-8247</text>
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                <text>1112-2242</text>
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              <elementText elementTextId="274195">
                <text>10.54966/jreen.v15i4</text>
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            <description>The topic of the resource</description>
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              <elementText elementTextId="274196">
                <text>Solar energy</text>
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              <elementText elementTextId="274197">
                <text>Greenhouse</text>
              </elementText>
              <elementText elementTextId="274198">
                <text>Energy storage</text>
              </elementText>
              <elementText elementTextId="274199">
                <text>Capillary heat exchanger</text>
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              <elementText elementTextId="274200">
                <text>Vacuum solar collector</text>
              </elementText>
            </elementTextContainer>
          </element>
          <element elementId="50">
            <name>Title</name>
            <description>A name given to the resource</description>
            <elementTextContainer>
              <elementText elementTextId="274201">
                <text>A heating system using flat plate collectors to control the inside greenhouse microclimate in Tunisia</text>
              </elementText>
            </elementTextContainer>
          </element>
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            <name>Type</name>
            <description>The nature or genre of the resource</description>
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              <elementText elementTextId="274202">
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              <name>Title</name>
              <description>A name given to the resource</description>
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            <name>Creator</name>
            <description>An entity primarily responsible for making the resource</description>
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              <elementText elementTextId="274153">
                <text>Louassa, Samira</text>
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                <text>Merzouk, Mustapha</text>
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                <text>Guerri, Ouahiba</text>
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              <elementText elementTextId="274156">
                <text>2023-10-25</text>
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            <description>An account of the resource</description>
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                <text>Les données vent relatives à la station météorologique de Tiaret, une ville située au centre des hauts plateaux algériens, ont été traitées afin d’évaluer les caractéristiques statistiques de la vitesse du vent et du potentiel éolien à une hauteur de 10 m au-dessus du sol. Une extrapolation de ces caractéristiques avec la hauteur est ensuite effectuée et les performances attendues de 4 types de turbines sont déterminées. Les résultats obtenus donnent un aperçu sur les ressources éoliennes disponibles dans cette région et mettent en évidence les périodes les plus favorables pour l’exploitation de cette énergie. Cette étude peut fournir des informations sur la possibilité de développement d’une ferme éolienne dans la région étudiée et nous permettre de faire le meilleur choix pour les types d’éoliennes qui s’adaptent le mieux aux conditions locales.</text>
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                <text>application/pdf</text>
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              <elementText elementTextId="274159">
                <text>https://revue.cder.dz/index.php/rer/article/view/342</text>
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              <elementText elementTextId="274160">
                <text>10.54966/jreen.v15i4.342</text>
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            <description>A language of the resource</description>
            <elementTextContainer>
              <elementText elementTextId="274161">
                <text>eng</text>
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                <text>Renewable Energy Development Center</text>
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            <description>A related resource</description>
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              <elementText elementTextId="274163">
                <text>https://revue.cder.dz/index.php/rer/article/view/342/1498</text>
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            <name>Rights</name>
            <description>Information about rights held in and over the resource</description>
            <elementTextContainer>
              <elementText elementTextId="274164">
                <text>Copyright (c) 2021 Journal of Renewable Energies</text>
              </elementText>
              <elementText elementTextId="274165">
                <text>https://creativecommons.org/licenses/by-sa/4.0</text>
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              <elementText elementTextId="274166">
                <text>Journal of Renewable Energies; Vol. 15 No. 4 (2012): Volume 15 (Regular); 533 - 545</text>
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              <elementText elementTextId="274167">
                <text>Journal of Renewable Energies; Vol. 15 No 4 (2012): Volume 15 (Regular); 533 - 545</text>
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              <elementText elementTextId="274168">
                <text>2716-8247</text>
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                <text>1112-2242</text>
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              <elementText elementTextId="274170">
                <text>10.54966/jreen.v15i4</text>
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            <description>The topic of the resource</description>
            <elementTextContainer>
              <elementText elementTextId="274171">
                <text>Weibull</text>
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              <elementText elementTextId="274172">
                <text>Vitesse du vent</text>
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                <text>Energie éolienne</text>
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                <text>Aérogénérateur</text>
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              <elementText elementTextId="274175">
                <text>Evaluation des performances de quatre types d’éolienne dans une zone aride</text>
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            <name>Type</name>
            <description>The nature or genre of the resource</description>
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              <elementText elementTextId="274130">
                <text>Bouzidi, Belkacem</text>
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                <text>Les habitants des régions sahariennes, malgré la faible densité de la population, doivent bénéficier de certaines commodités socio économiques pour éviter une migration vers les grands centres urbains. Cependant, les besoins pour l’approvisionnement en eau domestique, l’irrigation des récoltes et l’abreuvement des animaux augmentent en fonction de la croissance de la population. En l’absence des eaux de surface, les eaux souterraines localisées dans les couches aquifères semblent être la seule alternative à ce dilemme, mais difficile pour le pompage manuel et animal. La préservation des écosystèmes dans ces régions sahariennes ne peut être obtenue qu’avec la fixation de la population dans leurs régions par les moyens de l’amélioration et le développement de leur niveau de vie. Le développement socio-économique de ces régions est très lié à deux facteurs principaux qui sont la présence de l’eau et la disponibilité de l’énergie. Dans ce contexte, les énergies renouvelables de part leur fiabilité et leurs caractères non polluants, peuvent contribuer grandement au développement de ces régions éloignées. Le fonctionnement des systèmes photovoltaïques (PV) dépendent de plusieurs paramètres, appelés grandeurs d’influence entre autres, l’irradiation globale sur le plan des modules PV, la température des modules PV, etc. L’irradiation solaire varie donc selon la position géographique du site, les saisons, et l’angle d’inclinaison du générateur par rapport à l’horizontale. Ce travail présente donc les méthodes d’estimation du potentiel énergétique solaire sur le plan des modules photovoltaïques pour différents angles d’inclinaison par rapport à l’horizontal avec une application dans un système de pompage de l’eau.</text>
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                <text>Journal of Renewable Energies; Vol. 15 No. 3 (2012): Volume 15 (Regular); 521 -531</text>
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                <text>Journal of Renewable Energies; Vol. 15 No 3 (2012): Volume 15 (Regular); 521 -531</text>
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                <text>Système de pompage PV</text>
              </elementText>
              <elementText elementTextId="274147">
                <text>Angle d’inclinaison</text>
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                <text>Générateur photovoltaïque</text>
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                <text>Rendement</text>
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                <text>Effet de la variation de l’angle d’inclinaison du générateur sur le rendement des systèmes photovoltaïques Application aux systèmes de pompage de l’eau</text>
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                <text>Laïdi, Maamar</text>
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                <text>Hanini, Salah</text>
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                <text>La propriété associative des réseaux neurologiques artificiels et de leur capacité inhérente d’apprendre et identifier des rapports fortement non linéaires et complexes, les trouve idéalement convenus à une étendue des applications large dans le domaine du froid direct et indirect. Cet article traite les applications potentielles des réseaux neurones artificiels dans la particularité des problèmes thermiques soulevés par l’utilisation des fluides frigoporteurs diphasiques, tels que les coulis de glace (mélange de solutions binaires aqueuses et de cristaux de glace) dans les installations de distribution du froid. L’utilisation de ce type d’installation permet de diminuer, les quantités des fluides frigorigènes traditionnels, ainsi que les problèmes qu’ils engendrent, de réduire les volumes de stockage et les consommations d’électricité. La stratégie d’obtention du RN s'articule sur l'élaboration d'un programme sur MATLAB, comportant plusieurs boucles où on fait varier les algorithmes d’apprentissages, les fonctions d’activations, le nombre de couches cachées et le nombre de neurones dans chaque couche, afin de minimiser la fonction du coût sous contrainte d’une erreur relative fixée. Le modèle neuronal conçu a permis d’une part de reproduire avec une très bonne précision les données expérimentales tirées directement de littérature et d’autre part une estimation meilleure et plus précise des valeurs calculées par rapport aux modèles classiques (basé sur la formulation générale de la méthode enthalpique) des transferts thermiques dans le cas des solutions binaires dispersées sous forme d’émulsions ou de mini-émulsions subissant un changement de phase tirées directement de littérature.</text>
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                <text>https://revue.cder.dz/index.php/rer/article/view/340</text>
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                <text>eng</text>
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                <text>Renewable Energy Development Center</text>
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              <elementText elementTextId="274116">
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              <elementText elementTextId="274118">
                <text>Journal of Renewable Energies; Vol. 15 No. 3 (2012): Volume 15 (Regular); 513 - 520</text>
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                <text>Journal of Renewable Energies; Vol. 15 No 3 (2012): Volume 15 (Regular); 513 - 520</text>
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                <text>2716-8247</text>
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            <description>The topic of the resource</description>
            <elementTextContainer>
              <elementText elementTextId="274123">
                <text>Réseau de neurones</text>
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              <elementText elementTextId="274124">
                <text>Transfert thermie</text>
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                <text>Froid</text>
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                <text>Eutectique</text>
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            <elementTextContainer>
              <elementText elementTextId="274127">
                <text>Approche neuronale pour l’estimation des transferts thermiques dans un fluide frigoporteur diphasique</text>
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                <text>Bouchafaa, Farid</text>
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                <text>Chouder, Aissa</text>
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                <text>Boukhalfa, Saida</text>
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                <text>In this paper we study the stability of input voltages of the cascade consisting of a photovoltaic inverter and a three-level structure NPC, feeding a synchronous machine with permanent magnets (PMSM) commissioned by the speed command flow oriented. For this, we first present the modeling of the Photovoltaic, then modeling and strategy to control the inverter three-level structure NPC. In the end, to address the midpoint fluctuation and instability of input voltages at the terminals of the inverter, proposed a solution consisting of a bridge clamping which gave promising results.</text>
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                <text>https://revue.cder.dz/index.php/rer/article/view/339</text>
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                <text>eng</text>
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                <text>Renewable Energy Development Center</text>
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              <elementText elementTextId="274090">
                <text>Copyright (c) 2021 Journal of Renewable Energies</text>
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              <elementText elementTextId="274091">
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                <text>Journal of Renewable Energies; Vol. 15 No. 3 (2012): Volume 15 (Regular); 501 - 512</text>
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                <text>Journal of Renewable Energies; Vol. 15 No 3 (2012): Volume 15 (Regular); 501 - 512</text>
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                <text>Photovoltaic generator</text>
              </elementText>
              <elementText elementTextId="274098">
                <text>Multilevel PWM inverter</text>
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                <text>Digital MPPT</text>
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                <text>Voltage stability</text>
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                <text>Clamping bridge</text>
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                <text>PMSM</text>
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                <text>Stability of input voltages of a three-level inverter NPC fed by photovoltaic sources</text>
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                <text>Meflah, Aissa</text>
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                <text>L’objectif de ce mémoire est d’assurer une commande vectorielle associée à une électropompe asynchrone immergée. La configuration de ce système comporte un générateur photovoltaïque, un bus PV, un filtre PV connecté à un hacheur survolteur, un bus DC et un onduleur de tension alimentant une machine asynchrone couplée à une pompe centrifuge. L’objectif de ce système consiste à assurer un fonctionnement à puissance maximale du système photovoltaïque pour diverses conditions climatiques. L’adaptation entre le générateur photovoltaïque et la charge a été effectuée moyennant le convertisseur DC/DC.</text>
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                <text>https://revue.cder.dz/index.php/rer/article/view/338</text>
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                <text>Renewable Energy Development Center</text>
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                <text>Journal of Renewable Energies; Vol. 15 No. 3 (2012): Volume 15 (Regular); 489 - 499</text>
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                <text>Photovoltaïque</text>
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