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var str = 'Etude de la combustion HCCI du GNC enrichi à l'hydrogène à l’aide de Chemkin-Pro';
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]]>
Mode de combustion HCCI]]>
Gaz Naturel Comprimé]]>
Modèle Multi-zone]]>
Enrichissement par de l’hydrogène]]>
Chemkin-Pro]]>
L’objectif principal de ce travail de recherche était d’étudier les effets de l’addition de l’hydrogène H2 sur quelques caractéristiques thermochimiques de la combustion du GNC (Gaz Naturel Comprimé) à base de méthane CH4 dans un moteur thermique. Afin d’assurer un bon rapport puissance / consommation et pour répondre aux aveux des écologistes, on présente dans le présent travail une nouvelle piste de recherche sur un nouveau mode de combustion qui permet de s’affranchir en partie des systèmes de post-traitement des gaz d’échappement devenus très complexes et trop coûteux. Ce mode de combustion connu sous le nom 'HCCI', (Homogeneous Charge Compression Ignition). Les nouveaux concepts de combustion doivent permettre de réduire à la source les émissions polluantes. La combustion homogène pauvre est l'une des solutions qui répond à ces exigences. Pour ce faire, nous avons utilisé le code de simulation Chemkin-Pro pour suivre les évolutions de la température, de la pression et des émissions polluantes pour différentes quantités d’hydrogène ajouté. Cette étude a montré que l’ajout d’hydrogène au GNC est une alternative assez intéressante. Elle conduit à une diminution des délais d’inflammation, c'est-à-dire une augmentation de la réactivité et une diminution des émissions polluantes (exclusivement le NO et le CO2).]]>
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var str = 'Ouksel, Tayeb';
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]]>
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var str = 'Chelghoum, Abdelaziz';
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]]>
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var str = 'Mameri, Abdelbaki';
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]]>
Journal of Renewable Energies; Vol. 20 No. 3 (2017): Volume 20 (Regular); 423 - 431]]>
Journal of Renewable Energies; Vol. 20 No 3 (2017): Volume 20 (Regular); 423 - 431]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v20i3]]>
Renewable Energy Development Center]]>
2023-10-12]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/638/1201]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/638]]>
10.54966/jreen.v20i3.638]]>
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var str = 'Optimisation du traitement physico-chimique des eaux d’encres';
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]]>
Effluents d’encres]]>
Coagulation]]>
Floculation]]>
Optimisation]]>
plans d’expérience]]>
Les effluents d’encres doivent être traités avant rejet dans le milieu récepteur, le traitement physico-chimique est une technique de traitement efficace pour ces effluents. L’eau traitée respecte les normes marocaines de rejets, mais la forte consommation des réactifs lors du traitement est un point faible de cette technique. Dans cette étude, nous nous intéressons à l’optimisation du traitement physico-chimique par la combinaison des niveaux des facteurs susceptibles d’agir sur le traitement. Les réponses étudiées sont évidement la demande chimique en oxygène (DCO) et la turbidité. La méthode de conception expérimentale basée sur un modèle composite de 2ème ordre est employée. Les résultats obtenus ont permis de réaliser une réduction de la consommation du coagulant de 16.44 % et du floculant de 68.92 %.]]>
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var str = 'Touil, Salah';
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]]>
Journal of Renewable Energies; Vol. 20 No. 3 (2017): Volume 20 (Regular); 415 - 422]]>
Journal of Renewable Energies; Vol. 20 No 3 (2017): Volume 20 (Regular); 415 - 422]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v20i3]]>
Renewable Energy Development Center]]>
2023-10-12]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/637/1200]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/637]]>
10.54966/jreen.v20i3.637]]>
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var str = 'Etude numérique d’une structure de choc Phénomène d’interaction choc/couche limite';
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]]>
Interaction onde de choc-couche limite]]>
Structures tourbillonnaires]]>
Bulle de décollage]]>
Phénomènes de transition RR-MR]]>
Dans une certaine plage de nombre de Mach, l'interaction entre une onde de choc oblique et une couche limite s'effectue par une investigation numérique sur une plaque plane athermane, basée sur la résolution des équations de Navier-Stokes bidimensionnelles par le code Fluent. Cette interaction se matérialise sous la forme d'une onde de choc en 'lambda', décrite en premier par Mark en 1958. Elle peut être rencontrée dans les équipements des souffleries à haute enthalpie ou ceux relatifs à la distribution de gaz comprimés par exemple. Une bonne connaissance des phénomènes physiques intervenant dans de tels écoulements est nécessaire tant au point de vue des normes de sécurité qu'en terme d'accroissement des performances. Sous cette structure de choc, il se forme un bulbe de décollement massif engendrant une succession de structures tourbillonnaires en cas laminaire que turbulent due par l’effet du nombre de Mach amont qui est observé. Elle est suivie par un phénomène de transition de la réflexion régulière RR vers la réflexion de Mach MR pour le cas turbulent. Globalement les résultats numériques obtenus sont conformes avec ceux qui sont disponibles dans la littérature.]]>
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var str = 'Gouidmi, Hamza';
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]]>
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var str = 'Beghidja, Abdelhadi';
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]]>
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var str = 'Benderradji, Razik';
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]]>
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var str = 'Ihaddadène, Nabila';
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]]>
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var str = 'Raouache, Elhadj';
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]]>
Journal of Renewable Energies; Vol. 20 No. 3 (2017): Volume 20 (Regular); 397 - 413]]>
Journal of Renewable Energies; Vol. 20 No 3 (2017): Volume 20 (Regular); 397 - 413]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v20i3]]>
Renewable Energy Development Center]]>
2023-10-12]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/636/1199]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/636]]>
10.54966/jreen.v20i3.636]]>
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var str = 'Solar powered cars - The future challenges';
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]]>
Solar vehicle]]>
Fossil fuel]]>
Future challenges]]>
Solar panels]]>
We hear a lot in the media about the solar car, and that it would be the future car. We see also several examples of this kind in various parts of the world. In this work we would try to do a study which will respond to this question: whether is there currently a solar car, which will be an alternative to cars working with fossil fuel? To get an answer to this question we have to examine some manufactured models and analyze their various data, by studying each element of the vehicle. In second step and in order to confirm what we have concluded, we have to manufacture our car and conduct various tests.]]>
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var str = 'Taleb, Rachid';
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]]>
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var str = 'Saidi, Hemza';
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]]>
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var str = 'Chabni, Fayçal';
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]]>
Journal of Renewable Energies; Vol. 20 No. 3 (2017): Volume 20 (Regular); 389 - 396]]>
Journal of Renewable Energies; Vol. 20 No 3 (2017): Volume 20 (Regular); 389 - 396]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v20i3]]>
Renewable Energy Development Center]]>
2023-10-12]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/635/1198]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/635]]>
10.54966/jreen.v20i3.635]]>
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var str = 'Development of a numerical code to simulate the hydrodynamic energy potential, applied at Bou Ismail bay';
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]]>
Coastal hydrodynamics]]>
Wave propagation]]>
Wave modeling]]>
Wave energy]]>
Storm waves]]>
The knowledge of wave energy propagation in the shallow water allow us to understand the functioning of marine ecosystems and to give answers about several costal phenomena. In the Algerian coast, the waves are omnipresent with an energy that is stripped under different physical forms. The classification of areas with high hydrodynamic energy potential requires a large data flow, concerning the physical hydrodynamic parameters produced by this energy. In this study we have developed a numerical code based on various mathematical theories and equations describing the physical state of the wave, including the formulas of MUNK, Coastal Engineering Research Center, 'CERC' and of the French Central Hydraulics Laboratory, 'LCHF', based on the output data of the SWAN model. This code allowed us to measure several wave’s physical parameters sufficiently well in order to understand and quantify the energies transmitted along the coast. A spatial analysis of the obtained results allowed us to classify seven coastal stations with an average wave energy exceeding 20 kW/m in the stormy days.]]>
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var str = 'Amarouche, Khalid';
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]]>
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var str = 'Bachari, Nour El Islam';
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]]>
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var str = 'Houma, Fouzia';
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]]>
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var str = 'Boughrira, Abdelhak';
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]]>
Journal of Renewable Energies; Vol. 20 No. 3 (2017): Volume 20 (Regular); 377 - 388]]>
Journal of Renewable Energies; Vol. 20 No 3 (2017): Volume 20 (Regular); 377 - 388]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v20i3]]>
Renewable Energy Development Center]]>
2023-10-12]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/634/1197]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/634]]>
10.54966/jreen.v20i3.634]]>
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var str = 'Echangeur de chaleur air-sol à Ouagadougou: Revue de la littérature, étude analytique et expérimentation';
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]]>
Air-soil heat exchanger]]>
Cooling]]>
Literature]]>
Experimental prototype]]>
L’utilisation des échangeurs de chaleur air-sol (ECAS), pour le refroidissement des habitats connaît un développement important depuis quelques années. En zone sahélienne, la climatisation des habitats à partir des échangeurs de chaleur air-sol est une alternative dans un contexte d’insuffisance de l’énergie électrique. Dans ce travail, nous avons mené une revue de la littérature et une étude analytique de l’ECAS. Nous avons aussi présenté notre prototype expérimental mis en oeuvre à Ouagadougou. Cette étude a permis de déterminer les paramètres importants pour la mise en oeuvre d’un échangeur de chaleur air-sol.]]>
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var str = 'Kaboré, Boureima';
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]]>
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var str = 'Ouedraogo, Germain Wende Pouiré';
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]]>
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var str = 'Kam, Sié';
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]]>
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var str = 'Ousmane, Moktar';
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]]>
var options = {
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var str = 'Bathiébo, Dieudonné Joseph';
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]]>
Journal of Renewable Energies; Vol. 20 No. 3 (2017): Volume 20 (Regular); 363 - 375]]>
Journal of Renewable Energies; Vol. 20 No 3 (2017): Volume 20 (Regular); 363 - 375]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v20i3]]>
Renewable Energy Development Center]]>
2023-10-12]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/633/1196]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/633]]>
10.54966/jreen.v20i3.633]]>
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var str = 'Optimization of the use of beetroot (beta vulgaris) for the production of green energy';
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]]>
Beet]]>
Fermentation]]>
Distillation]]>
Biogas]]>
Ethanol]]>
Fertilizer]]>
This work aimed to conduct optimization method of ethanol production from using beet. To attain this objective, we propose to produce the distillation energy through biogas, and fertilizer for the culture of beet. We carried out some tests by using samples of red beets. These samples were subjected to fermentation, distillation with Vigreux column and methanization. The red beet was, a grinder, juice extractor, fermenters, fresh yeast, water, distillation device with a Vigreux column, two batch digesters, a balance and graduated containers. During the tests 376 ml of ethanol, 31 l of biogas and fertilizer evaluated at 1 kWh were obtained. The energy efficiency of production with this method stood at 58, 54 %. This discovery could be a solution to energy problems of many regions, an alternative to fossil energy while being a source of fertilizer. The proposed system does not reject waste: the carbon cycle and even that of nitrogen is closed. It is less costly and easy to put in place. He is environment friendly and has a good energetic performance.]]>
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var str = 'Yannibock, Hulda';
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]]>
var options = {
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var str = 'Aboubakar';
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]]>
var options = {
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var str = 'Njintang, Yanou Nicolas';
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]]>
var options = {
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var str = 'Mbofung, Carl Moses Fontum';
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]]>
Journal of Renewable Energies; Vol. 20 No. 2 (2017): Volume 20 (Regular); 347 - 361]]>
Journal of Renewable Energies; Vol. 20 No 2 (2017): Volume 20 (Regular); 347 - 361]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v20i2]]>
Renewable Energy Development Center]]>
2023-10-12]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/632/1195]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/632]]>
10.54966/jreen.v20i2.632]]>
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var str = 'Dynamic behavior overview of three conventional dc/dc converters used in PV MPPT system';
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]]>
Photovoltaic MPPT system]]>
Modeling]]>
dc/dc converter topologies]]>
Maximum power point (MPP)]]>
Damping factor]]>
Natural frequency]]>
To improve the performances of such perturbative maximum power point tracking (MPPT) algorithm, the real-time optimization of the algorithm designed parameters is used. Such optimization depends on the dynamic behavior of the whole photovoltaic (PV) MPPT system, and more especially, on that of the adopted dc/dc converter topology, which is used to realize the MPPT function. Therefore, the present paper shows an analytical study about the dynamic behavior of three conventional dc/dc converter topologies: boost, buck and buck-boost. For that, we establish the small-signal model for three cases of PV MPPT system that are composed each one with each of the above topologies, and then the transfer functions in the Laplace domain are drawn. In this approach, the dynamic behavior is defined by the natural frequency and damping factor parameters of the above systems. The comparison based on the variation of these two parameters, allows us having an overview about the dynamic behavior of the under study systems for the aim to implement a more efficient real-time MPPT algorithm.]]>
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var str = 'Snani, Hamza';
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var str = 'Amarouayache, Mohamed';
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var str = 'Bouzid, Aissa';
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]]>
Journal of Renewable Energies; Vol. 20 No. 2 (2017): Volume 20 (Regular); 319 - 333]]>
Journal of Renewable Energies; Vol. 20 No 2 (2017): Volume 20 (Regular); 319 - 333]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v20i2]]>
Renewable Energy Development Center]]>
2023-10-12]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/630/1194]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/630]]>
10.54966/jreen.v20i2.630]]>
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var str = 'Comparative study of three Maximum Power Point Tracking algorithms for photovoltaic modules';
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PV panel]]>
Boost converter]]>
MPPT]]>
P&O]]>
INC-COND]]>
FOCV]]>
Simulation]]>
This paper presents simulation of a photovoltaic panel connected to a load through a boost converter. Due to the nonlinear characteristics of the PV panel and in order to increase its performance, reduce cost of the application and improve the efficiency of the photovoltaic system, maximum power point tracking algorithm is necessary. We present also an implementation of three maximum power point tracking algorithms: Perturb and Observe (P&O), Incremental Conductance (INC-COND) and Fractional Open Circuit Voltage (FOCV) which are widely studied and used in many researches papers. Experimental and simulation results are obtained using Matlab/Simulink software. The results show the efficiency of these MPPT algorithms in tracking the maximum power and its faster response to adapt to the change in irradiation condition.]]>
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var str = 'Amara, Karima';
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var str = 'Amara, Yasmine';
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var str = 'Malek, Ali';
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var str = 'Hocine, Dalila';
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var str = 'Bourennane, El-Bay';
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]]>
Journal of Renewable Energies; Vol. 20 No. 2 (2017): Volume 20 (Regular); 309 - 318]]>
Journal of Renewable Energies; Vol. 20 No 2 (2017): Volume 20 (Regular); 309 - 318]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v20i2]]>
Renewable Energy Development Center]]>
2023-10-12]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/629/1193]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/629]]>
10.54966/jreen.v20i2.629]]>
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var str = 'A variable step size fuzzy MPPT controller improving energy conversion of variable speed DFIG wind turbine';
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DFIG]]>
Fuzzy logic]]>
MPPT]]>
Perturbe & Observe]]>
Tip speed ratio]]>
Wind turbine]]>
With the world’s fastest growing rate and the prominent part of installed renewable energy sources, it is clear that wind is now a mainstream source of energy supply that will play a leading role in the proclaimed fight against climate change. But becoming mainstream means also assuming new responsibilities, including ensuring the reliable and cost-effective functioning of the overall energy system. In this context, this paper deals with the problem of extracting the wind turbine maximum power, power that depends on the random nature of wind speed and the nonlinear characteristic P = f(w) making it more difficult to extract. For this task, we propose a variable step size fuzzy maximum power point tracking controller. The proposed controller is tested on wind turbine based on a doubly-fed induction generator controlled by a field-oriented control implemented using Matlab/Simulink environment. Simulation results are presented showing a net improvement using the proposed MPPT to converge toward the optimal point with good accuracy and low oscillations around the MPP point achieving better performances.]]>
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var str = 'Harrag, Abdelghani';
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var str = 'Messalti, Sabir';
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]]>
Journal of Renewable Energies; Vol. 20 No. 2 (2017): Volume 20 (Regular); 295 - 308]]>
Journal of Renewable Energies; Vol. 20 No 2 (2017): Volume 20 (Regular); 295 - 308]]>
2716-8247]]>
1112-2242]]>
10.54966/jreen.v20i2]]>
Renewable Energy Development Center]]>
2023-10-12]]>
Copyright (c) 2021 Journal of Renewable Energies]]>
https://creativecommons.org/licenses/by-sa/4.0]]>
https://revue.cder.dz/index.php/rer/article/view/628/1192]]>
application/pdf]]>
eng]]>
info:eu-repo/semantics/article]]>
info:eu-repo/semantics/publishedVersion]]>
https://revue.cder.dz/index.php/rer/article/view/628]]>
10.54966/jreen.v20i2.628]]>