http://archives.univ-biskra.dz/handle/123456789/680 Thu, 09 Apr 2026 20:21:36 GMT 2026-04-09T20:21:36Z http://archives.univ-biskra.dz/handle/123456789/1055 Titre: Les aspects technologiques des éoliennes et leur utilisation dans la production d’énergie dans les zones arides Auteur(s): BELGUIDOUM, Abdelhamid Résumé: Wind energy isa promisingrenewable energyto replacefossil fuels.This paperdiscusses atechnological aspectof wind turbines.It examinesaspects relatedtothe wind. Thenhesets out specificequationsthat governthe operation of ahorizontal axis wind turbine, hencethe theory ofBetz,andthe use ofequationsof theaerodynamicaction of the wind, reaching theequations givingtheaerodynamicparameters of aperformanceblade.The importantcontribution of this workis to analyzethe mechanical behaviorof a wind turbinebladeNACAguy withdifferentconditions, innormal operation, burstinand endinstorm.The analysisinvolves thedesignof the blade withdesign software, en suiteimportof the blade inasoftwarefinite elementcalculation, it is necessary to modelevery effortsufferedthe blade.It was necessary toovercomethe difficulties related tothe complex geometryof the bladeand thejunction ofthe skin of thecomposite bladeinhisheartfoam. Tue, 01 Jan 2013 00:00:00 GMT http://archives.univ-biskra.dz/handle/123456789/1055 2013-01-01T00:00:00Z http://archives.univ-biskra.dz/handle/123456789/1053 Titre: Identification et analyse des principaux facteurs influant le comportement thermique d’un échangeur air/sol enterré Auteur(s): SAADEDDINE, Mohamed Résumé: The thermal inertia of the soil allows it to maintain a stable temperature at certain depths, regardless of air temperature at the surface. We exploit this property by using a heat exchanger (air -soil) buried at depths appropriate, where a current of air passes through them for later use in air conditioning or heating. This work aims to study the factors that control the thermal behavior of these exchangers, where we first give a detailed definition of the latter, then we realized a mathematical model whose goal is to calculate the temperature for the soil any depth and any day of the year. And we made a numerical modeling to simulate the air temperature at the exit of the exchanger, for each day during the summer in the region of Biskra Tue, 01 Jan 2013 00:00:00 GMT http://archives.univ-biskra.dz/handle/123456789/1053 2013-01-01T00:00:00Z http://archives.univ-biskra.dz/handle/123456789/1054 Titre: Développement d’un logiciel de simulation des performances thermiques des capteurs solaires plans Auteur(s): Ferdjani, Ahmed Taha Résumé: The current development of the field of computer science, is a help to the simulation of the performance of energy conversion systems, simulate the right choice of the elements and a better adaptation to various industrial and domestic uses. The programming and the development of a software simulation of thermal performance of flat plate air collector with DELPHI tool is the essential subject of this work. In this study it was highlighted chart, the approach of design and validation of the thermal performance about the flat plate collector by software computer simulation Tue, 08 Jan 2013 00:00:00 GMT http://archives.univ-biskra.dz/handle/123456789/1054 2013-01-08T00:00:00Z http://archives.univ-biskra.dz/handle/123456789/1052 Titre: Conception par la CAO des parties fixes d’une éolienne et les solutions technologiques de liaisons de l’installation Auteur(s): Hamza, Soumia Résumé: This study focuses to the essentiel part of the wind tubine which is the tower . The tower can be hold the wind turbine rotor at the certain height to must have highest wind speed and regular. The interest of this study is justified in order to minimize the cost it only represents about 30% of the total cost of the wind turbine. Our contribution through this work is to present the approach for the calculation of such a structure has several features, we lock firste through a phase of modeling and calculation of the various demands for operation of the tower and its geometry, then comes the computation required for verification of resistance to extreme loads operation. The calculation tool is the finite elements. Studied tower is a tower of tubular form made about steel having a height of 78 meters which may be hold 1.6 MW turbine power. The results illustrate the behavior of the tower, identify the section most attract and check the resistance of the structure according to the standards places Tue, 08 Jan 2013 00:00:00 GMT http://archives.univ-biskra.dz/handle/123456789/1052 2013-01-08T00:00:00Z