Publications Scientifiques

Permanent URI for this community

http://172.16.16.5:4000/handle/123456789/363

Browse

Browsing Publications Scientifiques by Subject "Algeria"

Now showing 1 - 3 of 3
  • Thumbnail Image
    Item
    Brine Evaporation Speed Enhancement by Solar Energy for Optimization of Salt Production of Lake Merouane El Oued Southeastern of Algeria
    (Journal of the Polish Mineral Engineering Society, 2020-02) ROUAIGUIA Issam (Co-Auteur)
    In this present paper we will study an assembly of two systems for collecting solar energy at the unit of SME (Salins Merouane El Meghaier) located in southeastern Algeria, by the development of a black grid floating in the brine and a reflection mirror of the solar radiation directed towards the evaporating surface in the test pan P4 and also a witness pan P0 which helps us to illustrate the influence of these two systems, results will be obtained suggest an increase in the evaporation-crystallization rate of P4 compared to that of P0 which is due to the improvement of the annual production of SME unit.
  • Thumbnail Image
    Item
    EXHAUSTIVE STUDY OF THE PV MODULE IMPLEMENTED IN THE REGION OF ANNABA ALGERIA
    (LATVIAN JOURNAL OF PHYSICS AND TECHNICAL SCIENCES, 2020) DEKHANE Azzeddine
    Algeria, like any other country, has drawn up its roadmap for the use and promotion of renewable energy sources. Motivated by its commitment to the international community in the fight against global warming and its possession of one of the largest solar fields in the world, a series of laws and institutions have consolidated this ambitious schedule. As known, both the climate and the geological area of Algeria take place among the foremost favoured countries in the field of solar energy. The present paper aims at proposing a simple model of photovoltaic module. The authors used Matlab/Simulink software to predict the current-voltage and power voltage characteristics according to the influence of several factors, such as solar irradiance, cell temperature and series resistance, on the efficiency of photovoltaic module. The proposed experimental investigation can easily predict the curves (current-voltage and power-voltage) of a PV module, where both of simulation and practical results are identical. A single-crystal line photovoltaic module was introduced close to Badji-Mokhtar Annaba University, Annaba (Algeria) to show the impact of climatic conditions in this coastal region and partial shading on characteristics
  • Thumbnail Image
    Item
    Optimal parameters of blasting destruction in the Ben Azouz quarry based on study of strenght limestone rock
    (Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, 2024) MAHTALI Houda
    Purpose. This paper highlights the importance of taking into account the evaluation of the strength properties of limestone rock in the Ben Azzouz quarry. The purpose is to achieve optimum blasting quality based on the information on petrophysical and mechanical characteristics of the rock. Methodology. Models have been developed to estimate physicomechanical properties of limestone rock. The models are based on the results of many laboratory tests by petrophysical and mechanical methods. Statistical analysis was performed on simple and multiple regression equations. Findings. Linear regression models have a higher estimated success rate, as expected. The best model for estimating the com pressive strength of the rock (UCS, Uniaxial ompression Strength) based on simple regression is the model containing PVeloc ity as an independent variable with a coefficient of determination R2 of 0.81 and Pvalue = 0.000000003. Originality. To benefit from the enormous reserves in the quarry of Ben Azouz, knowing that there is no evaluation of the physicomechanical characteristics of the rock, a set of the tests in the rock mechanics laboratory of polytechnic faculty of Mons in Belgium was carried out and limestone rock strength was estimated. Practical value. to Solid understanding of the physical and mechanical characteristics of the rock mass and the mechanism of blasting the rock is an essential step that must be taken gradually according to the development of mining works with the aim of minimizing the disadvantages in blasting and obtaining an optimal effectiveness.