42 research outputs found

    Retour sur la première expérience de l’hybridation par le solaire PV des centrales de production d’électricité conventionnelles alimentant les Réseaux Insulaires du Grand Sud Algérien

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    The Algerian electric system consists of the northern interconnected grid, the “Pôle In Salah – Adrar – Timimoun” regional grid and many mini-grids supplying dispersed localities in the Great Algerian South. Although these mini-grids share, as of end-2018, only 4% of the whole country power generation capacity, the huge renewable energies, mainly solar PV, potential availability stimulates, in the framework of the efforts deployed towards a low-carbon energy transition, to integrate PV to existing fossil fuels-based power plants. In this context, this paper presents the first attempt achieved by SKTM, a subsidiary of Sonelgaz, by the integration of PV power plants to the power generation systems supplying Tamanrasset, Tindouf and Djanet localities. Positive outcomes in terms of fuel saving and CO2 emissions reduction which would be retrieved from this first experience are highlighted

    Landscape Public Access to ICTs Country Profile: Algeria

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    This research focuses on the public access to information and communication landscapes in 24 countries, with specific focus on public libraries, to understand the information needs of underserved communities, public access to information and communication venues, and the role of ICT. Through field research in 24 countries conducted by local research partners, and cross-country comparative analyses based on common research design elements (see list of countries and research design overview in Appendix), the project aims to contribute to the knowledge in the field of information and ICT for development. Of particular interest and value are: the comparative look at key venues (libraries and other), and the mix of depth of in-country knowledge with breadth of global comparison to elicit success factors and scenarios to understand how diverse populations can and do access and use ICT to improve their lives. All outputs of this research will be broadly disseminated to interested stakeholders and placed in the public domain.Bill & Melinda Gates Foundatio

    Public Access to Information & ICTs Phase II Report, Algeria

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    This research focuses on the public access to information and communication landscapes in 24 countries, with specific focus on public libraries, to understand the information needs of underserved communities, public access to information and communication venues, and the role of ICT. Through field research in 24 countries conducted by local research partners, and cross-country comparative analyses based on common research design elements (see list of countries and research design overview in Appendix), the project aims to contribute to the knowledge in the field of information and ICT for development. Of particular interest and value are: the comparative look at key venues (libraries and other), and the mix of depth of in-country knowledge with breadth of global comparison to elicit success factors and scenarios to understand how diverse populations can and do access and use ICT to improve their lives. All outputs of this research will be broadly disseminated to interested stakeholders and placed in the public domain.This research focuses on the public access to information and communication landscapes in Algeria, with specific focus on the information needs of underserved communities, public access to information and communication venues, and the role of ICT. We examine the physical infrastructure and human resources of a variety of such venues, information content and service usage patterns, communication & knowledge production, as well as environmental factors such as governmental policies, geography, ethnic and linguistic differences etc. we finally suggest a set of recommendations that stakeholders, decisions makers have to follow in order to improve the situation.Bill & Melinda Gates Foundatio

    Étude et dimensionnement d’un convertisseur statique pour la connexion d’un générateur photovoltaïque au réseau

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    165 p. : ill. ; 30 cmThe must developed application of the photovoltaic solar energy in this last decade is certainly the connected to grid, this system permits us to inject the surplus of energy provided from the photovoltaic generator to grid, or to extract some, if the consumer needed to it. In order to connect these facilities to the grid it is necessary to use an inverter, which is the main piece of this installation that is constituted of: 1. A photovoltaic generator. 2. A DC/DC converter to track the maximal power point. 3. An inverter uses as interface between the generator and the grid. For this topic, ower work is organized in three essential parts: 1. A description of the photovoltaic generator and parameters influencing the energy are giving in the mathematicals models used in simulation 2. A review on main choppers used in these facilities to track the maximal power point and methods used for the determination of the reference tension 3. Some historics about inverters used for connection to the utility, its principle of working with addition of static compensator and activates filtering of the harmonic functions, determination of the switch nature used and values of all components that constitute this inverter, follow-up by has simulation with MATLAB/SIMULINK5.0 of this system while adopting two technical of orders: PWM and by hysteretic Finally, the analysis of the results are given and we give perspectives for the future works and recommendations for the realization of this inverte

    Landscape Public Access to ICTs Summary: Algeria

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    This research focuses on the public access to information and communication landscapes in 24 countries, with specific focus on public libraries, to understand the information needs of underserved communities, public access to information and communication venues, and the role of ICT. Through field research in 24 countries conducted by local research partners, and cross-country comparative analyses based on common research design elements (see list of countries and research design overview in Appendix), the project aims to contribute to the knowledge in the field of information and ICT for development. Of particular interest and value are: the comparative look at key venues (libraries and other), and the mix of depth of in-country knowledge with breadth of global comparison to elicit success factors and scenarios to understand how diverse populations can and do access and use ICT to improve their lives. All outputs of this research will be broadly disseminated to interested stakeholders and placed in the public domain.Bill & Melinda Gates Foundatio

    Long-term preservation of ETDs in Algeria: discussion through the CERIST Deposit system

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    In Algeria, and according to an official decree issued in August 2000 by the Ministry of Higher Education and Scientific Research, an electronic copy of every Master's and PhD thesis defended in every academic institution must be deposited at CERIST Research Center. This as a condition to get the diploma. CERIST is then entrusted with a mission to build a database of national theses and update of the national inventory of current theses and researches. However a serious problem of archiving and preserving of these ETDs is more and more arising. Thus, We have noticed that from December 2001 until November 2002 a great number of ETDs is deposited and constitute a set of more than 1000 floppy discs and 100 CD-ROMs. What would guarantee that these digital materials deposited by students might be preserved and safeguarded? What would guarantee that the content of these materials might be preserved and accessible at any time regardless the machine, the operating systems, and software. the user will be running in the future? Through our paper we will clarify the problem of the long-term conservation and preservation of electronic documents in the Algerian context? And in which way we may apply an international recognised standards and techniques for setting up and organising the local ETD's archives

    Solar Energy Potential Assessment in the Algerian South Area: Case of Ghardaïa Region

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    Due to its geographical position in the solar belt, Algeria is blessed with an abundance of solar energy and has the opportunity to utilize this bounty of natural energy effectively, promoting a clean environment and developing renewable energy technologies in the region. This paper assesses and analyses the solar energy potential in Ghardaïa area (south Algeria) to help users for solar energy applications. A database of solar radiation components has been employed for this purpose. The data presented in the paper are compared with other data supplied by renowned regional and international establishments, such as the solar atlas for the Mediterranean and the NASA. The frequency and the hourly distribution of solar radiation components indicate that the region is considered as an economical area and favorable for solar applications, such as the photovoltaic and the concentrating solar power (CSP) technologies. In addition to solar radiation, data of two functions, namely, clearness index and sunshine fraction have been examined; their results specify that the site has a clear sky conditions in most time of the year. In general, the obtained results illustrate that the site under consideration can use solar energy as a promising solution to conventional energy
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