Browsing by Author "Malek, A."

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    Optimization Methodologies Of Mixed Electrical Generators In Algeria Based On Renewable Application To Telecommunications Systems
    (University of Eloued جامعة الوادي, 2010-01-01) Zeraia, H.; Malek, A.; Larbes, C.
    This article deals of the optimization of renewable energy electric generators, for the alimentation of radio telecommunication systems. The principals’ interests of this system are the independence production, and the supplying of electric energy in isolated localities. Have at one’s the energetic and economic models, and simulation tools, we effected an optimization study based on mixed productions. For this approach, the energetic resources of sites where are implanted telecommunications systems and their consumption are supposed known. Then the problem is the optimization of electric generators using these resources, enable to have an optimal type system for the powering of telecommunications equipments in rural site of Algeria. Next it is quite possible to command these optimized generators by a control circuit. This circuit make possible to have according to availability of resources, one of mixed systems found, then telecommunications system be always supplied in any possible case, and without any shortage.
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    Study And Realization Of Device Of Solar Sensitive Tracking For A Prototype Of Cylindro-parabolic Concentrator
    (University of Eloued جامعة الوادي, 2010-01-01) Gama, A.; Larbes, C.; Malek, A.; Yettou, F.
    After the realization of a new prototype of concentrator through, we have study the realization of a sun tracking system in order to assure the best system efficiency throughout the day. We started in the first step by the blind sun tracking where we have acquired the good results. In this paper we try to speak about the realization of a new system of sun tracking who is the sensitive sun tracking. In this sort of tracking we have used a special telescope, like a sensitive element in for the detection of sun position. An electronic Card based PIC microcontroller is realized to pilot the mechanic system of the san tracking. In order to controlled the prototype we have put on a chain of data acquisition. The results were compared with the results of the blind sun tracking system and the stationary position, it was noted that the results were better this time and the efficiency is very important.