Publications Scientifiques

Permanent URI for this communityhttps://dspace.univ-boumerdes.dz/handle/123456789/10

Browse

Has files: YesSubject: search.filters.subject.Distribution

Search Results

Now showing 1 - 3 of 3
  • No Thumbnail Available
    Item
    An algorithmic approach for the distribution of the blades of a gas turbine rotor
    (Editura Politechnica, 2024) Houari, Amin; Amroune, Salah; Chellil, Ahmed; Madani, Kouedar; Saada, Khalissa; Farsi, Chouki
    Our study focuses on the critical steps of balancing and maintaining the turbine rotor in electricity production companies. We aim to develop a MATLAB program for blade distribution to optimize the turbine's performance. We conducted practical tests using the BLADIS software from a major company in the field and compared it with the test data from our program. We performed three blade distribution experiments using the initial static moment values of each blade, which the MEI Company's (Sonelgaz-M'sila) electronic balance provided. Our main objective is to propose a new algorithm for turbine rotor blade distribution using a MATLAB subroutine that remains applicable during maintenance operations, including punctual blade changes. This proposed algorithm will help improve the turbine rotor's efficiency and performance. Electricity production companies to maintain their turbines and optimize energy output can use our study’s findings and algorithm. By implementing our proposed algorithm, companies can save costs and increase their energy efficiency, making them more competitive in the market.
  • No Thumbnail Available
    Item
    Diversity and distribution of the hymenopterofauna in northern and western Algeria
    (University of El Oued, 2020) Ghobrini, Khadjidja; Bendifallah, L.; Marniche, F.; Saharaoui, L.
    The study of the Hymenoptera fauna associated with the Fabaceae is carried out in different environments in the Northern and Western Algeria. Insect sampling was carried out at seven sites representing three regions with different ecosystems and bioclimatic stages, namely: Algiers, Boumerdes and Tissemssilt. The results obtained show a total of 1022 individuals captured representing 59 taxa, distributed in 46 genera and 18 families. Qualitatively, the Boumerdes region is the richest with 648 individuals; it is followed by that of Algiers then Tissemssilt with respectively 191 and 181. In most of the stations, the dominant family in terms of individuals is that of Apidae whose the rate exceeds 60%. The honey bee Apis mellifera intermissa has a remarkable relative abundance varying between 50% and 89%.
  • No Thumbnail Available
    Item