Publications Scientifiques

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    A new approach for designing small horizontal axis wind turbine blades
    (American Institute of Physics, 2024) Deghoum, Khalil; Al-Tamimi, Adnan N. Jameel; Gherbi, Mohammed Taher; Hamidatou, Smail; Abdullah, Oday Ibraheem
    In recent years the importance of wind energy has been increasing to be one of the most important renewable energy sources. In this study, the blade design of a small 5 kW wind turbine was optimized to obtain an optimal shape in order to increase the power and facilitate the fabrication process. The Betz method and the linearization design method was adopted to design the new shape. Using the blade element momentum theory (BEM), to compare the results of the initial design and linear design. Based on obtained results, it was found that the coefficient of power of the initial design is 0.44 at TSR equal to 6, while the new linear design is 0.47 at TSR equal to 5, meaning that there is an improvement of 6.38%, as the increase in power for the new design appears at lower speeds.
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    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.
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    Analysis of the bauschinger effect on a multilayer helicopter blade by XFEM simulation
    (Elsevier, 2017) Nour, Abdelkader; Gherbi, Mohamed Tahar; Tawfiq, Imad
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    Impact of the fuselage damping characteristics and the blade rigidity on the stability of helicopter
    (Elsevier, 2013) Chellil, Ahmed; Nour, Abdelkader; Lecheb, Samir; Kebir, H.; Chevalie, Y.
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    Aeroelastic stability analysis of composite rotor blade
    (IEEE, 2013) Chellil, Ahmed; Settet, A.T.; Lecheb, Samir; Nour, Abdelkader