Browsing by Author "Ouali, S."

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    Impact of integrated clean energy on the future of the mediterranean: Exploitation of albian geothermal water in South Algeria
    (Elsevier Ltd, 2011) Ouali, S.; Benaïssa, Z.; Belhamel, M.; Khellaf, A.; Baddari, K.; Djeddi, M.
    The Intercalary Continental aquifer generally called Albian aquifer constitutes the main geothermal resource in South Algeria. Additionally it represents the biggest water reserve in the word. Albian aquifer is used since centuries, especially in the areas where it levels like Tidikelt Touat and Gourara. But however in other areas where this aquifer is deep and whose water is hot, the exploitation of the aquifer is rather difficult. As the only geothermal resource in southern Algeria, the Albian aquifer has a lot of interest from geothermal point of view; therefore good knowledge of the different routes of its exploitations is necessary to facilitate future applications of geothermal in the Saharan regions. The present article gives an overview about various modes of exploitation of the Intercalary Continental aquifer and the major problems which have occurred during exploitation. Finally is added discussion about the main applications of geothermal energy in South Algeria based on projects completed or in progress
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    Methane-air equivalence ratio effect on premixed turbulent low swirl stabilized flame
    (Institute of Physics, Polish Academy of Sciences, 2014) Ouali, S.; Bentebbiche, A.; Belmrabet, T.
    This work presents a numerical simulation of premixed methane-air low swirl stabilized flame, the geometry describes a low swirl burner kind. Reynolds average Navier-Stokes standard κ-ε model for turbulence coupling to partially premixed model for combustion were used with varying methane equivalence ratio from 0.6 to 1.4. Parameters governing flame structure are investigated; velocity, temperature, CH_4 distribution and thermal nitric oxide apparitions fields, results are compared and validated with experimental and large eddy simulation works cited in references, they offer good similarities for all flame parameters studied. Actual study works to find equilibrium between the maximum of generated temperature and the minimum of thermal NO pollutant emissions for low swirl burners without neglecting the flame stabilization which must be maintained