Effect of the protective layer on the temperatures, in asphaltic concrete facing: case of Bouhnifia dam, North-West Algeria Online publication date: Mon, 26-Sep-2022
by Lynda Chebbah; Lakhdar Djemili; Mohamed Chiblak; Mohammed Tawfik Bouziane
International Journal of Hydrology Science and Technology (IJHST), Vol. 14, No. 3, 2022
Abstract: This study presents the modelling of the transient thermal transfer of conduction coupled by convection in ACF, in order to simulate temperatures using Fluent software, for two sites: The first is Ghrib dam with a raw ACF, whose data is used to validate the model. The second site is Bouhnifia dam; on its ACF three cases are simulated: the first case is a raw ACF to determine the temperature distribution, the second case is a ACF protected by a 12 cm thick reinforced concrete layer, and the third case is a ACF protected by a 12 cm thick porous concrete layer. For the first case, the modelling only concerns conduction, whereas for protected cases a convection heat transfer with a convection coefficient of 20 W/m2K is added. The modelling of the different cases is carried out for summer and winter periods, then a comparative study between the different cases, to determine which material has the power to better cool the ACF.
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