Title: Effect of the protective layer on the temperatures, in asphaltic concrete facing: case of Bouhnifia dam, North-West Algeria
Authors: Lynda Chebbah; Lakhdar Djemili; Mohamed Chiblak; Mohammed Tawfik Bouziane
Addresses: Mohamed Khider University, BP 145 RP, 07000 Biskra, Algeria ' Badji Mokhtar University, PB 12, 23000 Annaba, Algeria ' Damascus University, PB 30621 Damascus, Syria ' Mohamed Khider University, BP 145 RP, 07000 Biskra, Algeria
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.
Keywords: dam; asphaltic concrete facing; thermal modelling; porous concrete; reinforced concrete; Algeria.
International Journal of Hydrology Science and Technology, 2022 Vol.14 No.3, pp.289 - 305
Accepted: 15 Dec 2020
Published online: 26 Sep 2022 *