Experimental and numerical analysis of the energy performance of a water/soil exchanger coupled to a cooling floor for North Africa

•An experimental study on the energy performance of a water/soil exchanger coupled to a cooling floor.•The experimental results obtained were subjected to validation to those resulting fromthe simulation.•We have shown the effect of regulation and night ventilation on the energy performance of the geothermal system studied.•The effect of the climate site, depth and volume on the water temperature of the buried tank was studied.•In order to optimize cooling energy performance of the exchanger water/soil, parametric study was done.