Numerical and Experimental Study of the Thermal Efficiency of an Air-Soil Heat Exchanger in the Sahelian Zone
Boureima Kaboré *
Laboratory of Research in Energetic and Space Meteorology, Université Norbert ZONGO, Koudougou, Burkina Faso and Laboratory of Renewable Thermal Energies, Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso.
Germain Wende Pouiré Ouedraogo
Laboratory of Renewable Thermal Energies, Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso and Université de Fada N’Gourma, Fada N’Gourma, Burkina Faso.
Adama Ouedraogo
Laboratory of Renewable Thermal Energies, Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso and Centre Universitaire Polytechnique de Kaya (CUP-Kaya), Kaya, Burkina Faso.
Sié Kam
Laboratory of Renewable Thermal Energies, Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso.
Dieudonné Joseph Bathiebo
Laboratory of Renewable Thermal Energies, Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso.
*Author to whom correspondence should be addressed.
Abstract
In the Sahelian zone, air conditioning in house by air-soil heat exchangers is an alternative in the context of insufficient of electrical energy. In this work, we carried out a numerical and experimental study of thermal efficiency of an air-soil heat exchanger. This study provided an estimation of thermal efficiency of an experimental air-soil heat exchanger during June, July and August 2016. Numerical results provided a better understanding of the influence of parameters such as tube length, air velocity and soil temperature on the thermal efficiency of this system.
Keywords: Sahelian zone, air-soil heat exchanger, cooling, thermal efficiency