Application of Shallow Geothermal Energy Systems for Space Heating and Cooling in the City of Mostaganem

Shallow geothermal energy (SGE) is a renewable energy source that has become a sustainable alternative for heating and cooling buildings and infrastructure in many parts of the world. The research presented aims to quantify and valorize this shallow energy using a geothermal heat exchanger via a heat pump. A 3D numerical study based on the finite element method has been developed using "COMSOL Multiphysics" software, taking the climatology of the region concerned, the thermal properties of the site's soil and the interactions between the atmosphere-soil-heat exchanger into consideration. This work is divided into three parts: firstly, Richards' equation is used to calculate hydraulic variation as a function of time to determine Volumetric water content. After obtaining the volumetric water content the thermal conductivity of the soil and the volumetric heat capacity of the soil are deduced in order to determine the soil temperature profile, in the end heat transfer in the pipe is added to quantify the energy transferred to buildings for heating and cooling in the city of MOSTAGANEM.