Thierry Talbert

Modeling of a geothermal and thermal solar process

Abstract This paper is based on a project combining solar and geothermal energies used for heating an individual home located in a mountainous region of southern France (Saint-Pierre Dels Forcats town). A solar field consists of 10 thermal solar collectors, with a total area of 21.25 m 2 which recharge thermally a borehole of 100 m of depth. A heat pump extracts the heat energy to restitute it to the home with a heating floor of 100 m 2 . The long-term objective is to develop a predictive control on the global system to realize financial and energy savings. In order to do this, a modeling of all the subsystems has to be done. This paper focuses of two of these sub-systems, the solar field and the heat pump. Depending on the level of knowledge of each subsystem, a physical model (thermal solar collectors) or a artificial intelligence methodology (heat pump) is used.