Modélisation nanothermique des systèmes Thermo/Photovoltaïques applications aux collecteurs hybrides PVT"

Abstract

"The PVT coupling is to combine a photovoltaic (PV) to a thermal heating system (heat sensor), such a system allows to improve the efficiency of the PV module (negative effect of decreased temperature) while extracting heat calories useful heating. The objective of this study was to evaluate the energy performance of a new hybrid photovoltaic thermal sensor (PV/T) based on a new configuration of the absorber developed within the Unit for Applied Renewable Energy. The study is done as follows; modeling the energy performance of the hybrid prototype MATLAB in one dimension in dynamic mode. And seen to predict the performance of the system in real conditions a digital 3D simulation with commercial software has been implemented, our choice fell on the Comsol Multiphysics software. Model validation was performed experimentally; the simulation results are in good agreement with experimental measurements. The advantage of such a structure is the simplicity of implementation by contribution to the model of PV/T tube and energy saving improvement comparing to that in the model PV/T vessel, not to mention the lower cost resulting from the use of galvanizing steel in the manufacture of the absorber compared to copper. A numerical approach of a second new configuration of PV/T hybrid collector was established under COMSOL to confirm the feasibility of such a design. From the simulation results, we find that this second PVT configuration can effectively reduce the temperature of the photovoltaic module and consequently improve the electrical performance."