NUMERICAL ANALYSIS OF THE PERFORMANCE OF AN INTEGRATED SOLAR PHOTOVOLTAICTHERMAL HYBRID AIR COLLECTOR SUITABLE FOR A VENTILATION DEVICE

摘要

This work concerns a solar PV/T hybrid air collector which can be integrated into a building roof. It is composed ofphotovoltaic modules that can be ventilated or not on the underside through an insulated air gap. Firstly, a steady state2D model of the component following a nodal approach is presented. The pressure gradient of temperature within thelayers is supposed to exist only in the direction of drainage of the stream of air. The temperature at each node can beconsidered as a mean temperature. The air gap is discretized through the collector length. Then, the prototype isstudied under a full building integration setup in order to determine its influence on the building energy demands. Theaddition of 4 m~2 of this solar collector in a building double flow ventilation system enables to reduce the heatdemands by nearly 1%. As further step, this numerical study will be carried out on a test bench in situ.