Holographic Photovoltaic-Thermal Module for Window Louvre Integration: Design and Simulation
Abstract
A building integrated holographic concentrating photovoltaic-thermal system has been optically and energetically simulated. The system has been designed to be superimposed into a solar shading louvre; in this way the concentrating unit takes profit of the solar altitude tracking, which the shading blinds already have, to increase system performance. An energetic simulation has been conducted for Avignon (France), which is a European representative location suitable for solar applications with available atmospheric parameter and irradiance experimental data sets. The simulation tool utilized has been TRNSYS, coupled with MATLAB (where the ray-tracing algorithm to simulate the holographic optical performance has been implemented). In the frame of the simulation, a comparison with a conventional photovoltaic-thermal (PVT) module installed on the blinds and with the same area than the concentrator aperture one is conducted. The concentrator achieves an annual mean optical efficiency of 43.0%, an electrical energy production of 148.2 kWh/kWp and a thermal energy of 250.4 kWh/m2. On the other hand, the reference PVT module behaves very similar in terms of the thermal energy yielding 294.2 kWh/m2 but almost doubles the electrical annual production with 281.7 kWh/kWp.
Keywords
Solar energy, Solar concentration, Photovoltaics, Pvt, Holographic optical elements (hoe), Building integration, Energy dynamic simulation.