Optimizing Gas-Filled Interspaces for a Computational Analysis of the Performance of Double-Glazed Photovoltaic Thermal Hybrid.

Reducing losses of energy and destroyed exergy requires optimizing the space between double glazings. Air's poor thermophysical characteristics limit its ability to reduce heat loss in double-glazed Photovoltaic thermal (PV-T) systems. The aim of this study is to investigate how gases like argon, xenon, krypton, sulfur dioxide, and carbon monoxide, when trapped within double glazing and positioned between the inner glass and the absorber (PV model), affect the efficiency, useful heat energy, overall heat loss coefficient, and outlet temperature of the Photovoltaic thermal panel. The research uses the new Eismann correlation to repeatedly measure heat transfer in spaces filled with gases, helping to find the best distances. He also looks into how these gases impact exergy efficiency, destruction energy, and system energy. Among these rare gases, Xenon performs the best in terms of thermal performance, followed by Krypton and Argon when compared to air. Specifically, their total combined efficiency of different filling gases is 49.35% (Xenon), 48.72% (Krypton), 48.02% (Argon), 47.71% (sulfur dioxide), 47.05% (carbon monoxide), and 46.92% (air). The ideal gas-filled spaces for these total combined efficiencies are 5 mm for Xenon, 6 mm for Krypton, 9 mm for Argon and sulfur dioxide, and 10 mm for carbon monoxide and air. The exergy approach confirms these results, showing the same optimal gas-filled space widths. [ABSTRACT FROM AUTHOR]