Akademik Veri Yönetim Sistemi
ENERGY FOR SUSTAINABLE DEVELOPMENT, cilt.93, 2026 (SCI-Expanded, Scopus)
The increasing global population and the environmental impacts of fossil fuel consumption have accelerated the transition toward renewable energy technologies. In this study, the performance of an aluminum air duct photovoltaic-thermal (PVT) collector was experimentally enhanced using an aluminum wool-filled double-pass configuration. Three systems were fabricated and tested: a single-pass aluminum air duct PVT collector (SPAC/PVT), a double-pass aluminum air duct PVT collector (DPAC/PVT), and a double-pass aluminum air duct PVT collector filled with aluminum wool (WFDPAC/PVT). Experiments were conducted at two airflow rates (approximate to 0.011 kg/s and approximate to 0.013 kg/s) under solar radiation levels ranging between 652 and 765 W/m(2). At high airflow rates, maximum thermal efficiencies of 73.68%, 78.60%, and 91.57% were obtained for SPAC/PVT, DPAC/PVT, and WFDPAC/PVT, respectively, corresponding to an improvement of approximately 13-15% compared to the conventional double-pass configuration. The thermal exergy efficiencies were calculated as 3.37%, 7.79%, and approximately 10%, respectively, exceeding the commonly reported 3-8% range for air-based PVT systems. The WFDPAC/PVT system also achieved the highest coefficient of performance (COP) of 12.94, particularly under colder ambient conditions, demonstrating its suitability for low-temperature climates. In terms of economic performance, the WFDPAC/PVT configuration yielded the lowest unit energy cost of $2.11, representing an approximately 49% reduction compared to the conventional system. The results confirm that the integration of aluminum wool as a porous heat transfer enhancement material significantly improves the thermal, exergetic, and economic performance of double-pass PVT collectors.