Enhancing Efficiency of PVT Systems Through Optimized Geometric Design and Nanoparticle-Enhanced Phase Change Materials Under Variable Solar Irradiance
نویسندگان
1 Power Plant Engineering Technology, State University of Malang, P. O. Box: 65145, Malang, Indonesia.
2 Department of Mechanical Engineering, Universitas Sebelas Maret, P. O. Box: 57126, Surakarta, Indonesia.
3 Fakulti Teknologi dan Kejuruan Mekanikal, Universiti Teknikal Malaysia Malaka, Hang Tuah Jaya, P. O. Box: 76110, Durian Tunggal, Melaka, Malaysia.
4 Power Plant Engineering Technology, State University of Malang, P. O. Box: 65145, Malang, Indonesia.
5 Department of Mechanical Engineering, Universitas Sebelas Maret, P. O. Box: 57126, Surakarta, Indonesia.
6 Department of Mechanical Engineering, Universitas Sebelas Maret, P. O. Box: 57126, Surakarta, Indonesia.
doi
10.30501/jree.2026.526475.2412چکیده
This study presents a comprehensive performance evaluation of Photovoltaic/Thermal (PVT) systems by examining the combined effects of collector geometric variations (triangular, pentagonal, and rectangular) and four types of nanoparticle-enhanced phase change materials (NePCM), namely Al₂O₃, CuO, SiO₂, and ZnO. Transient numerical simulations were conducted to analyze how these parameters influence the thermal and electrical efficiencies of the system under varying solar irradiance. The results indicate that the triangular collector integrated with SiO₂-based NePCM achieved the highest thermal efficiency of 12.445% and the highest electrical efficiency of 14.355%, outperforming all other tested configurations. Furthermore, ANOVA results confirm that geometry, material type, and solar irradiance have statistically significant effects on system performance (p < 0.05), with irradiance identified as the most influential factor due to its highest F-value. The findings highlight the importance of synergistic optimization between geometric design and advanced thermal storage materials to enhance overall PVT efficiency. This research contributes significantly to the development of high-performance solar energy systems through an integrated design approach that improves both thermal management and electrical output.
