Akademik Veri Yönetim Sistemi
Isi Bilimi Ve Teknigi Dergisi/ Journal of Thermal Science and Technology, cilt.45, sa.2, ss.296-316, 2025 (SCI-Expanded, Scopus)
Phase change materials (PCMs) reduce heating-cooling loads while improving thermal comfort in buildings. However, instead of applying it to the total building envelope, using it on different building components may increase energy consumption and local thermal discomfort. Unlike previous studies applying PCM across all building components, this study uniquely investigates the effects of integrating BioPCM into individual components, each with an equal PCM-applied surface area, considering their solar exposure due to orientation. By controlling both PCM area and orientation, this study provides a framework to isolate and quantify their combined effects on building thermal performance. Diurnal heating-cooling rates and thermal comfort are evaluated via predicted mean vote (PMV) maps and physiological stress grades at nine locations over five time intervals, focusing on hottest and transition periods under temperate climate conditions. Additionally, surface temperatures and heat storage rate variations were analyzed to characterize diurnal behavior. Results showed that all BioPCM scenarios mitigated cooling, with roof integration reaching a 25% reduction. Only east-west walls and roof notably reduced heating, with modest enhancements to sensation. The south wall minimized thermal stress, while the East wall still exhibited high stress grades during transitions. These limited effects were primarily due to insufficient BioPCM-applied area equally allocated, constraining full indoor thermal regulation potential.