Akademik Veri Yönetim Sistemi
Journal of Building Engineering, cilt.103, 2025 (SCI-Expanded)
This study examines the thermal performance and impact on thermal comfort of an innovative wall combining Transparent Insulation Material (TIM), Phase Change Material (PCM), and an Air Gap (AG) to reduce building energy consumption. The wall boosts solar energy gains through TIM, prevents PCM overheating with AG, and utilizes PCM-integrated bricks as thermal mass. Using Ankara's climate data, its performance during heating (January, 21) and cooling (July, 21) was analyzed via numerical and dynamic simulations, focusing on heat transfer (Q), Decrement Factor (DF), and Time Lag (TL). MATLAB analysis of five organic PCMs with different melting points identified RT18HC for heating and RT22HC for cooling. The TIM-AG-PCM wall delayed temperature transmission by 8.33 h in heating and 4.38 h in cooling, with an amplitude reduction of 0.24. Dynamic simulation in HTflux showed a time shift difference of 33 min for heating and 28 min for cooling compared to MATLAB results, with DF and Q values showing 70 % and 95 % similarity, respectively. Mean Radiant Temperature (MRT) analysis in a virtual room demonstrated the wall's ability to reduce indoor temperature fluctuations and maintain conditions near thermal comfort. The conclusions confirm that the TIM-AG-PCM wall significantly improves thermal performance and contributes to energy efficiency in buildings.